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HomeMy WebLinkAboutLUA-04-122CITY OF RENTON, W ASlDNGTON RESOLUTION NO. 3739 A RESOLUTION OF THE CITY OF RENTON, WASHINGTON, ADOPTING THE 2005 WATER SYSTEM PLAN. WHEREAS, the 2005 Water System Plan ("Plan") was reviewed by the City of Renton Environmental Review Committee, which issued a Detennination of Non-Significance; and WHEREAS, a Notice of Environmental Determination was made public, and no comments or appeals were received during the public comment and appeal periods, which ended November 29, 2004; and WHEREAS, the Plan was presented to the Renton City Council, discussed at a meeting of the Utilities Committee, and recommended for adoption by the full City Council; and WHEREAS, the Plan is compatible with the intent of the City's adopted Comprehensive Plans; NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF RENTON, WASlDNGTON, DO RESOLVE AS FOLLOWS: SECTIONL The above findings are true and correct in all respects. SECTIONn The 2005 Water System Plan is hereby adopted by the City of Renton. PASSED BY THE CITY COUNCIL this 7 th day of February ,2005. Bonnie I. Walton, City Clerk 1 RESOLUTION NO. 3739 APPROVED BY THE MAYOR this 7 th day Of-=-F-=e=b=-ru-..a~r=-.lY;"--___ ----'" 2005. Kathy K lker-Wheeler, Mayor Approved as to form: ;£~~~ Lawrence J. Warren, ei ~eyi RES. 1 086: 1I12/05:ma 2 CITY OF RENTON PLANNING / BUILDING / PUBLIC WORKS MEMORANDUM Date: January 24, 2005 To: City Clerk's Office From: Holly Graber Subject: Land Use File Closeout Please complete the following information to facilitate project closeout and indexing by the City Clerk's Office. Project Name: 2005 Update to Water System Plan LUA (file) Number: LUA04-122, ECF Cross-References: AKA's: Water System Plan -2005 Update Project Manager: Susan Fiala Acceptance Date: October 18, 2004 Applicant: City of Renton -Water Utility Owner: City of Renton Contact: JD Wilson PID Number: ERC Decision Date: November 9, 2004 ERC Appeal Date: November 29, 2004 Administrative Approval: Appeal Period Ends: Public Hearing Date: Date Appealed to HEX: By Whom: HEX Decision: Date: Date Appealed to Council: By Whom: Council Decision: Date: Mylar Recording Number: Project Description: 2005 UPDATE TO CITY OF RENTON WATER SYSTEM PLAN The Water Utility Division is updating the City of Renton Water System Plan. The plan covers ali aspects of the City's domestic water supply including, but not limited to: water supply, water demand, cross-connection, water agreements and water quality standards. Water demands are projected to 2025. The plan is a planning tool for improving, maintaining and operating the drinking water system. Location: STATE OF WASHINGTON, COUNTY OF KING} AFFIDAVIT OF PUBLICATION PUBLIC NOTICE Lori Tedder, being first duly sworn on oath that she is a Legal Advertising Representative of the King County Journal a daily newspaper, which newspaper is a legal newspaper of general circulation and is now and has been for more than six months prior to the date of publication hereinafter referred to, published in the English language continuously as a daily newspaper in King County, Washington. The King County Journal has been approved as a Legal Newspaper by order of the Superior Court of the State of Washington for King County. The notice in the exact form annexed was published in regular issues of the King County Journal (and not in supplement form) which was regularly distributed to its subscribers during the below stated period. The annexed notice, a Public Notice was published on Monday, 11115/04 The full amount of the fee charged for said foregoing publication is the sum of $95.13 at the rate of $15.50 per inch for the first publication and NIA per inch fouach subsequent insertion. ~ Legal Advertising Representative, King County Journal ~Ubscrib d and 'z;.::: 3rd day ofDecember, 2004. ",1111,\111""1/'1/1. ~,\ ~EAGL. "/~ '" .... " ~ ••••••••• '7L-o. J" .... , ........ "-.' '. ,~ ~ . ~ O~-•• ·~.,,\on E'~,o·.· •• ~r ~ .:::-J...:. ,'t$" "6'.. ~ Tom A. Meagher 2 !l Q\ f:.,RY II' 0, ~ Notary Public for the State of Washington, Residing in Redmond, WashingtorE i ~ _e-: Z § Ad Number:847512 P.O. Number: ~ <P \ PU6\.\~ i f2 ~ Cost of publishing this notice includes an affidavit surcharge. ~ ~o"" ~ ~\)~~"~0 ~ ~ T ... 0. 'IV 2 ••• '" ~ ~ 'IS' •••••.•..• ~' ~ "'///11 0 F W flo. '0 \\\~ ..... 111/1/ 1111111 \ \\\\ NOTICE OF ENVIRONMENTAL DETERMINATION ENVIRONMENTAL REVIEW COMMITTEE RENTON, WASHINGTON The Environmental Review Committee has issued a Determination of Non-Significance for the following project under the authority of the Renton Municipal Code. 2005 Update to the City of Renton Water System Plan LUA04-122, ECF Location: City-wide. The Water Utility Division of the City of Renton is updating the Water System Plan adopted in 1998 and approved in 1999, and complies with WAC 246-290. The plan covers the following: existing drinking water system, land use in the water service and study area, projected. water demands, and sources, long range water supply plan, policies and criteria, planned system improvements, operation and maintenance of the system, service area and intertie agreements, Water Conservation Program, and Drinking Water Quality Monitoring Plan. Appeals of the environmental determination must be filed in writ- ing on or before 5:00 PM on November 29, 2004. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-110.B. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425) 430-6510 . Published in the King County Journal November 15,2004. #847512 ~ Date: To: From: CITY OF RENTON MEMORANDUM December 1 , 2004 John D. Wilson, Water Utility Engineering Susan A. Fiala, Development Services ~ Subject: 2005 Update to the City of Renton Water System Plan LUA04-122, ECF This is written on behalf of the Environmental Review Committee to inform you that the appeal period has ended for the Environmental Review Committee's (ERG) Determination of Non- Significance for the above-referenced project. No appeals were filed on the ERC determination. If you have any questions, please feel free to contact me at 430-7382. Kathy Keolker-Wheeler, Mayor November 18, 2004 Carla Carlson Fisheries Department Muckleshoot Indian Tribe 39015 -1720d Avenue SE Auburn, W A 98092-9763 ' .. . CITY <. ~"? RENTON . . . . . . PliinningIBuildingn>ublic Works Department Gregg Zimmerman P.E., Administrator . . DEVELOPMENT PLANNING CITY OF RENTON . NOV 2·2 2004 RECEUVED SUBJECT: DRAFT 2005 UPDATE TO CITY OF RENTON WATER SYSTEM PLAN Dear Ms. Carlson: Thank you for taking the time to review the Draft 2005 Update to the City of Renton Water System Plan. Regarding your comments concerning water conservation measures for commercial and industrial users: The City periodically conducts rates studies that examine, among other factors, water conservation impacts. In 2006, we will perform another study of the water rates for all customer classes, including commercial and industrial. The study will again examine base charges and commodity charges, including use of block rates. Regarding your comments concerning the Maplewood W~lIs: The Maplewood Wells will be returned to operation on completion of the water treatment improvements project, which is anticipated in November of 2005. At that time we will resume monitoring waterlevels in the Cedar River as well as ground water levels in accordance with the Department of Ecology permits issued for the. wells. Copies of the permits are included in Appendix C, Water Rights Documents, of the plan. During the operation of the wells from June 1999 to January 2000, our measu'rements did not indicate any impacts of the wells upon flows in the Cedar River. We provided the Department of Ecology with a report of water right compliance monitoring in April 2000. Because the well field was operated for a rdatively short time, we plan on continuing to collect data for approximately three years after the start-up ofthe new treatment plant before finalizing the permanent management plan of the well field with the Department of Ecology. We will provide you with a hard copy of the final version 6f2005Update to the City of Renton Water System Plan as per your request. If you have any questions, please feel free to call meat 425-430-7210 or e-mail agafour@ci.renton.wa.us. Sincerely, ~Wl6~~/ Abdoul Gafour Water Utility Engineering Supervisor cc: Dan Swenson, Department of Ecology Diane Robertson, R.W. Beck Lys Hornsby, J.D. Wilson, Susan Fiala, City of Renton H:\File Sys\WTR -Drinking Water Utility\WTR-09 -Plans\WTR-09-0020 -2005 Water System Plan\Letter to Muckles~ Nov-2004.DOC\JDW\tb R --~ --~ 1055 South Grady Way -Renton, Washington 98055 E N TON ~ AHEAD OF THE CURVE 'V This paper contains 50% recycled material. 30% post consumer MUCKLESHOOT INDIAN TRIBE Fisheries Department 39015 -172nd Avenue SE • Auburn, Washington 98092-9763 Phone: (253) 939-3311 • Fax: (253) 931-0752 November 1,2004 Susan A. Fiala, AICP . City of Renton Planning/Building/Public Works Department 1055 S. Grady Way Renton, Wa. 98055 RE: 2005 Update to City of Renton Water System Plan LUA04-122, ECF Dear Ms. Fiala , DEVELOPMENT PLANNIN CITY OF RENTON NOV 092004 RECEIVED Thank you for the opportunity to review the City of Renton's 2005 Update to the Water System Plan. The Tribe has several concerns with the Plan and DNS that we would like to address. We believe that the Water System Plan does not adequately address conservation measures for commercial and industrial users. Among the conservation measures the Plan should address are the potential implementation of an inverted rate structure for such uses. Detail on other conservation measures that may be applicable to Renton's commercial and industrial users appears to be lacking. We understand that the Maplewood Wells will be online sometime in 2005 pending completion of the treatment facility. The Maplewood Aquifer is in hydraulic continuity with the Cedar River. Well pumping will impact flows of the Cedar River. We are concerned that the DNS and the Water System Plan failed to discuss the impacts of withdrawals from the Maplewood wells on flows of the Cedar River.' Additionally, the priority date of the water rights for the wells are junior to WAC 173-508 which established minimum instream flows for the Cedar River at Renton. During the last 20 years, these minimum flows are often not met. The impacts of Maplewood well withdrawals on the Cedar River and measures to ensure the withdrawals are consistent with maintenance of the minimum instream flows should be addressed. Please advise us whether the city intends to address these impacts in the context of the Water System Plan and the DNS or in separate environmental or planning documents. We understand that the City may be developing an operation plan to address this issue to Ecology. If that is the case, please provide us information on the status of such a plan. Please provide a hard copy of the 2005 Update to City of Renton Water System Plan to my attention. SO~~(~ __ Carla Carlson Water Resources Analyst Cc: Dan Swenson, Department of Ecology STATE OF WASHINGTON Office of Archaeology and Historic Preservation 1063 S. Capitol Way, Suite 106 • Olympia, Washington 98501 (Mailing Address) PO Box 48343 • Olympia, Washington 98504-8343 "~G (360) 586-3065 Fax Number (360) 586-3067 DEVELOPMENT f~t'\1'4 October 29,2004 Ms. Susan Fiala, Senior Planner City of Renton 1055 S. Grady Way Renton, W A 98055 In future correspondence please refer to: Log: 102904-69-KI Property: City of Renton Water System Plan Update 2005 LUA04-l22 Dear Ms. Fiala: CITY OF REI .. ' ",1'4 NOV 03200at RECEiVED We have reviewed the materials forwarded to our office for the proposed project referenced above. Although this a planning project, future water installations, improvements, upgrades and other activities that would involve excavation have the potential to impact the many recorded archaeological resources in downtown Renton and outlying areas. We do recommend you conduct a professional archaeological surVey of those areas proposed for any excavation associated with future water projects, including maintenance and upgrades. We also recommend consultation with the concerned tribes cultural committees and staff regarding cultural resource issues. If federal funds or permits are involved in future projects, Section 106 of the National Historic Preservation Act, as amended, and its implementing regulations, 36CFR800, must be followed. We would appreciate receiving any correspondence or comments from concerned tribes or other parties concerning cultural resource issues that you receive as you consult under the requirements of 36CFR800.4(a)(4). These comments are based on the information available at the time of this review and on behalf of the State Historic Preservation Officer. Should additional information become available, our assessment may be revised. Thank you for the opportunity to comment on this project and we look forward to receiving the survey report. / / Stepheni Kramer Assistant State Archaeologist (360) 586-3083 StephenieK@cted.wa.gov cc: Laura Murphy Richard Brooks Cecile Hansen ADMINISTERED BY DEPARTMENT OF COMMUNITY, TRADE & ECONOMIC DEVELOPMENT ENVIRONMENTAL DETERMINATION ISSUANCE OF A DETERMINATION OF NON-SIGNIFICANCE (DNS) POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONME'NTAL ACTION PROJECT NAME: 2005 Update to the City of Renton Water System Plan PROJECT NUMBER: LUA04-122, ECF LOCATION: City-wide -Renton Drinking Water Service Area plus -transferred area- DESCRIPTION: The Water Utility Olvlslon of the City of Renton is updating the Water System Plan adopted In 1998 and approved In 1999. and complies with WAC-246-290. The plan covers the following: description of the existing drinking water system, land use in the water service and study area, projected water demands, water sources, wellhead protection, water rights, long range water supply plan, water quality plan, policies and criteria, system analysis, planned system Improvements, operation and maintenance of the system, financial management, service area and Intertie agreements, Cros..coonectlon Control Plan, Water Conservation Program, Drinking Water Quality MonitOring Plan and standard specificatJons. THE CITY OF RENTON ENVIRONMENTAL REVIEW COMMITTEE (ERC) HAS DETERMINED THAT THE PROPOSED ACTION DOES NOT HAVE A SIGNIFICANT ADVERSE IMPACT ON THE ENVIRONMENT, Appeals of the environmental detennlnatlon must be filed In wrltJng on or before 5:00 PM on November 29, 2004. Appeals must be filed In wrlflng together with the required $75.00 application fee with: Hearing Examiner, City of ,Renton, 1055 South Grady Way, Renton. WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-tr 11 O.B. Additional lnfonnatJon regarding the appeal process may be obtained from the Renton City Clerk's OffIce, (425) 431l-6510. IF THE ENVIRONMENTAL DETERMINATION IS APPEALED, A PUBLIC HEARING DATE WILL BE SET AND ALL PARTIES NOTIFIED. FOR FURTHER INFORMATION, PLEASE CONTACT THE CITY OF RENTON, DEVELOPMENT SERVICES DIVISION AT (425) 430-7200. DO NOT REMOVE THIS NOllCE WITHOUT PROPER AUTHORIZATION '~!~as.e I.~I~:~~ i>i'oj~t'i'I~MBER wlie,n, calling f~i' proper file Identification. CERTIFICATION I J -~""" ~ _---~ R. ALs..."\, I, Psh-~I4k:. 'i2o~U\ ~ , hereby certify that· copies of the j'<p",:~·~ssio.Ai~.~~I~bove document were posted by me in 2> conspicuous places on or nearby : ~ .... ~IOTA +~··.~fie described property on _.!.I.!..I"::"'-·..JIL.:S:;:;·L-:=..JiJ0!..:4~<,---___________ -=-~ :0 I" Ry~~~~ ~ ~~ I.'() -.-en' I :) a. .. 1 -~ :. AUBLIC .: ~ Signed: ~-----=---~ "t ~\ . .]~ ..... ~ !rTEST: Subscribed and sworn before me, a Notary Public, in and for the State ok. \~~ .... ? ~:~'<?, (}o _"Washington residing in Sa a.1tf e , on the 6l~ day of :Decem r 1\\ O;:-WAS\-\\~ _--\\"".~,.,,-.....:-- ENVIRONMENTAL DETERMINATION ISSUANCE OF A DETERMINATION OF NON-SIGNIFICANCE (PNS) ~ .. ~" POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION PROJECT NAME: 2005 Update to the City of Renton Water System Plan PROJECT NUMBER: LUA04-122, ECF LOCATION: City-wide -Renton Drinking Water Service Area plus "transferred area" DESCRIPTION: The Water Utility Division of the City of Renton is updating the Water System Plan adopted in 1998 and approved in 1999, and complies with WAC 246-290. The plan covers the following: description of the existing drinking water system, land use in the water service and study area, projected water demands, water sources, wellhead protection, water rights, long range water supply plan, water quality plan, policies and criteria, system analysis, planned system improvements, operation and maintenance of the system, financial management, service area and intertie agreements, Cross-Connection Control Plan, Water Conservation Program, Drinking Water Quality Monitoring Plan and standard specifications. THE CITY OF RENTON ENVIRONMENTAL REVIEW COMMITTEE (ERC) HAS DETERMINED THAT THE PROPOSED ACTION DOES NOT HAVE A SIGNIFICANT ADVERSE IMPACT ON THE ENVIRONMENT. Appeals of the environmental determination must be filed in writing on or before 5:00 PM on November 29, 2004. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-110.B. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425) 430-6510. IF THE ENVIRONMENTAL DETERMINATION IS APPEALED, A PUBLIC HEARING DATE WILL BE SET AND ALL PARTIES NOTIFIED. FOR FURTHER INFORMATION, PLEASE CONTACT THE CITY OF RENTON, DEVELOPMENT SERVICES DIVISION AT (425) 430-7200. DO NOT REMOVE THIS NOTICE WITHOUT PROPER AUTHORIZATION n. CITY OF RENTON CURRENT PLANNING DIVISION AFFIDAVIT OF SERVICE BY MAILING On the 10th day of November, 2004, I deposited in the mails of the United States, a sealed envelope containing ERC Determination documents. This information was sent to: John D. Wilson -City of Renton, Water Utility (Signalure of Sender): 74 ~ STATE OF WASHINGTON ) COUNTY OF KING ) ss ) Applicant/Contact "", .... ,"""",\, _4"' ~~ KAJt7 'III :-&v ............ c~ '" .: ~·.:;..\SS'ON ~.t" ~ " i' ~ :~~. ~ ... ~ '~ : ':0 ~OTAl?y ~(I'" ~ ::0 \n; ~ ~ : ~~~ : ~ .. ~ (Il.... PUB UC .... ~ 1 I certify that I know or have satisfactory evidence that Stacy Tucker '" ~;"" 6"29-0~1 •• ,:~o: signed this instrument and acknowledged it to be his/her/their free and v&~~~$a.c~f~_e-iJses and purposes mentioned in the instrument. IIII\\\\~~~,""",:~,"''' Dated :_---'II--I/'----"-M ___ It-"'O'+-¥- Notary (Print): ____ ---l.~.:..:.j~P.;;:..·,.R:.:..::!'-"'"'';'r.::"J KP;.::,.,:;;:lfV':,;;;!G.::,::;HE:;:.-r-.:.-F ..,---:-:-:-=:--_________ _ My appointment expires: i'A"( .~prGiNTMENT EXPi;iES £-29-07 2005 Update to the City of Renton Water System Plan LUA04-122, ECF CITY OF RENTON MEMORANDUM Date: November 10, 2004 To: John D. Wilson, Water Utility Engineering .~-: ..... _ ... '" ;' ,'-.... ~ From: Sus~n A. Fiala, Development Services ~ Subject: 2005 Update to the City of Renton Water System Plan LUA04-122, ECF This is written on behalf of the Environmental Review Committee (ERG) and is to inform you that they have completed their review of the environmental impacts of the above-referenced project. The Committee, on November 9, 2004, decided that your project will be issued a Determination of Non-Significance. ERC has determined that it does not have a probable significant adverse impact on the environment. An Environmental Impact Statement (EIS) is not required under RCW 43.21 C.030(2)(c). This decision was made by the ERC under the authority of Section 4-6-6, Renton Municipal Code, after review of a completed environmental checklist and other information, on file with the lead agency. This information is available to the public on request. Appeals of the environmental determination must be filed in writing on or before 5:00 PM November 29, 2004. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8- 110. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425)-430-6510. If the Environmental Determination is appealed, a public hearing date will be set and all parties notified. If you have any questions or desire clarification of the above, please call me at 430-7382. ERG Determination Memo 04·122.doc • '--:" 'p Agencies See Attached Additional Agencies See Attached (Signature of Sender):,. ~ ,: ~Y">~\SSION~ • .o~ ", ~ :---:W\.~~"~~""" ; ... o~ ... IOT '+";'" ~'~ : : (j I'" -4~ ....... "1'\ ' STATE OF WASHINGTON ) ~: J.-~: ~ :: : -._ m: ::: ) SS 'i. ~ ~ ,oua C : : COUNTY OF KING ) \;>'''>'\ .. 6'. LI .,/~ f " ~O· .. ?9-07."" ",0_-" 't::" ....... 6'-I certify that I know or have satisfactory evidence that Stacy Tucker "'1 WASH\~ ....... -- signed this instrument and acknowledged it to be his/her/their free and volun\'Mr-'8t'ti'or the uses and purposes mentioned in the instrument. Dated:_......;.II.....:../_Z-S---L,;.I_i)+Y_ ashington Notary (Print): _____ .."~Jn.".,,P.,""Rl""lYN=1 KA,.",..,..,M.,...,G~""lE,;;"f-F=_=_ __ ------------ My appointment expires: iV!'Ihr-'rUii'lINIt:NI EXPlt=(ES 6-29-07 2005 Update to the City of Renton Water System Plan LUA04-122, ECF template -affidavit of service by mailing Dept. of Ecology " Environmental Review Section PO Box 47703 Olympia, WA 98504-7703 WSDOT Northwest Region" Attn: Ramin Pazooki King Area Dev. Serv., MS-240 PO Box 330310 Seattle, WA 98133-9710 US Army Corp. of Engineers" Seattle District Office Attn: SEPA Reviewer PO Box C-3755 Seattle, WA 98124 Jamey Taylor" Depart. of Natural Resources PO Box 47015 Olympia, WA 98504-7015 KC Dev. & Environmental Servo Attn: SEPA Section 900 Oakesdale Ave. SW Renton, WA 98055-1219 Metro Transit Senior Environmental Planner Gary Kriedt AGENCY (DOE) LETTER MAILING (ERe DETERMINATIONS) WDFW -Stewart Reinbold" Muckleshoot Indian Tribe Fisheries Dept. c/o Department of Ecology " 3190 160th Ave SE Attn. SEP A Reviewer Bellevue, WA 98008 39015 -172nd Avenue SE Auburn, WA 98092 Duwamish Tribal Office" Muckleshoot Cultural Resources Program 4717 W Marginal Way SW " Seattle, WA 98106-1514 Attn: Ms Melissa Calvert 39015 172nd Avenue SE Auburn, WA 98092-9763 KC Wastewater Treatment Division" Office of Archaeology & Historic Environmental Planning Supervisor Preservation" Ms. Shirley Marroquin Attn: Stephanie Kramer 201 S. Jackson ST, MS KSC-NR-050 PO Box 48343 Seattle, WA 98104-3855 Olympia, WA 98504-8343 City of Newcastle City of Kent Attn: Mr. Micheal E. Nicholson Attn: Mr. Fred Satterstrom, AICP Director of Community Development Acting Community Dev. Director 13020 SE 72nd Place 220 Fourth Avenue South Newcastle, WA 98059 Kent, W A 98032-5895 Puget Sound Energy City of Tukwila Municipal Liason Manager Steve Lancaster, Responsible Official Joe Jainga 6300 Southcenter Blvd. 201 South Jackson Street KSC-TR-0431 PO Box 90868, MS: XRD-01W . Tukwila, WA 98188' Seattle, WA 98104-3856 Bellevue, WA 98009-0868 Seattle Public Utilities Real Estate Services Title Examiner 700 Fifth Avenue, Suite 4900 PO Box 34018 Seattle, WA 98124-4018 ----- Note: If the Notice of Application states that it is an "Optional DNS", the marked agencies and cities will need to be sent a copy of the checklist, PMT's, and the notice of application. " Also note, do not mail Jamey Taylor any of the notices she gets hers from the web. Only send her the ERC Determination paperwork. . template -affidavit of service by mailing ,. ~ .. " . .J. ' , King County Water District #90 15606 SE 128th Street Renton, WA 98059-4540 Skyway Water & Sewer District 11909 Renton Avenue S Seattle, WA 98178 City of Tukwila Attn: Dept. of Community Development 6300 Southcenter Blvd #100 Tukwila, WA 98188-2544 City of Kent Attn: Planning Department 220 4th Avenue S Kent, W A 98032 Maplewood Addition Water Cooperative c/o Kurt Muller 13020 SE 151 st Street Renton, WA 98059 Soos Creek Water & Sewer District 14616 SE 192nd Street PO Box 58039 Renton, WA 98058-1039 Coal Creek Utility District 6801 132nd Place SE Newcastle, WA 98059-3088 City of Tukwila Attn: Public Works Department 6300 Southcenter Blvd Tukwila, WA 98188-2544 Muckleshoot Indian Tribe Attn: Fisheries Department 39015 172nd Street Auburn, WA 98092 Cedar River Water & Sewer District 18300 SE Lake Youngs Road PO Box 1040 Maple Valley, WA 98038 City of Newcastle Attn: City Manager 13020 Newcastle Way Newcastle, WA 98059 City of Kent Attn: Public Works Department 220 4th Avenue S Kent, W A 98032 City of Seattle Seattle Public Utilities 700 5th Avenue #4900 PO Box 34018 Seattle, W A 98124-4018 Kathy KeoIker-Wheeler, Mayor November 10, 2004 Washington State Department of ECOlogy , Environmental' Review Section ,PO Box 47703 " , , ,Olympia, WA 98504~ 7703 CITY 'F RENTON PlanningIBuilditig/Public Works Department , Gregg Zimmerman P.E., Administrator , " Subject: Environmental Determinations ... .J.. Transmitted herewith is a copy of the Ehvironmental Determination for the foiiowing project reviewed by the Environmental Review Committee (ERC) on November 9,2004: ' , DETERMINATION OF NON-SIGNIFICANCE PROjECT NAME: PROJECT NUMBER: L.0CATIQN: DESCRIPTION: 2005 Update to the City of Renton Water System Plan LUA04-122,ECP:'>' " ' -City"wide-'::'Renton DrinkingW~terSeivite A'rea plus ''trarisferred area" nieWater Utility Division of the City'-of Renton is updating the Water, System Plan adopted 'in 1995'and approved,in'19~9:and complies with WAG 246-290, ,The plan cqvers the following: descriptionof,the e,xistlng drinking water system, land use,h, the water serVice arid studywe'C!,projected water qemands,water sources, wellheadprotectiqn,water rights, lonti nirige water supply plan, water quality plan;' policle~-a:n~(-criteria, sysleinanalysis, plarinedsystem -' illlprovements" , Qpera:tiqn -,and mainte,mince of' the system, '"finanCial," managemen(serVicErareaandintertie agreements, Cross-Connection Control Plan, Water C,onservatign Program,Orinking Water Quality Monitoring Plan and standard speCifi~atlons, ' " Appeals of the environmental determination must be filed iriwriting on or before 5:00 PM November 29, 2004. Appeals must Defiled in writing together wi,th, the req'uired $75;00applicat!ori fee with: Hearing Examiner, City. of Renton, 1055 South Gr~dyWay, Rehtbn,WA 98055. Appealsto the Examiner are governed by City bf' Renton' MuniCipal Code ," SeCtion 4-8~ 110. Additional information regarding the appeal 'process may be obtained from the Renton'City Clerk's Office,' (425)-430-6510, -If you have questions, please call me at (425) 430~ 7382 Susan A Fiala' Senior Planner , -cc: King County Wastewater Treatment Division WDFW, Stewart Reinbdld David F. Dietzman, Department of Natural Resources WSDOT, Northwest Region . Duwamish Tribal Office Rod Malcom,Fisheries, Muckleshoot Indian Tribe (Ordinance) Melissa Calvert, Muckleshoot Cultural Resources Program US Army Corp. of Engineers Stephanie Kramer, Office of Archaeology & Historic Preservation Enclosure ~ ------1-0-5-5 -So-'u-th-G-'-r-a-dy-W:-a-y---R-e-nt-on-;-W,-a-sh-i-ng'-to-n-98-0-5-5 ---,------R E N T ON * This paper contains 50% recycled material, 30% post consumer AHEAD OF THE CURVE CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE APPLICATION NUMBER: LUA04-122, ECF APPLICANT: City of Renton Water Utility -John D. Wilson PROJECT NAME: 2005 Update to the City of Renton Water System Plan DESCRIPTION OF PROPOSAL: The Water Utility Division of the City of Renton is updating the Water System Plan adopted in 1998 and approved in 1999, and complies with WAC 246-290. The plan covers the following: description of the existing drinking water system, land use in the water service and study area, projected water demands, water sources, wellhead protection, water rights, long range water supply plan, water quality plan, policies and criteria, system analysis, planned system improvements, operation and maintenance of the system, financial management, service area and intertie agreements, Cross-Connection Control Plan, Water Conservation Program, Drinking Water Quality Monitoring Plan and standard specifications. LOCATION OF PROPOSAL: LEAD AGENCY: City-wide -Renton Drinking Water Service Area plus "transfer area" City of Renton Department of Planning/Building/Public Works Development Planning Section This Determination of Non-Significance is issued under WAC 197-11-340. Because other agencies of jurisdiction may be involved, the lead agency will not act on this proposal for fourteen (14) days. Appeals of the environmental determination must be filed in writing on or before 5:00 PM November 29, 2004. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-110. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425)-430-6510. PUBLICATION DATE: DATE OF DECISION: SIGNATURES: Gregg Zim NOVEMBER 15, 2004 NOVEMBER 9, 2004 Departme ning/Building/Public Works Den~ Community Services Department Renton Fire Department DATE STAFF REPORT A. BACKGROUND City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL REVIEW COMMITTEE ERC MEETING DA TE: November 9, 2004 Project Name: 2005 Update to the City of Renton Water System Plan Project Number: LUA 04-122, ECF Applicant: City of Renton Water Utility -John D. Wilson Project Manager: Susan Fiala, AICP Project Description: The Water Utility Division of the City of Renton is updating the Water System Plan adopted in 1998 and approved in 1999, and complies with WAC 246-290. The plan covers the following: description of the existing drinking water system, land use in the water service and study area, projected water demands, water sources, wellhead protection, water rights, long range water supply plan, water quality plan, policies and criteria, system analysis, planned system improvements, operation and maintenance of the system, financial management, service area and intertie agreements, Cross- Connection Control Plan, Water Conservation Program, Drinking Water Quality Monitoring Plan and standard specifications. Water demands are projected to the year 2025. The plan is used as a general planning tool for improving, maintaining and operating the City of Renton's drinking water system for the next five years. The improvements will be included as part of the five year Capital Improvement Program (CIP). Reservoir sizing requirements use "saturation" conditions which are estimated to occur about 2040. The planning area for this plan is the existing water service area, covering approximately 16 square miles, plus the "transfer area" of the Skyway Coordinated Water System Plan. Service by the City beyond these areas is not currently contemplated. The Renton water service area has been defined in two coordinated water system plans. These plans are the East King County Coordinated Water System Plan (October 1989 and addendum, August 1996) and the Skyway Coordinated Water System Plan (November 1988 and update in 1999). The proposed plan update is a program-level planning document. Project level detail is not addressed. Project Location: Citywide -Renton Drinking Water Service Area plus "transfer area" Exist. Bldg. Area gsf: NA Site Area: Citywide ercrpl.doc City of Rentoll PIBIPW Department Em melltal Review Committee Staff Report 2005 UPDATE TO THE CITY OF RENTO/\ . TER SYSTEM PLAN LUA-04-122, ECF REPORT AND DECISION OF NOVEMBER 9, 2004 Page20f4 B. RECOMMENDATION Sased on analysis of probable impacts from the proposal, staff recommend that the Responsible Officials make the following Environmental Determination: DETERMINA TION OF NON-SIGNIFICANCE XX Issue DNS with 14 day Appeal Period. C. MITIGA TlON MEASURES No mitigation measures are recommended. Advisory Notes to Applicant: DETERMINA TlON OF NON -SIGNIFICANCE -MITIGA TED. Issue DNS-M with 14 day Appeal Period. Issue DNS-M with 15 day Comment Period followed by a 14 day Appeal Period. The following notes are supplemental information provided in conjunction with the environmental determination. Because these notes are provided as information only, they are not subject to the appeal process for environmental determinations Not applicable to non-project actions. D. ENVIRONMENTAL IMPACTS In compliance with RCW 43.21 C. 240, the following project environmental review addresses only those project impacts that are not adequately addressed under existing development standards and environmental regulations. 1. Earth Impacts: The topography of the water service planning area varies in elevation from 20 feet to 540 feet with slopes greater than 40 percent within the City's water service planning area. The predominate soils, according to the Soil Conservation Service, include Alderwood, Beausite-Alderwood, Everett and Oridia- Seattle-Woodinville Associations. Implementation of the Water System Plan may require import of fill for either structural fill or aesthetics. An example of a project which may require fill is the redevelopment of the Boeing Plant where new water mains would be needed. Fill and grading amounts would be estimated and discussed in separate SEPA review for each specific project as they are submitted. The majority of the projects included in the plan would be constructed in road corridors. The applicant indicates that to prevent erosion all construction projects would be supervised by the Utilities Division to ercrpt.doc City of Renton PIBIPW Department En!' 'mental Review Committee Staff Report 2005 UPDATE TO THE CITY OF RENTOA TER SYSTEM PLAN LUA-04-122, ECF REPORT AND DECISION OF NOVEMBER 9. 2004 Page30f4 assure compliance with erosion control requirements. Impacts to the earth, including but not limited to erosion control and sedimentation, would be reviewed during project-specific environmental review. This is a non-project action. Therefore, staff does not recommend any mitigation measures. Mitigation Measures: No further mitigation is recommended. Policy Nexus: N/A 2. Water -Surface and Groundwater Impacts: The Water System Plan does include some proposed improvements that would be constructed near water bodies, including wetlands, streams and shorelines. At project-level review, the appropriate permits and studies, including Shoreline Substantial Development permits and Wetland Delineation reports, would be required for review. The City of Renton is totally dependent on groundwater for its water supply. It is estimated that the current sources would meet demands for 20 years or longer. Renton has water rights for approximately 14,800 acre-feet per year; 10,600 gallons per minutes (gpm) and supplemental rights for 4,500 gpm. Additional supplemental rights for approximately 7,200 gpm are being pursued for Wells 10, 11, 12 and 17 in the Maplewood wellfield in order to increase the reliability of the City's water supply. The proposal improves the protection of the water supply for public consumption and is anticipated that would not result in adverse impacts to water resources. This is a non-project action. Therefore, staff does not recommend any mitigation measures. Mitigation Measures: No further mitigation is recommended. Policy Nexus: N/A 3. Environmental Health Impacts: The City both chlorinates and fluoridates its water supply. The operation of the treatment plant for the Maplewood wellfield uses both sodium hydroxide and sulfuric acid. The proposed corrosion control treatment facilities for the downtown wells and Springbrook Springs will use sodium hydroxide. As part of the City's safety program and to comply with OSHA regulations, procedures and controls are in place to prevent any exposure to potentially hazardous chemicals. This is a non-project action. Therefore, staff does not recommend any mitigation measures. Mitigation Measures: No further mitigation is recommended. Policy Nexus: N/A E. COMMENTS OF REVIEWING DEPARTMENTS The proposal has been circulated to City Departmental/Divisional Reviewers for their review. Where applicable, these comments have been incorporated into the text of this report as Mitigation Measures and/or Notes to Applicant. X Copies of all Review Comments are contained in the Official File. Copies of all Review Comments are attached to this report. ercrpt.doc City of Renton PIBIPW Department Em mental Review Committee Staff Report 2005 UPDATE TO THE CITY OF RENTOA . TER SYSTEM PLAN LUA-04-122, ECF REPORT AND DECISION OF NOVEMBER 9,2004 Page40f4 Environmental Determination Appeal Process: Appeals of the environmental determination must be filed in writing on or before 5:00 PM November 29, 2004. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-110. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425)-430-6510. ercrpLdoc Chapter 1 EXECUTIVE SUMMARY AND INTRODUCTION This chapter is an overview of the contents and organization of this water system plan update, the significant improvements that have been completed since the 1998 Plan, and the major recommended improvements identified in this Plan. The purpose of this Plan is to present a list of recommended facility improvements and policy criteria to be used to construct and maintain a potable municipal water supply system that is "adequate, safe and reliable." This plan is an update of the Water Plan adopted in 1998 and approved in 1999, and complies with WAC 246-290. It is based on current City policy and on regulations and laws adopted by federal and state government and the Renton City Council. 1.1 Planning for Growth The City's service area popUlation and land use trends are major factors affecting water system planning. The service area boundaries have been established through City policy, agreements with adjacent purveyors, and regional GMA planning. The City's service area boundaries will not change without annexation and any areas that are annexed by Renton will most likely continue to be supplied by the existing water supply systems in those annexed areas. The City continues to experience steady growth within its water system as shown on the figure below. During the past six years similar growth has occurred for residential and non-residential customers within Renton, with average annual increases between 2 and 3 percent. Metered Connections 16,000 15,000 14.000 13,000 12,000 11,000 [0'0 [00:> PJ<::> Rl.... PJ'l-PJ~ ft Rl<:> PJ'O & PJ'O PJO:> s:P ~.... ~'l-~~ .... 0) .... 0) .... q; .... q; .... C5 .... C5 .... q; .... C5 .... q; .... q; .... q; .... q; ",,<:5 fl fl fl The City has sufficient annual water rights to meet its projected 20-year (2025) annual water requirements. The sources of supply will also be marginally able to meet the projected 2025 peak day demands. The estimated existing and 20-year peak hour Renton_Ch I Executive Summary·Intro.doc 1017104 Chapter 1 demands exceed the City's instantaneous water rights. The City's storage is sufficient to supplement its sources of supply during existing and 2025 peak hour demand periods. However, additional storage or supply in the 196 Zone would help support the peak hour demands in the future. One exception to the City's ability to meet its average and peak day demands is if the highest level of redevelopment proposed in the Boeing Plant area were to occur. The City might have difficulty meeting demands within the next 20 years if additional conservation, (lower average per customer water use) does not occur. If conservation continues to bring average customer water use down, then this high level of redevelopment would not present a challenge to meeting demands until some time between 2025 and buildout. This high level of growth is one of several alternatives for redevelopment in the Boeing area. In the unlikely event that this level of growth was to occur, the City has several options for meeting future demands, which is discussed in Chapter 7 of this Plan. The City does not anticipate applying for any new water rights or changes to its existing water rights. In 1997 the City had applied for a change of place for several of its water rights, but since then it has withdrawn those applications. The City's forecasted water rights are the same as its existing water rights. The City does however plan to pursue new interties with adjacent water purveyors. Currently the City is pursuing an intertie with Skyway Water and Sewer District. If it is accepted it would be installed within the next six years. 1.2 Existing System Renton faces significant challenges operating and maintaining its water system. It must protect susceptible sources of supply from contamination, while maintaining a cost effective, independent supply. It must maintain facilities that provide adequate service to its customers while meeting the City's service criteria and policies, as well as state and federal regulations. Renton's water system is expensive to operate and maintenance intensive since pumping is required to move water anywhere in the system. Despite these challenges, the existing water system is very well maintained and provides a high level of service. However, some system deficiencies do exist, such as storage and booster pump station capacity. Existing deficiencies will be resolved through the water system's capital improvement program (CIP) and through a phased construction schedule. Additional emergency power capabilities at its existing booster pump stations will be considered where applicable. In addition to storage and pump station improvements, additional system redundancy and water quality is being addressed through the Maplewood Treatment Plant. The Maplewood Water Treatment Improvements project is scheduled to be completed in June 2005. The project addresses several water quality issues with the Maplewood well field that had limited its use. All of the City's facilities are replaced or upgraded as needed to comply with regulatory changes or as components wear out. Renton's ongoing pipe replacement 1-2 Renton_Ch 1 Executive Summary·lntro.doc 10/7/04 EXECUTIVE SUMMARY AND INTRODUCTION program targets replacement of aging steel and asbestos cement, as well as undersized water mains. 1.3 Future System The City plans on using a combination of conservation and storage to meet peak demands in the future. The conservation program will eventually need to include a rate structure that provides more incentives for conservation during the summer months. As part of its CIP the City is planning to build several new storage facilities and upgrade some of its existing storage facilities to provide additional storage. Planned storage in the 565, 196,435, and 320 zones will be phased during the next 20 years. It is recommended that the City maintain its existing interties and emergency supply agreements with other utilities, and pursue new interties. Renton will continue to supply all customers located within its service area boundaries and will control and administer all municipal services within the service area. 1.4 Improvements The City will prepare for and authorize a CIP program to perform the work listed in the Capital Improvement Plan. The major improvements anticipated within the next 20 years include: • Additional emergency power capacity • Additional booster station capacity • Additional storage capacity Additional unspecified improvements include: replacement of worn facilities, studies to assure future water supply, studies to anticipate treatment requirements, studies to minimize operating costs, and construction of water mains to serve new customers and to provide adequate fire protection to existing customers. The required capital improvements and stricter regulatory standards will require Renton to raise its water rates. Renton's water quality and water supply are influenced by the Cedar River. The management of the river is being supervised by the Cedar River Basin Council. Renton will continue to participate in the basin management program. The character of development in the City is changing, and with it the available funding mechanisms for water system improvements. The City is now beginning to redevelop areas that have previously had other land uses. This opens the door for low-interest public loans. The loan program is currently being used to its maximum potential by the City to minimize the need for rate increases. Renton_ChI Executive Summary·lntro.doc 10/7/04 R. w. Beck 1-3 Chapter 1 1.5 How to Use This Plan Chapter 2, Water System Description, provides a general overview of the City's water service area, briefly describing the service area characteristics, zoning, land use, neighboring jurisdictions, related plans, service area agreements, and general service policies. Chapter 3, Existing System, is a detailed description of the physical facilities of the system. It includes historical information on various facilities including references to project and contract file numbers. It also describes the capacity information for wells, storage facilities, booster pump stations, and interties. The pressure reducing valve (PRV) stations are listed with information on pressure zones served and valve sizes. The pipe inventory is provided with length of pipe in terms of size, material, age, and pressure zone. System maps and the system hydraulic profile are located in Appendix F. Chapter 4, Planning Data and Water Demand Forecasts, includes population and demographic trends, historical and existing water use, water demand forecasts, equivalent residential units, and the impacts of redevelopment of the Boeing Plant properties on demands. Chapter 5, Conservation Program, describes the conservation program requirements, reported data, the elements of the City'S conservation program, conservation activities selected for implementation, funding for the conservation program, and target water- saving projections. Chapter 6, Policies, Criteria and Standards, covers the City'S policies and criteria for supply, service, finance, facilities, and organization. The chapter also describes the City's project review procedures, policies, and requirements for outside parties (e.g., developers) and construction certification and follow-up procedures. The applicable City municipal code is in Appendix D. The City'S standard specifications and details are in Appendix O. Chapter 7, Water Supply, Water Rights and Water Quality, addresses the City'S water resources, condition, and capacity; the City's water rights, interties, the water quality plan, water treatment, state and federal regulatory requirements; a summary of the wellhead protection program, system reliability, long-range water supply planning, and recommended water supply improvements. Copies of the City's water rights documents are contained in Appendix C. The Drinking Water Quality Monitoring Program is in Appendix L. The Wellhead Protection Plan is in Appendix Q. Chapter 8, Water System Analysis, evaluates the present and future adequacy of the system including storage, distribution, and transmission with regard to average day, peak day, peak hour, and fire flow demands. Chapter 9, Operations and Maintenance, describes the management of the water utility, operator certification, system operation and control, comprehensive monitoring, a summary of the emergency response program, safety procedures, customer complaint response program, record keeping and reporting, and O&M improvements. The Cross Connection Control Plan is contained in Appendix G. 1-4 Renton_Chi Executive Summary·lntra.doc 10/7/04 EXECUTIVE SUMMARY AND INTRODUCTION Chapter 10, Capital Improvement Program, provides a summary of the six-year capital improvement program; planned future capital projects (beyond the six-year CIP planning cycle), and cost estimating methodology. Chapter 11, Financial Program, is a description of the water utility's financial condition and contains a projection of financial results through 2015. It contains historical financial performance, available funding sources, and the water utility financial plan including projected water rates. Renton_Chi Executive Summary-Intro.doc 10/7/04 R. W. Beck 1-5 I z~ '---i' 1 ----, \ .ar r_~_, '------, i ,--_________ 1 ( \ City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: COMMENTS DUE: NOVEMBER 1, 2004 APPLICATION NO: LUA04-122, ECF APPLICANT: Cit of Renton PROJECT TITLE: 2005 U date to Water S stem Plan SITE AREA: N/A BUILDING AREA ross: N/A LOCATION: Citywide I WORK ORDER NO: 77325 SUMMARY OF PROPOSAL: The Water Utility Division is updating the City of Renton Water System Plan. The plan covers all aspects of the City's domestic water supply including, but not limited to: water supply, water demand, cross-connection, water agreements and water quality standards. Water demands are projected to 2025. The plan is a planning tool for improving, maintaining and operating the drinking water system._ .".. ,.,,-.-..:,' A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Environment Minor Major Information Impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare Plants Recreation Land/Shoreline Use Utilities Animals Trans/JOrtation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. CODE-RELATED COMMENTS We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where additional information is needed to properly assess this proposal. ~~ ~\\_~_'C~y ____ _ Signature of Director or Authorized Representative Date City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: PtM ~e..v·I~ APPLICATION NO: LUA04-122, ECF APPLICANT: City of Renton PROJECT TITLE: 2005 Update to Water System Plan SITE AREA: NJA COMMENTS DUE: NOVEMBER 1, 2004 DATE CIRCULATED: OCTOBER 18,2004 PROJECT MANAGER: Susan Fiala PLAN REVIEW: Mike Dotson Bl.)lLDING AREA (gross): N/A '0 ~-~. . -: .. _.. 0 \ <: LOCATION: Cilywide WORK ORDER NO: 77325 ;Y_, . SUMMARY OF PROPOSAL: The Water Utility Division is updating the City of Renton Water System Plan. The PII&:cov~rs all aspects of the City's domestic water supply including, but not limited to: water supply, water demand, cross-connection, water agreements and water quality standards. Water demands are projected to 2025. The plan is a planning tool for improving, maintaining and operating the drinking water system. -'.' .. 0,,'- A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Environment Minor Major Information Impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services Energyl HistoridCultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. CODE-RELATED COMMENTS We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where addition . 0 ation is needed to properly assess this proposal. City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: Fire-COMMENTS DUE: ~OVFI\II~~~ rh 4P~'l! re ~ APPLICATION NO: LUA04-122, ECF DATE CIRCULATED: )C'rb~~. ~U \!J LS APPLICANT: City of Renton PROJECT MANAGER: \~ ~ n Fiala PROJECT TITLE: 2005 UJldate to Water System Plan PLAN REVIEW: Mike [ 'b s\>~ OCT ~ 8 lUULt-t..::,..I SITE AREA: N/A BUILDING AREAJgros : N/A CITY 01-t\t~~ '':': LOCATION: Citywide WORK ORDER NO: 77 ~25 FIRE OEPARTf-,lENT SUMMARY OF PROPOSAL: The Water Utility Division is updating the City of Renton Water System Plan. The plan covers all aspects of the City's domestic water supply including, but not limited to: water supply, water demand;cross-connection, water agreements and water quality standards. Water demands are projected to 2025. The plan is a planning tool for improving, maintaining and operating the .drinking water system.. .. . ..... ; ..... ,..;c. •. -:.' A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Environment Minor Major Information Impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services Energy! Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. We have reviewed this pplication with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where additiona mformation is ne d to properly assess this proposal. Signature of Date f City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: y rTI...nsrxx ~f\ 'C}(\ COMMENTS DUE: NOVEMBER 1, 2004 r • APPLICATION NO: LUA04-122, ECF , DATE CIRCULATED: OCTOBER 18,2004 1 L (; L! \: l. ~ APPLICANT: City of Renton PROJECT MANAGER: Susan Fiala PROJECT TITLE: 2005 Update to Water System Plan PLAN REVIEW: Mike Dotson SITE AREA: N/A BLJILDING AREA (gross): N/A L::JILUINli LJIVISIO:: LOCATION: Citywide I WORK ORDER NO: 77325 SUMMARY OF PROPOSAL: The Water Utility Division is updating the City of Renton Water System Plan. The plan covers all aspects of the City's domestic water supply including, but not limited to: water supply, water demand, cross-connection, water agreements and water quality standards. Water demands are projected to 2025. The plan is a planning tool for improving, maintaining and operating the drinking water system. . . A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Environment Minor Major Information Impacts Impacts Necessary Impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ HistoridCultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet 8. POLICY-RELATED COMMENTS C. CODE-RELA TED COMMENTS We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where additional . tion is needed to properly assess this proposal. Date City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: 5lJ.Y.fe.ce/ W~~1er COMMENTS DUE: NOVEMBER.1, 2004 • APPLICATION NO: LUA04-122, ECF DATE CIRCULATED: OCTOBER 18, 2004 APPLICANT: City of Renton PROJECT MANAGER: Susan Fiala {i L t'L t ," PROJECT TITLE: 2005 Update to Water System Plan PLAN REVIEW: Mike Dotson .. 1:::::,. OCT ~ _ * - SITE AREA:. N/A BUILDING AREA (gross): N/A 1'"\, •. LOCATION: Citywide I WORK ORDER NO: 77325 "--"LOIN G DIVIS/:;_, SUMMARY OF PROPOSAL: The Water Utility Division is updating the City of Renton Water System Plan. The plan covers all aspects of the City's domestic water supply including, but not limited to: water supply, water demand, cross-connection, water agreements and water quality standards. Water demands are projected to 2025. The plan is a planning tool for improving, maintaining " and operating the drinking water system. .-: .' -'. .. ,._.,::_~::>-:.~ . . A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Environment Minor Major Information Impacts Impacts Necessary Earth Housinq Air Aesthetics Water LiqhtlGlare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. CODE-RELA TED COMMENTS We have reviewed thi application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where add' . nal formation is needed to properly assess this proposal. Date . City of Rerl"Jn Department of Planning / Building / Public 11\1"" .~s ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: flWllS COMMENTS DUE: NOVEMBER 1, 2004 APPLICATION NO: LUA04-122, ECF DATE CIRCULATED: OCTOBER 18,2004 APPLICANT: City of Renton PROJECT MANAGER: Susan Fiala PROJECT TITLE: 2005 Update to Water System Plan PLAN REVIEW: Mike Dotson SITE AREA: N/A BUILDING AREA (gross): N/A LOCATION: Citywide WORK ORDER NO: 77325 SUMMARY OF PROPOSAL: The Water Utility Division is updating the City of Renton Water System Plan. The plan covers all aspects of the City's domestic water supply including, but not limited to: water supply, water demand, cross-connection, water agreements and water quality standards. Water demands are projected to 2025. The plan is a planning tool for improving, maintaining and operating the drinking water system. . A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Environment Minor Major Information Impacts Impacts Necessary Impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELA TED COMMENTS ~ ~ ;U)~r:u:/S ~ ;fh;t&, We have reviewed this application areas wh e additional informati ith particular attention to those areas in which we have expertise and have identified areas of probable impact or oeeded to P"""rl1 '''~, ml, P"'I""'/' I ¢tR/tlI Dat City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: &ns-\-ruGhe:t""\ COMMENTS DUE: NOVEMBER 1, 2004 APPLICATION NO: LUA04-122, ECF DATE CIRCULATED: OCTOBER 18, 2004 APPLICANT: City of Renton PROJECT MANAGER: Susan Fiala f; tr\.rit;~·: r PROJECT TITLE: 2005 Update to Water System Plan PLAN REVIEW: Mike Dotson SITE AREA: N/A BUILDING AREA (gross): N/A LOCATION: Citywide I WORK ORDER NO: 77325 BUILDING DIVISIOI\I SUMMARY OF PROPOSAL: The Water Utility Division is updating the City of Renton Water System Plan. The plan covers all aspects of the City's domestic water supply including, but not limited to: water supply, water demand, cross-connection, water agreements and water quality standards. Water demands are projected to 2025. The plan is a planning tool for improving, maintaining and operating the drinking water system. " A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Environment Minor Major Information Impacts Impacts Necessary Impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare Plants Recreation LandlShoreline Use Utilities Animals Transportation Environmental Health Public Services Energyl Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. CODE-RELATED COMMENTS We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas wh re additional information is needed to properly assess this proposal. ive Agencies See Attached Additional Agencies See Atttached (Signature of Sender)I:: 6~~~~=--:~g~~~~=--_____ ~~~~,;;\\, ';'" II If ........... f" •• :i.,SSION !i.... " •• '~"",,' '.f-,-o'" I, : 0 .. \QTA£,> ~'. ~ : () \" 'T Y rn ~ ~ : CIita..... en: ~ I. : ,.., '" Ii (J)'. ""USLIC : : SS STATE OF WASHINGTON COUNTY OF KING I.;..J.' .~ ... I certify that I know or have satisfactory evidence that Stacy Tucker "" -Y~···· .. 6"29_01 .... ~o j signed this instrument and acknowledged it to be his/her/their free and vof.;SteW·aet~~~ses and purposes mentioned in the instrument. II"I\\~~~"",~~ shington Notary (print):-----'=·~~:'-':~~~~~~;.:'·_r~.;~m·I~~::ri"l~·~~rf"!/~"t.:~;;,:~~;~,-,."..,~ (;",.. ... "';-::-.;j-~Jf"j------------­My appointment expires: 2005 Update to the City of Renton Water System Plan LUA04-122, ECF template -affidavit of service by mailing Dept. of Ecology • Environmental Review Section PO Box 47703 Olympia, WA 98504-7703 WSDOT Northwest Region • Attn: Ramin Pazooki King Area Dev. Serv., MS-240 PO Box 330310 Seattle, WA 98133-9710 US Army Corp. of Engineers * Seattle District Office Attn: SEPA Reviewer PO Box C-3755 Seattle, WA 98124 Jamey Taylor * Depart. of Natural Resources PO Box 47015 Olympia, WA 98504-7015 KC Dev. & Environmental Servo Attn: SEPA Section 900 Oakesdale Ave. SW Renton, WA 98055-1219 Metro Transit Senior Environmental Planner Gary Kriedt AGENCY (DOE) LETTER MAILING (ERe DETERMINATIONS) WDFW -Stewart Reinbold· Muckleshoot Indian Tribe Fisheries Dept. clo Department of Ecology . 3190 160th Ave SE Attn. SEPA Reviewer Bellevue, WA 98008 39015 _172nd Avenue SE Auburn, WA 98092 Duwamish Tribal Office· Muckleshoot Cultural Resources Program 4717 W Marginal Way SW . Seattle, WA 98106-1514 Attn: Ms Melissa Calvert 39015 172nd Avenue SE Auburn, WA 98092-9763 KC Wastewater Treatment Division * Office of Archaeology & Historic Environmental Planning Supervisor Preservation* Ms. Shirley Marroquin Attn: Stephanie Kramer 201 S. Jackson ST, MS KSC-NR-050 PO Box 48343 Seattle, WA 98104-3855 Olympia, WA 98504-8343 City of Newcastle City of Kent Attn: Mr. Micheal E. Nicholson Attn: Mr. Fred Satterstrom, AICP Director of Community Development Acting Community Dev. Director 13020 SE 72nd Place ,220 Fourth Avenue South Newcastle, WA 98059 :Kent; WA 98032-5895 Puget Sound Energy City of Tukwila Municipal Liason Manager Steve L!'Incaster, Responsible Official Joe Jainga 6300 SOl.ithcenter Blvd: 201 South Jackson Street KSC-TR-0431 PO Box 90868, MS: XRD-01W Tukwila,WA 98188· Seattle, WA 98104-3856 Bellevue, WA 98009-0868 Seattle Public Utilities Real Estate Services Title Examiner 700 Fifth Avenue, Suite 4900 PO Box 34018 Seattle, WA 98124-4018 -------------- Note: If the Notice of Application states that it is an "Optional DNS", the marked agencies and cities will need to be sent a copy of the checklist, PMT's, and the notice of application. * Also note, do not mail Jamey Taylor any of the notices she gets hers from the web. Only send her the ERC Determination paperwork. , ~ ~. te~ate -affidavit of service by mailing I King County Water District #90 15606 SE 128th Street Renton, WA 98059-4540 Skyway Water & Sewer District 11909 Renton Avenue S Seattle, WA 98178 City of Tukwila Attn: Dept. of Community Development 6300 Southcenter Blvd #100 Tukwila, WA 98188-2544 City of Kent Attn: Planning Department 220 4th Avenue S Kent, WA 98032 Maplewood Addition Water Cooperative c/o Kurt Muller 13020 SE 151 5t Street Renton, WA 98059 Soos Creek Water & Sewer District 14616 SE 192"d Street PO Box 58039 Renton, WA 98058-1039 Coal Creek Utility District 6801 132"d Place SE Newcastle, WA 98059-3088 City of Tukwila Attn: Public Works Department 6300 South center Blvd Tukwila, WA 98188-2544 Muckleshoot Indian Tribe Attn: Fisheries Department 39015 172"d Street Auburn, WA 98092 Cedar River Water & Sewer District 18300 SE Lake Youngs Road PO Box 1040 Maple Valley, W A 98038 City of Newcastle Attn: City Manager 13020 Newcastle Way Newcastle, WA 98059 City of Kent Attn: Public Works Department 220 4th Avenue S Kent, W A 98032 City of Seattle Seattle Public Utilities 700 5th Avenue #4900 PO Box 34018 Seattle, W A 98124-4018 • NOTICE OF APPLICATION AND PROPOSED DETERMINATION OF NON-SIGNIFICANCE (DNS) DATE: October 18, 2004 LAND USE NUMBER: LUA 04-122, ECF PROJECT NAME: 2005 Update to the City of Renton Water System Plan • PROJECT DESCRIPTION: The Water Utility DIvision is updating the City of Aenton Water System Plan. The plan covers all aspects of the City's domestlc water supply including. but not limited to: water supply, water demand, cross-connection, water agreements and water quality standards. Water demands are projected to 2025. The plan is a planning tool for improving, maintaIning and operating the drinking water system. PROJECT LOCATION: City-Wide OPTIONAL DETERMINATION OF NON·SIGNIFICANCE (DNS): As the Lead Agency, the City of Renton has determined that significant environmental impacts are unlikely to result from the proposed project. Therefore, as permitted under the RCW 43.21C.l10, the City of Renton is using the Optional DNS process to give notice that a DNS is likely to be issued. Comment periods for the project and the proposed DNS are integrated into a single comment period. There will be no comment period following the issuance of the Threshold Determination of Non-SIgnificance (DNS). A 14-day appeal period wiIJ follow the issuance of the DNS. DATE OF APPLICATION: October 8, 2004 NOTICE OF COMPLETE APPLICATION: October 18, 2004 APPLICANTIPROJECT CONTACT PERSON: City 01 Renton, Water Utility -John D. WilBon; Tel: (425) 430-7295, Email: JwllsonOcl.renton.wa.us Permltsl Review Requested: Location where application may be revIewed: Environmental (SEPA) Review Planning/Building/Public Works Department, Development Services Division. Sixth Floor Renton City Hall, 1055 South Grady Way, Renton, WA 96055 Comments on the above application must be submitted in writing to Susan Fiala Senior Planner Development Services Division 1055 South Grady Way Renton WA 98055 by 5:00 PM on November 1 2004. If you have questions about this proposal, or wish to be made a party of record and'receive additional notification by mail, contact the Project Manager. Anyone who submits written comments will automatically become a party of record and will be notified of any decision on this project. CONTACT PERSON: Susan Fiala, Senior Planner; Tel: (425) 430-7382 PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION If you would like to be made a party of record to receive further information on this proposed project, complete this form and relum to: Ci1y of Renton, Development Planning, 1055 So. Grady Way, Renlon, WA 98055. File NoJName: LUA04-122, ECF 12005 Update to the City of Renton Water System Plan NAME: ________________________________________________ _ MAILING ADDRESS: _____________________________________ _ TELEPHONE NO.: _________ _ .. , ...... "'\\\\\ . .:-~~\-: ~ .. ~4t~I •• , :-~_ •• ~.~SSIOtV~ ••• ~'" ". • ~ '+.0' \~ I, CERTIFICATION f /8 ~OTA-9~ ~\ -1\ ~ ~ ! ~..... CIJ: ~ ~ ~ \ '<>UBLIC .: ! I, "Y..>,'" ~ .... ~: " ~ "!-"~-07 •• ' 0.: I, ?:;}v,'& I?'..,dM~ , hereby certify that ~ co~~~:~~\~(;.~_-- above document were posted by me in ~ conspicuous places on ~ii~'''''''''''''' the describ~ prope~ on l D I ~-D'I-2 ~7/}9uL~~# Signe - A TIE';; ~~cribed ~sw~e me, a Notary P~~Iif' 10 an or tli ~te of ~ Washington residin~ , on the 2c::rT?: d of -.LLO (/ -r' MARILYN KAMCHEFF tit AWOINlMOO EXPIRES 8-~ NOTICE OF APPLICATION AND PROPOSED DETERMINATION OF NON-SIGNIFICANCE (DNS) DATE: October 18, 2004 LAND USE NUMBER: LUA 04-122, ECF PROJECT NAME: 2005 Update to the City of Renton Water System Plan PROJECT DESCRIPTION: The Water Utility Division is updating the City of Renton Water System Plan. The plan covers all aspects of the City's domestic water supply including, but not limited to: water supply, water demand, cross-connection, water agreements and water quality standards. Water demands are projected to 2025. The plan is a planning tool for improving, maintaining and operating the drinking water system. PROJECT LOCATION: City-Wide OPTIONAL DETERMINATION OF NON-SIGNIFICANCE (DNS): As the Lead Agency, the City of Renton has determined that significant environmental impacts are unlikely to result from the proposed project. Therefore, as permitted under the RCW 43.21 C.11 0, the City of Renton is using the Optional DNS process to give notice that a DNS is likely to be issued. Comment periods for the project and the proposed DNS are integrated into a single comment period. There will be no comment period following the issuance of the Threshold Determination of Non-Significance (DNS). A 14-day appeal period will follow the issuance of the DNS. DATE OF APPLICATION: October 8, 2004 NOTICE OF COMPLETE APPLICATION: October 18, 2004 APPLICANT/PROJECT CONTACT PERSON: City of Renton, Water Utility -John D. Wilson; Tel: (425) 430-7295, Email: jwilson@cl.renton.wa.us Permits! Review Requested: Location where application may be reviewed: Environmental (SEPA) Review Planning/Building/Public Works Department, Development Services Division, Sixth Floor Renton City Hall, 1055 South Grady Way, Renton, WA 98055 Comments on the above application must be submitted in writing to Susan Fiala. Senior Planner. Development Services Division. 1055 South Grady Way. Renton. WA 98055. by 5:00 PM on November 1, 2004. If you have questions about this proposal, or wish to be made a party of record and'receive additional notification by mail, contact the Project Manager. Anyone who submits written comments will automatically become a party of record and will be notified of any decision on this project. CONTACT PERSON: Susan Fiala, Senior Planner; Tel: (425) 430-7382 I PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION I If you would like to be made a party of record to receive further information on this proposed project, complete this form and return to: City of Renton, Development Planning, 1055 So. Grady Way, Renton, WA 98055. File NoJName: LUA04-122, ECF / 2005 Update to the City of Renton Water System Plan NAME: MAILING ADDRESS: _______________________ _ TELEPHONE NO.: ________ _ Date: To: From: CITY OF RENTON MEMORANDUM October 18, 2004 John D. Wilson, Water Utility Engineering Susan A. Fiala, Development services~ Subject: 2005 Update to the City of Renton Water System Plan LUA04-122, ECF The Development Planning Section of the City of Renton has determined that the subject application is complete according to submittal requirements and, therefore, is accepted for review. It is tentatively scheduled for consideration by the Environmental Review Committee on November 9, 2004. Prior to that review, you will be notified if any additional information is required to continue processing your application. Please contact me, at 430-7382 if you have any questions. " ;' " .\ ...................................................... ~ .......... ... UEVEI. City of Renton CIf:MEN/p OFA~M~NIN( OCT .. 8 2004 RECEIVED LAND USE PERMIT MASTER APPLICATION PROPERTY OWNER(S) PROJECT INFORMATION NAME: City of Renton PROJECT OR DEVELOPMENT NAME: 2005 Update to the City of Renton Water System Plan ADDRESS: 1055 Grady Way PROJECT/ADDRESS(S)/LOCATION AND ZIP CODE: City of Renton Drinking Water Service Area CITY: Renton ZIP: WA TELEPHONE NUMBER: 425-430-7210 KING COUNTY ASSESSOR'S ACCOUNT NUMBER(S): N/A APPLICANT (if other than owner) NAME: EXISTING LAND USE(S): See City of Renton Comprehensive Plan COMPANY (if applicable): PROPOSED LAND USE(S): See City of Renton Comprehensive Plan ADDRESS: EXISTING COMPREHENSIVE PLAN MAP DESIGNATION: See City of Renton Comprehensive Plan CITY: ZIP: PROPOSED COMPREHENSIVE PLAN MAP DESIGNATION (if applicable): N/A TELEPHONE NUMBER EXISTING ZONING: All CONTACT PERSON PROPOSED ZONING (if applicable): All NAME: John D. Wilson, P.E. SITE AREA (in square feet): N/A COMPANY (if applicable): City of Renton, Water Utility Engineering Section SQUARE FOOTAGE OF ROADWAYS TO BE DEDICATED FOR SUBDIVISIONS OR PRIVATE STREETS SERVING THREE LOTS OR MORE (if applicable): N/A ADDRESS: 1055 S. Grady Way PROPOSED RESIDENTIAL DENSITY IN UNITS PER NET CITY: Renton ZIP: 98055 ACRE (if applicable): N/A NUMBER OF PROPOSED LOTS (if applicable): N/A TELEPHONE NUMBER AND E-MAIL ADDRESS: 425-430-7295; jwilson@ci.renton.wa.us NUMBER OF NEW DWELLING UNITS (if applicable): N/A Q:web/pw/devserv/forms/planning/masterapp.doc 10/08/04 PRQ",';:CT INFORMATION (continu,-J) .-____ L-________ ~ ______________________ _. NUMBER OF EXISTING DWELLING UNITS (if applicable): PROJECT VALUE: N/A . N/A SQUARE FOOTAGE OF PROPOSED RESIDENTIAL BUILDINGS (if applicable): N/A IS THE SITE LOCATED IN ANY TYPE OF ENVIRONMENTALLY CRITICAL AREA, PLEASE INCLUDE SQUARE FOOTAGE (if applicable): N/A SQUARE FOOTAGE OF EXISTING RESIDENTIAL BUILDINGS TO REMAIN (if applicable): N/A 0 AQUIFER PROTECTION AREA ONE SQUARE FOOTAGE OF PROPOSED NON-RESIDENTIAL 0 AQUIFER PROTECTION AREA TWO BUILDINGS (if applicable): N/A 0 FLOOD HAZARD AREA sq. ft. SQUARE FOOTAGE OF EXISTING NON-RESIDENTIAL BUILDINGS TO REMAIN (if applicable): N/A 0 GEOLOGIC HAZARD sq. ft. NET FLOOR AREA OF NON-RESIDENTIAL BUILDINGS (if 0 HABITAT CONSERVATION sq. ft. applicable): N/A 0 SHORELINE STREAMS AND LAKES sq. ft. NUMBER OF EMPLOYEES TO BE EMPLOYED BY THE NEW PROJECT (if applicable): N/A 0 WETLANDS sq. ft. LEGAL DESCRIPTION OF PROPERTY (Attach legal description on separate sheet with the following information included) SITUATE IN THE QUARTER OF SECTION _, TOWNSHIP _, RANGE_, IN THE CITY OF RENTON, KING COUNTY, WASHINGTON. City of Renton Drinking Water Service Area TYPE OF APPLICATION & FEES List all land use applications being applied for: 1. SEPA -Environmental Review of Plan 3. 2. 4. Staff will calculate applicable fees and postage: $ AFFIDAVIT OF OWNERSHIP I, (Print Name/s) John D. Wilson , declare that I am (please check one) _ the current owner of the property involved in this application or ~ the authorized representative to act for a corporation (please attach proof of authorization) and that the foregoing statements and answers herein contained and the information herewith are in all respects true and correct to the best of my knowledge and belief. (Signature of Owner/Representative) Q:web/pw/devserv/forms/planning/masterapp.doc I certify that I know or have satisfactory evidence that John D. Wilson signed this instrument and acknowledged it to be his/her/their free and voluntary act for the uses and purposes mentioned in the instrument. Notary Public in and for t ~ ...--:-' Notary (Print) I 'C-IC~ ~ ) My appointment expires: I c:::::, I ~ ~ ( ~ 7 10/08/04 2005 Update to City of Renton Water System Plan The Plan is available for viewing and downloading at the following locations: For City of Renton review staff the plan is available on the City's computer network at: Piazza on 'Central\Sys2'\ 2005 Water System Plan -October 2004 Draft For outside agencies and public: https:llprojectpoint.buzzsaw.comlRenton Contact J.D. Wilson for access and instructions to the site. Phone: 425-430-7295 e-mail: jwilson@ci.renton.wa.us . CDs containing the plan, as well as hard copies of specific items, can be requested from Mr. Wilson. Note to City of Renton Development Services staff; As part of the SEP A Notice of Application and DSN please distribute Chapter 1 of the plan to the agencies listed below with the following message: "Enclosed is a copy of Chapter 1, Executive Summary and Introduction, of the Agency Review Draft of the 2005 Update to the City of Renton Water System Plan. The City is proceeding through the SEP A process and asks that any comments be returned by the close of the comment period, " "Should you have any questions regarding this notification please contact _______ _ If you require a copy of the plan please contact J.D. Wilson at 425-430-7295 or jwilson@ci.renton.wa.us " Agencies: King County Water District No. 90 Soos Creek Water & Sewer District 15606 Southeast 128th Street 14616 SE 192nd Street Renton, W A 98059-4540 POBox 58039 Renton~ WA 98058-1039 Cedar River Water and Sewer District Skyway Water & Sewer District 18300 SE Lake Y'bungs Road 11909 Renton Ave S PO Box 1040 Seattle, W A 98178 Maple Valley, WA 98038 ~ Coal Creek Utility District City of Newcastle 6801 -132nd Place SE Attn: City Manager Newcastle, W A 98059-3088 13020 Newcastle Way Newcastle, W A 98059 Page 1 of2 City of Tukwila City of Tukwila Attn: Department of Community Development Attn: Public Works Department Suite 100 6300 Southcenter Blvd 6300 Southcenter Blvd Tukwila, W A 98188-2544 Tukwila, W A 98188-2544 City of Kent City of Kent Attn: Public Works Department Attn: Planning Services 220 Fourth Avenue South 220 Fourth A venue South Kent, W A 98032 Kent, W A 98032 Muckleshoot Indian Tribe City of Seattle Attn: Fisheries Department Seattle Public Utilities 39015 -172nd Street 700 Fifth Avenue, Suite 4900 Auburn, WA 98092 POBox 34018 Seattle, W A 98124-4018 Maplewood Addition Water Cooperative c/o: Kurt Muller 13020 SE 151s! Street Renton, W A 98059 Page 2 of2 PROPOASAL SUMMARY 2005 UPDATE TO THE CITY OF RENTON WATER SYSTEM PLAN (A.K.A. 2005 CITY OF RENTON WATER SYSTEM PLAN) This is an update of the City of Renton Water System Plan. The plan covers the following: description of the existing drinking water system, land use in the water service and study area, projected water demands, water sources, wellhead protection, water rights, long range water supply plan, water quality plan, policies and criteria, system analysis, planned system improvements, operation and maintenance of the system, financial management, SEP A checklist, service area and . intertie agreements, Cross-Connection Control Plan, Water Conservation Program, Drinking Water Quality Monitoring Plan and Standard Specifications. Water demands are projected to the year 2025. The plan i s u sed a sag eneral planning tool for improving, maintaining, a nd operating the City of Renton's drinking water system. .) DEVELOPMENT PLAN" .. , 'G CITY OF REl'.'TOI OCT - 8 2004 ~E(cfEWVEfO Chapter 1 EXECUTIVE SUMMARY AND INTRODUCTION This chapter is an overview of the contents and organization of this water system plan update~ the significant improvements that have been completed since the 1998 Plan, and the major recommended improvements identified in this Plan. The pwpose of this Plan is to present a list of recommended facility improvements and policy criteria to be used to construct and maintain a potable municipal water supply system that is "adequate, safe and reliable." This plan is an update of the Water Plan adopted in . 1998 and approved in 1999, and complies with WAC 246-290. It is based on current City policy and on regulations and laws adopted by federal and state government and the Renton City Council. 1.1 Planning for Growth The City's service area population and land use trends are major factors affecting water system planning. The service area boundaries have been established through City policy, agreements with adjacent purveyors, and regional GMA planning. The City's service area boundaries will not change without annexation and any areas that ( are annexed by Renton will most likely continue to be supplied by the existing water \. supply systems in those annexed areas. r The City continues to experience steady growth within its water system as shown on the figure below. During the past six years similar growth has occurred for residential and non-residential customers within Renton, with average annual increases between 2 and 3 percent. .. ~ --.----~~-:--~-- Metered Connections 16.000 15,000 14,000 13,000 12,000 11,000 fO'O fOD.! RI\) RI" RI'1-RIll;) Rll). RI<' RI<O· W. RICO RID.! R)\) R)" R)'l, R)Il;) ,,OJ ,,OJ ,,OJ "q) "q) "q) ,,'ll "q) ,,OJ "q) ,,OJ "q) is ~ is ~ The City has sufficient annual water rights to meet its projected 20-year (2025) annual water requirements. The sources of supply will also be marginally able to meet the projected 2025 peak day demands. The estimated existing and 20-year peak hour Renton_Chi Executive Sununary-Intro.doc IOnl04 Chapter 1 demands exceed the City's instantaneous water rights. The City's storage is sufficient to supplement its sources of supply during existing and 2025 peak hour demand periods. However, additional storage or supply in the 196 Zone would help support the peak hour demands in the future. One exception to the City's ability to meet its average and peak day demands is if the highest level of redevelopment proposed in the Boeing Plant area were to occur. The City might have-difficulty meeting demands within the next 20 years if additional conservation, (lower average per customer water use) does not occur. If conservation continues to bring average customer water use down, then this high level of redevelopment would not present a challenge to· meeting demands until some time between 2025 and buildout. This high level of growth is one of several alternatives for redevelopment in the Boeing area. In the unlikely event that this level of growth was to occur, the City has several options for meeting future demands, which is . discussed in Chapter 7 of this Plan. The City dpes not anticipate applying for any new water rights or changes to its existing water rights. In 1997 the City had applied for a change of place for several of its water rights, but since then it has withdrawn those applications. The City's forecasted water rights are the same as its existing water rights. The City does however plan to pursue new interties with adjacent water purveyors. Currently the City is pursuing an intertie with Skyway Water and Sewer District. If it is accepted it would be installed within the next six years. 1.2 Existing System Renton faces significant challenges operating and maintaining its water system. It must protect susceptible sources of supply from contamination, while maintaining a cost effective, independent supply. It must maintain facilities that provide adequate service to its customers~white-meeting the City's service criteria and policies,-as-well as state and federal regulations. Renton's water system is expensive to operate and maintenance intensive since pumping is required to move water anywhere in the system. Despite these challenges, the existing water system is very well maintained and provides a high level of service. However, some system deficiencies do exist, such as storage and booster pump station capacity. Existing deficiencies will be resolved through the water system's capital improvement program (ClP) and through a phased construction schedule. Additional emergency power capabilities at its existing booster pump stations will be considered . where applicable. In addition to storage and pump station improvements, additional system redundancy and water quality is being addressed through the Maplewood Treatment Plant. The Maplewood Water Treatment Improvements project is scheduled to be completed in June 2005. The project addresses several water quality issues with the Maplewood wellfield that had limited its use. All of the City's facilities are replaced or upgraded as needed to comply with regulatory changes or as components wear out. Renton's ongoing pipe replacement 1-2 Renton_Chi Executive Sununary-Intro.doc 1017104 ( EXECUTIVE SUMMA~ND INTRODUCTION program targets replacement of aging steel and asbestos cement, as well as undersized water mains. ' 1.3 Future System The City plans on using a combination of conservation and storage to meet peak demands in the future ... The conservation program will eventually need to include a rate structure that provides more incentives for conservation during the summer months. As part of its CIP the City is planning to build several new storage facilities and upgrade some of its existing storage facilities to provide additional storage, Planned storage in the 565, 196,435, and 320 zones will be phased during the next20 years. It is recommended that the City maintain its existing interties and emergency supply agreements with other utilities, and pursue new interties. Renton will continue to supply all customers located within its service area boundaries and will control and administer all municipal services within the service area. 1.4 Improvements The City will prepare for and authorize a CIP program to perform the work listed in the Capital Improvement Plan. The major improvements anticipated within the next 20 years include: • Additional emergency power capacity • Additional booster station capacity • Additional storage capacity Additionahulspecitied -improvements include: replacement of worn-facilities, studies to assure future water supply, studies to anticipate treatment requirements, studies to minimize operating costs, and construction of water mains to serve new customers and to provide adequate fire protection to existing customers. The required capital improvements and stricter regulatory standards will require Renton to. raise its water rates. Renton's water quality and water supply are influenced by the Cedar River. The management of the river is being supervised by the Cedar River Basin Council. Renton will continue to participate in the basin management program. The character of development in the City is changing, and with it the available funding mechanisms for water system improvements, The City is now beginning to redevelop areas that have previously had other land uses, This opens the door for low-interest public loans, The loan program is currently being used to its maximum potential by the City to minimize the need for rate increases. Renton_Chi Executive Swrunary·lntro.doc 1017104 R. W. Beck 1-3 Chapter 1 1.5 How to Use This Plan Chapter 2, Water System Description, provides a general overview of the City's water service area, briefly describing the service art;:a characteristics, zoning, land use, neighboring jurisdictions, related plans, service area agreements, and general service policies. Chapter 3, Existing System, is a detailed description of the physical facilities of the system. It includes historical information on various facilities including references to project and contract file numbers. It also describes the capacity information for wells, storage facilities, booster pump stations, and interties. The pressure reducing valve (pRV)stations are listed with information on pressure zones served and valve sizes. The pipe inventory is provided with length of pipe in terms of size, material, age, ·and pressure zone. System maps and the system hydraulic profile are located in Appendix F. Chapter 4,. Planning Data and Water Demand Forecasts, includes popUlation and demographic trends, historical and existing water use, water demand forecasts, equivalent residential units, and the impacts of redevelopment of the Boeing Plant properties on demands. Chapter 5, Conservation Program, describes the conservation program requirements, reported data, the elements of the City's conservation program, conservation activities selected for implementation, funding for the conservation program, and target water- saving proj ections. Chapter 6, Policies, Criteria and Standards, covers the City'S policies and criteria for supply, service, finance, facilities, and organization. The chapter also describes the . City's project review procedures, policies, and requirements for outside parties (e.g., developers) and construction certification and follow-up procedures. The applicable C)ty municipal codejs ip._~RP~ndix_D. The City'S standard specificati_ons andj~t~ils are in Appendix o. . . Chapter 7, Water Supply, Water Rights and Water Quality, addresses the City'S water resources, condition, and capacity; the City's water.rights, interties, the water.quality plan, water treatment, state and federal regulatory requirements; a summary of the wellhead protection program, system reliability, long-range water supply planning, and recommended water supply improvements. Copies of the City's water rights documents are contained in Appendix C. The Drinking Water Quality Monitoring Program is in Appendix L. The Wellhead Protection Plan is in Appendix Q. Chapter 8, Water System Analysis, evaluates the present and future adequacy of the system including storage, distribution, and transmission with regard to average day, peak day, peak hour, and fire flow demands. Chapter 9, Operations and Maintenance, describes the management of the water utility, operator certification, system operation and control, comprehensive monitoring, a summary of the emergency response program, safety procedures, customer complaint response program, record keeping and reporting, and O&M improvements. The Cross Connection Control Plan is contained in Appendix G. 1-4 Renton_Chi Executive Swmnary-Intro.doc IOnl04 '. .-! EXECUTIVE SUMMAr \ND INTRODUCTION Chapter 10, Capital Improvement Program, provides a summary of the six-year capital improvement program; planned future capital projects (beyond the six-year . CIP planning cycle), and cost estimating methodology. Chapter 11, Financial Program, is a description of the water utility's financial condition and contains a projection of financial results through 2015. It contains historical financial performance, available funding sources, and the water utility financial plan including projected water rates. Renton_Chi Executive Sunnnary-Intro.doc 1017/04 R. W. Beck 1-5 Table of Contents · City of Renton 2005 Water System Plan Table of Contents Acronyms and Abbreviations Chapter 1 EXECUTIVE SUMMARY AND INTRODUCTION ••.........••••••...••.•.. 1-1 1.1 Planning for Growth ................................................................................ 1-1 1.2 Existing System ....................................................................................... 1-2 1.3 Future System ........................................................................................... 1-3 1.4 Improvements ................... : ...................................................................... 1-3 . 1.5 How to Use This Plan ............•.................. , .......................................... · .... 1-4 Chapter 2 WATER SYSTEMUESCRIPTION .•..... ~ ......•...........•...•••.•.....•..... ~~~ .... 2-1 2.1 Ownership and Management ................................................................... 2-1 2.2 System Background ................................................................................. 2-1 2.2.1· History of Water System Development and Growth ................... 2-1 2.2;2 Geography .................................................................................... 2-2 2.2.3 Existing Service Area .................................................................. 2-2 2.2.4 Future Service Area ..................................................................... 2-2 2.2.5 Zoning and Land Use ................................................................... 2-2 2.2.6 Neighboring and Adjacent Purveyors .......................................... 2-3 2.3 Related Plans ............................................................................................ 2-3 2.4 Service Ar.ea Agreements ........................................................................ 2-4 2.5 Service Area Policies ....................................... ~ ....................................... 2-5 Chapter-3-EXlS'f-ING·SYSTEM ......................................... i ............. · ...................... 3-1 3.1 System Overview ..................................................................................... 3-1 3.2 Water System Description ....................................................................... 3-2 3.2.1 Source of Supply .......................................................................... 3-2 3.2.2 Storage ....................................................................... , ........... ': ...... 3-7 3.2.3 Booster Pump Stations ................................................................. 3-9 3.2.4 Pressure Zones and Pressure-Reducing Stations (PRVs) .......... 3-13 3.2.5 Interties and Emergency Supply Sources .................................. 3-19 3.2.6 Distribution System ................................................................... 3-20 3.2.7 Source Treatment ....................................................................... 3-23 3.2.8 Telemetry and Supervisory Control and Data Acquisition (SCADA) ................................................................................... 3-24 Chapter 4 PLANNING DATA AND WATER DEMAND FORECASTS ........... 4-1 4.1 Population and Demographic Trends ....................................................... 4-1 4.1.1 Historical and Existing Population and Demographics ............... 4-1 4.1.2 Population and Demographic Forecasts ....................................... 4-2 4.2 Historical and Existing Water Use Information ....................................... 4-4 Rertton_ TOC.doc 1017104 Table of Contents 4.2.1 Service Connections .................................................................... 4-4 4.2.2 Source Production ........................................................................ 4-4 4.2.3 Consumption ................................................................................ 4-8 4.2.4 Water Use .................................................................................. 4-11 4.2.5 Average Day, Peak Day, and Peak Hour Demands ................... 4-12 4.2.6 Diurnal Variations in Demands ................................................. 4-13 4.3 Water Demand Forecasts ....................................................................... 4-14 4.4 Equivalent Residential Units ................................................................. 4-18 4.5 Boeing Redevelopment.. ........................................................................ 4-19 Chapter 5 CONSERVATION PROGRAM ...•...••...•.•.•.•••...••••••..•.•.•.•••..•.. ~ •••....•...•. 5-1 5.1 Conservation Objectives .................................................................. : ....... 5-1 5.2 Reported Data ........................................................................................... 5-2 5.3 Regional Conservation Participation ....................................................... 5-3 504 Conservation Program Requirements ...................................................... 5-3 5.5 Evaluation of Conservation Measures ..................................................... 5-5 5.6 Conservation Activities Selected for Implementation ... ~ ......................... 5-8 5.7 Conservation Program E(fectiveness ....................................................... 5-9 ·5.8 Funding for Conservation Program .................................................... ~ .. 5-13 5.9 Target Water-Saving Projections ........................................................... 5-13 . Chapter 6 POLICIES, CRITERIA, AND STANDARDS ..................................... 6-1 6.1 Introduction ....................... ; ...................................................................... 6-1 6.2 Supply Policies ................................................................. , ...................... 6-3 6.3 Service Policies ...... ; ................................................................................. 6-6 6.4 Finance Policies ................................................................................. : ..... 6-7 6.5 Facility Policies ....................................................................................... 6-9 6.6 Organizational Policies .......................................................................... 6-16 6.7 Project Review Procedures .................................................................... 6-17 6.8 Policies-anfr.Requifements for Outside Parties ..................... ;~ ........... ;-:-;;-6-18 6.9 Construction Certification and Follow-up Procedures .......................... 6-20 Chapter 7 WATER SUPPLY, WATER RIGHTS, AND WATER . QUALITY ................................................................................................................... _7-1 7.1 Water Supply Resources .......................................................................... 7-1 7.1.1 Cedar Valley Aquifer. .................................................................. 7-2 7.1.2 Downtown Wells ......................................................................... 7-2 7.1.3 Springbrook Springs .................................................................... 7-2 7.1.4 The Maplewood Production Aquifer ........................................... 7-3 7.1.5 Maplewood Wells ................................................................... ~ .... 7-3 7.1.6 Well 5A ........................................................................................ 7-3 7.2 Condition of Supply Sources ................................................................... 7-4 7.3 Capacity of Supply Sources ..................................................................... 7-4 7.4 Water Rights ............................................................................................ 7-5 7.4.1 Existing Water Rights .................................................................. 7-5 7.4.2 Forecasted Water Rights .............................................................. 7-6 7.5 Interties ........................................................................................... ; ........ 7-7 ii Renton_TOe.doc 1017104 City of Rer , Water System Plan --------------------~-----.' 7.6 Water Quality Plan and Treatment ........................................................ 7-12 7.6.1 Existing Water Quality .............................................................. 7-12 7.6.2 Treatment ....................... : ................................. ; ........ ; ................ 7-12 7.6.3 Water Quality Monitoring .......................................................... 7-13 7.6.4 Corrosion Control Program ........................................................ 7-14 7.7 State and Federal Regulatory Requirements .......................................... 7-15 7.7.1 Total Coliform Rule ........................................ : .......................... 7-15 7.7.2 Stage 2 Disinfectants and Disinfection Byproducts Rule .......... 7-17 7.7.3 Ground Water Rule (proposed) ................................................. 7-17 7.7.4 Radionuc1ides Rule (Proposed) .................................................. 7-17 7.7.5 Inorganic Chemical Analysis ..................................................... 7-18 7.7.6 Organic Chemical Analysis ...................... ; ................................ 7-18 7.8 Wellhead Protection Program ................................................................ 7-19 7.9 System Reliability ....... ~ .......................................................................... 7-20 7.9.1 Reliability Efforts ... ~ ........................................... : ................... " ... 7-20 7.9.2 Water Shortage Response Planning ........................................... 7-20 7.10 Long Range Water Supply Planning ...................................................... 7-20 7.10.1 Regional Water Supply Issues ................................................... 7-21 7.11 Recommended Water Supply Improvements ........................................ 7-23 Chapter 8 WATER SYSTEM ANAL YSIS ........................•....•.........•..••................. 8-1 . 8.1 Storage Evaluation ................................................................................... 8-1 8.1.1 Required Storage .......................................................................... 8-2 ( 8.1.2 Available Storage .......................................................................... 8-7 8.1.3 Comparison of Available and Required Storage ....................... 8-10 8.1.4 Boeing Redevelopment Storage Requirements ......................... 8-15 8.1.5 Recommended Storage Improvements ........ ; ............................. 8-15 8.2 Distribution and Transmission System .................................................. 8-16 8.2.1 Analysis of Average Day Demand ............................................ 8-17 ---~~8:2:2~-R.esults~ofPeak Hour Analysis ................ : ........... ;~~.; .. ~ ............. 8-19 8.2.3 Fire Flow Analysis ..................................................................... 8-20 8.2.4 Boeing Redevelopment Distribution System Analysis ...... : ... : ... 8-21 8.2.5 Highlands Redevelopment.. ....................................................... 8-23 8.2.6 Recommended Distribution System Improvements .................. 8-23 8.2.7 Summary of Fliture Redevelopment.. ........................................ 8-25 Chapter 9 OPERATIONS AND MAINTENANCE ............................................... 9-1 9 .1 Water System Management ..................................................................... 9-1 9.2 Operator Certification .............................................................................. 9-3 9.3 System Operation and Control.. ............................................................... 9-5 9.4 Emergency Response Program ................................................................ 9-6 9.5 Safety Procedures ..................................................................................... 9-7 9.6 Customer Complaint Response Program ................................................. 9-7 9.7 Record Keeping and Reporting ................................................................ 9-8 Chapter 10 CAPITAL IMPROVEMENT PROGRAM ...................................... 10-1 1 0.1 Six-Year CIP Project Summary ............................................................. 10-1 Renton _ TOC.doc 10/7/04. iii Table of Contents ., 10.1.1 Supply and Storage Improvements ........ ~ ................................... 10-1 10.1.2 Water Quality Improvements .................................................... 10-5 10.1.3 Water Main Rehabilitation ........................................................ 10-5 10.1.4 Major Maintenance .................................................................... 10-6 10.1.5 Water Utility Regulatory Compliance Programs ....................... 10-7 10.2 Future Capital Projects ........... : ............................................................ 10-10 10.2.1 Supply and Storage Improvements .......................................... 10-10 10.2.2 Water Main Rehabilitation ...................................................... 10-11 10.2.3 Major Maintenance .................................................................. 10-11 10.3 Cost Estimates ..................................................................................... 10-12 Chapter 11 FINANCIAL PROGRAM .................................................................. 11-1 11; 1 Water Utility Historical Financial Performance .................................... 11-1 11.2 Available Funding Sources .................................................................... 11-3 11.2.1 Federal, State, and County Sources ........................................... 11-3 11.2.2 Water Utility Revenue Sources ................................................. 11-5 11.3 Water Utility Financial Plan ............... : .................................................. 11-6 11.3.1 Key Assumptions ....................................................................... 11-6 11.3.2 Projected O&M Expenses .......................................................... 11-7 11.3.3 Projected Capital Expenditures .................................................. 11-8 11.3.4 Projected Operating and Bond Fund Results ............................. 11-8 11.3.5 Projected Construction Fund Results ......................................... 11-8 11.3.6 Water Rates .............................................................................. 11-11 11.3.7 Comparison with Other Utilities .............................................. 11-13 Appendices A SEPA B Agreements C Water Rights-Documents D Excerpts from the City of Renton Municipal Code Applicable to the Drinking Water Utility E Public Comment and Response F System Maps G Cross-Connection Control Plan H Department of Health Approval I King County Approval J City of Renton Adoption K Bibliography L -Drinking Water Quality Monitoring Program M Historical Water Consumption and Production N Demographic Projection Methodology a Standard Specifications and Details P Hydral!lic Model Development, Calibration, and Results Q Wellhead Protection Program R Financial Program Data S Municipal Water Law Checklists iv Renton_ Toe.doc 10/7/04 City of Rer 1 Water System Plan --------~----------~-----.' C-\ List of Tables Table 3-1 Pressure Zones by Geographical Area ....................................................... 3-2 Table 3-2 On-line Supply Sources -Installed Capacities .......................................... 3-3 Table 3-3 Interties ....................................................................................................... 3-6 Table 3-:-4 Existing Storage Facilities ....................................................................... 3-10 Table 3-5 Booster Pump Stations Rated Capacity .......... : ......................................... 3-11 Table 3-6 Pressure Zones -Minimum and Maximum Service Pressures and Elevations ..................................................... ; ....................................................... 3-14 Table 3-7 Pressure Zones by Operating Area ........................................................... 3-15 Table 3-8 Pressure Reducing Station ........................................................................ 3-16 Table 3-9 Emergency Supply Sources ..................................................................... 3-19 Table 3-1 Oa Pipe Inventory Length By Zone by Diameter ........................................ 3-21 Table 3-1 Ob Pipe Inventory Length By Material and Diameter ............................... 3-21 Table 3-1 Oc Pipe Inventory Length By Material and Age ........................................ 3-22 Table 3-11 Water Main Replacements Since 1998 ................................................... 3-23 Table 4-1 Historical and Existing Demographics ....................................................... 4-2 Table 4-2 HighDemographic Forecast! ....................................... , .............................. 4-3 Table 4-3 Low Demographic Forecast! ...................................................................... 4-3 Table 4-4 Historical Service Connections! ................................................................. 4-6 Table 4-5 Historical Water Production (ccf) ............................................................... 4-7 Table 4-6 HistoricalWater Consumption (ccf) ......................................................... 4-10 Table 4-7 Historical Per Unit Water Use .................................................................. 4-12 Table 4-8 Historical Average and Peak Demands and Peaking Factors ................... 4-13 Table 4-9 Future Per Unit Water Use (Without Additional Conservation)! ............. 4-15 Table 4-10 Future Per Unit Water Use (With Additional Conservation)! ................ 4-16 Table 4-11 Forecast Demands (Without Additional Conservation)! ........................ 4-16 Table 4-12 Forecast Demands (With Additional Conservation)! ............................. 4-17 Table 4-13 Historical and Forecast Equivalent Residential Units ............................ 4-18 Table 4-14-UemographicForecast with Alternative No.4 ofllie Boeing-- Redevelopment! ................................................................................................... 4-20 Table 4-15 Forecast Demands for Alternative No.4 ofthe Boeing Redevelopment (Without Additional Conservation!) .......................................... 4-21 Table 4-16 Forecast Demands for Alternative No.4 of the Boeing Redevelopment (With Additional Conservation!) ............................................... 4-21 Table 5-1 Data Reporting Required by DOH ............................................................. 5-2 Table 5-2 Water Conservation Program Measures Recommended by DOH ............. 5-4 Table 5-3 Large Water Users (>100,000 gpd) ............................................................ 5-8 Table 5-4: Conservation Program ............................................................................... 5-9 Table 7-1 Existing Water Rights Status ....................................................... : .............. 7-8 Table 7-2 Forecasted Water Rights Status ................................................................ 7-10 Table 7-3 Existing and Future Requirements of the Safe Drinking Water Act ........ 7-16 Table 8-1 a Required Equalizing and Standby Storage (Existing System Conditions) ............................................................................................................. 8-4 Table 8-1 b Required Equalizing and Standby Storage (Including Credit for Future Source of Supply Capacity at Existing Facilities) ...................................... 8-5 Table 8-2 Available Storage ...................................................................................... 8-10 Renton _ TOC.doc ! 017104 v Table of Contents Table 8-3a Comparison of Required and Available Storage (Existing System Conditions) ........................................................................................................... 8-13 . Table 8-3b Comparison ofRequrred and Available Storage (Including . . Credit for Future Emergency Power and Interties) .............................................. 8-14 Table 8-4 Required Storage for the 196 Zone with Boeing Redevelopment ·Alternative No. 4 ................................................................................................... 8-15 Table 8.;.5 Service Criteria for Required Fire Flow ................................................... 8-21 . Table 8-6 Required and Available Fire Flow ........................................................... 8-22 Table 8-7 Recommended Distribution System Improvements ................................. 8-24 Table 9-1 StaffCertification .................................... : .................................................. 9-4 Table 9-2 Operations & Maintenance Activities..,.. Typical Year ............................. 9-10 Table 9-3 Water Department Equipment (2004) ...................................................... 9~ 13 Table 10-1 6-Year Water System Capital Improvement Program ............................ 10-9 Table 10-2 Future Capital Projects ......................................................................... 10-12 Table 11;..1 Historical Results of the Operating andBond Funds (Funds 401 and 451) ..... ;~ ....................................................................................................... : .. 11-2 Table 11-2 Projected Water Utility Revenue Bond Issuances ................................. : 11-6 Table 11-3 Summary of Key Assumptions ............................................................... 11-7 Table 11-4 Projected Sources and Uses of Funds for the Operating and Bond Funds .................................................................................................................... 11-9 Table 11-5 Sources and Uses of Funds for the Construction Fund ............. : .......... 11-10 Table 11-6 Current City of Renton Water Rate Schedule ...................................... 11-11 11-7 Table 11-4 Projected Sources and Uses of Funds for the Operating and Bond Funds .......................................................................................................... 11-9 Table 11-5 Sources and Uses of Funds for the Construction Fund ........................ 11-10 Table 11-6 Current City of Renton Water Rate Schedule ..................................... 11-11 vi Renton_ Toe.doc 1017104 ( I , ., City of Rer 1 Water System Plan ------------------------------------~----- List of Figures Figure 2-1 City of Renton Drinking Water Organization ........................................... 2-9 Figure 2-2 Service Area ............................................................................................ 2-11 Figure 2-3 Comprehensive Land.Use ....................................................................... 2-13 ·Figure 24. Zoning ..................................................................................................... 2-15 Figure 4-1 Historical Percent of Non-Revenue Water .............................................. 4-12 Figure 4-2 City's Diurnal Curve ............................................................................... 4-14 Figure 4",,} Average and Peak Day Forecast Demands ............................................. 4-17 Figure 4-4 Average and Peak Day Forecast Demands Including the Boeing Plant Area Redevelopment .. : ................................................................................ 4-22 Figure 5-1: Historical Consumption per Connection ................................................ 5-10 Figure 5-2: Historical Single-Family Residential Consumption per Connection ........................................................................................................... 5-11 . Figure 5-3: Distribution of 2003 Single-Family Residential Consumption per Connection ............................... ~ ...................................................................... 5-12 Figure 5-4: Distribution of Aggregate 2003 Single-Family Residential Consumption ......................................................................................................... 5-12 Figure 11-1: Projected Single-Family Residential Monthly Water Rates for 2004 -2015 ......................................................................................................... 11-12 Figure 11-2: Single-Family Residential Monthly Water Rates for 2004 ............... 11-13 { -'--.- Renton_TOC.doc 1017104 vii 'I· I 2005 Update to the City of Renton Water System Plan -Environmental Checklist CITY OF RENTON DEVELOPMENT SERVICES DIVISION DEVELOPMENT PLANNING CITY OF RENTON OCT - 8 2004 R~(cE~VlElD ENVIRONMENTAL CHECKLIST PURPOSE OF CHECKLIST: The State Environmental Policy Act (SEPA), Chapter 43.21C RCW, requires all governmental agencies to consider the environmental impacts of a proposal before making decisions. An Environmental Impact Statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to help the agency decide whether an EIS is required. INSTRUCTIONS FOR APPLICANTS: This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most precise information known, or give the best description you can. You must answer each question accurately and carefully, to the best of your knowledge. In most cases, you should be able to answer the questions from your own observations or project plans without the need to hire experts. If you really do not know the aJlllwer, or if a question does not apply to your proposal, write "do not know" or "does not apply". Complete answers to the questions now may avoid unnecessary delays later. Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if you can. If you have problems, the governmental agencies can assist you. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact. USE OF CHECKLIST FOR NONPROJECT PROPOSALS: Complete this checklist for nonproject proposals, even though questions maybe answered "does not apply." IN ADDmON, complete the SUPPLEMENTAL SHEET FOR NONPROJECf ACfIONS (part D). For nonproject actions (actions involving decisions on policies, plans and programs), the references in the checklist to the words "project," "applicant," and "property or site" should be read as "proposal," "proposer," and "affected geographic area," respectively. A. BACKGROUND 1. Name of proposed project, if applicable: 2005 Update to the City of Renton Water System Plan (a.k.a. 2005 City of Renton Water System Plan) -1- 2005 Update to the City of Renton Water System Plan -Environmental Checklist 2. Name of applicant: City of Renton 3. Address and phone number of applicant and contact person: Abdoul Gafour Water Utility Engineering Supervisor City of Renton 1055 S. Grady Way Renton, W A 98055 425-430-7210 4. Date checklist prepared: October 8, 2004 5. Agency requesting checklist: City of Renton Washington State Department of Health Washington State Department of Ecology Metropolitan King County Council King County Department of Natural Resources Seattle -King County Department of Health King County Department of Development and Environmental Services Coal Creek Utility District King County Water District No. 90 Cedar River Water and Sewer District Soos Creek Water and Sewer District City of Kent City of Tukwila Skyway Water and Sewer District City of Seattle Muckelshoot Indian Tribe 6. Proposed timing or schedule (including phasing, if applicable): The Water System Plan identifies improvements to the City's drinking water system through "saturation" land development. The primary focus of the plan is improvements that are needed over the next five years. These improvements are to be included in the City's five year Capital Improvement Program. Reservoir sizing requirements use "saturation" conditions which are estimated to occur about the year 2040. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? IT yes, explain. Yes, the 2005 Water System Plan discusses additions and improvements to the system. -2- ,', .~ 2005 Update to the City of Renton Water System Plan -Environmental Checklist 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Projects proposed in the Plan may require, depending on the scope of the project, their own environmental checklist and determination unless categorically exempt. The checklists and determinations would be accomplished at the time the individual projects are a ccomplished. This applies to private development as well as public development. Please refer to Appendix K, Bibliography, of the Plan for other documents which contain environmental information directly related to this proposal. As part of the water rights permits for Wells 10, 11, 12, and 17 the City continues to monitor water levels adjacent to the Maplewood well field. 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. At this time there are no proposed land-use recommendations, which we are aware of, which would impact the proposed Water System Plan. 10. List any governmental approvals or permits that will be needed for your proposal, if known. The projects outlined in the 2005 Water System Plan may require approval from one or more of the following agencies: City of Renton Council Metropolitan King County Council King County Council Utilities Technical Review Committee Washington State Department of Health Washington State Department of Ecology Washington State Department of Transportation Washington State Department of Fisheries U.S. Army Corps of Engineers King County Department of Development and Environmental Services Coal Creek Utility District King County Water District No. 90 Cedar River Water and Sewer District Soos Creek Water and Sewer District City of Kent City of Tukwila Skyway Water and Sewer District City of Seattle Water Department Muckelshoot Indian Tribe 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. The 2005 Water System Plan is an update to the 1998 Water System Plan. This plan has been developed within the guidelines of the City of Renton Comprehensive adopted February 20, 1995, as updated in 2004, under the Growth Management Act. The plan serves as a guide for the maintenance and controlled expansion of the water system within the service planning area for the life of the plan, -3- 2005 Update to the City of Renton Water System Plan -Environmental Checklist in accordance with City, County, and State requirements under the Growth Management Act. The 2005 Water System Plan examines existing and potential water service over an area covering approximately 16 square miles. The existing water system is analyzed, future improvements are recommended, and financial issues are addressed, Discussions concerning adjacent water purveyors and related plans are also included. The planning area for this plan is the existing water service area plus the "transfer area" ofthe Skyway Coordinated Water System Plan. Please refer to Figure 3 of the Plan. The existing water service area is basically the City of Renton City limits, with some minor deviations. Service by the City beyond these areas is not currently contemplated. The Renton water service area has been defmed in two coordinated water system plans. These plans are the East King County Coordinated Water System Plan (October 1989 and update, August 1996) and the Skyway Coordinated Water System Plan (November 1988 and update, 1999). 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range if known. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. The service planning area is comprised of all or some portions of Sections 29, 31, and 32 of Township 24 North, Range 5 East, Sections 3, 4,5,6, 7, 8,9, 10, 15, 16, 17, 18,19,20,21,22,29,30,31, and 32 of Township 23 North, Range 5 East, Sections 5 and 6 of Township 22 North, Range 5 East, and Sections 12, 13, 14,24,25, and 36 of Township 23 North, Range 4 East. Figure 3 of the Plan shows the service area plus the "transfer area". Topography ranges in elevation from approximately 20 feet to 540 feet. B. ENVIRONMENTAL ELEMENTS 1. EARTH a. General description ofthe site (circle one); flat, rolling, hilly, steep slopes, mountainous, other. Topographically, Renton is composed of the relatively flat valleys of the Green and Cedar Rivers bounded by sharply rising hillsides rising to relatively flat plateaus on the west, east and southeast. b. What is the steepest slope on the site (approximate percent slope?) Within the planning area, there are numerous areas with slopes greater than 40%. c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. According to the Soil Conservation Service, four main soil types predominate in the City of Renton. These include the Alderwood Association, the Beausite-Alderwood Association, the Everett Association, and the Oridia-Seattle-Woodinville Association. Of these associations, the Oridia-Seattle- Woodinville are generally desirable farming soils and are found in the Green River Valley portion of the City. -4- '. 2005 Update to the City of Renton Water System Plan -Environmental Checklist d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. Many portions of the hillsides bordering the valleys are steeply sloping, unconsolidated glacial deposits that are highly susceptible to sliding. These areas have been mapped by the City of Renton and are subject to regulation under City Code Title IV, Development Regulations. e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. Implementing portions of the Water System Plan may require importing of fill. Fill would primarily be used for either structural fill or aesthetics. In certain areas, native soils may not be adequate for foundations or loading. In such cases, a limited amount of structural backfill may be imported from local gravel pits. Fill may also be required in some cases to construct berms or visual buffers around certain facilities. This fill would also be locally obtained. As predesign is developed for each project, approximate quantities of filling and grading would be estimated and discussed in separate environmental documents. Applicable City Code: Title IV, Development Regulations. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. The majority of the projects included in this plan would be constructed in road corridors. However, erosion could occur whenever soils are exposed to rainfall. All construction projects would be supervised by the Utilities Division to assure compliance with City erosion control requirements. Erosion control for each project would be subject to review by the Stormwater Utility. g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? Implementation of the plan would not change the amount of impervious surfaces in the City to a measurable degree. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: 2. AIR Any construction would comply with the City's drainage and erosion control requirements. Individual projects would generate specific environmental documents to address earth impacts. Applicable City Code: Title IV, Development Regulations. a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. Implementation of the plan should not result in any significant emissions or dust. Minor amounts of dust may be produced during construction of some of the proposed facilities. b. Are there any off-site sources of emission or odor that may affect your proposal? If so, generally describe. Not known. -5- 2005 Update to the City of Renton Water System Plan -Environmental Checklist c. Proposed measures to reduce or control emissions or other impacts to air, if any: If necessary, watering exposed soils to control dust would occur. Individual projects would generate specific environmental documents to address air impacts, if any. 3. WATER a. Surface Water: 1) Is there any surface water body on or in the immediate vicinity of the site (including year-round and seasonal streams, s aItwater, lakes, ponds, wetJands)? I f yes, describe type and provide names. If appropriate, state what stream or river it flows into. Yes. The northwest boundary of the City is the shoreline of Lake Washington. Other rivers and streams include the Cedar River, the Green River, May C reek, and Springbrook Creek. The Cedar River is tributary to Lake Washington. The Green River is tributary to Puget Sound. May Creeks flows into Lake Washington and Springbrook Creek into the Green River. A list of wetlands and stream corridors, with descriptions, is contained in the document Critical A reas Inventory, C ity of Renton Wetlands and Stream Corridors, Ju ne 1 991. A Iso refer to King County Sensitive Areas Map Folio, December 1990 ; King County GIS Center (http://www.metrokc.gov/gis/mapportall ). 2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. As shown in Chapter 10 of the Water System Plan, some of the proposed improvements would cross or be constructed near bodies of water. Shoreline Management Substantial Development Permits would be obtained when required. Applicable City Code: Title IV, Development Regulations. 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. No filling or dredging of water bodies or wetlands is anticipated. 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. No surface water withdrawals or diversions are planned. S) Does the proposal lie within a 100-year floodplain? If so, note location on the site plan. None of the proposed improvements would occur within the limits of the 100-year floodplain. 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. No waste discharges are proposed in the plan. " 2005 Update to the City of Renton Water System Plan -Environmental Checklist b. Ground Water: 1) Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities if known. The City of Renton is totally dependent on groundwater for its water supply. Renton's 20 year water supply needs are now satisfied. It is estimated that the current sources will meet demands for 20 years or longer. Renton currently has water rights for about 14,800 acre-feet per year. The City has rights for approximately 10,600 gallons per minute (gpm) and supplemental rights for approximately 4,500 gpm. Additional supplemental rights for about 7,200 gpm are being pursued under permits for Wells 10, 11, 12, and 17 in the Maplewood wellfield. This well field is being developed to increase the reliability of the City's water supply. Wells 11 and 17 are now producing wells. Wells 10 and 12 are being developed. Because of the high cost to develop additional supply sources, it may be less expensive to build peak supply storage than develop additional sources when they are needed in the future. A final decision on long-term supply options can wait for several years until the various regional alternatives have been completed (or exhausted) and the relationship between the cost of supply and storage can be quantified. 2) Describe waste material t hat will bed ischarged into the ground from septic tanks 0 r other sources, if any (for example: Domestic sewage; industrial, containing the following chemicals ... ; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. No discharges are contemplated. c. Water Runoff (including storm water): 1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters? If so, describe. In some cases, implementation of the plan would create additional impervious surfaces that would create storrnwater runoff. In those cases, the water would be retained or detained consistent with Renton storrnwater control requirements. Applicable City Code: Title IV, Chapter 22, Storm and Surface Water Drainage. 2) Could waste material enter ground or surface waters? If so, generally describe. No. d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: Minimum amounts of new impervious surfaces would be created. Any storrnwater would be controlled consistent with City code. 4. PLANTS a. Check or circle types of vegetation found on the site: ---X.-deciduous tree: alder, maple, aspen, other ---X.-evergreen tree: fir, cedar, pine, other -7- 2005 Update to the City of Renton Water System Plan -Environmental Checklist --X-shrubs --X-grass --X-pasture --X-crop or grain --X-wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other --X-water plants: water lily, eel grass, mil foil, other --X-other types of vegetation b. What kind and amount of vegetation will be removed or altered? The specific types and amounts of vegetation that may be disturbed cannot be predicted. Since most projects would be within right-of-ways and under streets, minimum amounts of disturbance are expected. Applicable City Code: Title IV, Chapter 9, Land Clearing and Tree Cutting Ordinance. c. List threatened or endangered species known to be on or near the site. NoneknoWD. d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: Above-ground structures or facilities would be landscaped to be compatible with the character of the surroundings. 5. ANIMALS a. Circle any birds and animals which have been observed on or near the site or are known to be on or near the site: Birds: hawk, heron, eagle, songbirds, other: woodpecker, wren, duck, Canadian goose, owl Mammals: deer, bear, elk, beaver, other: raccoon, squirrel, weasel Fish: bass, salmon, trout, herring, shellfish, other b. List any threatened or endangered species known to be on or near the site. NoneknoWD. c. Is the site part of a migration route? If so, explain Yes. The entire state of Washington is within the Pacific flyway. The Cedar and Green Rivers are also spawning routes for salmon and steelhead trout. d. Proposed measures to preserve or enhance wildlife, if any: No specific wildlife enhancement measures are proposed, since the plan should not have any measurable impact on wildlife. -8- .' 2005 Update to the City of Renton Water System Plan -Environmental Checklist 6. ENERGY AND NATURAL RESOURCES a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. Significant amounts of electricity are used by the City to operate pumps that move water around the system. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. Solar access would not be affected by implementation ofthe plan. c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: The Water System Emergency Response Plan and the Water Conservation Plan are specifically designed to conserve water resources and reduce usage during an emergency. 7. ENVIRONMENTAL HEALTH a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. The City both chlorinates and fluoridates its water supply. The operation of the treatment plant for the Maplewood wellfield uses both sodium hydroxide and sulfuric acid. The proposed corrosion control treatment facilities for the downtown wells and Springbrook Springs will use sodium hydroxide (see para. B.7.a.2). 1) Describe special emergency services that might be required. No special emergency services would be required as part of this plan. 2) Proposed measures to reduce or control environmental health hazards, if any: b. Noise As part of the City's safety program and in compliance with OSHA regulations, procedures and controls are in place to prevent any exposure to potentially hazardous chemicals. 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? Operation of the water system is not affected by noise. 2) What types and levels of noise would be created by or associated with the project on a short-term 0 r a long-term basis (for example: traffic, construction, 0 peration, 0 ther)? Indicate what hours noise would come from the site. Operation of water pumps creates noise. -9- 2005 Update to the City of Renton Water System Plan -Environmental Checklist 3) Proposed measures to reduce or control noise impacts, if any: Well pump houses and system pump stations are sited and constructed to prevent noise from affecting people or activities. Individual projects would generate specific environmental documents to address noise impacts, if any. 8. LAND AND SHORELINE USE a. What is the current use of the site and adjacent properties? The predominant land use in the City of Renton is residential at 24% use. Industrial use is 14% and commercial use is 7%. The remaining 55% is vacant, public and rights-of-way. Long range planning projections for use of non-vacant, non-right-of-way land are: 58% residential, 16% commercial, 14% industrial, and 10% public. b. Has the site been used for agriculture? If so, describe. In the past farming had been a small part of the economic base of the City. c. Describe any structures on the site. Individual structures should not be affected by implementation of the water plan. The types and distribution of the types of structures are described in paragraph B.8.a, above. d. Will any structures be demolished? If so, what? No. e. What is the current zoning classification of the site? A variety of zones exist throughout the city. These zones are defmed under City Code Title N, Chapter 31, Zoning Code. f. What is the current comprehensive plan designation of the site? Please refer to the City of Renton Comprehensive Plan for a detailed description of land use designations. Also, refer to Figure 4 of the Comprehensive Water System Plan. g. If applicable, what is the current shoreline master program designation of the site? No specific sites under shoreline jurisdiction are yet identified. h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. Portions of the City have been classified as environmentally sensitive steep slopes, stream corridors, or wetlands. Maps showing the locations of these areas are maintained by the City of Renton Department of Planning/Building/Public Works. i. Approximately how many people would reside or work in the completed project? The proposal is not a project that would create jobs or housing. -10- " ,I 2005 Update to the City of Renton Water System Plan -Environmental Checklist j. Approximately how many people would the completed project displace? None. k. Proposed measures to avoid or reduce displacement impacts, if any: None necessary. I. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: The intent of the Comprehensive Water System Plan is to implement the land use plans and policies of the City. The water system plan addresses water supply, storage, transmission, and distribution improvements necessary to support the land use goals and policies of the City. 9. HOUSING a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. None. b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. None. c. Proposed measures to reduce or control housing impacts, if any: None required. 10. AESTHETICS a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed. The plan includes several proposed reservoirs over the next 50 years. They range in height from 30 to 110 feet. The reservoirs would most likely be constructed of steel or concrete. b. What views in the immediate vicinity would be altered or obstructed? Until specific designs are prepared, effects on views cannot be described. Subsequent environmental documents would address aesthetic impacts, if any. c. Proposed measures to reduce or control aesthetic impacts, if any: In the past the City has worked with such groups as the Parks Board and Arts Commission to minimize visual affects. The Utility Division plans to continue this close coordination. 11. LIGHT AND GLARE a. What type of light or glare will the proposal produce? What time of day would it mainly occur? It is not anticipated that implementing the plan would create any facility that generates light or glare. -11- 2005 Update to the City of Renton Water System Plan -Environmental Checklist b. Could light or glare from the finished project be a safety hazard or interfere with views? No. c. What existing off-site sources of light or glare may affect your proposal? It is not anticipated that off-site light or glare would affect the operation of the water utility. d. Proposed measures to reduce or control light and glare impacts, if any: None. Individual projects would generate specific environmental documents to address light and glare impacts, if any. 12. RECREATION a. What designated and informal recreational opportunities are in the immediate vicinity? The City of Renton owns and operates many park and recreation facilities throughout the City. A map showing the location of these areas is maintained by the City of Renton Planning/Building/Public Works Department. b. Would the proposed project displace any existing recreational uses? If so, describe. No. c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: None proposed. Individual projects would generate specific environmental documents to address impacts on recreation, if any. 13. mSTORIC AND CULTURAL PRESERVATION a. Are there any places or objects listed on, or proposed for, national state, or local preservation registers known to be on or next to the site? If so, generally describe. ' A partiallistiog of historic building and structures in the city includes: Coal Mine Hoist Foundation Renton Fire Station Renton High School Henry Ford School The Melrose Tavern b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. See B.13.a, above. c. Proposed measures to reduce or control impacts, if any: It is not anticipated the implementation of the plan would affect any historical or archeological resources. Individual projects would generate specific environmental documents to address impacts on historic resources, if any. -12- .' 2005 Update to the City of Renton Water System Plan -Environmental Checklist 14. TRANSPORTATION a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. The primary highways through Renton are Interstate 405 and State Routes 167 and 169. Other principal streets are described in the City of Renton Comprehensive Plan. b. Is site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? Many METRO .bus routes serve the City of Renton. A map showing transit service routes is included in the City of Renton Comprehensive Plan. c. How many parking s paces would the completed project have? H ow many would the project eliminate? Creation or elimination of parking is not part of the proposal. d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private? Many of the proposed improvements would be placed in City streets. Restoration of those streets would be an important part of the project. e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. Some parts of the proposed projects may be constructed within the limits of the Renton airport and/or cross railroad tracks within the City. Subsequent environmental assessment would be conducted for each project. f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. None. g. Proposed measures to reduce or control transportation impacts, if any: Careful staging and flagging ofprojects would be required. Restricting construction hours to avoid peak traffic hours would also be required on principal road corridors. Individual projects would generate specific environmental documents to address traffic impacts, if any. 15. PUBLIC SERVICES a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. No. b. Proposed measures to reduce or control direct impacts on public services, if any. Implementing the plan would enhance the City's ability to meet the flre protection needs of its citizens. -13- 2005 Update to the City of Renton Water System Plan -Environmental Checklist 16. UTILITIES a. Circle utilities currently available at the site: electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system, other: storm water systems. b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. The Comprehensive Water System Plan addresses water supply, storage, transmission and distribution needs for the City's planning area. The major purpose of the plan is to identify storage, transmission, and distribution systems necessary to serve the estimated population for the next twenty years (at saturation for storage). The p Ian addresses groundwater, aquifer protection, water quality, operation and maintenance, and financing issues. Future water supply is also discussed. C. SIGNATURE I, the undersigned, state that tot he best 0 f my knowledge t he above information is t rue a nd complete. I tis understood that the Ie agency may withdraw any declaration of non-significance that it might issue in reliance upon this chec~o I t re be a willful misrepresentation or willful lack of full disclosure on my part. Proponent: -.:;.,p.----I-....... ..I-----""=--==------ Name Printed: Date: -14- 2005 Update to the City of Renton Water System Plan -Environmental Checklist D. SUPPLEMENTAL SHEETS FOR NONPROJECT ACTIONS (These sheets should only be used for actions involving decisions on policies, plans and programs. You do not need to fill out these sheets for project actions.) . Because these questions are very general, it may be helpful to read them in conjunction with the list of the elements of the environment. When answering these questions, be aware of the extent the proposal, or the types of activities likely to result from the proposal, would affect the item at a greater intensity or at a faster rate than if the proposal were not implemented. Respond briefly imd in general terms. 1. How would the proposal be likely to increase discharge to water; emissions to air; production, storage, or release of toxic or hazardous substances; or production of noise? The construction of the proposed capital improvements projects will temporaily increase emissions to air and produce noise during the construction period. Proposed measures to avoid or reduce such increases are: Use best practices during the construction period. Specifics will be addressed in the Environmental checklists for the individual projects. 2. How would the proposal be likely to affect plants, animals, fish, or marine life? Construction of water storage tanks, booster pump stations and emergency generator facilities will reduce the plant cover on the proposed sites. Proposed measures to protect or conserve plants, animals, fish, or marine life are: Apply good design and construction practices to limit the disruption to the environment. Specifics will be addressed in the Environmental checklists for the individual projects. 3. How would the proposal be likely to deplete energy or natural resources? The intent of the proposal is to provide better energy and natural resource use by rationally projecting the City's needs and how those needs will be met. Proposed measures to protect or conserve energy and natural resources are: See above. 4. How would the proposal be likely to use or affect environmentally sensitive areas or areas designated (or eligible or under study) for governmental protection; such as parks, wilderness, wild and scenic rivers, threatened or endangered species habitat, historic or cultural sites, wetlands, floodplains, or prime farmlands? The City's Comprehensive P Ian was closely reviewed toe nsure that this Comprehensive Water System Plan would be compatible with environmentally sensitive areas. See also: questions A. 7 and B.8.l above. Proposed measures to protect such resources or to avoid or reduce impacts are: See above. -15- 2005 Update to the City of Renton Water System Plan -Environmental Checklist 5. How would the proposal be likely to affect land and shoreline use, including whether it would allow or encourage land or shoreline uses incompatible with existing plans? The City's Comprehensive P Ian was closely reviewed toe nsure that this Comprehensive Water System Plan would be compatible with land and shoreline existing and proposed use. Proposed measures to avoid or reduce shoreline and land use impacts are: Does not apply. 6. How would the proposal be likely to increase demands on transportation or public services and utilities? The Comprehensive Water System Plan would help accommodate the increased demand on water service that the City has been and is expecting to continue experiencing. Proposed measures to reduce or respond to such demand(s) are: See above. 7. Identify, if possible, whether the proposal may conflict with local, state, or federal laws or requirements for the protection of the environment. The Plan is in accordance with all, local, State, and Federal law and requirements for the protection of the environment. SIGNATURE I, the undersigned, state that tot he best 0 f my knowledge t he above information is t rue and complete. I tis understood that the lead agency may withdraw any declaration of non-significance that it might issue in reliance upon this checklist hou th e be y willful misrepresentation or willful lack of full disclosure on my part. Proponent: Name Printed: J Date: 8 OC,"1" 200+ -16- INTERFUND TRANSFER Transfer Number: ._-----Date: itJ/B/ot{ I t P /8 t fN W A1 ift.· Vru..-Il·t Department To Be Charged (Transfer Out -From) {'1-J 00 500 0 f . 0 . , . . ~ , Description If Account Number . WOlFunction Amount \Jfna SYSlGwr-f..A~ Uf10A1t; I~ 'boo 0014-. (,5. 05S 140 551~o/51ttJ I "_4{}0. 00 Department Authorization: Department To Be Credited (Transfer In -To)----:P~' f-1_8--1-/_A_~ _________ : Description Account Number U1Vlran~ etYtUJ (JJO, ~1.f5: g'1 , (XJ, txJ01- WOlFunction Amount 5bIO .I-/CO, tV Distribution: White: Finance Department Yellow: Department to be Cllarged Pink: Department to be Credited Printed: 10-08-2004 Payment Made: e.TY OF RENTON 1055 S. Grady Way Renton, WA 98055 Land Use Actions RECEIPT Permit#: LUA04-122 10/08/200402:08 PM Receipt Number: R0405465 Total Payment: 400.00 Payee: INTER OFFICE TRANSFER Current Payment Made to the Following Items: Trans Account Code Description Amount 5010 000.345.81.00.0007 Environmental Review 400.00 Payments made for this receipt Trans Method Description Amount Payment Other Account Balances Trans Account Code 3021 5006 5007 5008 5009 5010 5011 5012 5013 5014 5015 5016 5017 5018 5019 5020 5021 5022 5024 5036 5909 5941 5954 5955 5998 303.000.00.345.85 000.345.81.00.0002 000.345.81.00.0003 000.345.81.00.0004 000.345.81.00.0006 000.345.81.00.0007 000.345.81.00.0008 000.345.81.00.0009 000.345.81.00.0010 000.345.81.00.0011 000.345.81.00.0012 000.345.81.00.0013 000.345.81.00.0014 000.345.81.00.0015 000.345.81.00.0016 000.345.81.00.0017 000.345.81.00.0018 000.345.81.00.0019 000.345.81.00.0024 000.345.81.00.0005 000.341.60.00.0024 000.341.50.00.0000 604.237.00.00.0000 000.05.519.90.42.1 000.231.70.00.0000 Description Park Mitigation Fee Annexation Fees Appeals/Waivers Binding Site/Short Plat Conditional Use Fees Environmental Review Prelim/Tentative Plat Final Plat PUD Grading & Filling Fees Lot Line Adjustment Mobile Home Parks Rezone Routine Vegetation Mgmt Shoreline Subst Dev Site Plan Approval Temp Use or Fence Review Variance Fees Conditional Approval Fee Comprehensive Plan Amend Booklets/EIS/Copies Maps (Taxable) Special Deposits Postage Tax Remaining Balance Due: $0.00 400.00 Balance Due .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 City of Renton 2005 Water System Plan Table of Contents Table of Contents Acronyms and Abbreviations Chapter 1 EXECUTIVE SUMMARY AND INTRODUCTION .......................... 1-1 1.1 Planning for Growth ..................................................................... '" ........ 1-1 1.2 Existing System ....................................................................................... 1-2 1.3 Future System ........................................................................................... 1-3 1.4 Improvements ................... ; ...................................................................... 1-3 1.5 How to Use This Plan .............................................................................. 1-4 Chapter 2 WATER SYSTEM.DESCRIPTION ..................................................... 2-1 2.1 Ownership and Management ................................................................... 2-1 2.2" System Background ................................................................................. 2-1 2.2.1 History of Water System Development and Growth ................... 2-1 2.2.2 Geography .................................................................................... 2-2 2.2.3 Existing Service Area .................................................................. 2-2 2.2.4 Future Service Area ..................................................................... 2-2 2.2.5 Zoning and Land Use ................................................................... 2-2 2.2.6 Neighboring and Adjacent Purveyors .......................................... 2-3 2.3 Related Plans ............................................................................................ 2-3 2.4 Service Area Agreements ........................................................................ 2-4 2.5 Service Area Policies ............................................................................... 2-5 Chapter 3 EXISTING SYSTEM ............................................................................. 3-1 3.1 System Overview ..................................................................................... 3-1 3.2 Water System Description ....................................................................... 3-2 3.2.1 Source of Supply .......................................................................... 3-2 3.2.2 Storage ................................................................................... : ...... 3-7 3.2.3 Booster Pump Stations ................................................................. 3-9 3.2.4 Pressure Zones and Pressure-Reducing Stations (PRVs) .......... 3-13 3.2.5 Interties and Emergency Supply Sources .................................. 3-19 3.2.6 Distribution System ................................................................... 3-20 3.2.7 Source Treatment ....................................................................... 3-23 3.2.8 Telemetry and Supervisory Control and Data Acquisition (SCADA') ................................................................................... 3-24 Chapter 4 PLANNING DATA AND WATER DEMAND FORECASTS ........... 4-1 4.1 Population and Demographic Trends ....................................................... 4-1 4.1.1 Historical and Existing Population and Demographics ............... 4-1 4.1.2 Population and Demographic Forecasts ....................................... 4-2 4.2 Historical and Existing Water Use Information ....................................... 4-4 Renton_TOC.doc 1017104 Table of Contents 4.2.1 Service Connections .................................................................... 4-4 4.2.2 Source Production ........................................................................ 4-4 4.2.3 Consumption ................................................................................ 4-8 4.2.4 Water Use .................................................................................. 4-11 . 4.2.5 Average Day, Peak Day, and Peak Hour Demands ................... 4-12 4.2.6 -Diurnal Variations in Demands ................................................. 4-13 4.3 Water Demand Forecasts ....................................................................... 4-14 4.4 Equivalent Residential Units ................................................................. 4-18 4.5 Boeing Redevelopment .......................................................................... 4-19 Chapter 5 CONSERVATION PROGRAM ............................................................ 5-1 5.1 Conservation Objectives .................................................................. : ....... 5-1 5.2 Reported Data ............................................................................................ 5-2 5.3 Regional Conservation Participation ....................................................... 5-3 5.4 Conservation Program Requirements ...................................................... 5-3 5.5 Evaluation of Conservation Measures ..................................................... 5-5 5.6 Conservation Activities Selected for hnplementation ............................. 5-8 5.7 Conservation Program Effectiveness ....................................................... 5-9 5.8 Funding for Conservation Program ....................................................... 5-13 5.9 Target Water-Saving Projections ........................................................... 5-13 Chapter 6 POLICIES, CRITERIA, AND STANDARDS ..................................... 6-1 6.1 Introduction ........... ; .................................................................................. 6-1 6.2 Supply Policies ................................................................. , ...................... 6-3 6.3 SerVice Policies ........................................................................................ 6-6 6.4 Finance Policies ....................................................................................... 6-7 6.5 Facility Policies ....................................................................................... 6-9 6.6 Organizational Policies .......................................................................... 6-16 6.7 Project Review Procedures .................................................................... 6-17 6.8 Policies and Requirements for Outside Parties ...................................... 6-18 6.9 Construction Certification and Follow-up Procedures .......................... 6-20 Chapter 7 WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY .................................................................................................................. 7-1 7.1 Water Supply Resources .......................................................................... 7-1 7.1.1 Cedar Valley Aquifer.. ................................................................. 7-2 7.1.2 Downtown Wells ......................................................................... 7-2 7.1.3 Springbrook Springs .................................................................... 7-2 7.1.4 The Maplewood Production Aquifer ........................................... 7-3 7.1.5 Maplewood Wells ........................................................................ 7-3 7.1.6 We115A ........................................................................................ 7-3 7.2 Condition of Supply Sources .................................................................... 7-4 7.3 Capacity of Supply Sources ..................................................................... 7-4 7.4 Water Rights ............................................................................................ 7-5 7.4.1 Existing Water Rights .................................................................. 7-5 7.4.2 Forecasted Water Rights .............................................................. 7-6 7.5 Interties .................................................................................................... 7-7 ii Renton_TOC.doc 10/7/04 City of Renton Water System Plan 7.6 Water Quality Plan and Treatment ........................................................ 7-12 7.6.1 Existing Water Quality .............................................................. 7-12 7.6.2 Treatment ....................... ~ .................................. ~ ......................... 7-12 7.6.3 Water Quality Monitoring .......................................................... 7-13 7.6.4 Corrosion Control Program ........................................................ 7-14 7.7 State and Federal Regulatory Requirements .......................................... 7-15 7.7.1 Total Coliform Rule ................................................................... 7-15 7.7.2 Stage 2 Disinfectants and Disinfection Byproducts Rule .......... 7-17 7.7.3 Ground Water Rule (proposed) ................................................. 7-17 7.7.4 Radionuc1ides Rule (Proposed) .................................................. 7-17 7.7.5 Inorganic Chemical Analysis ..................................................... 7-18 7.7.6 Organic Chemical Analysis ....................................................... 7-18 7.8 Wellhead Protection Pro gram ................................................................ 7-19 7.9 System Reliability .................................................................................. 7-20 7.9.1 Reliability Efforts ................................................................... ; ... 7-20 7.9.2 Water Shortage Response Planning ........................................... 7-20 7.10 Long Range Water Supply Planning ...................................................... 7-20 7.10.1 Regional Water Supply Issues ................................................... 7-21 7.11 Recommended Water Supply Improvements ........................................ 7-23 Chapter 8 WATER SYSTEM ANAL YSIS ............................................................. 8-1 8.1 Storage Evaluation ................................................................................... 8-1 8.1.1 Required Storage .......................................................................... 8-2 8.1.2 A vailab Ie Storage .................................. ,. ...................................... 8-7 8.1.3 Comparison of Available and Required Storage ....................... 8-10 8.1.4 Boeing Redevelopment Storage Requirements ......................... 8-15 8.1.5 Recommended Storage Improvements ........ ; ............................. 8-15 8.2 Distribution and Transmission System .................................................. 8-16 8.2.1 Analysis of Average Day Demand ............................................ 8-17 8.2.2 Results of Peak Hour Analysis .................................................. 8-19 8.2.3 Fire Flow Analysis ..................................................................... 8-20 8.2.4 Boeing Redevelopment Distribution System Analysis .......... : ... 8-21 8.2.5 Highlands Redevelopment.. ....................................................... 8-23 8.2.6 Recommended Distribution System Improvements .................. 8-23 8.2.7 Summary of Future Redevelopment .......................................... 8-25 Chapter 9 OPERATIONS AND MAINTENANCE ............................................... 9-1 9.1 Water System Management ..................................................................... 9-1 9.2 Operator Certification .............................................................................. 9-3 9.3 System Operation and ControL ............................................................... 9-5 9.4 Emergency Response Program ................................................................ 9-6 9.5 Safety Procedures ..................................................................................... 9-7 9.6 Customer Complaint Response Program .................................................. 9-7 9.7 Record Keeping and Reporting ................................................................ 9-8 Chapter 10 CAPITAL IMPROVEMENT PROGRAM ...................................... 10-1 10.1 Six-Year CIP Project Summary ............................................................. 10-1 Renton_TOe.doc 10/7/04 iii Table of Contents 10.1.1 Supply and Storage Improvements ........ : ................................... 10-1 10.1.2 Water Quality Improvements .................................................... 10-5 10.1.3 Water Main Rehabilitation ........................................................ 10-5 10.1.4 Major Maintenance .................................................................... 10-6 10.1.5 Water Utility Regulatory Compliance Programs ....................... 10-7 10.2 Future Capital Projects ........................................................................ 10-10 10.2.1 Supply, and Storage Improvements .......................................... 10-10 10.2.2 Water Main Rehabilitation ...................................................... 10-11 10.2.3 Major Maintenance .................................................................. 10-11 10.3 Cost Estimates ..................................................................................... 10-12 Chapter 11 FINANCIAL PROGRA.M .................................................................. 11-1 1 L 1 Water Utility Historical Financial Performance .................................... 11-1 11.2 Available Funding Sources .................................................................... 11-3 11.2.1 Federal, State, and County Sources ........................................... 11-3 11.2.2 Water Utility Revenue Sources ................................................. 11-5 11.3 Water Utility Financial Plan .................................................................. 11-6 11.3.1 Key AssliInptions ....................................................................... 11-6 11.3.2 Projected O&M Expenses .......................................................... 11-7 11.3.3 Projected Capital Expenditures .................................................. 11-8 11.3.4 Projected Operating and Bond Fund Results ............................. 11-8 11.3.5 Projected Construction Fund ResuIts ......................................... 11-8 11.3.6 Water Rates .............................................................................. 11-11 11.3.7 Comparison with Other Utilities .............................................. 11-13 Appendices A SEPA B Agreements C Water Rights Documents _ D Excerpts from the City of Renton Municipal Code Applicable to the Drinking Water Utility E Public Comment and Response F System Maps G Cross-Connection Control Plan H Department of Health Approval I King County Approval J City of Renton Adoption K Bibliography L -Drinking Water Quality Monitoring Program M Historical Water Consumption and Production N Demographic Projection Methodology o Standard Specifications and Details P Hydraulic Model Development, Calibration, and Results Q Wellhead Protection Program R Financial Program Data S Municipal Water Law Checklists iv Renton_ Toe.doc 10/7/04 City of Renton Water System Plan List of Tables Table 3-1 Pressure Zones by Geographical Area ....................................................... 3-2 Table 3-2 On-line Supply Sources -Installed Capacities .......................................... 3-3 Table 3-3 Interties ....................................................................................................... 3-6 Table 3-4 Existing Storage Facilities ....................................................................... 3-10 Table 3-5 Booster Pump Stations Rated Capacity .......... : ......................................... 3-11 Table 3-6 Pressure Zones -Minimum and Maximum Service Pressures and Elevations ............................................................................................................. 3-14 Table 3-7 Pressure Zones by Operating Area ........................................................... 3-15 Table 3-8 Pressure Reducing Station ........................................................................ 3-16 Table 3-9 Emergency Supply Sources ..................................................................... 3-19 Table 3-1 Oa Pipe Inventory Length By Zone by Diameter ....................................... 3-21 Table 3-10b Pipe Inventory Length By Material and Diameter ............................... 3-21 Table 3-10c Pipe Inventory Length By Material and Age ........................................ 3-22 Table 3-11 Water Main Replacements Since 1998 ................................................... 3-23 Table 4-1 Historical and Existing Demographics ....................................................... 4-2 Table 4-2 High Demographic Forecast! ...................................................................... 4-3 Table 4-3 Low Demographic Forecast! ...................................................................... 4-3 Table 4-4 Historical Service Connections! ................................................................. 4-6 Table 4-5 Historical Water Production (ccf) ............................................................... 4-7 Table 4-6 Historical Water Consumption (ccf) ......................................................... 4-10 Table 4-7 Historical Per Unit Water Use .................................................................. 4-12 Table 4-8 Historical Average and Peak Demands and Peaking Factors ................... 4-13 Table 4-9 Future Per Unit Water Use (Without Additional Conservation)! ............. 4-15 Table 4-10 Future Per Uhit Water Use (With Additional Conservation)! ................ 4-16 Table 4-11 Forecast Demands (Without Additional Conservation)! ........................ 4-16 Table 4-12 Forecast Demands (With Additional Conservation)! ............................. 4-17 Table 4-13 Historical and Forecast Equivalent Residential Units ............................ 4-18 Table 4-14 Demographic Forecast with Alternative No.4 of the Boeing Redevelopment! ................................................................................................... 4-20 Table 4-15 Forecast Demands for Alternative No.4 ofthe Boeing Redevelopment (Without Additional Conservation!) .......................................... 4-21 Table 4-16 Forecast Demands for Alternative No.4 of the Boeing Redevelopment (With Additional Conservation!) ............................................... 4-21 Table 5-1 Data Reporting Required by DOH ............................................................. 5-2 Table 5-2 Water Conservation Program Measures Recommended by DOH ............. 5-4 Table 5-3 Large Water Users (>100,000 gpd) ............................................................ 5-8 Table 5-4: Conservation Program ............................................................................... 5-9 Table 7-1 Existing Water Rights Status ...................................................................... 7-8 Table 7-2 Forecasted Water Rights Status ................................................................ 7-10 Table 7-3 Existing and Future Requirements of the Safe Drinking Water Act ........ 7-16 Table 8-1 a Required Equalizing and Standby Storage (Existing System Conditions) ............................................................................................................. 8-4 Table 8-1 b Required Equalizing and Standby Storage (Including Credit for Future Source of Supply Capacity at Existing Facilities) ...................................... 8-5 Table 8-2 Available Storage ...................................................................................... 8-10 Renton_Toe .doc ! 017104 v Table of Contents Table 8-3a Comparison of Required and Available Storage (Existing System Conditions) .................................................................................................. : ........ 8-13 Table 8-3b Comparison of Required and Available Storage (Including . Credit for Future Emergency Power and Interties) ........................................... '" 8-14 Table 8-4 Required Storage for the 196 Zone with Boeing Redevelopment Alternative No. 4 .................................................................................................. 8-15 Table 8-5 SerVice Criteria for Required Fire Flow ................................................... 8-21 Table 8-6 Required and Available Fire Flow ........................................................... 8-22 Table 8-7 Recommended Distribution System Improvements ................................. 8-24 Table 9-1 Staff Certification .................................... : .................................................. 9-4 Table 9-2 Operations & Maintenance Activities -Typical Year ............................. 9-10 Table 9-3 Water Department Equipment (2004) ...................................................... 9-13 Table 10-1 6-Year Water System Capital Improvement Program ............................ 10-9 Table 10-2 Future Ca2ital Projects ................................................ ~ ........................ 10-12 Table 11-1 Historical Results of the Operating and Bond Funds (Funds 401 and 451) ..... ;, ...................................................................................................... : .. 11-2 Table 11-2 Projected Water Utility Revenue Bond Is~uances ................................. : 11-6 Table 11-3 Summary of Key Assumptions ............................................................... 11-7 Table 11-4 Projected Sources and Uses of Funds for the Operating and Bond Funds .................................................................................................................... 11-9 Table 11-5 Sources and Uses of Funds for the Construction Fund ........................ 11-10 Table 11-6 Current City of Renton Water Rate Schedule ...................................... 11-11 11-7 Table 11-4 Projected Sources and Uses of Funds for the Operating and Bond Funds .......................................................................................................... 11-9 Table 11-5 Sources and Uses of Funds for the Construction Fund ........................ 11-10 Table 11-6 Current City of Renton Water Rate Schedule ..................................... 11-11 vi Renton _ TOC.doc 1017104 City of Renton Water System Plan List of Figures Figure 2-1 City of Renton Drinking Water Organization ........................................... 2-9 Figure 2-2 Service Area ............................................................................................ 2-11 Figure 2-3 Comprehensive Land Use ....................................................................... 2-l3 Figure 2-4 Zoning ..................................................................................................... 2-15 Figure 4-1 Historical Percent of Non-Revenue Water .............................................. 4-12 Figure 4-2 City's Diurnal Curve ............................................................................... 4-14 Figure 4-3 Average and Peak Day Forecast Demands ............................................. 4-17 Figure 4-4 Average and Peak Day Forecast Demands Including the Boeing Plant Area Redevelopment ................................................................................... 4-22 Figure 5-1: Historical Consumption per Connection ................................................ 5-10 Figure 5-2: Historical Single-Family Residential Consumption per Connection ........................................................................................................... 5-11 Figure 5-3: Distribution of2003 Single-Family Residential Consumption per Connection ..................................................................................................... 5-12 Figure 5-4: Distribution of Aggregate 2003 Single-Family Residential Consumption ........................................................................................................ 5-12 Figure 11-1: Projected Single-Family Residential Monthly Water Rates for 2004 -2015 ......................................................................................................... 11-12 Figure 11-2: Single-Family Residential Monthly Water Rates for 2004 ............... 11-l3 Ren ton _ TOC.doc 1017104 vii AC ADD AWWA BPS ccf CDBG CI CIP DBP DI DOE DOH DOT DWSRF EDNSP EIS EKCCWSP EKCRWA EPA ERU fps FY GIS GMA gpd gpm HAA5 HDPE HMI HPC BUD IDSE ISO O_Acronyrns.doc 1017104 ACRONYMS AND ABBREVIATIONS asbestos cement average day demand American Water Works Association booster pump station 100 cubic feet Community Development Block Grant cast iron Capital Improvement Program disinfection byproduct ductile iron Washington State Department of Ecology Washington State Department of Health Washington State Department of Transportation Drinking Water State Revolving Fund City of Renton Economic Development, Neighborhoods, and Strategic Planning Division environmental impact statement East King County Coordinated Water System Plan East King County Regional Water Association United States Environmental Protection Agency equivalent residential unit feet per second fiscal year geographic information system Washington State Growth Management Act gallons per day gallons per minute halo acetic acids high-density polyethylene human machine interface - heterotrophic plate counts United States Department of Housing and Urban Development initial distribution system evaluation Insurance Services Office ACRONYMS AN.D ABBREVIATIONS LF MCL mg mgd MMS MTU O&M OFM OSHA PCE pCill PDD PHD PLC PMD PRY pSI PSRC PWTF RCW RTU SCADA SEPA SDWA SMART SOC SPU ST TTHM UGA VOC WAC WCCPS WISHA 2 lineal feet maximum contaminant level million gallons million gallons per day Maintenance Mariagement System master telemetry unit operation and maintenance Washington State Office of Financial Management Occupational Safety and Health Administration tetrachloroethylene (perc hi oro ethylene ) picocuries per liter peak day demand \ peak hour demand programmable logic controller peak month demand pressure-reducing valve pounds per square inch Puget Sound Regional Council Public Works Trust Fund Revised Code of Washington remote telemetry unit supervisory control and data acquisition State Environmental Policy Act Safe Drinking Water Act Submerged Monitoring and Recording Transmitter synthetic organic chemicals Seattle Public Utilities steel total trihalomethanes urban growth area volatile organic chemicals Washington Administrative Code Water Conservation Coalition ofPuget Sound Washington Industrial Safety and Health Act O_Acronyms.doc 1017104 Chapter 1 EXECUTIVE SUMMARY AND INTRODUCTION This chapter is an overview of the contents and organization of this water system plan update, the significant improvements that have been completed since the 1998 Plan, and the major recommended improvements identified in this Plan. The purpose of this' Plan is to present a list of recommended facility improvements and policy criteria to be used to construct and maintain a potable municipal water supply system that is "adequate, safe and reliable." This plan is an update of the Water Plan adopted in 1998 and approved in 1999, and complies with WAC 246-290. It is based on current City policy and on regulations and laws adopted by federal and state government and the Renton City Council. 1.1 Planning for Growth The City's service area popUlation and land use trends are major factors affecting water system planning. The service area boundaries have been established through City policy, agreements with adjacent purveyors, and regional GMA planning. The City'S service area boundaries will not change without annexation and any areas that are annexed by Renton will most likely continue to be supplied by the existing water supply systems in those annexed areas. The City continues to experience steady growth within its water system as shown on the figure below. During the past six years similar growth has occurred for residential and non-residential customers within Renton, with average annual increases between 2 and 3 percent. Metered Connections 16,000 15,000 14,000 13,000 12,000 11,000 fO'O fOct> Rl<:l Rl" Rl'" Rl":l Rl'>-Rl'o Rl'O Rl'" Rl'O Rlct> \:)<:l \:)" \:)", \:)":1 ,,0) ,,0) ,,0) ,,0) ,,0) ,,0) ,,0) ,,0) ,,0) ,,0) ,,0) ,,0) ~ ~ ",<:5 ",<:5 The City has sufficient annual water rights to meet its projected 20-year (2025) annual water requirements. The sources of supply will also be marginally able to meet the projected 2025 peak day demands. The estimated existing and 20-year peak hour Renton_Chi Executive Sununary-Intro.doc 1017/04 Chapter 1 demands exceed the City's instantaneous water rights. The City's storage is sufficient to supplement its sources of supply during existing and 2025 peak hour demand periods. However, additional storage or supply in the 196 Zone would help support the peak hour demands in the future. One exception to the City's ability to meet its average and peak day demands is if the highest level of redevelopment proposed in the Boeing Plant area were to occur. The City might have difficulty meeting demands within the next 20 years if additional conservation, (lower average per customer water use) does not occur. If conservation continues to bring average customer water use down, then this high level of redevelopment would not present a ch~:t1lenge to . meeting demands until some time between 2025· and buildout. This high level of growth is one of several alternatives for redevelopment in the Boeing area. In the unlikely event that this level of growth was to occur, the City has several options for meeting future demands, which is discussed in Chapter 7 of this Plan. The City does not anticipate applying for· any new water rights or changes to its existing water rights. In 1997 the City had applied for a change of place for several of its water rights, but since then it has withdrawn those applications. The City's forecasted water rights are the same as its existing water rights. The City does however plan to pursue new interties with adjacent water purveyors. Currently the City is pursuing an intertie with Skyway Water and Sewer District. If it is accepted it would be installed within the next six years. 1.2 Existing System Renton faces significant challenges operating and maintaining its water system. It must protect susceptible sources of supply from contamination, while maintaining a cost effective, independent supply. It must maintain facilities that provide adequate service to its customers while meeting the City's service criteria and policies, as well as state and federal regulations. Renton's water system is expensive to operate and maintenance intensive since pumping is required to move water anywhere in the system. Despite these challenges, the existing water system is very well maintained and provides a high level of service. However, some system deficiencies do exist, such as storage and booster pump station capacity. Existing deficiencies will be resolved through the water system's capital improvement program (CIP) and through a phased construction schedule. Additional emergency power capabilities at its existing booster pump stations will be considered where applicable. In addition to storage and pump station improvements, additional system redundancy and water quality is being addressed through the Maplewood Treatment Plant. The Maplewood Water Treatment Improvements project is scheduled to be completed in June 2005. The project addresses several water quality issues with the Maplewood wellfield that had limited its use. All of the City's facilities are replaced or upgraded as needed to comply with regulatory changes or as components wear out. Renton's ongoing pipe replacement 1-2 Renton_ChI Executive SW1Ul1ary·lntro.doc 1017104 EXECUTIVE SUMMARY AND INTRODUCTION program targets replacement of aging steel and asbestos cement, as well as undersized water mains. 1.3 Futu re System The City plans on using a combination of conservation and storage to meet peak demands in the future ... The conservation program will eventually need to include a rate structure that provides more incentives for conservation during the summer months. As part of its CIP the City is planning to build several new storage facilities and upgrade some of its existing storage facilities to provide additional storage. Planned storage in the 565, 196,435, and 320 zones will be phased during the next 20 years. It is recommended that the City maintain its existing interties and emergency supply agreements with other utilities, and pursue new interties. Renton will continue to supply all customers located within its service area boundaries and will control and administer all municipal services within the service area. 1.4 Improvements The City will prepare for and authorize a CIP program to perform the work listed in the Capital Improvement Plan. The major improvements anticipated within the next 20 years include: • Additional emergency power capacity • Additional booster station capacity • Additional storage capacity Additional unspecified improvements include: replacement of worn facilities, studies to assure future water supply, studies to anticipate treatment requirements, studies to minimize operating costs, and construction of water mains to serve new customers and to provide adequate fire protection to existing customers. The required capital improvements and stricter regulatory standards will require Renton to raise its water rates. Renton's water quality and water supply are influenced by the Cedar River. The management of the river is being supervised by the Cedar River Basin Council. Renton will continue to participate in the basin management program. The character of development in the City is changing, and with it the available funding mechanisms for water system improvements. The City is now beginning to redevelop areas that have previously had other land uses. This opens the door for low-interest public loans. The loan program is currently being used to its maximum potential by the City to minimize the need for rate increases. Renton_ChI Executive Surrnnary-Intro.doc 1017104 R. W. Beck 1-3 Chapter 1 1.5 How to Use This Plan Chapter 2, Water System Description, provides a general overview of the City's water service area, briefly describing the service area characteristics, zoning, land use, , , neighboring jurisdictions, related plans, service area agreements, and general service policies. Chapter 3, Existing System, is a detailed description of the physical facilities of the system. It includes historical intonnation on various facilities including references to project and contract file numbers. It also describes the capacity infonnation for wells, storage facilities, booster pump stations, and interties. The pressure reducing valve (PRV) stations are listed with infonnation on pressure zones served and valve sizes. The pipe inventory is provided with length of pipe in tenns of size, material, age,and pressure zone. System maps and the system hydraulic profile are located in' Appendix F. Chapter 4, Planning Data and Water Demand Forecasts, includes population and demographic trends, historical and existing water use, water demand forecasts, equivalent residential units, and the impacts of redevelopment of the Boeing Plant properties on demands. Chapter 5, Conservation Program, describes the conservation program requirements, reported data, the elements of the City's conservation program, conservation activities selected for implementation, funding for the conservation program, and target water- saving projections. Chapter 6, Policies, Criteria and Standards, covers the City's policies and criteria for supply, service, finance, facilities, and organization. The chapter also describes the City's project review procedures, policies, and requirements for outside parties (e.g., developers) and construction certification and follow-up procedures. The applicable City municipal code is in Appendix D. The City's standard specifications and details are in Appendix O. Chapter 7, Water Supply, Water Rights and Water Quality, addresses the City's water resources, condition, and capacity; the City's water ' rights, interties, the water quality plan, water treatment, state and federal regulatory requirements; a summary of the wellhead protection program, system reliability, long-range water supply planning, and recommended water supply improvements. Copies of the City's water rights documents are contained in Appendix C. The Drinking Water Quality Monitoring Program is in Appendix L. The Wellhead Protection Plan is in Appendix Q. Chapter 8, Water System Analysis, evaluates the present and future adequacy of the system including storage, distribution, and transmission with regard to average day, peak day, peak hour, and fire flow demands. , Chapter 9, Operations and Maintenance, describes the management of the water utility, operator certification, system operation and control, comprehensive monitoring, a summary of the emergency response program, safety procedures, customer complaint response program, record keeping and reporting, and O&M improvements. The Cross Connection Control Plan is contained in Appendix G. 1-4 Renton_Chi Executive Swmnary-Intro,doc 1017104 EXECUTIVE SUMMARY AND INTRODUCTION Chapter 10, Capital Improvement Program, provides a summary of the six-year capital improvement program; planned future capital projects (beyond the six-year CIP planning cycle), and cost estimating methodology. Chapter 11, Financial Program, is a description of the water utility's financial condition and contains a projection of financial results through 2015. It contains historical financial perfonnance, available funding sources, and the water utility financial plan including projected water rates. Renton_ChI Executive Sunnnary-Intro.doc 10/7/04 R. W. Beck 1-5 Chapter 2 WATER SYSTEM DESCRIPTION ( 2.1 Ownership and Management N arne: City of Renton DOH System No.: 71850 L Type of Ownership: Municipal The City of Renton is a City Council-Mayoral form of government. Members of the Council and the Mayor are elected officials. The Mayor is the head of the executive branch of the government and is the chief executive officer of the City government and as such has general supervision over the several departments of the City and over all its interests. Figure 2-1, City of Renton Drinking Water Organization, shows the organization of the drinking water utility. With the exception of the billing function the operation of the utility falls under the supervision of the Administrator of the Planning! BuildinglPublic Works Department, Mr. Gregg Zimmerman. Some of the City offices that provide support to the operation of the Drinking Water Utility are not shown on the organizational chart. For example, the Human ResourceslRisk Management Department provides hiring, benefits, insurance, some types of training and other support to the utility; the Information Services Division provides computer, networking and telecommunications support; and the City Attorney's Office provides legal support. Budgets are formulated by the departments and are presented by the Mayor to the City Council for approval. Expenditures for items in a Council-approved budget are approved by the Administrator, the Mayor or the Council depending upon the amount of expenditure. 2.2 System Background 2.2.1 History of Water System Development and Growth The history of the City's system is well documented in the previous Water System Plans prepared for the City by CH2M Hill in 1965, by RH2 Engineering in 1983 and 1990, and by the City and RH2 Engineering in 1998. The detailed information presented in those documents is not repeated in this document. F or those interested, the 1965, 1983, 1990, and 1998 Water System Plans are available from the City. However, some of the history of the system is included in this plan for the sake of convemence. The City of Renton's Water System provides service to more than 50,000 customers. In addition, the City supplies water on a wholesale basis to Skyway Water and Sewer District (formerly Lakeridge Bryn-Mawr Water District) through a single metered Renton _ Ch2 System Description.doc 10/7104 Chapter 2 connection. The water service area (shown in Figure 1, Appendix F) includes service to some parts of unincorporated King County. Chapter 3 provides a more detailed description of the development of the water system by facility. 2.2.2 Geography The City of Renton is located within King County at the southeastern end of Lake Washington. 1-405 runs through the middle of the service area, from its western boundary, up through its northern boundary. The Cedar River divides the City's service area between the north and south. Its water system provides service to an area of approximately 16 square miles that is largely coincident with the city limits. The water distribution system serves the valley floors and parts of five surrounding hills: West Hill, the Highlands, Scenic Hill (also known as Renton Hill), Talbot Hill, and Rolling Hills. The City currently serves customers within an elevation range of 11 feet to 473 feet. This range creates a need for at least four separate pressure zones. However, physical barriers such as hills and valleys often prevent the extension of a pressure zone from one location to another. As a result of Renton's topography and geography, the City has 14 hydraulically distinct pressure zones. . 2.2.3 Existing Service Area The existing water service area is shown in Figure 1, Existing Water System and in Figure 3, Service Area/Adjacent Systems, in Appendix F. It is ~nlikely that Renton's existing water service area will change very much in the future because of its geography and the fact that all areas around its service area are currently served by other water utilities 2.2.4 Future Service Area The only possible changes in Renton's water service area in the future are on its western boundary. There is one small area that may be served by Renton in the future as shown on Figure 2-2 and by the "Future Renton Water Service Area [Upon Annexation]" on Figure 3 in Appendix F. The future annexation area is described in the Skyway's water system plan and the Service Area Boundary Agreement between Skyway Water and Sewer District and the City of Renton. The area would only become part of the City'S water service area upon annexation into the City. 2.2.5 Zoning and Land Use Figures 2-3 and 2-4 show Renton's comprehensive land use and zoning designation, respectively, as provided by the City'S Economic Development, Neighborhoods and Strategic Planning (EDNSP) Division. The land use and zoning shown here are consistent with zoning and land use used in the City's General Comprehensive Plan, and as a result, the requirements of the GMA. These designations are also consistent with planning documents of other jurisdictions such as the King County Comprehensive Land Use Plan. King County's land use is shown on its land use map included in Appendix F. 2-2 Renton_Ch2 System Description.doc 1017104 WATER SYSTEM DESCRIPTION The City's water service area includes a majority of the incorporated area of the City as well as some unincorporated King County areas that may be annexed in the future. Other areas that are currently served by other water utilities or by wholesale water purchased from other utilities include an area to the west of the.City that is currently served by Skyway Water and Sewer District and the Boeing Plant Area on the west side of the City. The Boeing Plant Area is within Renton's service area and is served by the City partially with wholesale water purchased from Seattle. The remainder of the Boeing Plant Area is served with water from Renton's supply. Figure 2-2 shows the area served by Skyway that may be annexed by the City in the future and the Boeing Plant Area that may be served solely from Renton's sources of supply in the future. Other than the above mentioned areas, Renton's water service area is bordered by adjacent systems. Therefore, much of the growth of the City's water service area is expected to come from redevelopment and development of vacant land currently within its service area. The Water System Plan update specifically focuses on areas that may experience significant redevelopment in the future: the Renton Highlands and the Boeing Plant Area. Redevelopment within the City is expected to be a mix of residential and non- residential growth. Residential growth is expected to be at a higher density than what has historically occurred due to higher growth of multifamily units, and single-family lots that tend to be smaller than the typical single-family lots developed in the past. 2.2.6 Neighboring and Adjacent Purveyors Renton's water service area is bordered by eight adjacent water systems: Skyway Water and Sewer District, City of Tukwila, City of Kent, Soos Creek Water and Sewer District, Cedar River Water and Sewer District, Water District No. 90, and Coal Creek Utility District. Figure 3 in Appendix F shows Renton's water service area and its neighboring water utilities. 2.3 Related Plans The following plans are related to the City of Renton Water System Plan: • King County Comprehensive Plan (2000) • East King County Coordinated Water System Plan (updated in 1996) • Skyway Water & Sewer District Water System Plan (updated in 2004) • City of Renton Water System Plan (1998) • City of Renton Comprehensive Plan-includes land use element (updated in 2004) • City of Renton Storm Water Plan (1995) • City of Renton Wastewater Plan (updated in 1999) • Seattle Public Utilities Water System Plan (updated in 2001) • -City of Tukwila Comprehensive Water Plan (updated in 1999) Renton_ Ch2 System Description.doc 1017104 2-3 Chapter 2, • City of Kent Comprehensive Water System Plan (being updated-200212004 draft) • Soos Creek Water and Sewer District Water Comprehensive Plan (updated in 2004) • Cedar River Water and Sewer District Water System Plan (updated in 2000) • King County Water District No. 90 Comprehensive Water System Plan (updated in 1?98) • Coal Creek Utility District Water System Plan (updated in 2004) The City is not aware of any inconsistencies between this plan and, the plans listed above. 2.4Servi~e Area Agreements Copies of service area agreements are included in Appendix B, Agreements. The following is a list of the service area agreements that the City has with adjacent purveyors: • Agreement between the City of Renton and the Skyway Water and Sewer District for the Establishment of Water and Sewer Service Boundaries (CAG-03-197), December 31,200'3. • Seattle Agreements (through 1998): • City of Seattle Ordinance 119202, October 22, 1998. • Interlocal Agreement between the City of Seattle and the City of Renton for use of certain Renton right-of-way by Seattle and use of certain Seattle owned property by Renton, November 9, 1998. • Water Purveyor Contract between the City of Seattle and the City of Renton for the Sale of Wholesale Water by Seattle to Renton, November 1, 1998. • Lease Agreement No. 327-815 (18-23-5 SE) between the City of Seattle and the City of Renton, November 9, 1998. • Agreement for the Transfer of Water Service and Provision of Primary Fire Service between the City of Seattle and the City of Renton, November 9, 1998. • City of Renton Ordinance 1544, Granting Franchise to City of Seattle for 36-inch supply line in 132nd Avenue SE, May 1, 1956. • Agreement for he Sale of Water in an Emergency by the City of Renton to the City of Renton (CAG-02-123), November 30,2002. • Agreement between the City of Renton and the Cedar River Water and Sewer District for the Establishment of Service Boundaries (CAG-99-014), February 8, 1999. 2 -4 Renton _ Ch2 System Description.doc 1017104 WATER SYSTEM DESCRIPTION • Agreement for Establishing Utility Service Boundaries as Identified by the East I9ng County Coordinated Water System Plan (CAG-97-100), June 12, 1997. • Agreement for Establishing Utility Service Boundaries as Identified by the East King County Coordinated Water System Plan (CAG-075-89), October 18, 1989. • Agreement for Establishing Water Service Boundaries as Identified by the Skyway Coordinated Water System Plan (CAG-076-89), October 18, 1989. • City of Renton and Soos Creek Water and Sewer District Interlocal Agreement for the Establishment of Service Boundaries (CAG-97-164), October 10, 1997 [Amendment] . • City of Renton and Soos Creek Water and Sewer District Agreement for the Transfer of Facilities and for the Establishment of Service Boundaries (CAG-083- 91), August 6, 1991. • City of Renton and Bryn MaWr -Lakeridge Water and Sewer District -Contract for Water Supply and Joint Storage and Transmission (CAG-93-097), January 1, 1993 [Bryn Mawr -Lakeridge Water and Sewer District is now Skyway Water and Sewer District]. • Agreement for the Emergency Sale of Water between the City of Renton and the City of Tukwila (CAG-95-034), March 21, 1995. - • Agreement for the Emergency Sale of Water between the City of Renton and the City of Kent (CAG-95-071), May 17, 1995. 2.5 Service Area Policies The following is a summary of many of the City's water service policies. Chapter 6 of this Water System Plan includes additional information about the City's water service policies. Appendix D contains excerpts from Renton's Municipal Code that are applicable to the water utility. Wholesaling Water The City has one long-term wholesale customer, the Skyway Water and Sewer District, and has no plans to sell water wholesale on a long term basis to any other purveyor. The sale of water on a short-term basis would be handled on a case-by-case basis._ Wheeling Water The City does not currently wheel water. The City will consider any possible situations of wheeling water on a case-by-case basis. Water chemistry compatibility and its effects on water quality, including aesthetics such as taste and odor would be a primary consideration. Renton_Chl System Description.doc 1017104 2-5 Chapter 2 Annexation The City uses its existing service area agreements to detennine areas where water service will be provided. Therefore, City annexations do not affect the provision of water service. Direct Connection and Satellite I Remote Systems Satellite and remote systems are not allowed within the City's water service area. Developments must connect to the City's water system if the development lies within the City's water service area. Surcharge for Outside Customers The City charges a surcharge for connections to the City's water distribution system if the property lies outside the City limits. The surcharge is 50% for the monthly base charge and the consumption charge. The surcharge does not affect system growth. Additional detail about this policy is described in Chapter 6. Formulation of Local Improvement Districts Outside Legal Boundaries The City's service area is surrounded by the service areas of other water purveyors. Therefore, the City does not have to address the issue of local improvement districts outside of legal boundaries. Urban Growth Area The City's urban growth area (UGA) boundary extends beyond Renton's city limits and water service area boundary. Other water purveyors serve areas outside of the City'S water service area. Due in large part to the geography of the City of Renton, it is unlikely that its water service area would be extended much further beyond the existing water service area or what is shown in Figure 2-3. Any new areas within the City's UGA that are annexed by Renton would likely continue to be served by the other utilities currently serving them. Any new development within the Renton's water service area is expected to pay for extensions. Late-comer Agreements The City allows late-comer agreements. Oversizing The City will provide funds to install larger facilities so future developments may be served. In the case of mains, in general, the City will pay the difference in material costs between the currently required main size and the larger main size. Extensions System extensions are allowed and are paid for by the developer. In general, extensions are required for the full frontage of the property served. For residential areas the minimum main size is usually 8-inch-diameter. In cases where an extension 2-6 Renton_Ch2 System Description.doc 1017104 WATER SYSTEM DESCRIPTION will be a dead-end with low probability of being further extended, smaller mains are allowed for water quality reasons provided fire flow requirements can be met elsewhere. The minimum main size is usually 12-inch diameter for commercial and industrial areas with fire flow requirements dictating the ultimate size. Main extensions as well as fire hydrant and meter additions trigger system development charges. These charges are described in the Renton Municipal Code and can be viewed online at Municipal Research & Services Center at http://www.mrsc.org. Chapter 6 has additional information about the City's policies related to water system extensions. Renton _ Ch2 System Description.doc 1017/04 2-7 • • Danny Hribal MS Worker III Water Maintenance Services FIGURE 2-1 City of Renton Drinking Water Organization Nenita Ching Principal Financial & Administrative Analyst PBPW Hema Thanedar Office Assistant III PBPW I George Stahl Supervisor Water Maintenance Services Dan Scottie Supervisor Utility Maintenance Vacant-MS Worker MS Worker III Water Maintenance Services Bob Sagara Lead Worker Water Maintenance Services Gary Smith MS Worker III Water Maintenance Services Sean Campbell MS Worker III Water Maintenance Services Patrick Pierson MS Worker II Water Maintenance Services Michael Schuld ~ MS Worker III Water Maintenance Services Joshua O'Neill ~ MS Worker II Water Maintenance Services Federico Enriquez _ Utility Locator Water Maintenance Services Craig Pray I--MS Worker III Water Maintenance Services Charles Durbin Operator Water Quality I Treatment Plant Ron Druce Operator Water Quality I Treatment Plant Robert Purdy Elec. Technician Water Utility Maintenance Gregg Seegmiller Eric Schwind _ Lead Worker MS Worker III Water Maintenancel, Water Maintenance Services I I Services Gregg Zimmerman, P.E. Administrator Planning, Building & Public Works Mike Stenhouse Director Maintenance Services Division Ray Sled Manager Water Maintenance I Sandra Hock -Water Meter Reader Water Maintenance Douglas Allen -Water Meter Reader Water Maintenance Vacant-Meter Reader '----Water Meter Reader Water Maintenance City Council Kathy Keolker-Wheeler Mayor I Jay Covington Chief Administrative Officer I Lys Homsby, P.E. Director Utility Systems Division I Abdoul Gafour Supervisor Water Utility Engineering Tom Malphrus, P.E. CIP Project Manager Water Utility Engineering Carolyn Boatsman Aquifer I Wellhead Protection Manager Water Utility Engineering Rick Moreno CIP Project Manager Water Utility Engineering Laszlo Csuha Cross Connection Control Manager Water Utility Engineering Helen Weagraff Public Education Manager Water Utility Engineering J.D. Wilson, P.E. CIP Project Manager I GIS I Data Base Manager Water Utility Engineering Neil Watts, P.E. Director Development Services Division Kayren Kittrick Supervisor Development Engineering Michael Dotson Project Manager Plan Review -- Mark Wetherbee Construction Inspector 111--- Development Services Juliana Fries, P.E. Janet lilian Project Manager Plan Review Stephen Pinkham Lead Construction Inspector Development Services Dan Thompson Project Manager Plan Review f-e-Construction Inspector II Development Services Tom Main Construction Inspector II -- Development Services Ron McPhee Ameta Henniger Project Manager Plan Review Pat Miller Construction Inspector 111--1--Construction Inspector I Development Services Development Services Rick Kokko I-Services Representative Development Services Larry Meckling Building Official I Phillip Hudgens Plumbing Inspector Building Victoria Runkle Administrator Finance & Information Services I Elaine Gregory Director Fiscal Services I Elloyce Sumpter Utility Accounts Supervisor Utility Billing Carol Bumett Accounting Assistant IV Utility Billing Penny Merrill Accounting Assistant IV Utility Billing Terri Karpavicus Accounting Assistant IV Utility Billing Kent R:ISeatijel1 1 -00880-10000-0001 City of Renton Water System PlanlGISlmapfileslfigure_ 4_2.mxd Lake Washington --.... ,,, ~~ ... , --'----'----._---- Panrher-------- Lake ----;------.- , , -, -, " , • Unincorporated King County I L I I \~ ~I '--~,~ -~\..-=~--,-:-c:-:--==--"-~--~---~~ ':/:> ~. / ...... ~ "\ ill. • I.: .. .. . . - -I. /.,-)-,-:::. ... : ~.=== ~ .-.--.• --.-.-.-. .-.~­• • -. -. • • • I'· •.• -.--... -... ~!!i ncorporated King County \ Lake Youngs '-' ~'---...,/ . ~---.-----' .. ' ... . ~.-'/-"""""'--------------~ Renlnn M'Ple .-.I',~ • _. • '/'~-""'l < • • I' • • Lake • Des/ire • '" . ~. -.-• • • • . 1; Spring Lake Issaquah \. \ ~ l , \ --. Legend c c c Current Service Area ~ Future Renton Service Area 0 Boeing Site Area ••• Urban Growth Boundary ~ Renton City Limits City Limits ~ Water Body N A ___ ===, Miles o 0.5 1 Figure 2-2 Service Area Water System Plan Renton, Washington > « x -----~ Kent R:ISeatUelll-00880-10000-OOO1 City of Renton Water System PlanlGISlmapfileslfigure_ 4_'-mxd Lake Washington ;-« Pant/ier--------- Lake __ ---~- --1------------- S E 20811,-:51 Unincorporated King County S E 1231 h S 1 \ ~­==~===1----==:~==~---~-~---~-=------------~~~<-~ ,: ': ')\~ '\' (-~ • • -=-~ • • --. Lake _J,J!!i ncorporated King County Youngs ,~----. ------------. ----/ >-------y "1-----------/ 'l\'~-~ ) \ ' Spring i Lake \, ' " ! "',~ '""". "'-., '- I ~ jl) II; 'tl: Legend Comprehensive Land Use Designations D Residential Rural D Residential Single Family D Residential Options D Residential Planned Neighboorhood D Residential Multi-Family Infill D Center Neighborhood D Center Suburban D Center Downtown D Center Office Residential D Center Institution D Center Villiage D Employment Area -Commercial _ Employment Area -Office Figure 2-3 Comprehensive Land Use Water System Plan Renton, Washington --SeaTac R:ISeatUeI11-OO880-10000-0001 City of Renton Water System PlanIGIS\mapfileslfigure_ 4_2.mxd Lake . Washington Panther Lake , • • 1 2 7 t h' PIS E " ., • • • · .1·· ••••• ---~. ,--,,_'r "., .. : • =-~.-.--.--~'.~-.-.-•. -.! • • --. ~~ • • -~ .. •• iii-I -~'ii---- JI __ J.jQ,incorporated Lake Youngs '. King County -'l.--...J.-=----t---~~~_~_+_-----,.._------- Unincorporated King County --.-) ( ---- • • • Spring: , .. ' ..... . -.. •• II' • • Laki! \ , '~ t, , / "'\-' ~ \ ',<' ',/~J '\. -;: Legend Zoning D Resource Conservation Residential 1 dulac D Residential 5 dulac c::J Residential 8 dulac ~ Residential Manufactured Home D Residential 1 0 dulac D Residential 14 dulac -Residential Multi-Family Infill ~ Residential Multi-Family Neighborhood Center D Residential Multi-Family Suburban Center D Residential Multi-Family Urban Center -RM-T D Center Neighborhood Center Suburban D Center Downtown D Center Office Residential D Commercial Arterial D Commercial Office ~ Convenience Commercial Industrial -Heavy D Industrial -Medium Industrial -Light c c c Current Service Area • • • Urban Growth Boundary """"""" Renton City Limits City Limits N Water Body A Miles 0 0,5 1 Figure 2-4 Zoning Water System Plan Renton. Washington IIBI 3.1 System Overview Chapter 3 EXISTING SYSTEM All water consumed in Renton's service area must pass through a well or spring and potentially several pump stations. Because of this, the City's water system is maintenance-intensive, with facilities for pumping, water quality control, and emergency power generation. Eight wells and one spring are used for normal supply (RW-1, RW-2, RW-3, PW-8, PW-9, PW-ll, PW-12, PW-17, and Springbrook Springs). One well, EW-3, is used for emergency back-up supply only. PW-5A is used only for summer peak demands. Wells RW-l, RW-2, RW-3, PW-8, PW-9, and EW-3 pump from the Cedar River Delta Aquifer and are referred to as the downtown wells. Wells PW-ll, PW-12, and PW -17 pump from a deep aquifer underlying the Maplewood Golf Course and are referred to as the Maplewood wells. Well PW -5A pumps from a deep aquifer in the Kennydale area. Pumping is accomplished by nine on-line booster pump stations and three standby booster stations that are located throughout the City. The water from the downtown wells and the artesian spring is first pumped into the lowest pressure zone in the valley floor, and then pumped up to West Hill, the Highlands, Renton Hill, Talbot Hill, and Rolling Hills for consumption. Water from the Maplewood wells is pumped from a post-treatment c1earwell into the Highlands and Rolling Hills areas. Water from PW- 5A is pumped into the Highlands 435 Zone. Two of the standby pump stations, two pressure-reducing valves (PRVs), and one metered connection supply water to the Rolling Hills/Talbot Hill service area from the Seattle Cedar RiverlBow Lake transmission pipelines during emergencies. One emergency intertie can supply water to the Earlington 370 Pressure Zone from the Seattle Cedar RiverlBow Lake transmission pipeline. Currently there are nine reservoirs in the system, strategically located to provide adequate equalizing and fire flow reserves. PRVs are used to supply lower pressure zones from higher pressure zones that contain water storage reservoirs. Areas within the City's service area may have similar elevations, but can not be served as part of the same pressure zone due to the geography. As an example, the pressure zones in the Highlands area have not been extended across Maple Valley into the Renton Scenic Hill or Talbot Hill areas, even though the elevations served on these two hills are similar. The Cedar River Valley has provided a physical barrier that has prec1udedjoining of hydraulically similar pressure zones. As a result of these physical barriers and the elevation range served, 14 pressure zones are necessary, as shown in Table 3-1. Renton_Ch3 Existing System. doc 1017104 Chapter 3 Table 3-1 Pressure Zones by Geographical Area Pressure Zone 196 320 , 435, and 565 300, 370, and 495 370 and 490 300E,300VV, 350, 395,490, and 590 Serves Valley Floor Highlands and Kennydale areas West Hill & Earlington areas Scenic Hill Rolling Hills and Talbot Hill All of the pressure zones are hydraulically interrelated with the lowest pressure zone, the 196 Zone, in the valley floor. Additionally, the Rolling Hills and Highlands areas can be supplied from the Maplewood wellfield (79 Pressure Zone, where 79 is the overflow elevation of c1earwell). All supply to the system not consumed in the downtown 196 Pressure Zone, is pumped to higher pressure zones. . Figure 2 (in Appendix F) shows a hydraulic profile of the existing system and demonstrates how water moves vertically through the water system. Figure 1 (in Appendix F) shows how water moves horizontally through the system. It is desirable to have two or more connections (or supply points) within each pressure zone that allows water to move upward to a higher pressure zone or downward to a lower pressure zone. This maximizes system reliability by providing multiple paths or routes that the water can take when moving between pressure zones. 3.2 Water System Description Numerous changes to the City's water system have occurred since the completion of the 1998 Water System Plan. The major changes are summarized in the following sections. 3.2.1 Source of Supply Renton has nine supply sources that supply water from three. aquifers and one artesian spring. Each of the supply sources are described in detail below, including development and improvements to each source. Table 3-2 lists the active supply sources and the rated capacity of each. It does not include the inactive source, Well 4, or the Seattle interties. Springbrook Springs (DOH SourceS05) Located at the south end of the City, Springbrook Springs is an artesian spring and was first used in 1909. The infiltration gallery was upgraded and asanitary seal was added in 1976 (project number W-0422). Chlorination was added in 1976 (W-0423). The chlorination building is located approximately 300 yards from the infiltration gallery and is adjacent to the transmission main. Fluoridation was added in 1986 (W- 0851) via an addition to the chlorination building. Corrosion control treatment to comply with the Lead & Copper Rule (PH adjustment with sodium hydroxide) was 3-2 Renton _ Ch3 Existing System doc 1017104 EXISTING SYSTEM added in 1999 (W-2238). A sodium hydroxide storage building was added as part of this proj ect. The City has acquired ownership of a significant amount of property to fonn a watershed directly surrounding the Spring. A chain link fence has been erected around the property to restrict access to and activities within the watershed. The last segment of chain link fence was installed in 2002 (W -2980). The Spring provides direct service to the Downtown 196 Pressure Zone. The level in the South Talbot Reservoir provides the only control of the discharge from the Spring. The Spring facility is a free flowing facility with no control of its discharge rate. The flow from the Spring into the distribution system varies from 500 gpm to 1,200 gpm and varies with the demand in the 196 Pressure Zone (elevation of the water in the North Talbot Reservoir). The flow meter is located inside the chemical treatment building. Table 3·2 On·line Supply Sources· Installed Capacities Name Springbrook Well RW-1 Well RW-2 Well RW-3 Well RW-5A Well PW-8 Well PW-9 Well PW-11 Well PW-12 Well PW-17 TOTAL· Pumping Rate (gpm) 1,200 2,200 2,200 2,200 1,400 3,500 1,200 2,500 1,500 1,500 19,400 Wells 1, 2, and 3 (DOH Source S10 -well field) Pumping Rate (mgd) 1.73 3.17 3.17 3.17 2.02 5.04 1.73 3.60 2.16 2.16 27.94 PW-1 & PW-2 were originally drilled in 1942 and were replaced by RW-1 (DOH Source SOl) and RW-2 (DOH Source S02) in 1988 (W-0880). PW-3 was originally drilled in 1959 and the well head constructed in 1962 (W-0119) and was replaced by RW-3 «(DOH Source S03) (W-0880) which is collocated with RW-1 and RW-2 in a well house in Liberty Park adjacent to Houser Way N and the Cedar River. The water right for PW-3 was transferred to RW:"3. Project W-0880 included chlorination and fluoridation. Corrosion control treatment to comply with the Lead & Copper Rule (pH adjustment with sodium hydroxide) was added in 1999 (W-2238). A manual transfer switch with Kirk-Key safety system was added in 1999 to allow the well house to be powered by a City-owned portable generator (W-2784). Primary disinfection with continuous chlorine concentration monitoring-using a loop of large diameter pipe in Liberty Park-was added to the three wells in 2003 (W-2893). Each well is Renton_Ch3 Existing System.doc 1017104 3-3 Chapter 3 individually metered and is controlled by the elevation in North Talbot Reservoir. The meters are located inside the well house. The wells are pumped into the 196 Pressure Zone. WellS (DOH Source 507) PW-8 was drilled in 1968 and the wellhead constructed in 1969 (W-03lO). The facility is located in Cedar River Park adjacent to 1-405. Project W-031O)ncluded chlorination. Fluoridation was added in 1986 (W -0851). Corrosion control treatment to comply with the Lead and Copper Rule (PH adjustment with sodium hydroxide) was added in 1999 (W-2238). The electrical system was rehabi'litated in 1990 (W- 1020). The rehab included stubbing out a 4-inch electrical conduit from the main panel to the west side of the building for a future emergency power feed (refer to WTR-13-0035, Emergency Power System Study 1989). This is a metered source and ' is controlled by the elevation in the North Talbot Reservoir. The meter is located in a vault adjacent to the well house. The well is pumped into the 196 Pressure Zone. Well 9 (DOH Source 509) , PW-9 was drilled in 1984 (W-0665) and the wellhead constru~ted in 1985 (W-0718). It is located in Cedar River Park near where 1-405 crosses SR 169. ,Project W-0718 included chlorination and stubbing out a 3'1'2-inch electrical conduit from the main panel to the west side of the building for a future emergency power feed (refer to 'WTR-13-0035, Emergency Power System Study 1989). Fluoridation was added in 1986 (W -0851). Corrosion control treatment to comply with the Lead and Copper Rule (PH adjustment with sodium hydroxide) was added in 1999 (W-2238). This is a metered source and is controlled by the elevation in the North Talbot Reservoir. The meter is located in a vault adjacent to the well house. The well is pumped into the 196 Pressure Zone. Emergency Well 3 (DOH Source 516) EW-3R was drilled in 1999 (W-2315) and the wellhead constructed in 2003 (W-2915). It is located in Liberty Park near the intersection of Houser Way N and Bronson Way N. This well replaced EW -3. EW -3 was the original Well PW -3. W -2315 included chlorination, fluoridation, and treatment for corrosion control. ,The project also included switchgear and a receptacle to feed power from a portable generator set. This is a metered source and is controlled by the elevation in the North Talbot Reservoir. The well is pumped into the 196 Pressure Zone. Well 5 (DOH Source 504) PW-5A was drilled in 1988 (CAG-070-86) and the wellhead constructed in 1991 (W- 0888). The well is located on the northwest comer of Jones Avenue NE and NE 24th Street. PW-5A replaced PW-5 (formerly Kennydale Well No.1), which had severe sanding problems and could not be successfully redeveloped. The original PW-5 was drilled in 1953. Project W-0888 included chlorination and fluoridation as well as switchgear and a receptacle to feed power from a portable generator set. Treatment for corrosion control is not necessary as the pH of the raw water is about 8.0. This source can be used for summer peaking supply but has taste and odor problems. The 3-4 Renton _ Ch3 Existing System,doc 10/7/04 EXISTING SYSTEM raw water, like that of the Maplewood well field, contains hydrogen sulfide, iron, manganese, and ammonia. At some time in the future additional treatment will be added to address these problems. This is a metered source and is controlled by the elevation of the Highlands 435 Reservoirs. The meter is located in a vault 45 feet to the east of the well house. The well is pumped into the Highlands 435 Pressure Zone. Maplewood Wellfield (DOH Source 513) Located at Maplewood Golf Course on Maple Valley Highway, the wellfield consists of three wells: PW-11 (DOH Source Sl1), PW-12 (DOH Source SI5), and PW-17 (DOH Source SI2). PW-11 and PW-17 were drilled in 1989 (CAG-88-030) and the wellheads constructed in 1991 (W-0850 and W-1027). PW-12 was drilled in 1994 (WTR-13-042) and the wellhead constructed in 1998 (W-2279). Treatment for the water from these wells is provided at the Maplewood Treatment and Booster Pump Station Facility, which was constructed in 1995 (W-I052). The raw water contains hydrogen sulfide, ammonia, and manganese, and a small amount of iron. The original strategy for treating the water was to remove hydrogen sulfide using aeration and to. keep the manganese in solution using ortho-polyphosphate (sequestering) as well as chlorinating and fluoridating the water. Treatment for corrosion control is not necessary as the pH of the raw water is about 8.0. The presence of ammonia was discovered after the plant went on line. The sequestering did not work and the water utility received numerous complaints regarding staining and taste and odor. The method used for secondary disinfection was changed from chlorination to chloramination, which limited the areas in which the water could be used in the distribution system due to problems with mixing the Maplewood water with the water from the other sources. In January 2002 the City shut the wellfield down and began design and construction efforts to replace the treatment. A treatment pilot plant study had been conducted in June and July of 2001. The resulting design consists of: (1) converting hydrogen sulfide to sulfate by adding oxygen from air and reacting on granular activated carbon filters; (2) removing manganese with green sand filters; and (3) converting ammonia to nitrogen gas by adding chlorine and reacting in a contact basin. Construction (W- 2953) of a new treatment building began in October 2003 and is scheduled to be completed in June 2005. The project includes changing the method of chlorination from chlorine gas to sodium hypochlorite liquid. Fluoridation will be accomplished by using existing plant. The project also includes manual switchgear with Kirk-Key safety system to allow powering one 1,500 gpm well, one 1,500 gpm low-lift pump, and one 1,500 gpm high- lift pump and associated treatment equipment with a City-owned portable generator. Each well is individually metered. The meters will be located in the new treatment building. The wells are controlled by either the elevation in the Highlands 565 Reservoir or the Rolling Hills 590 and 490 Reservoirs (see discussion of Rolling Hills Booster Pump Station-in particular the back-pressure sustaining valves regulating the flow between the 490 and 590 pressure zones). The treated water will be pumped to the clearwell located at the existing Maplewood TreatmentIBooster Pump Station facility. From the c1earwell the water will be pumped to either the Highlands 565 Pressure Zone or the Rolling Hills 590 Pressure Zone. Renton _ Ch3 Existing System.doc 10/7104 3-5 Chapter 3 Well 4 (DOH Source 506) Well 4 was drilled in 1942 for the Northwest Water Company. The well was removed in 1962. The City has an active water right of 170 gpm for the well (GWC 884-D). Seattle Interties (DOH Source 508) Currently there are eight interties and one emergency intertie with Seattle Public Utilities (SPU). Two of the interties are used to supply water to the Boeing Renton Plant via two 10-inch mains. Prior to 2001 Seattle sold this water directly to Boeing. In 2001, in accordance with a revised franchise agreement between Seattle and Renton, the metering points for the two 10-inch service lines were moved closer to the SPU Cedar River Pipelines (W -2890), the source, and Renton began purchasing the water wholesale from Seattle and selling the water to Boeing. The emergency intertie was constructed in 1994 (W-2071) to supply fire fighting water to the Boeing Longacres site. This is an 8-inch connect,ion to the 60-inch SPU Bow Lake transmission main at PRY Station 24. The remaining six interties areused for summer peaking supply and emergency supply. These are SPU Station Nos. 33,34,36,37,38, and 39 and are further described in Table 3-3, Interties. Table 3·3 Interties Meter Other Flow Name Size Location System Direction TIffany Park 10"/8" Kirkland Av SE & SE 158th St Seattle Two-way SWD Sta. #39 Fred Nelson 8" Benson Rd S & S 26th St Seattle To Renton SWD Sta. #34 PRV28 6" Shattuck Av S & S 23rd Seattle To Renton SWD Sta. #33 PRV35 6" S 134th St & Thomas Av S Seattle To Renton SWD Sta. #38 PRV6 3"/3" Beacon Wy S near Renton Av S Seattle To Renton SWD Sta. #37 SWD Sta. #36 6" Jones Av S & S 7th St Seattle To Renton Boeing Plant Meter -East 10" Logan Av S & S 2nd St Seattle To Renton Boeing Plant Boeing Plant Meter -West 10" Logan Av S & S 2nd St Seattle To Renton Boeing Plant WD 90/Renton 8" Union Av NE & NE 10th WD90 To WD 90 Skyway Wholesale 10" 80th Av S & S 116th St Skyway To Skyway Boeing CSTC Fire1 12" SW 23rd St -300 ft west of Oakesdale Seattle To Renton Renton/Seattle 1 10" Union Av SE & SE 2nd PI Seattle To Seattle Tukwila 8" West Valley & extension of SW 34th St Tukwila Two-way PRV 232 Kent 10" SE 43rd St & Lind Av SW Kent Two-way PRV 252 1. Emergency Intertie 2. Emergency Intertie can indude peak demands for a short duration. 3-6 Renton _ CbJ Eltisting System.doc 10/7/04 Maximum Flowrate 1,050 925 700 700 320 700 1,950 1,950 1,250 1,950 2,800 1,250 2,400 1,900 EXISTING SYSTEM 3.2.2 Storage Water storage within the distribution system provides for operational, equalizing,. firefighting, and standby storage. Storage is provided by reservoirs and elevated tanks located within the distribution system. The City currently operates eight distribution system storage facilities and an operational storage/equalizing/detention reservoir at the Maplewood Treatment Plant. This section provides a description of the function and condition of each of these facilities.· Currently none of the reservoITs have flow meters. Table 3-4 lists all of the City's existing storage facilities and summarizes the physical characteristics. The recommended sizing and location of future storage facilities are presented in Chapter 10, Capital Improvement Program. North Talbot Reservoir (196 Pressure Zone; Overflow elevation = 199.58 feet NAVD 1988) Located at Talbot Hill Park near the intersection of Talbot Road S and S 19th Street, this 5 mg cast-in-place reinforced concrete underground reservoir was constructed in 1976 (W-0419) and replaced two uncovered 0.5-mg reservoirs that occupied the same site. In 1989 CH2M Hill visually inspected the reservoir and noted the following: the joint sealant was in good condition; leaching of the concrete was observed; the leaching of the columns was slightly greater than observed on comparable structures. CH2M Hill made the following recommendations: drain and inspect the.reservoir every two to five years; replace the ladder and overflow pipe supports with stainless steel; install galvanic cathodic protection anodes to protect metal associated with the intake piping, wash-down piping, and other metals submerged in the reservoir. Mount Olivet Reservoir (196 Pressure Zone; Overflow elevation = 184.1 feet NAVD 1988) Located near the intersection of NE 3rd Street and Bronson Way NE, this 3 mg aboveground welded steel tank was constructed in 1954 (W-1141). CH2M Hill has periodically inspected it over the years: 1969, 1977, 1982, 1985, 1989, and 1997. In 1971 an impressed current cathodic protection system was installed (W-0371). The exterior was recoated in 1978 (W-0476). The interior was recoated in 1991 (W-1035). The exterior was recoated and the cathodic protection system replaced in 1999 (W- 2787). A future CIP project is to raise the overflow elevation of this reservoir to 199 feet. Highlands 435 Reservoir -1.5 mg (435 Pressure Zone; Overflow elevation = 440.3 feet NAVD 1988) Located at the Highlands reservoir site east of the intersection of NE 12th Street and Monroe Avenue NE, this reservoir was originally constructed as an uncovered reservoir during World War II (circa 1942)--concrete-lined, rectangular in shape, partially in-ground and partially above ground of bermed excavated material. In 1966 the reservoir was covered (W -0098). In 1986 the beams for the cover were sand blasted and painted. In 1987 the roof beams were inspected for cracks; none were found (W -0909). In 2000 CH2M Hill inspected the reservoir for leaks and a preliminary design was conducted to increase the inflow and outflow piping (WTR- Renton_Ch3 Existing System doc 1017/04 3-7 Chapter 3 13-0072). The inspection was prompted by a concern that the Highlands 1.5 mg and 2 mg reservoirs had been damaged in the January 28, 1995, Robinson Point earthquake (5.0 magnitude) as evidenced by wet ground around the chlorination booster station building (further examination discovered the problem was a leaking service line). Because of the concern that the two Highlands 435 Zone reservoirs will suffer major damage in a large earthquake the City plans to replace them in the future. Highlands 435 Reservoir - 2 mg (435 Pressure Zone; Overflow elevation = 439.8 feet NAVD 1988) Also located at the Highlands reservoir site, this covered, concrete lined, partially in- ground, partially aboveground reservoir was constructed in 1960 (W -0024). In 1986 the beams for the cover were sand blasted and painted. In 1987 the roof beams were inspected for cracks; some were found at the column locations (W -0909) .. In 1992 reinforcing collars were installed at the roof beam-column intersections and various cracks and joints in the concrete liner were sealed (W-I081). See discussion above for 2000 inspection. Highlands 565 Reservoir (565 Pressure Zone; Overflow elevation = 569.1 feet NAVD 1988) Also located at the Highlands reservoir site, this 0.75 mg elevated steel reservoir was constructed in 1960 (W-0018). CH2M Hill has periodically inspected it over the years: 1969, 1973, 1977, and 1985. In 1971 an impressed current cathodic protection system was installed (W-0371). The exterior was recoated in 1978 (W-0476). In 1996 Chicago Bridge & Iron inspected" the reservoir. In 1997 the interior of the reservoir was recoated, the impressed cathodic protection system was replaced, and additional railing and a safety climb rail were added (W-2210). Also, in 1997 the exterior of the reservoir was recoated (W-2303). During the Nisqually earthquake of February 28, 2001, (6.8 magnitude) the cross bracing of the tower structure was plastically deformed. In 2003 the bracing was repaired and the tank structure seismically rehabilitated (W -3005). The rehabilitation consisted of installing friction dampeners on the cross bracing and flexible connections where the water mains interface with the tanks. Rolling Hills 590 Reservoir (590 Pressure Zone; Overflow elevation = 593.1 feet NAVD 1988) Located at the Rolling Hills reservoir site near the intersection of Puget Drive SE and Edmonds Avenue SE, this 0.3 mg elevated steel reservoir was constructed in 1970 (W- 0323). The exterior was recoated in 1980 (W-0524). During the Nisqually earthquake of February 28, 2001, (6.8 magnitude) the cross bracing of the tower structure was plastically deformed. In 2003 the bracing was repaired and the tank structure seismically rehabilitated (W-3005). The rehabilitation consisted of installing friction dampeners on the cross bracing and flexible connections where the water mains interface with the tanks. In addition to this work both the interior and exterior were recoated and an impressed current cathodic protection system was installed. 3-8 Renton _ Ch3 Existing System.doc 10/7/04 EXISTING SYSTEM Rolling Hills 490 Reservoir (490 Pressure Zone; Overflow elevation = 494.5 feet NAVe 1988) Also located at the Rolling Hills reservoir site, this 3 mg above ground steel tank was constructed in 2001 (W-2230). , West Hill Reservoir (495 Pressure Zone; Overflow elevation = 498.6 feet NAVD 1988) Located adjacent to Dimmitt Middle School near the intersection of 82nd Avenue S and S 126th Place, this 1.3 mg steel standpipe was constructed in 1985 (W-0489). CH2M Hill inspected the tank in 1998 (WTR-13-0063) and its interior and exterior protective coatings were founded to be in good and very good condition, respectively. South Talbot Reservoir (350 Pressure Zone; Overflow elevation = 353.6 feet NAVD 1988) Located on Mill Avenue SE south of Carr Road, this 1.5 mg aboveground steel tank wa~ constructed in 1990 (W-0722). CH2M Hill inspected the tank in 1998 (WTR-13- 0063) and its interior and exterior protective coatings were founded to be in good and very good condition, respectively. 3.2.3 Booster Pump Stations The City has twelve booster pump stations that provide regular and emergency supply from the sources of supply and lower pressure zones within the service area to the higher service areas. A description of each of the facilities is included in the following discussion. Table 3-5 provides a summary of each of the pump stations and the rated capacity of each pump. Mount Olivet Booster Pump Station Located adjacent to the Mount Olivet Reservoir, this station pumps from the 196 Pressure Zone to the 435 Pressure Zone. Constructed in 1967 (W-0262). In 1989 one booster pump was added and the electrical, heating, and ventilation systems were rehabilitated (W-0931). This pump station does not have emergency power back-up capability. As part of the 2005-2011 CIP, emergency power with auto-start and auto- transfer will be added to this station. Flow from the station is measured by one meter located in a vault outside the station. The pumps are controlled by the elevations of the Highlands 435 Zone reservoirs. Houser Way Booster Pump Station Located on the northwest comer of the intersection of Houser Way N and N Marion Street, this station pumps from the 196 pressure zone to the 435 and 320 pressure zones. Constructed in 1996 (W -2089). The station has a receptacle for an emergency generator hook-up and a manual transfer switch. Meters located inside the station measure flow to the two pressure zones. The pumps are controlled by: (1) the elevations of the Highlands 435 Zone reservoirs and (2) the pressure in the 320 pressure zone measured at the station. Renton_Ch3 Existing System.doc 1017104 3-9 Chapter 3 Table 3·4 Existing Storage Facilities Reservoir Reservoir Reservoir Reservoir Reservoir Reservoir Volume Volume Volume Reservoir Gross Base Overflow Highest Elevation Elevation Elevation w/40psi w/30psi w/20psi Name and Volume Elevation Elevation Height Gallons . Service @40psi @30psi @20psi residual residual residual Zone (gal) (tt) (tt) (tt) per Foot Elevation (tt) (tt) (tt) (gal) (gal) (gal) North Talbot 5,078,381 173.2 199.7 26.5 Varies 128 220.3 197.2 174.2 0 605;880 5,078,186 196 Mount Olivet 2,814,552 146.9 184.1 37.2 75,680 128 220.2 197.2 174.2 0 0 749,232 196 Highlands 435 1,555,223 425.6 440.3 14.7 Varies 365 457.3 ·434.2 411.2 0 833,492 1,555,223 (1.5 mg) Highlands 435 h.947,664 425.3 439.8 14.5 . Varies 365 457.3 434.2 411.2 0 989,617 1,947,664 (2.0 mg) Highlands 565 I 747,985 534.1 569.1 35 Varies 469 561.3 538.2 515.1 143,304 639,757 747,985 Rolling Hills 300,000 565.5 593.5 28 Varies 473 565.3 542.2 519.2 300,000 300,000 300,000 590 Rolling Hills I 3,036,535 458 494.5 36.5 83,193 398 490.3 467.2 444.2 349,410 2,271,162 3,036,535 490 West Hill 495 1,394,155 395.6 498.6 103.0 13,535 386 478.3 455.2 432.2 274,770 '587,440 898,756 South Talbot 1,586,190 326.6 353.6 27.0 58,748 239 331.3 308.2 285.2 1,310,075 1,5869,190 1,586,190 350 Maplewood 212,846 71.0 79.3 8.3 25,551 N/A N/A N/A N/A N/A N/A N/A Clearwell I 1. Elevations are feel NAVD 1988. 3-10 Renton_Ch3 Existing System doc IOm04 Table 3·5 Booster Pump Stations Rated Capacity Name Mount Olivet Houser Way Monroe Highlands North Talbot West Hill Rolling Hills Maplewood Clearwell& Clearwell Windsor Hills South Talbot Tiffany Park Fred Nelson Total Zone Pumps From 196 196 435 435 196 196 490 565 196 196 SPU (490) SPU (490) Zone Pumps To 435 435/320 565 565 490/350 495 590 590 435 350 590 590 Pump 1 Pump 2 1,050 1,500 700 2,050 (to 320 Zone) 1,000 1,500 1,500 1,200 1,750 1,500 600 600 1,000 1,000 1,500 2,500 1,000 1,000 -200 600 350 700 225 700 1. Not included in total; cannot be used in conjunction with Houser Way. 2. Maximum capacity of well-treatment plant-pump station system is 5,500 gpm. 3. Station designed for any two pumps to run simultaneously. 4. Only one fire pump can operate at one time. One pump is redundant Windsor Hills Booster Pump Station Pump 3 1,800 2,050 1,200 990 1,000 2,500 1,500 3,500 EXISTING SYSTEM Total Total Pump 4 (gpm) (mgd) 4,350 6.26 4,800 6.91 2,500 3.60 3,900 5.62 500 (to 4,740 6.83 350 Zone) 2,200 3.17 2,500 5,000 1 7.20 2,500 5,500 2 7.92 2,000 3 2.88 3 3,500 4,300 4 6.19 1,050 1.51 925 1.33 39,265 56.54 Located to the west of the intersection of Sunset Boulevard NE and Bronson Way NE, the station can pump from the 196 pressure zone to the 435 pressure zone when valves are opened and closed to reconfigure the zones near the station (see W-2089). Constructed in 1961 (W-0064). Its electrical system was rehabilitated in 1994 (W- 1018). This station is used as a back-up to the Houser Way Booster Pump Station. It does not have emergency power back-up capability. This station does not have a flow meter. The pumps are controlled by the elevations of the Highlands 435 Zone reservOIrs. Monroe Avenue Booster Pump Station Located on the northwest comer of the intersection of NE 4th Street and Monroe Avenue NE, this station pumps from the 435 Pressure Zone to the 565 Pressure Zone. An 8-inch SCADA-controlled (supervisory control and data acquisition) transfer valve can allow flow from the 565 Pressure Zone to the 435 Pressure Zone. The valve is used in coordination with Maplewood Booster Pump Station when it is pumping into the 565 Pressure Zone. Constructed in 1969 (W-0324). In 1991 the station's Renton_Ch3 Existing System.doc 1017104 R. W. Beck 3-11 Chapter 3 electrical system was rehabilitated (W -1048). It does not have emergency power back-up capability. Flow from the station is measured by one meter located in the station. The pumps are controlled by the elevation of the Highlands 565 Reservoir. Highlands Booster Pump Station Located at the Highlands reservoir site this station pumps from the 435 Pressure Zone to the 565 Pressure Zone. Constructed in 1960 (W-0018). In 1989 two pumps and motors were replaced and the third pUmp was rebuilt; the electrical systelP was rehabilitated (W-0924). An isolation valve was installed in 1992 (W-1023). In 2003 the wooden doors on the west side of the building were replaced with metal. This station has emergency power back-up with auto-start and auto-transfer (W-0815). Flow from the station is measured by one meter located in a vault outside the station. The pumps are controlled by the elevation in the Highlands 565 Reservoir. North Talbot Booster Pump Station Located near the intersection of SR 515 (Benson Road) & S 19th Street this station pumps from the 196 Pressure Zone to the 490 and 350 Pressure Zones. (Originally pumped to the 590 Zone and 350 Zone). Constructed in 1979 (W-0450). A manual transfer switch with Kirk-Key safety system was added in 1999 to allow the station to be powered by a City-owned portable generator (W-2784).In 2001 a back-pressure sustaining valve was added to the station's primary discharge when a portion of the 590 Pressure Zone was converted to the 490 Pressure Zone as part of the Rolling Hills 3 mg reservoir and pump station project (W-2230). The station's electrical, heating, and ventilation and control systems were rehabilitated in 2003 (W-2878). Flow to the two pressure zones is measured by meters located inside the station. The pumps are controlled by: (1) the elevation in the Rolling Hills 490 Reservoir and (2) the elevation in the South Talbot Reservoir. Rolling Hills Booster Pump Station Located at the Rolling Hills reservoir site this station pumps from the 490 Pressure Zone to the 590 Pressure Zone. Two back-pressure sustaining valves in the p~p stati9n allow water to flow from the 590 Pressure Zone to the 490 Pressure Zone when the Rolling Hills 590 Reservoir is near overflow. This is to allow the Rolling Hills 3- mg reservoir to be filled by either the Maplewood Booster Pump Station or North Talpot Booster Pump Station. Constructed in 2001 (W-2230). This pump station is equipped with emergency generator with auto-start and auto-transfer. One flow meter measures flow from the 490 Zone to the 590 Zone. Another meter measures flow from the 590 Zone to the 490 Zone. Both meters are located inside the station. The pumps are controlled by the elevation in the Rolling Hills 590 Reservoir. Tiffany Park Booster Pump Station Located in Tiffany Park near the intersection of Kirkland Avenue SE and SE 20th Court, this station pumps from the SPU 66-inch Cedar River transmission main to the 590 Zone. Constructed in 1962 (W-0226). The pumps were replaced in 1972 (W- 0383). The entire station was rehabilitated in 1984 (W-0742). It does not have 3-12 Renton _ CbJ El(isting System doc 1017104 EXISTING SYSTEM emergency power back-up capability. This station does not have a flow meter. The pumps are controlled by the elevation in the Rolling Hills 590 Reservoir. Fred Nelson Booster Pump Station Located adjacent to Nelsen Middle School on Benson Road S this station pumps.from SPU 60-inch Bow Lake transmission main to the 590 Pressure Zone. Constructed in 1962 (W-1125). It does not have emergency power back-up capability. This station does not have a flow meter. The pumps are controlled by the elevation in the Rolling Hills 590 Reservoir. Maplewood Booster Pump Station Located at the Maplewood Golf Course this station pumps from the Maplewood wellfield c1earwell to the 565 and 590 Pressure Zones. Constructed in 1995 (W -1052). When the Maplewood Treatment Improvements project (W-2953) is completed in June 2005 anyone of its 1,500 gpm pumps will have emergency back-up power (manual transfer -see discussion of Maplewood wellfield, above). Flow to the two pressure zones is measured by meters located inside the station. The pumps are controlled by: (1) the elevation in the Highlands 565 Reservoir and (2) the elevations in the Rolling Hills 490 and 590 reservoirs. South Talbot Booster Pump Station Located on SW 43rd Street just west of SR 167 this station pumps from the 196 Pressure Zone to the 350 Pressure Zone. Constructed in 1982 (W-0600). A manual transfer switch with Kirk-Key safety system was added in 1999 to allow the station to be powered by a City owned portable generator (W-2784). Flow from the station is measured by one meter located in the station. The domestic pumps are controlled by th€ elevation in the South Talbot Reservoir. The fire flow pumps are controlled by the pressure of the 350 Pressure Zone measured at the station. Only one fire pump can operate at one time, the other pump being a back-up. West Hill Booster Pump Station Located on West Perimeter Road at the Renton Municipal Airport near the control tower, this station pumps ~om the 196 Pressure Zone to the 495 Pressure Zone. Constructed in 1985 (W-0715). Has one 1,000-gpm fire pump that is driven by a diesel engine with auto-start. Flow from the station is measured by one meter located in the station. The pumps are controlled by the elevation in the West Hill Reservoir. 3.2.4 Pressure Zones and Pressure-Reducing Stations {PRVs} The City'S 14 different pressure zones provide pressures in the distribution system that range from 24 to 167 psi. The lowest pressures occur in an isolated area at the northeast comer of Talbot Road S and Carr Road. The highest pressures occur in an isolated area in the NW 7th Street area of the 495 Pressure Zone. The City currently serves customers within an elevation range of 11 feet to 473 feet. Table 3-6 lists each pressure zone, as it is commonly named, and the nominal hydraulic elevation that each pressure zone provides. The nominal hydraulic elevation Renton_Ch3 Existing System. doc 10/7/04 R. W. Beck 3-13 Chapter 3 is the overflow elevation of the highest reservoir in the pressure zone or the hydraulic elevation setpoint on the lead pressure-reducing valve. Also included in Table 3-5 are the lowest and highest ground elevations served in each pressure zone and the corresponding pressure at those elevations. Table 3·6 Pressure Zones· Minimum and Maximum Service Pressures and Elevations Maximum Minimum Minimum Maximum Elevation Service Elevation Service Served Pressure Served Pressure Pressure Zone (tt) (psi) (tt) (psi) Kennydale 320 218 44 15 132 Highlands 435 365 31 -32 100 145 Highlands 565 469 39 -43 282 124 Downtown 196 128 24 -31 _.11 82 West Hill 495 386 35 -49 113 167 West Hill 300 [previously 270] 216 38 40 114 Earlington 370 261 49 89 123 Scenic Hill 370 264 '47 110 114 Scenic Hill 490 Rolling Hills 590 473 49 -52 300 127 Rolling Hills 490 398 37 -41 157 145 Rolling Hills 395 291 45 221 75 Talbot Hill 350 239 46 -50 40 136 Talbot Hill 300 -East 200 45 143 70 Talbot Hill 300 -West 193 48 46 112 1. Pressures stated above are static values. Range of pressure for zones With reservOirs represents pressures between 70 percent full and 100 percent full. Figure 2, Hydraulic Profile (in Appendix F) shows the vertical relationship of the _ system's pressure zones and demonstrates how water can move up ,or down through the system. The hydraulic profile illustrates how water can move vertically through the system, while Figure 1 (Appendix F) illustrates how water can move horizontally through the system. - All pressure zones are served directly or indirectly from the City's active "Yells and Springbrook Springs. The downtown wells (RW-1, RW-2, RW-3, PW-8, and PW-9) directly supply the 196 Pressure Zone. If the water is not consumed in the downtown pressure zone, and it is needed in a higher zone, it is pumped by booster stations to the higher pressure zones. Well PW-5A supplies the Highlands 435 Pressure Zone directly where it is also available for supply to the 565 Pressure Zone (through booster stations) or pressure reduced to the 320 Pressure Zone. Wells PW-ll, PW-12, and PW-17 supply the Highlands 565 Pressure Zone and Rolling Hills 590 Pressure Zone. It is desirable to have two or more connections (or supply points) that will allow water to move to a higher pressure zone, or downward to a lower pressure zone. This 3-14 RentoD_Ch3 Existing System.doc 1017104 EXISTING SYSTEM arrangement maximizes system reliability by providing multiple paths or routes that the water can take when moving between pressure zones. Although the system has 14 distinct pressure zones, not all of the pressure zones have separate storage or supply facilities. Some pressure zones are supplied exclusively by pressure reducing stations from an upper pressure zone. It is impractical to plan facilities and improvements for all of these pressure zones; therefore, the water system has been divided into five operating areas. Each operating area is a single pressure zone or combination of pressure zones with similar operating characteristics. For example, a lower pressure zone that is supplied exclusively by PRY s from an upper pressure zone would be combined with that upper pressure zone to form an operating area. For the majority of this plan, the following pressure zones are included in each operating area: Operating Area 196 435/320 565 West Hill Rolling HillsrTalbot Hill Table 3·7 Pressure Zones by Operating Area Included Pressure Zones Downtown 196 Highlands 435, Kennydale 320 Highlands 565 West Hill 495, West Hill 300, Earlington 370 ROiling Hills 590, Rolling Hills 490, Rolling Hills 395, Talbot Hill 350, Talbot Hill 300 (East & West), Scenic Hill 370, Scenic Hill 490 Pressure reducing stations are installed between pressure zones and allow water from a higher level pressure zone to flow into a lower level pressure zone at reduced pressures. The PRVs in the pressure reducing stations hydraulically vary the flow rate through the valve to maintain a constant and preset discharge pressure up to the limit of the flow capacity of the valve. The effect of a PRY on the lower pressure zone is the same as that as a reservoir whose overflow elevation is the same as the pressure setting on the valve (hydraulic elevation). Lead PRVs are located in hydraulically remote areas from both upper and lower pressure zone reservoirs to promote good circulation in both pressure zones, thus maintaining water quality. Lag PRVs may be located hydraulically closer to storage to minimize system head losses during high flow rate conditions when the lag valves need to operate. . The primary purposes of the PRVs in the Renton system are as follows: 1. To maintain pressures in the lower pressure zone during high demand periods; 2. To increase pressure and flow which would otherwise be required during an emergency such as a fire or pipeline failure; 3. To achieve optimum circulation in each pressure zone, thereby maintaining water quality. Renton_Ch3 Existing System.doc 1017104 R. w. Beck 3-15 Chapter 3 When a PRY malfunctions in an open position and allows downstream pressures to rise above the PRY setpoint, damage can occur due to overpressuring of the pressure zone. . The probability of overpressUring the lower pressure zone can be greatly reduced by placing a pressure relief valve on the discharge (pressure-reduced) side of the PRV. If a pressure sensor is also installed on the PR V discharge and the pressure reading is telemetered and alarmed at the central control center, the City will know quickly when the failure is occurring and will be able to minimize damages as a result of the PRY failure. The City's PRY stations currently in operation are listed in Table 3-8. As part of the ' Maplewood Treatment Improvements project (W-2953) a PRY station will be installed adjacent to the booster pump station. The flow through the 8-inch PRY will be from the 565 Pressure Zone to the 196 Pressure Zone. Table 3·8 Pressure Reducing Station Water Map Book Valve Location PRV Project Valve Elev. Station No. and Location Zone Supplied Pg. No. Detail No. Size (ft) West Hill 300 Pressure Zone . Taylor PI NW SE of West Hill 495 E3 6 W-030a 2" 154.6 intersection of Taylor PI 4" NWand Stevens Ave NW a" 2 NW 4th Street & Lind Ave West Hill 495 F3 7 W-030a 4" 176.6 NW 8" 3 SW Langston Rd & Bagley Earlington 370 F3 22 W-0285 4" 178.6 Place SW 8" 42 NW 2nd PI & Lind Ave NW West Hill 495 F3 None W-0867 1" 188 47 NW 3rd Street & Maple West Hill 495 F3 None W-3123 2" 149 AveNW 8" Scenic Hill 370 Pressure Zone 4 Mill Ave S & S 6th Street ROiling Hills 490 F4 20 W-2240 8" 157.5 5 Cedar Ave S & S 5th Rolling Hills 490 F4 19 W-041 0 4" 191.6 Street 6 Beacon Way S between SPU Cedar F4 None None 3" 267.6 . Renton Ave S & Cedar River Pipeline 3" AveS 22 Renton Ave S & Beacon Rolling Hi"s 490 F4 18 W-1939 1.5" 222.6 WayS 6" East Talbot Hill 300 Pressure Zone 7 Benson Rd S & S 15th Rolling Hi"s 490 G4 28 W-0620 2" 125.9 Street 8" 8 Eagle Ridge Dr & S 15th Rolling Hills 490 G4 None W-0620 3" 220.5 Street 10" Talbot Hill 350 Pressure Zone 3-16 Rentou_Ch3 Existing Systemdoc 1017104 EXISTING SYSTEM Table 3·8 Pressure Reducing Station Water Map Book Valve Location PRV Project Valve Elev. Station No. and Location Zone Supplied Pg. No. Detail No~ Size (tt) 9 North Talbot Booster Rolling Hills 490 G3 30 W-0419 3" 165.0 Pump Station 8" 12 S 23rd Street & Williams Rolling Hills 490 G3 32 W-2126 3" 222.6 AveS 12" 28 S 23rd Street & Shattuck SPU Bow Lake G3 33 W-1848 2" 188.0 Ave S Pipeline 8" West Talbot Hill 300 Pressure Zone 10 S 16th & Talbot Rd S Talbot Hill 350 G3 29 W-0552 2" 112.0 6" 29 S 23rd Street & Shattuck Talbot Hill 350 G3 33 W-1848 2" 187.6 AveS 8" Kennydale 320 Pressure Zone 13 Meadow Ave N & N 28th Highlands 435 C4 44 W-2136 3" 203.0 Street 10· 14 Meadow Ave N & N 32nd Highlands 435 C4 42 W-0456 4" 208.6 Street 12" 16 NE 3rd Street & 1-405 Highlands 435 F4 None W-0395 4" 41.0 12" 26 Marina Landing Aps -Highlands 435 04 5 W-1994 2.5" 85.8 4800 Lk Washington Blvd 10" 39 Houser Way Booster Highlands 435 F4 13 W-2089 3" 35.0 Pump Station 10" 43 N 26th Street & Park Ave Highlands 435 E3 6 W-2820 2" 180.0 N 8" Downtown 196 Pressure Zone 23 Tukwila Intertie -SW 34th Tukwila H2 2 W-0515 1.25" 24.6 Street & West Valley 8" Highway 24 Boeing Longacres Fire SPU Bow Lake H2 W-2071 10" 16.5 Intertie Pipeline 10" 25 Kent Intertie -SW 43rd Kent 13 35 W-0515 1.25" 17.3 Street & Lind Ave SW 10" 30 Park Ave N & N 8th Street Kennydale 320 E4 8 W-1922 3" 26.0 12" 31 Garden Ave N & N 7th Kennydale 320 E4 9 W-1922 3" 25.8 Street 12" 32 SW Sunset Blvd & Maple West Hill 300 F3 25 W-0854 2" 68.4 AveSW 8" Renton _ CbJ Existing System. doc 1017104 R. W. Beck 3-17 Chapter 3 Table 3·8 Pressure Reducing Station Water Map Book Valve Location PRV Project Valve Elev. Station No. and Location Zone Supplied Pg. No. Detail No. Size (tt) 36 Talbot Rd S & 177th Ave Talbot 350 13 39 W-2091 3" 98.58 SE 12" 37 N 4th Ave & Houser Way Highlands 435 F4 12 W-2089 3" 46.0 N 12" 40 Maplewood Booster Pump Rolling Hills 590 G6 50 W-1052. 6" 80.0 Station Rolling Hills 490 Pressure Zone 34 Benson Rd S & S 23rd ROiling Hills 590 H4 None W-1827 2%" 372.0 Street 10" 46 SE 8th Place, between S Rolling Hills 590 G4 None W-2981 3" 385.2 7th Ct & SE 8th Street 12" Earlington 370 Pressure Zone 35 Thomas Ave SW & SPU Cedar F3 21 W-1033 8" 233.0 Langston Rd River Pipeline 41 84th Ave S & Renton Ave West Hill 495 F3 46 W-2280 3" 218.0 S 12" Highlands 435 Pressure Zone 38 Monroe Ave Booster Highlands 565 F5 15 None 8" 343.6 Pump Station -Transfer Valve Rolling Hills 395 Pressure Zone 44 Shadow Hawk Condos -Rolling Hills 590 G5 None W-2900 3" 240.5 SE Royal Hills Dr 12" . 45 Shadow Hawk Condos -Rolling Hills 590 G5 None W-2900 3" 296.0 SE Royal Hills Dr 12" The following list provides additional infOImation on PRY stations that are no longer in operation. • PRY Stations 17, 18, 19, 20, 21, and 33 were put on inactive status (zone valves opened; PRVs set to wide open) in 2001 as part of the reconfiguration of the 490 and 590 pressure zones following the completion of the Rolling Hills 3-mg reservoir and booster pump station project (W-2230) • PRY Station 11 was removed in 1995 (W-2126) • PRY Station 15 was removed in 1992 • PRY Station 27 was removed in 1992 3-18 Renton _ Ch3 Existing System doc 1017104 EXISTING SYSTEM 3.2.5 Interties and Emergency Supply Sources The City maintains several emergency supply sources. These sources consist of one emergency well, EW-3, and nine metered connections. Table 3-9 lists these sources. All of the City's interties, regular and emergency supply, are shown in Table 3-3. Meter Name Size Tiffany Park 8" SWD Sta. #391 SWD Sta. #331 6· (PRV28) SWD #381 6" (PRV 35) SWD Sta. #371 3"/3" (PRV 6) SWD Sta#361 6" Fred Nelson 8· SWD Sta. #341 Boeing CSTC 12" Fire Tukwila 8" PRV 232 Kent 10" PRV 252 Well EW-3 N/A 1. Can be used for regular supply Table 3·9 Emergency Supply Sources Location Source Kirkland Av SE & SE SWD-66" 158th St Shattuck Av S & S 23rd SWD-60' S 134th St & Thomas Av S SWD-66" Beacon Wy S near Renton SWD-66" Av S Jones Av S & S 7th St SWD-66" Benson Rd S & S 26th St SWD-60" SW 23rd St -300 ft west SWD-60· of Oakesdale West Valley & extension of Tukwila SW 34th St SE 43rd St & Lind Av SW Kent Liberty Park City Well 2. Emergency can indude peak demands of short duration. Maximum Flowrate Agreement (gpm) Yes 1,050 Yes 700 Yes 700 Yes 320 Yes 700 Yes 925 Yes 2,800 Yes 2,4.00 Yes 1,900 N/A 1,500 The City has 10 interties as defined by RCW 90.03.383 (use prior to January 1, 1991) plus four emergency interties. Two of the four emergency interties, Boeing CSTC Fire and the Renton/Seattle intertie at Union Avenue SE and SE 2nd Place, are only for emergency purposes. Emergency use for the Kent and Tukwila interties can include peak demands for a short duration. Notices of the 10 interties were submitted to the Washington State Department of Ecology and Washington State Department of Health in May 1992 and then again in June 1996. Copies of all of the City's intertie and emergency supply agreements are included in Appendix B. Renton's existing wholesale connection with Skyway is included in Table 3-3. The City is currently in discussions with Skyway Water and Sewer District regarding an emergency intertie between the two systems. The intertie would be located near the West Hill Reservoir. Flow to the Renton system would be via a booster pump station that Skyway plans to build at that location regardless of whether or not the intertie is established. Renton _ Ch3 Existing System.doc 1017104 R. W. Beck 3-19 Chapter 3 3.2.6 Distribution System The City's water pipelines are shown in plan view in Figure 1 (Appendix F). Table 3- lOa, Table 3-l0b, and Table 3-10c at the end of this chapter, summarize the length of mains in the water system by diameter, pressure zone, material, and age. Transmission capability for the system is primarily provided by 12-inch, l6-incl1, and 24-inch diameter pipelines from the well fields located in Liberty Park, Cedar River Park, and the Maplewood Golf Course to various points. within the service area. Since approximately 96 to 97 percent of the system's supply is provided from the wellfields, major transmission facilities are required in the 196 Pressure Zone to ensure adequate water distribution throughout the service area. As can be observed in Figure 1 (Appendix F), the transmission pipelines are located primarily along the major transportation corridors. The looped 8-inch pipelines in the well developed residential areas of the system also provide some transmission capability. Transmission pipelines in the 196 Pressure Zone predominantly run north to south, . supplying the downtown business pressure zone, the Green River Valley industrial complexes, and the booster pump stations that serve the other areas of the system. East-west pipelines that connect to the north-south transmission mains also provide additional transmission capacity. The pipe loops or grids formed by these connections help to increase system reliability and capacity throughout the system. Transmission pipelines from the Maplewood wellfield carry finished water to the Highlands and Rolling Hills. Both transmission pipeline routes follow unimproved corridors and steep slopes. A high-pressure fire loop (320 hydraulic grade line) encompasses a high risk area of the industrial sector near the Paccar and Boeing plants for improved fire protection. For areas on the eastern side of the valley, the topography of the terrain dictates that the transmission corridors run -in a north-south orientation within each pressure zone and in a west-east orientation between the different pressure zones. The transmission corridor in the West Hill area runs east and west from the West Hill Pump Station to the reservoir and north and south on 84th Avenue S. A separate transmission route connects the reservoir with Skyway Water and Sewer District. Looped 8-and 6-inchdistribution mains provide a large percentage of the transmission capacity in the West Hill area. Transmission mains generally convey water between the supply sources (reservoirs or wells) to the local distribution grid where it is conveyed to the source of the demand. Ideally, minimal head losses should occur in transmission pipelines during normal demand periods, allowing these mains to also convey fire demands to the distribution system and to meet other emergencies without experiencing. adverse head losses. 3-20 Rentoo_Ch3 Existing System.doc 10/7/04 EXISTING SYSTEM Table 3·10a Pipe Inventory Length By Zone by Diameter Rolling Hillsl 196 320 435 565 West Hill Talbot Hill Maplewood Total Misc Zone Zone Zone Zone Zones Zones (79 Zone) Length Diameter Interties (tt) (tt) (tt) (tt) (tt) (tt) (tt) (tt) Less 61 146 325 2,184 289 2,477 892 0 6,374 than 4" 4" 0 14,761 2,841 16,742 15,210 7,428 26,768 0 83,750 6" 0 42,873 5,371 41,839 67,348 14,731 48,514 0 220,676 8" 551 76,603 43,082 74,665 174,572 28,098 91,143 0 488,714 10· 63 67,436 6,863 13,700 44,965 3,289 19,181 281 155,778 12" 136 202,451 61,394 28,177 50,434 17,275 70,678 3,184 433,729 14" 0 1,174 0 1,714 0 0 0 0 2,888 16" 0 46,495 567 29,568 10,279 198 13,428 2107 102,642 18" 0 3,985 0 0 0 0 0 0 3,985 20" 0 1,664 0 0 0 0 2,108 0 3,772 24" 0 21,040 0 561 0 0 ,300 0 21,901 42" 0 900 0 0 0 0 0 0 900 Total 811 479,528 120,443 209,150 363,097 73,496 273,012 5,572 1,525,109 Table 3·10b Pipe Inventory Length By Material and Diameter Asbestos Cement Cast Iron Ductile Iron Plastic· Steel Total Diameter (tt) (tt) (tt) (tt) (tt) Length (tt) Less than 4" 0 99 801 263 5,212 6,375 4" 3,741 55,128 15,566 0 9,317 83,752 6" 5,924 161,918 32,343 0 20,490 220,675 8" 6,045 110,079 366,893 0 5,698 488,715 10" 0 22,946 132,820 0 12 155,778 12" 8,212 77,725 344,887 122 2,785 433,731 14" 0 2,880 8 0 0 2,888 16" 120 19,304 83,055 0 164 \ 102,643 18" 0 3,623 361 0 0 3,984 20' 0 0 3,771 0 0 3,771 24" 0 34 21,867 0 0 21,901 42" 0 0 0 0 900 900 Total 24,042 453,736 1,002,372 385 44,578 1,525,113 Renton_Ch3 Existing System doc 10/7/04 R. W. Beck 3-21 Chapter 3 Table 3·10c . Pipe Inventory Length By Material and Age Before 2000·May Total 1950 1950·1959 1960·1969 1970·1979 1980·1989 1990·1999 2004 Length Material (tt) (tt) (tt) (tt) (tt) (tt) (tt) (tt) Asbestos 0 14,903 6,909 92 2;138 0 0 24,042 Cement Cast Iron 105,363 25,014 234,451 80,161 8,624 123 0 453,736 Ductile 442 6,669 18,626 188,301 354,110 309,061 125,163 1,002,372 Iron Plastic 0 0 0 0 263 0 122 385 Steel 5,041 15,627 22,006 234 660 38 972 44,578 Total 110;846 62,213 281,992 268,788 365,795 309,222 126,257 1,525,113 The distribution system for the City as shown in Figure 1 (Appendix F) consists of all the smaller pipelines below 12 inches in diameter that convey water from the transmission grid to the individual service connections. A distribution system functions by meeting individual demands in the immediate vicinity via branching and looping pipelines through the service area. Under normal conditions, the velocity of water in transmission and distribution mains should be less than 5 fps during peak demand periods, and less than 8 fps during fire demands periods. Velocities in excess of 8 fps may produce unacceptable thrust forces in underground fittings and cause excessive pipe wear or failure. Therefore, limiting flow velocity to less than 8 fps has been adopted by the City as a design criteria. The transmission and distribution system is comprised of water mains' of four different materials: asbestos cement (AC), steel (ST), ductile iron (DI), and cast iron (CI). Current City policy is to replace all AC and ST water mains in the system as the budget permits, since transmission lines made of these materials are prone to leakage and failure. Table 3-11 summarizes the water main replacements the City has done since 1998. In the fall of 2004 the City plans to construct a 12-inch DI water main along the following route: Kirkland Avenue NE between NE 12th Street and Sunset Boulevard NE; Sunset Boulevard NE between Kirkland Avenue NE and Harrington Avenue NE; Harrington Ave NE between Sunset Boulevard NE and NE 9th Street; and NE 9th Street between Harrington Avenue NEand Kirkland Avenue NE. The purpose of the project is to provide increased fire flow availability and domestic service pressures to an area that is being redeveloped as mixed use. The new mains will extend the 565 Pressure Zone into the area. The City and a developer will share the initial project costs. The City plans to recoup its' costs via Special Assessment District fees when other developers build in the area. 3-22 Renton_Ch3 Existing System doc 10/7/04 EXISTING SYSTEM Other future distribution improvements are discussed III Chapter 10, Capital Improvement Program. Table 3·11 Water Main Replacements Since 1998 Size & Material Length Before Year (LF) Replacement New Project No. 1998 2,407 8" CI 12" 01 W-2181 1999 1,791 6" & 8" AC 8" & 12" 01 W-2768 1999 484 6" & 8" ST 8" 01 W-2741 1999 2,590 4" & 6" CI 8"&12"01 W-2743 & W-2751 2000 1,500 4" & 6" ST 8" 01 W-2909 2001 5,193 6" AC 16" 01 W-2825 2001 3,750 4",6", & 8" CI 10" & 12" 01 W-2722 2002 3,770 6" CI 8" 01 W-2955 2002 270 CI 01 W-2990 2002 150 6" AC 8" 01 W-2768 2003 1,848 8" ST 8" 01 W-2788 2003 1,788 4" & 6" CI 8" & 12" 01 W-2960 2004 4,519 4",6", & 8" ST 8" 01 W-3078 2004 4,963 4" & 6" CI 8" 01 W-3142 AC -asbestos cement CI = cast iron 01 = ductile iron ST = steel 3.2.7 Source Treatment Renton chlorinates all of its sources for the purpose of secondary disinfection. The target dose is 0.8 mg/L. Additionally, Wells RW-1, RW-2, and RW-3 are provided with primary disinfection. Renton began chlorinating its drinking water in 1976. See "Source of Supply" above for further information. Renton began fluoridating its drinking water in 1986. The target dose is 1.0 mg/L. All sources, except Wells PW-8, PW-9, PW-11, PW-12, and PW-17, have the fluoride saturation and metering equipment located in the well house. Wells PW -8 and PW-9 are served by the Fluoridation Building, which is located next to Well PW-8. This building also serves a storage facility for bagged sodium fluoride. Fluoridation for Wells PW-ll, PW-12, and PW-17 occurs at a central location-the Maplewood Booster Pump Station and Treatment Building. The Source of Supply section earlier in this chapter describes these facilities in greater detail. In 1999 the City began treating the water from the downtown wells and Springbrook Springs with sodium hydroxide to raise the pH of the water. The purpose for doing this is to make the water less corrosive and to comply with the Lead and Copper Rule. Renton_Ch3 Existing Systemdoc 1017104 R. W. Beck 3-23 Chapter 3 A central storage and meter facility was constructed in Cedar River Park. From this facility diluted sodium hydroxide is fed to each of the downtown wells via HDPE pipes. Springbrook Springs has its own storage and metering system. See "Source of Supply" above for further information regarding the treatment of water from the Maplewood wellfield. 3.2.8 Telemetry and Supervisory Control and Data Acquisition (SCADA), The telemetry and SCADA systems for the water system have changed over the years with the changes in technology that is available for the purpose. The following is a brief description of the cUrrent system. Certain aspects of operation and capability are not discussed for security reasons. Each site (all sources, all booster pump stations, all reservoirs, all treatment facilities, Boeing Fire Intertie, Skyway Wholesale Meter) has a remote telemetry unit (RTU) that in some cases also serves as a programmable logic controller (PLC). Information about the site is forwarded from the site to the master telemetry unit (MTD) that is located at the Water System Control Room (City Shops Administration Building). The MTU sends information and instructions back to the RTUs. Signals between the RTUs and MTU travel either by dedicated phones lines or by radio waves. At the Water System Control Room the operations staff monitor (and in some cases control) the system using a Human Machine Interface (HMI). Ihe HMI is a PC running software that communicates with the MIU and can display information. The HMI computer also runs an auto-dialer application-(ISS Wonderware SCADAlarm!) that calls a 24-hour manned call service and/or water shop stand-by staff. There is a back- up auto-dialer that is used in the event the HMI computer or MIU fails. Each RIU, the MTU, and the HMI computer have various ievels of back-up power and redundancy. In-Touch ,also creates daily history log files. Various types of information are stored in these files (reserVoir levels, flow rates, pH, 'alarms, well levels, etc.). In 2004 the data logging will be converted to an SQL database format using ISS Wonderware Industrial SQLIMS SQL Server. 3-24 Renton_Ch3 Existing Systemdoc 1017104 Chapter 4 PLANNING DATA AND WATER DEMAND FORECASTS Planning data and demand forecasts necessary for evaluating and providing for the City's future water requirements are presented in this chapter. This chapter includes both historical and projected demographics and water demands for the City. It follows the guidelines and requirements set forth in the 1997 Water System Planning Handbook and 1994 Conservation Planning Requirements published by the Washington State Department of Health (DOH). The planning data and demand forecasts presented in this chapter satisfy two of the three elements (water use data and demand forecasts) required by DOH for a conservation plan. . The third element, the conservation program, is presented in Chapter 5. Historical and future information on City population and system demands originated from a variety of sources, including the City's Economic Development, Neighborhoods and Strategic Planning (EDNSP) Division and Billing Department, the Washington State .office of Financial Management (OFM), the Puget Sound Regional Council (PSRC), and the 2000 U.S. Census. Future projections of land use, growth, and popUlation have been developed in accordance with the Washington State Growth Management Act (GMA) and the City's current comprehensive planning efforts . . 4.1 Population and Demographic Trends Demographic projections for the City's Water System. Plan were developed using demographic forecasts from PSRC and the CitY's EDNSP Division. Forecasts prepared by PSRC incorporate 2000 census data and OFM housing and population projections. OFM forecasts were updated in January 2002 and PSRC forecasts used in this planning document were updated in April 2003. The City's demographic projections are based on PSRC demographic forecasts as well as PSRC's Buildable Lands database. 4.1.1 Historical and Existing Population and Demographics Table 4-1 shows the historical and existing population and demographics for the City's water service area. Demographics are presented for single-and multifamily households and employees. Population and demographic information was provided by the City wherever it was available. Other data sources include PSRC, 2000 census data, and OFM. Renton _ eh4 Planning. doc 1017104 Chapter 4 Estimates of single-family households were provided by the City; estimates of rriultifamily households are based on a combination of City and PSRC estimates; and population and employment data are based strictly on PSRC estimates. PSRC developed population and demographic estimates for the year 2000 based on 2000 census data and OFM housing and population estimates. Population and employment estimates foi 2001 through 2003 were developed using the average annual growth rates between 2000 estimates and PSRC's 2010 forecasts. In recent years there has been a steady amount of growth in the number of single- family households, with an average increase of approximately 2.3 percent per year since 1998. Growth in multifamily households and employment has increased at a similar rate, with an average estimated growth of2.1 percent and 2.7 percent per year, respectively, since 2000. Table 4·1 Historical and Existing Demographics Single-Family Multifamily Year Population1 Households1 Households2 Employeesl 1998 NA 10,475 NA NA 1999 NA 10,633 NA NA 2000 47,646 10,830 8,980 50,238 2001 48,137 11,060 9,172 51,609 2002 48,633 11,357 9,363 53,018 2003 49,133 11,743. 9,562 54,466 1. Y ear 2000 multifamily households are from PSRC. Multifamily households for 2002 are from the City's EDNSP Division. Number of multifamily households for 2001 and 2003 are interpolated between existing data from the City and PSRC. 2. Year 2000 population and employment is from PSRC. Years 2001, 2002, and 2003 were developed using the average annual growth rate from PSRC's 2000 to 2010 numbers. 3. Single-family households are from the City's utility billing records and are a total as of December of each year. 4.1.2 Population and Demographic Forecasts Tables 4-2 and 4-3 present high and low pop~lation and demographic forecasts for the water 'service area. The high forec~st is based on the City EDNSP Division's city- wide demographic forecasts. The low forecast is based solely on PSRC's planning numbers within the water service area. The high and low scenarios account for the inherent variability in demographic projections. Demographic projections were prepared for 2005, 2011 (the six-year planning horizon), 2025 (the 20-year planning horizon), and buildout under existing planning assumptions. The high forecast is not necessarily the greatest level of growth that the City may ultimately experience, but it is the highest level of growth that may be expected based on the work by the City'S EDNSP Division, which based its projections on existing zoning and allowable density of growth at a parcel level. The City's 2030 projections are based on its Buildable Lands database, which estimates the capacity under existing planned development conditions. For water planning purposes, the City's forecasts are considered buildout numbers. The buildout forecasts prepared by the City are used 4-2 R. W. Beck Renton_eh4 Planning. doc 1017104 PLANNING DATA AND WATER DEMAND FORECASTS for buildout estimates in both the high and low projections presented in Tables 4-2 and 4-3. The 2003 population and demographic estimates in Table 4-1 are used as the baseline numbers for developing both the high and low projections. The differences between the high and low projections are based on the average annual growth rates used between 2003 and buildout. The high projection uses average annual growth rates consistent with the City'S forecasts. The low projection uses average annual growth rates consistent with the rate of growth anticipated by PSRC. While both the high and low scenarios assume that the same amount of growth will ultimately occur within Renton's water service area, the high projection assumes that growth will happen more quickly than is represented by the low projection. A moreidetailed description of the methodology used to develop the demographic projections for this Plan is presented in Appendix N. Table 4·2 High Demographic Forecast1 Single·Family Multifamily Year Population2 Households Households Employees 2005 50,819 12,122 10,257 57,022 2011 57,299 12,791 12,660 65,435 2025 77,628 14,501 20,688 90,210 Buildout 89,300 15,175 25,681 99,830 1. The high demographic projections use the 2003 historical demographics as a baseline and the City's 2030 demographic forecast for buildout. Projections for 2005, 2011, and 2025 were developed by applying annual growth rates beginning with the 2003 demographics and using the City's 2030 forecasts. 2. The City EDNSP Division does not maintain population estimates. Therefore, population is calculated using 2.5 people per household for single·family residences and 2.0 people per household for multifamily residences. People per household were derived from 2000 census data for the City of Renton. Table 4·3 Low Demographic Forecast1 Single-Family Multifamily Year Population2 Households Households Employees 2005 50,121 11,837 10,027 56,555 2011 53,205 12,124 11,560 63,317 2025 61,157 12,821 16,113 82,406 Buildout 89,300 15,175 25,681 99,830 1. The low demographic projections use 2003 historical demographics as the baseline and the City's 2030 demographic forecasts for buildoul Intenmediate year projections were developed using the average annual growth rates from PSRC demographic forecasts, as well as the buildout forecasts. 2. The City EDNSP Division does not maintain population estimates. Therefore, population is calculated using 2.5 people per household for single-family residences and 2.0 people per household for multifamily residences. People per household were derived from 2000 census data for the City of Renton. Renton_ eh4 Planning. doc 1017/04 R. W. Beck 4-3 Chapter 4 4.2 Historical and Existing Water Use Information 4.2.1 Service Connections Estimates of the City's water service connections were obtained for 1998 through 2003, and include residential, non-residential, and wholesale customers. Total numbers of service connections by customer class were provided by the City's Billing Department and are shown in Table 4-4. Residential connections are separated into single-family and multifamily classes of service. Single-family connections include mobile hoines, townhouses, and connections classified as senior citizens. Typically there is one service connectio~ for each single-family customer. Therefore, single- family connections are equal to the number of single-family households. Multifamily connections include duplexes, triplexes, four-plexes, apartments~ and RV _parks. There are multiple households served for each multifamily connection. In 2000 the City changed its utility billing software and at that time began recording irrigation as a separate class. Prior to 2000, irrigation was included primarily within the commercial-class, and to a lesser extent within the multifamily and government classes. As a result, there is a decrease in the number of commercial and multifamijy connections recorded between 1999 and 2000. - The number of connections for Renton's wholesale customers has remained constant at one for Skyway. The total number of connections has increased steadily during the past six years, with the largest increase occurring from 2001 through 2003 at an average of 3.3 percent. This increase in the total number of connections is mostly attributed to an increase in residential connections. Single-family connections have increased steadily, but the most significant number of new connections has occurred with the multifamily class. The most significant increase in multifamily connections of 6.9 percent occurred from 2002 to 2003. In other years the increase in multifamily connections was between 2 and 4 percent. The number of commercial connections has decreased during the past SIX years, while there has been a slight increase in the industrial and government classes. 4.2.2 Source Production Water for all of the City's customers is provided primarily by the City'S wells and Springbrook Springs. Some water is purchased from the City of Seattle to help serve the Boeing Plant Area. Approximately 64 percent of the Boeing Plant Area demand is supplied from the Seattle supply and approximately 36 percent from Renton's wells (based on 2003 consumption records). However, in the future Renton plans to serve the Boeing Plant Area solely from its own sources of supply. The City has five primary wells that supply all of its water. The City's supervisory control and data acquisition (SCADA) system records flow from each of the wells every two minutes. The historical production, shown in Table 4-5, is aggregated into 4-4 R. W. Beck Renton_eh4 Planning. doc 1017104 PLANNING DATA AND WATER DEMAND FORECASTS monthly and annual totals for 1998 through 2003. Well production, wholesale purchases, and total historical production are presented. Between 1998 and 2003 the amount of water purchased from Seattle represented between 0.5 and 3 percent of the total water produced. Prior to 1999, Seattle served the Boeing Plant Area directly from its transmission mains and the water that Renton purchased from Seattle was primarily for testing of Tiffany Park and Fred Nelson Booster Pump Stations. These two stations are located at interties with the City of Seattle transmission lines. In 1998, Renton purchased very little water (19,900 cd) from Seattle. In 1999 meters were installed on Seattle's transmission mains and Renton entered into a wholesale agreement with Seattle to purchase water to serve the Boeing Plant Area. As a result, in 1999 there was a significant increase in the amount of water purchased (125,765 cd) from Seattle. Since 1999 the waier purchased from Seattle has decreased. The most significant decrease occurred from 2001 to 2002, decreasing by 32 percent. Since the Boeing Plant Area is the primary consumer of water purchased from Seattle, the fluctuations in purchases are primarily the result of changing demands at that site. Renton _ eh4 Planning. doc 10/7/04 R. W. Beck 4-5 PLANNING DATA AND WATER DEMAND FORECASTS Table 4·4 Historical Service Connections1 Residential Non·Residential Wholesale Year Single·Family2 Multifamily3 Commercial Industrial4 Government5 Irrigation6 Skyway Total, 1998 10,475 1,342 1,194 425 157 NA 1 13,595 1999 10,633 1,394 1,229 475 160 NA 1 13,893 2000 10,830 1,361 1,012 462 171 386 1 14,224 2001 11,060 1,384 1,044 468 171 408 1 14,537 2002 11,357 1,413 1,042 578 178 427 1 14,997 2003 11,743 1,510 1,005 574 193 480 1 15,507 1. Number of connections are as recorded by the City at the end 6feach year. 2. Single-family connections include mobile homes and townhouSes as well as service connections classified as senior citizen. 3. Multifamily connections include duplexes, tJiplexes, four-plexes, and RV par1<s. 4. Industrial indudes connections for fire protection and hydrants at industJial sites. 5. Government indudes connections for fire protection, par1<s, street sewers, and City Hall. 6. Irrigation used to be included in the multifamily, industrial, or commercial connections (prior to year 2000). When new utility billing software was installed, irrigation connections were separated out as a separate class. Rentor ~"4 Planning.doc 1017104 R. W. Beck 4-6 PLANNING DATA AND WATER DEMAND FORECA~ -' Table 4·5 Historical Water Production (ccf) Annual Year January Februa!1 March A~ril Ma~ June Jul~ August September October November December Total Well Production: 1998 255,744 233.928 258.637 255.240 296.077 314.517 415.359 452.580 382.140 286.315 260.022 275,768 3,686,328 1999 265.649 242,153 268.881 272.543 298.213 350.143 389.805 378.880 361.923 286.540 257,704 251.710 3,624,146 2000 254.664 239.800 260.044 260.670 288.399 332.108 426.904 449.982 334,449 293.005 251.335 257,434 3,648,793 2001 257.225 258.591 279.656 262.630 290.031 315.335 384.620 379.655 304.105 258.881 232,753 239.681 3,463,163 2002 240.346 218.011 245.687 240.554 274.795 352.274 412.908 436.157 349.131 282.980 234.162 242.145 3,529,152 2003 240.740 209.178 232.800 230.842 281.381 410.531 501.530 471.310 356,471 272,443 242.292 250.030 3,699,549 Purchased From Seattle1: 1998 3.100 100 0 12.700 0 0 0 0 0 3.900 100 0 19,900 1999 8.124 10.936 8,709 9.587 8,473 13.906 10.577 14.842 11.321 9.868 11.200 8.222 125,765 2000 7.668 9.654 7.200 8.653 7.921 9.257 13.554 13,430 10.628 9.315 7.257 7.270 111,807 2001 6.302 7,475 7.178 7.943 8.950 8.897 10.485 9.371 9.351 8,454 7.987 9.501 101,894 2002 7.178 7.123 6,403 7.075 4.909 5,409 4.987 6,490 5.372 5.591 4,451 4.090 69,078 2003 5.222 4,434 4.212 4.160 5.586 5.396 6.903 6.552 6.160 4,458 4.958 4.273 62,314 Total Historical Production: 1998 258.844 234.028 258.637 267.940 296.077 314.517 415.359 452.580 382.140 290.215 260.122 275,768 3,706,228 1999 273.773 253.089 277.590 282.130 306.686 364.049 400.382 393.722 373.244 296,408 268.904 259.932 3,749,911 2000 262.332 249,454 267.244 269.323 296.320 341.365 440,458 463,412 345.077 302.320 258.592 264,704 3,760,600 2001 263.527 266.066 286.834 270.573 298.981 324.232 395.105 389.026 313,456 267.335 240,740 249.182 3,565,057 2002 247.524 225.134 252.090 247.629 279,704 357.683 417.895 442.647 354.503 288.571 238.613 246.235 3,598,230 2003 245.962 213.612 237.012 235.002 286.967 415.927 508.433 477.862 362.631 276.901 247.250 254.303 3,761,863 1. Purchased water for 1999 through 2003 was through the Boeing Seattle meters; for 1997 and 1998 it was through Seattle intertie No. 39. In 1999 a small amount of water (less than 1 cc~ was purchased through Seattle meter Nos. 33 and 38. Renton _ Ch4 Planning.doc 1017/04 R. W. Beck 4-7 Chapter 4 4.2.3 Consumption Table 4-6 shows the annual consumption by customer class for 1998 through 2003 for the City as reported by the City's Billing Department. Annual·average single-family consumption for 1998 through 2003 was 992,735 ccf (2.0 mgd). Single-family consumption represent~ approximately 60 percent of the total residential consumption. Annual average multifamily consumption for 1998 through 2003 was 675),935 ccf (1.4 mgd). This most significant change in multifamily consumption during this time was from 1999 to 2000, when it decreased by 6.7 percent. This was due in part to the removal of irrigation cons1lIl1ption from this customer class. Irrigation consumption is now counted as a separate non-residential customer class, which was created in 2000 when the City converted to its new billing software. Prior to 2000, irrigation demands were primarily part of the commercial or industrial classes, but also partly incorporated in multifamily demands. Total residential consumption is approximately 53 percent of the' City's total consumption for 1998 through 2003. It is likely that the decrease in commercial consumption from 1999. to 2000 was primarily the result of moving irrigation consumption to a separate class. The consumption trends for most other non-residential customer classes have remained fairly consistent from 1998 through 2002. From 2002 to 2003, some significant changes occurred in the consumption for two of the non::.residential classes. Irrigation consumption increased by approximately 28 percent from 2002 to 2003 and industrial consumption decreased by approximately 30 percent during that same time. Some of the difference in irrigation and industrial consumption is attributable to corrections made in coding of some customer accounts. Variations in deman~ can also be attributed to variations in climate and to the downturn in Boeing's business in 2003. Wholesale consumption shows the amount of water sold to Skyway. There has been an overall decline in consumption since 2000, which may be due to a number of different factors such as climate variations, increased conservation, or increased supply from other sources (in addition to water purchased from Renton, Skyway also has well sources and purchases water fromSeattle). Consumption supplied through the City's interties is primarily water used for emergency purposes. The City has emergency interties with Kent, Seattle, and Tukwila. The water supplied through the City's interties in 2001 through 2003 was through the intertie with Kent. Periodically Kent performs testing of its pump station near its emergency intertie with Renton, which results in some water flowing from Renton to Kent. Occasionally Kent also uses water through this intertie if facilities are not operating due to maintenance or if there are temporary problems with its sources. The City has three customers that are considered large water users, consuming an average of 100,000 gpd or more. These are: the Boeing Plant, the King County Wastewater Treatment Plant, and the City's wholesale customer, Skyway. Additional discussion about the City's large water users is included in Chapter 5, Conservation Program. 4-8 R. W. Beck Renton_ eb4 Planning. doc 1017/04 PLANNING DATA AND WATER DEMAND FORECASTS Non-revenue water is the difference between the total production (shown in Table 4-5) and the total consumption. Since 1998 the City has made significant reductions in its non-revenue water consumption, reducing it from approximately 17 percent in 1998 to approximately 12 percent in 2003. The average annual percentage of non-revenue water for 1998 through 2003 is 14 percent. The City has systematically been replacing old steel and asbestos cement pipe, as well as aged pipe of other materials. The City plans to also continue to look for ways to identify other potential sources of non- revenue water, such as inaccuracies in billing information records and service meters. The average daily consumption for each year from 1998 through 2003 has remained relatively constant at approximately 6.3 to 6.8 mgd. The total average daily consumption for 1998 through 2003 is 6.5 mgd (3,158,564 ccf). A more detailed record of c<?nsumption by month and by class for 1998 through 2003 is included in Appendix M, Historical Water Consumption and Production. Renton_eh4 Planning. doc 1017104 R. W. Beck 4-9 PLANNING DATA AND WATER DEMAND FORECASTS Table 4·6 Historical Water Consumption (ccf) Residential Non-Residential Single-Multi-Subtotal Year Family family Residential Commercial Industry 1998 1,011,685 689,047 1,700,732 927,210 208,098 1999 962,936 705,223 1,668,159 893,038 332,686 2000 985,416 657,686 1,643,102 746,440 339,741 2001 930,509 642,198 1,572,707 745,012 291,619 2002 984,636 648,142 1,632,778 698,747 304,605 2003 1,081,229 713,313 1,794,542 663,461 213,943 Average 1998-2003: 992.735 675,935 1.668,670 778.985 281,782 1. Prior to 2000, the City's billing software recorded irrigation consumption within other customer classes. 2, Wholesale consumption is water sold to Skyway Water and Sewer District. Government 139,814 131,299 150,698 126,740 130,852 169,747 141.525 Irrigation1 NA NA 258,687 211,870 272,086 376,700 279.836 3. Renton has emergency interties with Kent, Tukwila, and Seattle. The consumption for 2001-2003 was through the Kent intertie. Subtotal Retail Sales 2,975,854 3,025,182 3,138,668 2,947,948 3,039,068 3,218,393 3,057.519 Non-Total Wholesale2 Interties3 Revenue4 Consumption5 94',461 0 17.16% 3,070,315 101,279 O· 16.63% 3,126,461 102,330 0 13.82% 3,240,998 83,363 51,364 13.53% 3,082,675 85,374 370 ,13.16% 3.124,812 87,260 470 12.11% 3,306,123 92.345 8.701 14.00% 3.158,564 4. Non-revenue water is the difference between total source production and total consumption. The number shown includes unaccounted for non-revenue water (leaks and inaqcurate meters). and accounted for non-revenue water (main flushing and fire fighting). 5. Includes retail and wholesale water sales. Does not include non-revenue water. Renlo' ~~4 Planning.doc 1017104 R. W_ Beck 4-10 PLANNING DATA AND WATER DEMAND FORECASTS 4.2.4 Water Use Historical water use was calculated on a per household and per employee basis for the period 1998 through 2003. Table 4-7 shows the historical water use for single-family, multifamily, and non-residential customer classes, as well as the 1998 to 2003 average for each. The number of multifamily households and employees for 1998 and 1999 was not available. Therefore, per unit water use was not calculated for 1998 and 1999 for multifamily or employees. From year to year there WIll always be slight fluctuations in water use due to natural variability in weather and climate. However, over longer periods of time .trends resulting in changes in use patterns become evident. Single-family water use shows a significant decrease from 1998 to 2002, decreasing from 198 gallons per household per day (gal/hh/day) to 178 gal/hh/day, or approximately 10 percent during the four years. In 2003 the average single-family water use increased, but it was still less than average water use throughout the 1990s. The historical average single-family water use for 1998 to 2003 is 185 gal/hh/day. Multifamily water use also shows a downward trend from 2000 to 2002, decreasing from 150 to 142 gal/hh/day. Similar to single-family water use, there was an increase from 2002 to 2003. The historical average multifamily water use is 147 gallhh/day for 2000 through 2003. This is less than the multifamily water use of 185 gallhhlday, reported in the City'S 1998 Water System Plan. However, it is difficult to determine how much of the difference in water use is due to a reduction in multifamily use versus the separation of irrigation water from the multifamily class after 2000. Non- residential water use on a per employee basis remained fairly constant between 2000 and 2003 at approximately 56 gallons per employee per day (gallempllday). Table 4-7 also shows the non-revenue water use for Renton from 1998 through 2003. Non-revenue water is the difference between the total water produced and the total consumption. Unaccounted for, non-revenue water can be attributed to water main leaks, inaccurate meters, or other inaccuracies in recording either the total production or consumption. Accounted for, non-revenue water may be from water main flushing, fighting fires, or other circumstances where hydrants or taps are opened. Figure 4-1 illustrates graphically the downward trend Renton experienced with its non-revenue water, decreasing from approximately 17 percent in 1998 to 12 percent in 2003. The 1998 to 2003 average non-revenue water is 14.4 percent. Renton_eh4 Planning. doc 1017/04 R. W. Beck 4-11 Chapter 4 Table 4·7 Historical Per Unit Water Use Year Single-Family (gal/hh/day) Multifamily1 (gallhh/day) 1~ 1~ ~ 1~9 1~ ~ . 2000 186 150 2001' 172 144 . 2002 178 142 2003-189 153 Average (1998-2003) -185 147 1. Multifamily water use indudes waJer use for multifamily households and RV parks. Non-Residential2 (gal/empl/day) NA NA 56 56 55 56 56 Non-Revenue 17.2% 16.6% 13.8% 13.5% 13.2% 12.1% 14.4% 2. Water consumption used to calculate the non-residential water use per employee indudes water used by all non-residential dasses: industrial, commercial, irrigation, and government . 20T---------------------------------------------------~ 18+---------------------~----------------------------~ 16 .. S 14 ~ ~ 12 s::: ~ ~ 10 C o ~ 8 s::: ~ t 6 D. 4 2 o Figure 4·1 1998 1999 2000 Year 2001 Historical Percent of Non·Revenue Water 2002. 2003 4.2.5 Average Day, Peak Day, and Peak Hour Demands Table 4-8 shows the average day, peak month, peak day, and peak hour demands on a million gallon per day basis for the period 1998 through 2003. Peak month and peak day demands have remained fairly consistent during the past five years. Average day and peak hour demands decreased slightly in 2001 and 2002. As mentioned in the 4-12 R. W. Beck Renton_eh4 Planning.doc 1017104 PLANNING DATA AND WATER DEMAND FORECASTS Section 4.3.2, "Source Production," the lower water use in 2001 and 2002 is likely the result of a combination of factors such as climate variations and potential increases in conservation. Peaking factors are also presented in Table 4-8. The peak month to average day peaking factor was calculated directly from the average day and peak month consumption for each year. The average peak month peaking factor for 1998 through 2003 was 1.40. The peak day to average day peaking factors were calculated from the historical data for each year. The peak day to average day peaking factor average for 1998 through 2003 is 1.74. This is slightly less than the peak day to average day peaking factor of 1.98 reported in the City's 1998 Water System Plan. The peak hour to average day peaking factor was taken from year 2000 SCADA data and used to calculate the peak hour demands for each year. The peak hour to average day peaking factor is 4.41. The average peak hour to peak day peaking factor is 2.56. Table 4-8 Historical Average and Peak Demands and Peaking Factors Demands (mgd) Peaking Factors Average Peak Peak PMD:ADD PDD:ADD PHD:ADD PHD:PDD Day Month Peak Day Hour Peaking Peaking Peaking Peaking Year Demand Demand1 Demand Demand2 Factor Factor Factor3 Facto'" 1998 7.60 10.9 15.2 33.5 1.44 2.00 4.41 2.21 1999 7.68 9.72 11.5 33.9 1.27 1.49 4.41 2.95 2000 7.71 10.9 13.6 34.0 1.41 1.76 4.41 2.50 2001 7.31 9.28 12.0 32.2 1.27 1.64 4.41 2.70 2002 7.37 10.5 12.5 32.5 1.43 1.69 4.41 2.60 2003 7.71 12.1 14.1 34.0 1.57 1.83 4.41 2.41 Average (1998·2003) 7.56 10.57 13.1 33.4 1.40 1.74 4.41 2.56 1. The peak month for 1999 was June, otherwise the peak month occurred In July or August each year. The peak month demands were taken from billing consumption records. 2. The peak hour demand estimates were calculated by multiplying the average day demand by the peak hour peaking factor. 3. The peak hour to average day peaking factor was determined from year 2000 SCADA data. 4. The peak hour to peak day peaking factor was calculated from the peak day to average day and peak hour to average day peaking factors. 4.2.6 Diurnal Variations in Demands In addition to seasonal variations, water use fluctuates considerably over the course of each day. Mornings and evenings are typically peak:..use times, when people prepare for work, wash, prepare meals, and water lawns and gardens. Some components of the water system, particularly distribution piping, reservoirs, and pump stations, need to be sized to provide water at adequate service pressures during peak water-use periods. Since demands during these peak periods can be significantly higher than peak day demands, it is important to establish the magnitude of these demands for evaluation and planning purposes. Determining how water-use patterns change over the course of a typical day requires that consumption be measured at many points Renton_eh4 Planning. doc 1017/04 R. W. Beck 4-13 Chapter 4 during the day. Systems that are primarily residential typically have the largest peak in demands in the evening and the second largest peak in the early morning . . A representative diurnal curve for the City's water service area is shown in Figure 4-2. The City's diurnal curve was developed using year 2000 SCADA data. The largest peak demand in the City occurs at approximately 6:00 in the evening. The second- largest peak (1.29) occurs at approximately 4:00 a.m., which is earlier in the day than would be expected in a system driven strictly by residential demands. However, a second peak in demands (1.23) occurs in the morning at approximately 9:00 a.m. The early morning peak may result from impacts of non-residential demands, which account for almost half of the City's total demands. 1.60 1.40 1.20 1.00 ~ ... u. go 0.80 :;: ... .. Q. 0.60 0.40 0.20 0.00 0 6 12 18 24 Time (Hour) . Figure 4·2 City's Diurnal Curve 4.3 Water Demand Forecasts Two different demand forecast scenarios were developed using the high demographic projections presented in Table 4-2. Table 4-9 shows projected per unit water use without additional conservation. The water use factors shown in Table 4-9 assume that water use remains similar to the water use that Renton has recently experienced, using the 1998-2003 average water use factors to project the per unit water use into the future. This assumes that no additional conservation will occur in the future that 4-14 R. W. Beck Renton_eM Planning. doc 1017104 PLANNING DATA AND WATER DEMAND FORECASTS will lower the City's per household and per employee water use. Table 4-9 presents per household and per employee water use factors for 2005,2011,2025, and buildout. The second scenario assumes that the City will continue to experience reductions in per household and per employee water use due to conservation. For water planning purposes, the amount of conservation assumed is 0.5 percent per year from 2005 through 2020 for single-family, multifamily, and non-residential water use. After 2020 it is assumed that water use per household and per employee will remain fairly constant and that the City will not experience significant reductions in water use. Table 4-10 shows the water use as gallons per household and per employee with these conservation assumptions. Water use in 2005 is the same for both scenarios. Renton has experienced an average reduction in single-and multifamily water use per connection between 1 and 2 percent per year since 1998. For multifamily water use it is difficult to determine how much of the reduction in water use is attributable to the removal of irrigation demands that were partially included in multifamily water use prior to 2000. Additionally, Renton benefits from the City of Seattle's conservation program. Seattle has a target for water conservation of 1 percent per year through 2010 (which has already been achieved). Thisset of projected demands assumes that Renton will continue to experience a reduction in water use through 2020. However, it will be somewhat less than what was experienced during the past five years. Reductions will continue to occur as a result of the plumbing code efficiency improvements as redevelopment and new development continues. Other factors such· as smaller 'lot sizes and stronger growth in multifamily development will also potentially reduce water use per household and per employee within Renton. A more detailed discussion of conservation and the City's conservation program is presented in Chapter 5. Projected non-revenue water use (as a percentage of the total) is the same for both scenarios, with and without conservation. As discussed in Section 4.3-.4, "Water Use," non-revenue water has decreased significantly in the last five years. The City continues to replace aging pipe and has a systematic approach to reducing its non- revenue water use. However, it recognizes that it takes time to address sources of non- revenue water. It is assumed that non-revenue water will be approximately 12 percent in 2005 and reduced to 11 percent by 2011, and to at least 10 percent by 2025. Table 4·9 Future Per Unit Water Use (Without Additional Conservation)l Single~Family Multifamily Non-Residential Year (gallhh/day) (gallhh/day) (gallempllday) Non-Revenue2 2005 184 145 56 12% 2011 184 145 56 11% 2025 184 145 56 10% Buildout 184 145 56 10% 1. Assumes that no additional reduction in water use per household or per employee will occur in the future. 2. The City has continued to reduce its non-revenue water use. With a systematic approach to addressing non-revenue water use, the City expects to be able to reduce the percentage of total water consumption to 10 percent or better by 2025. Renton_eh4 Planning. doc 1017104 R. W. Beck 4-15 Chapter 4 Table 4-10 Future Per Unit Water Use (With Additional Conservation)1 Single-Family Multifamily Non-Residential Year (gallhh/day) (gallhh/day) (gallempllday) Non-Revenue2 2005 184 145 56 12% 2011 178 141 54 11% 2025 170 134 52 10% Buildout 170 134 52 10% 1. Additional conservation is 0.5 percent per year through 2020. 2. The City has continued to reduce its non-revenue water use. With a systematic approach to addressing non-revenue water use, the City expects to be able to reduce the percentage of total water consumption to 10 percent or better by 2025. Projected average day and peak day demands are presented in Table 4-11 and 4-12 for each of the planning years. Projected demands for the direct retail service area include single-family, multifamily, non-residential, and non-revenue. These projected demands were calculated using the projected water use per household and per employee discussed above, and the high demographic forecasts presented in Table 4-2. Table 4-11 presents demand projections that assume no additional conservation and are based on water use presented in Table 4-9. Projected demands presented in Table 4-12 assume that the City will achieve additional conservation between 2005 and 2020 and are based on water use factors shown in Tabie 4-iO. Figure 4-3 shows the projected average and peak day water use, with and without conservation. Table 4-11 Forecast Demands (Without Additional Conservation)1 . Average Day Demands (ADD) (mgd) Peak Day Demands (POD) (mgd) 2005 2011 2025 Buildout 2005 2011 2025 Buildout Single-Family 2.24 2.37 2.68 2.81 4.26 4.50 5.10 5.33 Multifamily 1.51 1.86 3.04 3.78 2.86 3.54 5.78 7.17 Non-Residential 3.19 3.66 5.05 5.59 6.07 6.96 9.60 10.62 Non-Revenue2 0.83 0.87 1.08 1.22 1.58 1.65 2.05 2.31 Subtotal Direct Service 7.78 8.76 11.85 13.39 14.78 16.64 22.52 25.44 Skyway3 0.21 0.22 0.25 0.25 0.71 0.75 0.82 0.82 Total Demands 7.99 8.98 12.09 13.63 15.49 17.38 23.34 26.26 1. These projections were developed uSing the High DemographiC Forecast ThIS set of forecast demands assumes that the current water use per household and per employee remains constant with what recent water use. has been. It conservatively assumes that no additional conservation occurs within Renton's water service area, but that the same level of conservation continues. 2. It is assumed that non-revenue water will be approximately 12 percent in 2005, and that by 2011 the percent of water consumption recorded as non-revenue water will be reduced to at least 11 percent By 2025, fi will be at least 10 percent. 3. Wholesale demands for Skyway are taken from the Skyway Water and Sewer District 2004 Comprehensive Plan -Water and Sewer Systems. Forecast demands were only available through 2022; 2025 and buildout projections are equal to the 2022 forecast The peak day peaking factor used was 3.34. 4-16 R. W. Beck Renton _ eh4 Planning. doc 1017104 PLANNING DATA AND WATER DEMAND FORECASTS Table 4·12 Forecast Demands (With Additional Conservation)1 Average Day Demands (ADD) Peak Day Demands (POD) (mgd) (mgd) 2005 2011 2025 Buildout 2005 2011 2025 Buildout Single-Family 2.24 2.30 2.49 2.58 4.26 4.36 4.72 4.90 Multifamily 1.51 1.81 2.82 3.44 2.86 3.43 5.35 6.54 Non-Residential 3.19 3.55 4.68 5.19 6.07 6.75 8.89 9.86 Non-Revenue2 0.83 0.84 1.00 1.12 1.58 1.60 1.90 2.13 Subtotal Direct Service 7.78 8.50 10.98 12.33 14.78 16.14 20.86 23.43 Skyway3 0.21 0.22 0.25 0.25 0.71 0.75 0.82 0.82. Total Demands 7.99 8.72 11.23 12.58 15.49 16.89 21.68 24.25 1. These projections were developed USing the High Demographic Forecast. ThIS set of forecast demands assumes that water use In 2005 IS consistent with the recent historical water use recorded by the City, but that between 2005 and 2020 there will be an approximate reduction in per household and per employee water use of 0.5 percent per year. This level of conservation is slightly less than the reduction in water use that· Renton has historically been experiencing in the last five years. It is consistent with the City of Seattle's conservation goals (Renton is impacted by Seattle's conservation program based on its geographic location) as well as other utilities in the region. (City of Seattle's actual conservation has exceeded its conservation goals). This set of forecast demands assumes that reductions in water use per household and per employee as a resuH of conservation will remain relatively constant after 2020. 2. It is assumed that non-revenue water will be approximately 12 percent in 2005, and that by 2011 the percent of water consumption recorded as non-revenue water will be reduced to at least 11 percent. By 2025, non-revenue water is projected to be 10 percent or better. 3. Wholesale demands for Skyway are taken from the Skyway Water and Sewer District 2004 Comprehensive Plan -Water and Sewer Systems. Forecast demands were available through 2022 and are considered buildout demands. 2025 and buildout projections are equal to the 2022 forecast The peak day peaking factor used was 3.34. 30.00 .----------------------''------------, 25.00 20.00 :e-m .§. '" 15.00 ..., ---.. ,;,;, .....•. -... -.. .. c ca E III C 10.00 ... -.... ... -... -... ......... .,. - ......... -... lit< ... 5.00 0.00 +--------------,-----------,--------' 2005 2015 2025 TIme --ADD Vvilhout Additional Conserv ation _ PDD Vvithout Additional Conserv ation ..... ,ADD Vvilh Additional Conservation .... , POD Vvith Additional Conservation Figure 4·3 Average and Peak Day Forecast Demands Renton_eh4 Planning. doc 1017104 R. W. Beck 4-17 Chapter 4 Wholesale demands for Skyway are -also included in the forecasts and are taken directly from Skyway's 2004 water plan update. Projected demands were developed through 2022 in Skyway's water plan. Those are considered buildout demand projections and for Renton'~ plann:iTIg purposes, those 2022 projections are used for 2025 and buildout projections in this Water System Plan. Average annual growth in wholesale demand for the City is approximately 0.9 percent, based on a demand growth rate of approximately 25 equivalent residential units (ERUs) per year. It is projected that Skyway will receive approximately 26 percent of its water from Renton, 57 percent from Seattle, and the remaining 17 percent from its own wells. The difference between the demand forecasts with and without additional conservation by 2011 is approximately 3 percent. By buildout there is approximately an 8 percent difference between the forecasts with and without additional conservation. These two sets of projected demands provide a somewhat narrow range of potential future demand levels. Actual demands may be somewhat more or less than the range of demands presented here. Other variables other than conservation can also impact long-term water demands, which include but are not limited to climate variations and change, economic impacts and rates, land use, and future development. 4.4 Equivalent Residential Units Table 4-13 presents the historical and projected ERUs for the City. 'The historical ERUs were calculated by dividing the total consumption for each year by the single- family water use in gallons per household for each year. Future ERUs were calculated by dividing the projected average day demands (assuming no additional conservation) by the 1998 to 2003 average single-family water use of 185 gallons per household per day. Table 4·13 Historical and Forecast Equivalent Residential Units Year Historical ERUs 1998 1999 2000 2001 2002 2003 Future ERUs 2005 2011 2025 Buildout Equivalent Residential Units 30,812 33,405 34,495 35,039 35,053 34,954 42,037 47,351 64,071 72,380 1. Historical equivalent residential units (ERUs) are calculated from the total consumption divided by the single-family water use per household for each year. The future ERUs are calculated by dividing future demand projections by the existing single-family water use per household (185 gaVhh/day). This is the equivalent number of single-family households selVed by the City of Renton. 4-18 R. W. Beck Renton_eh4 Planning. doc 1017104 PLANNING DATA AND WATER DEMAND FORECASTS 4.5 Boeing Redevelopment The Boeing Plant Area, located on the western boundary of the City just south of Lake Washington and west ofI-405 (see Figure 2-3), may experience redevelopment in the future as Boeing evaluates whether to consolidate its operations and space in that location. The City recently had an environmental impact statement (EIS) prepared that evaluates four different alternatives for future growth in the Boeing area (which includes the Boeing Plant Area and approximately 15 acres of contiguous privately owned property). Evaluation of these four alternatives will allow Renton to plan and prepare for the types and amount of redevelopment that may occur in the future. For purposes of this Water System Plan, Alternative Nos. 2 and 4 from the EIS were considered to evaluate the water demands that the City may need to serve in the future. A full description of all four alternatives can be found in the Boeing Renton Comprehensive PlanAmendment Draft EIS(May 2003). Below is a brief summary of Alternative Nos. 2 and 4. Alternative No.2 plans for partial redevelopment. Boeing would continue to operate on the west side of the site. Redevelopment on the east side of the site would continue through 2015 and include light industrial, retail, and office space. This alternative would not include any residential development in the area. Alternative No.4 assumes that Boeing would continue using the entire site through 2015 and then begin completely phasing out its use, leaving the site by 2030. Redevelopment from 2015 through 2030 would include mixed-use retail, offices, and laboratory space. The area would also include some multifamily residential development with condominiums and apartments. The total number of employees projected for 2015 under Alternative No. 2 is approximately 14,700. This includes both remaining Boeing employment and employment due to redevelopment. The number of employees for this alternative is consistent with the number of employees planned for that area in the City EDNSP Division's 2030 demographic forecasts. Employment for this area under Alternative No.2 is consistent with the high demographic projections in Table 4-2. (Employment for 2011 and 2025 would be somewhat higher for Alternative No.2 than the high demographic forecast, since Alternative No.2 has this area reaching a capacity of approximately 14,700 employees by 2015 rather than buildout.) Alternative No. 4 projects approximately 26,500 more employees at buildout for the Boeing Plant Area than the high demographic projection presented in Table 4-2. There are also more employees projected for the area by 2015 then what was assumed in the high demographic projections presented earlier in this chapter. Since the City demographic forecasts are only for 2030, it is difficult to determine the rate of growth for the redevelopment of the Boeing area. For planning purposes, it is assumed that for the high demographic projections all of the growth in the Boeing Redevelopment area will occur by 2015. Therefore, an additional 4,800 employees will be added for Alternative No. 4 at 2015. Table 4-14 summarizes the number of additional employees for the Boeing Redevelopment area under Alternative No. 4 and the total Renton,-Ch4 Planning.doc 10/7/04 R. W. Beck 4-19 Chapter 4 demographic forecasts for the City incorporating additional employment with the alternative. Tables 4-15 and 4-16 present water demand projections for Renton's service area, whic4 include employment and residential growth anticipated with Alternative No.4 for the Boeing Redevelopment area. Both tables show projected average and peak day demands for single-family, multifamily, non-residential, and wholesale and were deyeloped using the high demographic projections shown in Table 4-2 and the demographic projections for Alternative No.4 in Table 4-14. Table 4-15 presents demand projections based on no additional water conservation in the future: Table 4-16 presents demands that incorporate additional water conservation in the future. The amount of water conservation assumed is described in more detail earlier in this· chapter. Figure 4-4 shows the average and peak day demands, with and without Conservation, projected with Boeing Redevelopment Alternative No.4. Tabl~ 4·14 . Demographic Forecast with Alternative No.4 of the Boeing Redevelopment1 Population2 Single·Family Households3 Additional Households and Employees with Alternative No.4 2005 0 0 2011 403 0 2025 6,416 0 Buildout 9,225 0 Multifamily Households 224 373 3,564 5,125 Total Households and Employees for the Water Service Area with Alternative No.4 2005 50,819 12,122 10,481 ' 2011 57,702 12,791 13,033 2025 84,044 14,501 24,252 Buildout 98,525 15,175 30,806 Employees 4,756 7,927 13,875 26,427 61,778 73,362 104,085 126,257 1. Population and demographic projections for Alternative No.4 of the Boeing Redevelopment are taken from the Environmental Impact Statemen~ 2003. 2. Population for the Boeing EIS assumed 1.8 people per households. Although this differs from the number of people per multifamily household used for the overall demographic projections in this Water System Plan, this number is used for this special scenario of the Boeing Redevelopment 3. The residential growth planned for the Boeing Redevelopment area is only for multifamily households, not single-family. 4-20 R. W. Beck Renton _ eh4 Planning.doc 10/7/04 PLANNING DATA AND WATER DEMAND FORECASTS Table 4·15 Forecast Demands for Alternative No.4 of the Boeing Redevelopment (Without Additional Conservation1) Average Day Demands (ADD) Peak Day Demands (POD) (mgd) (mgd) 2005 2011 2025 Buildout 2005 2011 2025 Buildout Single-Family 2.24 2.37 2.68 2.81 4.26 4.50 5.10 5.33 Multifamily 1.54 1.92 3.57 4.53 2.93 3.64 6.77 8.60 Non-Residential 3.46 4.11 5.83 7.07 6.57 7.81 11.07 13.43 Non-Revenue2 0.87 0.92 1.21 1.44 1.65 1.75 2.29 2.74 Subtotal Direct 8.11 9.31 13.28 15.85 15.41 17.70 25.24 30.11 Service Skyway3 0.21 0.22 0.25 0.25 0.71 0.75 0.82 0.82 Total 8.32 9.53 13.52 16.09 16.12 18.44 26.06 30.93 1. These projections were developed uSing the High Demographic Forecast ThIS set of forecast demands assumes that the current water use per household and per employee remains constant with what recent water use has been. It conservatively assumes that no additional conservation occurs within Renton's water service area, but that the same level of conservation continues. 2. It is assumed that non-revenue water will be approximately 12 percent in 2005, and that by 2011 the percent of water consumption recorded as non-revenue water will be reduced to at least 11 percent. By 2025 and buildout, it is assumed to be 10 percent 3. Wholesale demands for Skyway are taken from the Skyway Water and Sewer District 2004 Comprehensive Plan· Water and Sewer Systems. Forecast demands were only available through 2022; 2025 and buildout projections are equal to the 2022 forecast The peak day peaking factor used was 3:34. Table 4·16 Forecast Demands for Alternative No.4 of the Boeing Redevelopment (With Additional Conservation 1) Average Day Demands (ADD) Peak Day Demands (POD) (mgd) (mgd) 2005 2011 2025 Buildout 2005 2011 2025 Buildout Single-F amily 2.24 2.30 2.49 2.58 4.26 4.36 4.72 4.90 Multifamily 1.54 1.86 3.30 4.13 2.93 3.53 6.27 7.84 Non-Residential 3.46 3.99 5.40 6.57 6.57 7.57 10.26 12.47 Non-Revenue2 0.87 0.90 1.12 1.33 1.65 1.70 2.13 2.52 Subtotal Direct 8.11 9.03 12.31 14.60 15.41 17.16 23.38 27.74 Service Skyway3 0.21 0.22 0.25 0.25 0.71 0.75 0.82 0.82 Total 8.32 9.25 12.56 14.85 16.12 17.91 24.20 28.56 1. These projectiOns were developed USing the HlQh Demographic Forecast ThiS set of forecast demands assumes that water use In 2005 IS consistent with the recent historical water use recorded by the City, but that between 2005 and 2020 there will be an approximate reduction in per household and per employee water use of 0.5 percent per year. This level of conservation is slightly less than the reduction in water use that Renton has historically been experiencing in the last five years. It is consistent with the City of Seattle's conservation goals (Renton is impacted by Seattle's conservation program based on its geographic location) as well as conservation goals of other utilities in the region. (City of Seattle's actual conservation has exceeded its conservation goals). This set of forecast demands assumes that reductions in water use per household and per employee as a result of conservation will remain relatively constant after 2020. 2. It is assumed that non-revenue water will continue to decrease to approximately 12 percent by 2005, and that by 2011 the percent of water consumption recorded as non-revenue water will be reduced to at least 11 percent. 3. Wholesale demands for Skyway are taken from the Skyway Water and Sewer District 2004 Comprehensive Plan -Water and Sewer Systems. Forecast demands were only available through 2022; 2025 and buildout projections are equal to the 2022 forecast. The peak day peaking factor used was 3.34. Renton_eh4 Planning. doc 1017/04 R. W. Beck 4-21 Chapter 4 35.00 30.00 25.00 :;;- c::D 20.00 .§. ... "0 C os 15.00 E .. Q 10.00 . .. --------.-............ ~ .... ~ .. . .. . ....... ........... ;;; ........ - 5.00 0.00 2005 2015 2025 Time --ADD 'Mthout Additional Conserv ation _ POD 'Mthout Additional Cons erv ation -.... -,ADD 'Mth Additional Conservation -.. -,POD IfIIith Additional Conservation Figure 4·4 Average and Peak Day Forecast Demands Including the Boeing Plant Area Redevelopment 4-22 R. W. Beck Renton_ eh4 Planning. doc 1017104 Chapter 5 CONSERVATION PROGRAM The City of Renton is fortunate to have a reliable and adequate supply of high quality water. Renton also has a vigorous business economy and growing population, while its water production, pumping capacity, and water rights are limited. Just as Renton is growing, so is the rest of the region and, likewise, the demands put on the regional water supplies. Renton joins with many other water purveyors in the Puget Sound region to promote the efficient use of water supplies as an important part of sustaining the vitality ofthe City and region. The Washington State Department of Health (DOH) requirements for conservation plans include three main components: water use data collection, water demand forecasts, and a conservation program. Requirements for water use data collection and demand forecasts are included in Chapter 4. The locations of all the data requirements related to Renton's Conservation Plan are presented in Table 5-1, Data Reporting Required by DOH. This chapter presents the City's Water Conservation Program, the third element of its Conservation Plan. The Conservation Program presents the DOH-required elements: an evaluation of conservation measures; conservation measures selected for implementation; effectiveness of the existing Conservation Program; funding for the Conservation Program; and target water-saving projections. This chapter follows the guidelines set forth in the following DOH publications: • 1994 Conservation Planning Requirements (March 1994) • 1997 Water System Planning Handbook (April 1997) • 2004 Municipal Water Law: Interim Planning Guidance for Water System Plan! Small Water System Management Program Approvals (March 2004) 5.1 Conservation Objectives The primary goal of the City's Water Conservation Program is to promote the efficient use of water. Through specific conservation measures, discussed later in this chapter, the City anticipates continued water-use savings. Chapter 4 presents projected per- unit water use and demand forecasts. Projected per-unit water use with and without additional conservation efforts can be found in Tables 4-9 and 4-10. Demand forecasts with and without additional conservation are presented in Tables 4-11 and 4- 12. The term "additional conservation," as used in Chapter 4, refers to future reductions in water use, separate from the historic reductions in water use that have already occurred. Renton_CbS Conservation. doc 1017104 Chapter 5 It is estimated that additional conservation measures will reduce demand by 0.5 percent per year from 2005 through 2020 for single-family, multifamily, and non- residential water use. After 2020 it is assumed that water use per household and per employee will remain fairly constant. 5.2 Reported Data The DOH requires the collection of specific data as part of a utility's conservation plan, and requests that daily, montl1ly, or annual totals, rather than averages, be reported when available. Table 5-1 details the types of data and frequency of collection required by the DOH, and references where the information is presented in this Water System Plan. Table 5·1 Data Reporting Required by DOH Frequency of Type of Data Collection Water System Plan Reference Source of Supply Meter Read daily, but report Table 4-5 Readings only monthly and Historical Water Production annual totals Appendix M Historical Water Consumption & Production Emergency Interties Monthly totai Tab!e 4-5 (amount imported) Historical Water Production Appendix M Historical Water Consumption & Production Wholesale Monthly totals Table 4-5 (amount purchased) Historical Water Production Appendix M Historical Water Consumption & Production Peak Day/Peak Month Each year's peak day Table 4-8 and month totals Historical Average and Peak Demands and Peaking Factors Non-Revenue Water Unaccounted-for water Monthly totals Appendix M H~storical Water Consumption & Production Accounted-for water1 Monthly totals Appendix M Historical Water Consumption & Production Service Meter Readings Single-Family Monthly totals Appendix M Historical Water Consumption & ~roduction Multifamily Monthly totals Appendix M Historical Water~nsu!'lption ~ Production CommerciallGovemmenU Monthly totals Appendix M Industrial (separate records Historical Water Consumption & Production for each category) -----_ ... Agriculture (or Irrigation) Monthly totals Appendix M Historical Water Consumption & Production 5-2 City of Renton Renton_CbS Conservation.doc 1017/04 Type of Data Emergency Intertie (amount purchased and sold) Wholesale (amount sOld) Population Served Economic Data (current rates) Conservation Data CONSERVATION PROGRAM Table 5·1 Data Reporting Required by DOH Frequency of Collection Monthly total Monthly total Annual totals Once per year Water System Plan Reference Appendix M Historical Water Consumption & Production Appendix M Historical Water Consumption & Production Table 4-4 Historical Service Connections Table 11-6 Current City of Renton Water Rate Schedule Chapter 5 1. The City does not currently measure all of its accounted-for non-revenue water, but plans to implement a process for estimating accounted-for non-revenue water within the next six years. 5.3 Regional Conservation Participation The City participates in several regional conservation activities through participation in regional organizations and regional conservation programs. Renton is a member of the Water Conservation Coalition of Puget Sound (WCCPS), a regional organization specifically focused on conservation. The City's membership in the East King County Regional Water Association (EKCRWA) provides potential regional conservation support as well, although this organization is not strictly conservation-focused. In addition to these regional organizations, as a neighboring purveyor of Seattle Public Utilities (SPU) Renton benefits indirectly from SPU's conservation program. Additional discussions about Renton's participation in regional conservation activities are presented later in this chapter. 5.4 Conservation Program Requirements Conservation measures outlined by DOH are grouped into four categories: public education, technical assistance, system measures, and incentives/other measures. DOH identifies both required measures and recommended measures based on system SIze. Conservation measures required for all systems are source meter installation and program promotion. Program promotion involves conducting public outreach through media announcements and programs, distribution of printed material, and informing the public of conservation requirements and benefits. Additionally, if a system has unaccounted-for water that is greater than 20 percent of its total demand, then it is required to implement a leak detection and repair program, evaluate and repair meters, and correct any other system operation problems. Although the City's unaccounted- Renton_ChS Conservation. doc 1017104 R. W. Beck 5-3 Chapter 5' for water is less than 20 percent of its demand, these activities are being performed as part of routine system operation and maintenance. In addition to the conservation measures required for all systems, DOH has additional, recommended measures that must be evaluated' by water systems based on the size of the system and implemented where appropriate. Table 5-2 shows the recommended measures in each of the four categories baSed on a water system's size. Water systems are defined as small,' medium, and large, according to the number of service connections. Renton is a medium-size system (1,000 and 25,000 service connections). A system that will be applying for new water rights in the future must evaluate the recommended conservation measures for the next largest size system (Renton does not /anticipate applying for new water rights in the next 10 years). Table 5·2 Water Conservation Program Measures Recommended by DOH Requirement by Size of S~stem Currently Medium Implemented by Measure Large !Rentonl Small Renton A. Public Education School Outreach X Yes Speakers Bureau X Yes Program Promotion X X X Yes Theme Sho\AJS and Fairs X Yes B. Technical Assistance Purveyor Assistance1 X X Customer Assistance X X Yes Technical Studies X Yes2 Bill Showing Consumption History X X Yes C. System Measures Source Meters (required if requesting X X X Yes water rights) Service Meters X X X Yes Unaccounted-for Water/Leak X X Yes Detection D. Incentives/Other Measures Single-Family/Multifamily Kits X X Yes Nurseries/Agriculture X X Yes2 Landscape Management! Playfields -X X Yes Xeriscaping Conservation Pricing X X X Yes Utility Financed Retrofit , X Seasonal Demand Management X Recycling/Reuse X Yes 1, Skyway Water and Sewer District, Renton's wholesale customer, also purchases water from the City of Seattle and participates in Seattle's reg ional conservation prog rams. 2. Implemented by the Water Conservation Coalition of Puget Sound, of which the City of Renton is a member. 5-4 City of Renton Renton_Ch5 Conservation.doc 10/7/04 CONSERVATION PROGRAM In 2003 the Washington State Legislature adopted amendments to state water laws that are collectively called the Municipal Water Law. The Municipal Water Law requires the DOH to develop water conservation rules by December 2005. It also requires municipal water purveyors to continue to meet current conservation planning requirements (provided in the planning documents and interim guidance cited at the beginning of this chapter) and to continue implementing their current programs. In 2006, after DOH's revised conservation rules are available, the City may choose to reevaluate its Conservation Program and make any adjustments that may be necessary. 5.5 Evaluation of Conservation Measures The City regularly evaluates potential conservation measures for implementation. Following is a description of measures that have been evaluated in the four program areas defined by DOH: Public Education, Technical Assistance, System Measures, and Incentives/Other Measures. Public Education Significant and lasting conservation is unlikely without a strong foundation in public education. In Renton this is addressed primarily through presentations at schools and local events. Environmental education through classroom presentations is targeted to third grade students. During each school year, the City visits approximately 30 different classrooms in 13 Renton elementary schools. The City used to provide well- house tours as part of its education program, but discontinued this activity for security reasons. In addition to school outreach, the City also maintains a speakers bureau. City staff give water resource presentations to community, civic, and business groups upon request. Water conservation issues are typically included as topics in these presentations. As a member of WCCPS, the City supports its mission to promote effectiveness of utility water conservation programs within the Puget Sound region. WCCPS utilizes radio, bus boards, television, newsprint advertising, public events, and industry partnerships to convey its message. As an additional regional conservation measure, the City provides monetary support and participates in the Water-Use It Wisely campaign. The Water-Use It Wisely campaign is a regional public awareness program for water conservation. In addition to the regional programs, the City publishes conservation articles in the Renton Reporter, a locally distributed newspaper, and distributes conservation brochures. The brochures are distributed via direct business requests, through Renton public libraries, and in City Hall. Since 2002 the City has maintained a link from the City's main Web page containing water conservation tips and links to other conservation-oriented Web sites. Conservation information is also included in the City's annual Water Quality and Consumer Confidence reports. Another successful approach has been through special presentations and exhibits at local events. The City has attended local events for many years, and includes Renton_CbS Conservation. doc 1017/04 R. W. Beck 5-5 Chapter 5 conservation topics in the presentations. Events such as the Renton River Days and neighborhood festivals provide opportunities for the City to convey· conservation information and distribute water conservation devices to the public. Technical Assistance Technical assistance includes purveyor assistance, customer assistance, technical studies, and billing consumption history. Technical assistance uses information, studies, codes, and ordinances to inform customers of ways to reduce their water consumption. The City's wholesale customer, Skyway Water and Sewer District, purchases most of .. its water from the City of Seattle, and participates in Seattle's regional conservation program. As a result, Renton does not provide Skyway with pUrveyor assistance. Customer assistance in water conservation is available to the City'S customers in a variety of ways. In addition to publications, 'a conservation Web·page, and a presence at local events as previously mentioned, the City also shares consumption history with its customers. Since 1992 the City's bills have displayed a 12-month consumption history. The billing history gives customers a picture of their water consumption for the last 12 billing cycles, so that they can compare recent water use with the volume of water used in the previous year. If a higher than normal consumption occurs, the City notifies customers and advises them to check for leaks. In' 2002 WCCPS and SPU conducted regional focus groups to determine which . regional education program would be most effective for a public awareness campaign focused on conservation. It was determined that the Water-Use It Wisely materials would be the best regional program to implement. As a member of WCCPS, Renton staff supported the joint committee that decided which program to implement, and Renton citizens participated in the focus groups. System Measures System measures include installation and maintenance of service meters and master source meters, and an ongoing leak detection program. All water services within Renton's service area are metered and source meters are installed on all of the City'S sources of supply, including interties .. Although the City requires hydrant meters for all hydrant uses except fire fighting and water system maintenance, it is considering alternatives for improving the measurement of water used through hydrants. . The City has an active leak detection program that continues to contribute to the reduction of non-revenue water. The City's ongoing leak detection program includes regular maintenance of its meters, the use of Doppler sonic leak detection equipment to locate water system leaks, and the replacement of leaking pipes. The City makes it a priority to replace leaking pipes as they are discovered. Renton's main replacement program that targets old and leaking water mains will continue to improve the City's distribution system and potentially reduce unaccounted-for water. During the past six years, the City'S unaccounted-for water has continued to decline (as shown in Figure 4-4). 5-6 City of Renton Renton_Ch5 Conservation.doc 1017104 CONSERVATION PROGRAM Incentives/Other Measures Recommended incentives and other measures include residential kits, utility-financed retrofits, water efficient landscaping, alternative rates, nursery support, seasonal demand management, and water reuse. Single-family and multifamily retrofit kits have in the past been distributed by Puget Sound Energy and Washington Natural Gas. These kits have included reduced-flow shower heads, faucet aerators, fill-cycle diverters, and leak detection tablets. Because all of the City's customers are covered through the Puget Sound Energy and Washington Natural Gas programs, the City does riot distribute shower heads. The City has made rain gauges and leak detection tablets available to customers. Approximately 3,000 rain gauges have been distributed in the past five years, and 2,000 leak detection tablets in the last two years. The City has discontinued the distribution of rain gauges because of potential inaccuracies with those devices. In 1994, the City implemented a new inverted block rate structure for single-family residences and duplexes. The two-tiered inverted block rate has a higher rate for consumption that is greater than 1,000 cubic feet per month. The first 1,000 cubic feet per month is billed at $1.81 per 100 cubic feet. Consumption greater than 1,000 cubic feet per month is billed at $1.94 per 100 cubic feet. Landscape management and nursery support occurs through both City-specific and regional activities. City-specific activities include a xeriscape demonstration garden and landscaping practices by the City's Parks Department. To aid in landscape conservation efforts, a rain sensor control was installed on the landscape irrigation system at the northeast comer of Liberty Park. The City's Parks Department operates the system and will study the results to determine whether to install sensor controls on other landscape irrigation systems. The City has constructed a water-smart garden at the old City Hall location. Homeowners are encouraged to browse the garden to gain ideas for their own landscapes. The garden focuses on using water-smart plants to reduce outdoor water consumption. In addition, the City provides green gardening workshops for customers, which include topics on watering wisely and natural yard care techniques. At the regional level, the WCCPS encourages nurseries in the area to provide native plants and promote their use. In its 1993 Conceptual Reuse Plan, the City evaluated the potential for reclaimed water distribution within its service area. The King County South Treatment Plant, located within the city limits, provides reclaimed water to a demonstration project for the cooling system of Boeing's Customer Service Training Center. The treatment plant also uses reclaimed water for process water and landscape irrigation. The City has reviewed large water users and identified potential customers that might be able to use reclaimed water. Large water users (using an average of more than 100,000 gallons per day) are shown in Table 5-3. As Table 5-3 shows, the City's two retail customers that are large water users are already using reclaimed water at their locations. The City does not have any additional viable options at this time for using reclaimed water within its service area, either because projects are not cost effective or due to customer's concerns regarding the perceived health and safety issues of reclaimed water. The City continues to monitor potential uses for reclaimed water for Renton_CbS Conservation. doc 1017/04 R. W. Beck 5-7 Chapter 5 irrigation purposes on a case-by-case basis as opportunities arise. Additional discussion about the use of reclaimed water within Renton's service area is included in Chapter 7. Table 5·3 Large Water Users (>100,000 gpd) Customer Name Skyway Water & 'Sewer District Boeing Renton Plant KC Regional Wastewater Treatment Plant Consumption (gpd) 178,800 138,200 136,800 5.6 Conservation Activities Selected for Implementation' The City will continue to support and use the conservation measures that have proven effective in the past and are currently part of its existing conservation efforts. Table 5-4 summarizes the City's existing conservation efforts, which have been explained in detail earlier in this chapter. . The City's ClL.-rrent Conservation Progr:L1J1 includes all of the conser,ration measures that were part of the Conservation Program presented in its 1998 Water System Plan, as well as all of the recommended measures for a system of its size (as shown on Table 5-2). The City'S Conservation Program also includes several additional measures that are recommended for large-sized water systems. Renton's additional . conservation measures include: • School Outreach • Speakers Bureau • Theme Shows and Fairs • Technical Studies • Recycling/Reuse 5-8 City of Renton Renton _ ChS Conservation. doc 1017/04 Measure Public Education School Outreach Speakers Bureau Program Promotion Fairs & Events Technical Assistance Customer Assistance Technical Studies Consumption History System Measures Source Meters Service Meters Unaccounted-for Water I ncentives/Other Single-Family/Multifamily Kits . . Nurseries/Agriculture Landscape Management Conservation Pricing CONSERVATION PROGRAM Table 5-4: Conservation Program Description Classroom and Teacher Association presentations Presentations to civic groups and other organizations Participation in the regional Water-Use it Wisely Program Exhibits, handouts, and speakers/educators Web page, special events, and printed material Participation in regional focus groups and surveys Water-use history on customer bills Master meters at all sources of supply and interties Meters on all customer connections Leak detection program Handouts, kits, and materials Encouraging nurseries to provide native plants Water-efficient landscaping at targeted public locations and landscape education through presentations and handouts Inverted block rate structure 5.7 Conservation Program Effectiveness Although many factors can contribute to decreased water consumption, a consistent decline in water use over time is typically an indication that water conservation is having an impact on long-term water use. Historically, the City'S reduction in water consumption primarily was the result of reduced residential use along with some reduction in wholesale water sales. Figure 5-1 presents average monthly historical water use per connection since 1990. From 1990 through 1997, monthly consumption per connection averaged approximately 487 gallons per day (gpd). From 1998 through 2003, the five-year time period directly after the last update of the City's Conservation Plan, monthly consumption per connection averaged 466 gpd, a 6.3 percent reduction in water use. Renton _ ChS Conservation. doc 10/7/04 R. W. Beck 5-9 Chapter 5 MO~----------------------------------------------------~ 520 i;' 500 c .. CII Q" c 480 o :e CII 2 460 o CJ .. CII Q, 440 1/1 C .2 ~ 420 400 380 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 Figure 5·1: Historical Consumption per Connection The significant deCline in water use in 1993 is in large part attributable to the drought that occurred in 1992 to 1993. Water use following 1993 never returned to the same levels as were experienced prior to the drought. The change in the City's rate structure (with inverted rate blocks) also occurred in 1994, which is believed to have impacted water use. The decline in water use in 2001 and 2002 is partially attributable to drier weather during that time. Decreased water use during drier weather is attributed to the success of highly visible regional campaigns to conserve water. Figure 5-2 presents average monthly historical water use per single-family connection since 1990. From 1990 through 1997, monthly consumption per single-family residential connection averaged approximately 211 gpd. From 1998 to 2003, the monthly consumption per single-family connection averaged 185 gpd, a 12.3 percent reduction for water use from the· period 1990 through 1997. Similar to the system- wide decrease in consumption shown in Figure 5-1, single-family residential consumption also shows the impacts of drier years in 1992, 1993, 2001, and 2002. 5-10 City of Renton Renton_ChS Conservation,doc 1017104 CONSERVATION PROGRAM 250.-------------------------------------------------------. 225 200 1;- ': 175 III Q, S 150 :;::l u GI g 125 o (.J :D 100 Q, 1/1 C ~ 75 iQ C!) 50 25 o 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 Figure 5·2: Historical Single-Family Residential Consumption per Connection A water rate structure can be an important way of encouraging water conservation. However, it is difficult to quantify the amount of conservation achieved through a rate structure because of the many other variables that affect water use. Figures 5-3 and 5-4 show 2003 water consumption data for the City's single-family residences. Single-family residential data is shown because the City's inverted block rate structure (described in Chapter 11) applies only to single-family residences and duplexes. As shown in Chapter 4, approximately one-third of the City's metered water consumption is from single-family residences. Figure 5-3 shows the distribution of water consumption among single-family residences. In 2003 approximately 40 percent ·of the City's single-family residences used less than 5 ccf per month (approximately 123 gallons per day). Also, approximately 80 percent used less than 10 ccfper month (approximately 246 gallons per day). Figure 5-4 shows the amount of water use according to percentile of single-family residences ranked in order of increasing water use. In 2003, the 10% of residences with the highest consumption were responsible for approximately 28 percent of all water consumed by single-family residences. Similarly, the 10 percent of residences with the lowest consumption were responsible for only approximately 3 percent of all water consumed by single-family residences. Additional data showing monthly water consumption compared to the City's rate structure is included in Appendix M. Renton_eM Conservation.doc 1017104 R. W. Beck 5-11 Chapter 5 c 100% -------------- -0 .!! ;: -Q. ~ E "t:J ~ ";; ~ Q) 0 80% ~o ~"t:J Eo! as as . 1.&.. Co) cb=6 c,.5 60% .5 c ~~ 01- -1/1 C 1/1 ~.3 40%-· • • $1.81/ccf $1.94/ccf How to Read This Graph: Approximately 40% of customers use less than 5 cd/month Approximately 80% of cuStomers use less than 10 cd/month Q) CI a.. C Q) "w 1ii~ E f __ ra_te_b_lock __ "I_' __ ra_te_b_lo_ck ___________________ 1 "~~ 20% ~.s Q.I/I • «8 0% o 5 10 15 20 25 30 35 40 45 50 ccf/Month Figure 5-3: Distribution of 2003 Single-Family Residential Consumption per Connection C o a 30% 25% E 1/1 ~ Q) ~ g 20% o Q) 0:2 -1/1 as Q) '00:: I-.2-15% '0 "s 1!.f Q) • Co) Q) : ~ 10% Q)t;; 1ii E "M e Q. Q. « 5% 0% How to Read This Graph: The 10% of customers with the lowest consumption use about 3% of the water The 10% of customers ..... itht~E!hig~E!~~()Il!;ur11ptiolluse about 28% of the water • • • • • • • 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Percentile of Single-Family Residential Customers Figure 5-4: Distribution of Aggregate 2003 Single-Family Residential Consumption 5-12 City of Renton Renton_CbS Conservation. doc 1017104 CONSERVATION PROGRAM Although the data in Figures 5-3 and 5-4 cannot be used to quantify the amount of conservation resulting from the City's inverted block rate structure, this type of data, assembled over time, may be useful to the City in evaluating its water rate structure in the future. 5.8 Funding for Conservation Program The City's Capital Improvement Program (CIP) described in Chapter 10 includes $10,000 per year for the Conservation Program. This includes the salary of a part- time employee and conservation materials. The City budgets the equivalent of one person half-time for its water conservation program. Staff in other City departments, including the Solid Waste Department and the Parks Department, also spend time on water conservation efforts throughout the year, but this is not included in the Conservation Program budget. An annual membership fee of $565 is paid to WCCPS for the regional conservation program. The City pays an additional fee of $1,979 as a contributing member of the regional public awareness campaign and for the Water-Use It Wisely materials. An annual membership fee of $9,900 is paid to EKCRW A. However, the membership in EKCRWA is not specifically for conservation and in recent years this organization has not had a very active regional conservation program. The active conservation program and resources were a major reason why the. City became a member of WCCPS. In addition to the membership fees, a residential surcharge of $3,745 is paid to DOH as a result of the legislation passed directing DOH to develop water conservation regulations. 5.9 Target Water-Saving Projections Due to Renton's geographical location as a neighboring jurisdiction to the City of Seattle, Renton benefits from Seattle's conservation program. Seattle has a target for water conservation of 1 percent per year through 2010 (which has already been achieved). Based on the historical and projected reduction in water use for Seattle's retail customers, the regional decline in water use, and Renton's historical water use reductions, Renton anticipates water use reductions of 0.5 percent per year through 2020. While it can be difficult to determine how much of water savings are due to conservation, typically a permanent, downward trend in water use is an indication that conservation has an impact. The City expects to realize continued reductions as plumbing code efficiency improvements are implemented in redevelopment and new development projects. Other factors such as smaller lot sizes and stronger growth in multifamily development will also potentially reduce water use per household and per employee within the City. Additionally, DOH's anticipated new conservation requirements may result in reduced water usage. Renton_ChS Conservation. doc 1017104 R. W. Beck 5-13 Chapter 6 POLICIES, CRITERIA, AND STANDARDS 6.1 Introduction The policies, design criteria, and standards used in the water system are based on laws and policies that originate from six sources as shown in the adjacent diagram. The laws and policies adopted by these sources are used to operate the water system on a day-to-day basis and to plan for growth and improvements to the system. The objective is to provide high quality water service at a minimum customer cost. The highest four levels of establishing policies and laws--Federal Regulations, State Regulations, County Regulations, and Renton City Council-dictate requirements that are set by law. An entity lower on the list may not adopt laws or policies that are less stringent or in conflict with laws or policies adopted by an agency higher on the list. Law is set by the federal government through federal regulations, by the State of Washington in the form of statutes, by King County in the form of policies, and by City Council in the form of ordinances. The last three entities--Mayor, Public Works Administration, and Water Utility Staff-dictate requirements that are set as policy. In general, policies of lower entities do not conflict with policy set by a higher entity. The policies are set in the form of memorandums and job descriptions, and are summarized in this Water System Plan. Federal Regulations ! State Regulations ! County Regulations ! Renton City Council 1 Renton Mayor l Public Works Administration ! Water Utility Staff The laws, policies, and standards established are used to determine if the existing water system is deficient under various existing and future water demand conditions. The system's ability to meet these demands is detailed in Chapter 8, and recommended improvements are identified in Chapter 10. All of the policies and standards have the general purpose of providing an acceptable level of service to the water rate payers. "Service" is therefore the single most important aspect of the construction, operation, maintenance, and administration of the water system. The following categories combine to meet this service goal: 1. Supply Renton_eh6 Policies Criteria and Standards. doc 1017/04 Chapter 6 2. Customer Service 3; Finance 4. Facility 5. Organization A policy outline is shown in Figure 6-1. The policies associated with each category are identified in this chapter. Elements of the City's municipal code that are relevant to the water system are also included in Appendix D. Also included in this chapter are descriptions of the City's p"roj ect review procedures, policies and requirements for outside parties, and construction certification and follow-up procedures. The City's design and construction standards are described by the facility policies. Construction standards are also included in Appendix 0, Standard Specifications and Details. Policy Statement Provide the highest quality water in sufficient quantity to meet the needs ri the City. Supply Planning Reliability Planning Regulatory Compliance Ecologically Responsible Quantity Quality Financial Impacts Regional Participation 6-2 Policy Statement Provide the customer with adequate or better service. Outside Supply Policy Exceptions Planning Boundaries Policy Statement Provide water supply at a reasonable cost to all customers. Rates Extra Charges Outside City Rates Rate Capacity Special Charges Policy Statement Maintain all facilities to achieve maximum use. Storage Pipelines Boosters PRVs Control Maintenance . Reliability 1 Vulnerability Joint Use Policy Statement Provide sufficient staff to achieve all other policy goals. Structure Staffing Responsibility Department Renton_Ch6 Policies Criteria and Standards.doc 1017104 r ( POLICIES, CRITERIA, AND STANDARDS 6.2 Supply Policies Supply Policy S-1 (Supply Planning) Policy: Source: The City will pursue supplies to meet maximum day demand created by growth targets established through the Growth Management Act (GMA) planning process. WAC 246-290-420, WAC 246-290-200, RCW 19.27.097, RCW 58.17.110. City of Renton Comprehensive Plan policy numbers U-36, U-40, U-42, and U-54. Comment: "Adequate" supply is enough water to meet normal peak day demands of the City's customers. Peak day demand includes the effects of. drought and curtailment. As time passes, normal demand is expected to decrease on a per household basis for two reasons. First, average ho~sehold size is expected to decline, reducing the number of water users per house. Second, continued efforts to use water wisely by all customers will reduce demand. The City intends to take a cautious approach toward demand reductions that result from behavioral changes, which will not be considered permanent. Alternately, structural improvements (e.g., low-flush toilets, low-flow shower heads, or other water-saving devices) will be considered permanent reductions in demand. The City supports efficient use of water. The City supports eliminating the "waste" of water. The City has adopted rates to achieve these objectives. The quantity of water at the source shall: (1) be adequate to meet the maximum projected water demand of the service area as shown by calculations based on the extreme drought of record; (2) provide a reasonable surplus for anticipated growth; (3) be adequate to compensate for all losses such as silting, evaporation, seepage, etc.; and (4) be adequate to provide ample water for other legal users of the SOUf(~e. Supply Policy S-2 (Reliability Planning) Policy: Source: The City will pursue supplies to avoid curtailment in all but the most exceptional circumstances. WAC 246-290-420, WAC 246-290-200, RCW 19.27.097, RCW 58.17.110 Comment: Ensuring that adequate water is "always available" includes a degree of reliability that cannot be predicted. For the purposes of this policy, "always available" means that water will be available in all but the most extreme catastrophes. It is not possible for water supply to be 100% reliable; however, the water should be available as close to 100% of the time as possible. Events included in this approach to reliability are climatological variables, regulatory compliance, and governance changes. Water supply is affected by seasonal and annual variations in precipitation. These events are predictable and should not affect supply reliability. In order to minimize the damage from floods, sabotage, and natural disasters, the City will locate supply, storage, transmission, and other facilities as close as possible to customer demand. Renton_eh6 Policies Criteria and Standards. doc 1017104 6-3 Chapter 6 Supply Policy S-3 (Regulatory Compliance) Policy: Source: The City will monitor legislative, regulatory, litigation, and planning activities that may impact or influence the adequacy or reliability of supply. Council Discretion Comment: The regulatory environment for water suppliers is constantly changing. In addition, water supply can be adversely affected by water right regulatory decisions. The City's supply will be structured to anticipate these impacts. Supply Policy S-4 (Ecologically Responsible) Policy: Source: The City will practice and support water res~urce management that achieves a maximum net benefit for all citizens and promotes enhancemen~ of the natural environment. Council Discretion, Army Corps of Engineers' "Drought Preparedness Study," RCW 90.54.020 Comment: The City recognizes the importance of instream non-consumptive uses, such as river water quality, fisheries, navigation, recreation, and aesthetics. The City supports resolution of water right claims and applications in the Lake Washington Basin that: (1) promotes efficient, beneficial use of water; and (2) accommodates growth consistent with the GMA. As the City pursues sources to meet its supply capacity and water quality needs, it will be operating in a very complex resource management milieu. This policy reaffirms the state's water resource management principles. It also is intended to respond to . tribal concerns regarding enhancement of resources. The City supports efficient use of water. The City supports eliminating the "waste" of water. The City has adopted rates to achieve these objectives. Perennial rivers and streams within the service area shall be retained with base flows necessary to· provide for the preservation of wildlife, fish, scenic, aesthetic, navigational, and other environmental values. Lakes and ponds shall be retained substantially in their natural condition. Withdrawals of water which would conflict therewith shall be authorized only in those situations where it is clear that overriding considerations of the public interest will be served. Supply Policy S-5 (Quantity) Policy: Source: Develop and maintain multiple sources of supply. RCW 90.54.180, RCW 90.42.005, WAC 246-290-420. City of Renton Comprehensive Plan policy number U-41. Comment: The City will develop supplies which, when combined, meet the Washington State Department of Health (DOH) demand criteria. The City will maintain and execute data collection strategies and record keeping procedures that quantify the average day and peak day demands of each customer class. The City will 6-4 Rentoo_ Ch6 Policies Criteria and Standards. doc 1017104 POLICIES, CRITERIA, AND STANDARDS develop supplies which meet the anticipated maximum day demand (based on customer demand patterns, weather, and growth) with the largest of the supply sources not included. A multiple source strategy embodies sound ecological and engineering standards. From an ecological perspective, the more complex a system is, the more reliable it is. Therefore, it naturally follows that developing multiple sources is supportive of many objectives. Reclamation of wastewater should be encouraged to supplement existing groundwater supplies and to assist in meeting the future water requirements of the state. Supply Policy S-6 (Quality) Policy: Source: Operate and manage the system to provide water quality that meets or exceeds all health requirements. EPA, Safe Drinking Water Act, Council Discretion, WAC 246-290- 310, WAC 246-290-135. City of Renton Comprehensive Plan policy numbers U-35, U-37, U-38, and U-39. Comment: The City will take steps to meet or exceed all water quality laws and standards. The City will take all reasonable measures to protect its customers. Currently, the City does not have complete control of the quality of the water it receives from its groundwater sources; however, under the law, the City is responsible for complying with water quality requirements. Therefore, implicit in this policy is the institution of measures of control that do not currently exist for the City. Overall, the City will continue to maintain and upgrade its system to provide the best water quality and service. Supply Policy S-7 (Financial Impacts) Policy: Source: Minimize and stabilize the long-term, life-cycle cost of service Council Discretion Comment: Rates and additional charges established for the City will be: (1) cost- based rates which recover current, historical, and future costs associated with the City's water system and services; (2) equitable charges to recover costs from customers commensurate with the benefits they receive; and (3) an adequate and stable source of funds to cover the current and future cash needs of the City. This principle focuses on the "long-term life-cycle" costs of service. The practical result of this principle is that the City's rates will not necessarily be the lowest. However, by considering costs on a long-term basis, overall long-term expenditures by the City will be minimized. S~pply Policy S-8 (Regional Participation) Policy: Pursue regional water governance that supports the City's principles regarding resource management, supply capacity, supply strategy, quality, service area, and cost. Renton_Ch6 Policies Criteria and Standards. doc 1017104 6-5 Chapter 6 Source: Council Discretion.· City of Renton Comprehensive Plan policy numbers U-43, U-48, and U-50. Comment: The City will work regionally to promote a water supply management system that: • Respects the unique circumstanc~s of each supplier and purveyor; • Facilitates development of mUltiple supply sources to maximize reliability; and • Promotes efficient supply allocation through pooling. Every supplier and purveyor has supply circumstances that are unique. There is no single supply approach, strategy, or source that will be appropriate for all purveyors. The more sources of supply available to the region, the more reliable the supply for all will be. The City recognizes the need to move away from massive "single sources" of supply and promote multiple sources that cumulatively and incrementally will meet increased demands. 6.3 Service Policies Service Policy Cs-1 (Outside Supply) Policy: Source: Annexations will not decrease the level of service to existing customers or increase the cost of service to existing customers. Council Discretion. City of Renton Comprehensive Plan policy numbers U-45, U-46, U-47, U-49, and U-52. Comment: Renton will serve areas annexed to the City which do not have existing municipal supply. Renton will not supply water to areas annexed which have existing municipal water supply. Areas annexed with existing municipal water supply should be responsible for the costs of utility system improvements needed to raise the level of service to City standards. These upgrades may be phased over time if necessary. Renton will follow state guidelines in the assumption of facilities in annexation areas. Service to areas outside of the city limits without annexation will be evaluated on a case-by-case basis by the City Council. Service Policy Cs-2 (Policy Exceptions) Policy: Source: Temporary and emergency services may be installed and operated that are not in compliance with City criteria. Council Discretion. City of Renton Comprehensive Plan policy number U-53. Comment: Compliance with standards may be deferred for temporary water service. Compliance with standards may be deferred for emergency water service. Policy criteria may be waived for emergency service. All temporary and emergency waivers must be approved by the Public Works Director. 6-6 Renton_ eh6 Policies Criteria and Standards. doc 1017104 POLICIES, CRITERIA, AND STANDARDS Service Policy Cs-3 (Planning Boundaries) Policy: Source: The planning area boundary for water supply planning and comprehensive planning will be the boundary established by the Regional Coordinated Water System Plans. Council Discretion, WAC, City of Renton Comprehensive Plan policy numbers U-48, U-49, and U-Sl. Comment: For planning purposes, the City will use water service boundaries established by agreement as a result of the regional coordinated water system plans, and agreements with adjacent water providers (Kent, Soos Creek, Skyway, etc.). Renton will follow state guidelines in assuming portions of adjacent water systems as a result of annexation. 6.4 Finance Policies Finance Policy Fi-1 (Rates) Policy: Source: The Water Utility will charge all customers for the cost of providing water service to meet the policies adopted by the Council. A WW A, EPA, Council Discretion Comment: The utilities will use a rate-setting process which complies with standards established by the American Water Works Association (A WW A) and the Environmental Protection Agency (EPA). Rates and additional charges established for the Water Utility should be: • Cost-based rates which recover current, historical, and future costs associated with Renton's water system and services; • Equitable charges to recover costs from utility customers commensurate with the benefits they receive; • An adequate and stable source of funds to cover the current and future annual cash needs of the Water Utility; and • Easy for the customer to understand and easy for the customer to administer. The existing customers of the Water Utility will pay the direct and indirect costs of operating and maintaining the facilities through user rates. In addition, the user rates will include debt service incurred to finance the capital assets of the utility. Finance Policy Fi-2 (Extra Charges) Policy: Source: New customers will pay for growth to accommodate their connections and also for an equitable portion of the existing system. Council Discretion Comment: New customers seeking to connect to the water system will be required to pay a system development charge for an equitable share of the historical cost of the Renton _ Ch6 Policies Criteria and Standards. doc 1017104 6-7 Chapter 6 system and for some future improvements to the system. System development charge revenue will be used to finance the Capital Improvement Program. New and existing customers will be charged for extra services through a separate ancillary charge based on the cost to provide the service. Ancillary charges can increase equitability and increase operating efficiency by discouraging unnecessary demands for services by the customers. Revenue from ancillary charges will be used to finance annual operations and maintenance. Finance Policy Fi·3 (Outside City Rates) Policy: Source: For customers residing outside the city limits, water rates are 1.5 times the residential city rates. Council Discretion Comment: In-city customers participate in the support of City-provided services that cannot be quantified through the payment of service fees and taxes. Participation includes such items as in-city shopping and the payment of sales taxes,the support of City organizations and activities and tax payments which support general administrative costs. Outside-city customers use the services provided by the Water . Utility without contributing to the City's general fund and overhead obligations. These contributions from in-city customers cannot be completely quantified; but will be acknowledged by the in-city/outside-city rate structure. Finance Poiicy Fi·4 (Rate Capacity) Policy: Water rates will be based on the method which generates equitable charges for all customers. Source: Council Discretion Comment: The water rates will be based on either the base-extra capacity method or the commodity-demand method. Both methods strive to equitably charge customers with different service requirements based on the cost of providing the water service. Service requirements relate to the total volume of water used, peak rates of use, and other factors. The utility's fees and charges should be calculated for the service area as a whole. Rates will be the same, regardless of service location (except for the in-city/outside-city distinction discussed earlier). Finance Policy Fi·5 (Special Charges) Policy: Source: System development charges will be charged to new customers so that existing customers will not have to pay for system growth. Connection fees will be charged to customers to recover actual costs to make the connection to the system. Council Discretion Comment: The term "connection fees" refers to the one-time fee paid by a property owner when connecting to the water system. The utility will charge for the actual cost 6-8 Renton_Ch6 Policies Criteria and Standards. doc 1017104 POLICIES, CRITERIA, AND STANDARDS of manpower, materials, and equipment required to make a new connection. In addition, the utility will charge a system development charge, a reasonable fee so that new customers will bear an equitable share of the historical cost of the system and some future improvements to the system. According to Ordinance #4205, the owner of properties which have not been assessed or charged or have not borne an equitable share of the cost of the water distribution and water plant facilities shall pay, prior to connection to a water main, one or more of four special connection charges: • Latecomer Fees. Per Ordinance #4443, latecomers' agreements are granted to developers, owners, and the City for the reimbursement of a pro rata portion of the original costs of water systems. a. Special Assessment Charge. The special assessment is a charge (Ordinance #4505) for the historical costs for the water distribution system, which shall include the water distribution mains that lie adjacent to or near properties that would benefit directly therefrom that were not installed by LIDs or by a private developer under a latecomers' agreement. • System Development Charge. Per Ordinance #4508 the System Development Charge shall be assessed against any property that has not participated in the development of the water system, including the wells, pump stations, reservoirs, and transmission mains. The charge shall be: a. Per single-family residence and mobile home; b. Per living unit of an apartment, condominium, motel, or similar multifamily occupancy residential structure; or c. Per square foot of property connected, for all other properties. • Inspection and Approval Fees. Inspection and approval fees will be charged according to a stepped flat rate schedule. 6.5 Facility Policies Facility Policy Fa-1 (Pressure) Policy: Source: The existing facilities will be operated and new facilities constructed to ensure compliance with DOH and ISO criteria for maximum and minimum pressure. WAC 246-290-230, Insurance Services Organization (ISO), Council Discretion Comment: A minimum residual water pressure of 30 pounds per square inch (psi) at customer meters shall be provided during peak hourly demand conditions, not including a fire or emergency. Renton_Ch6 Policies Criteria and Standards. doc 1017104 6-9 Chapter 6 A maximum of 130 psi at system meters shall be provided during nonnal demand conditions, not including pressure surges. Pressure over 80 psi will be reduced with individual pressure-reducing valves (PRVs). Minimum allowable pressure, except for fire flow conditions, is 30 psi under peak hourly design flow conditions measured at any customer's water meter (WAC 246- 290-240). During fire conditions, the minimum pressure at any tnajor risk and in the remainder of the system is 20 psi in the water main during peak hourly design flow conditions (WAC 246-290-230 and ISO criteria). During a failure of any part of the system, the maximum pressure ·shall not exceed the normal pressure rating of the pipe, generally 150 psi: Facility Policy Fa-2 (Velocity) Policy: Source: The existing facilities will be operated and new facilities constructed to minimize damage from excessive pipeline velocities. DOH Water System Design Manual, Fire Marshall, Insurance Services ~ Organization (ISO), ~ouncil Discretion Comment: When adding to the distribution system or replacing components of the distribution system, water mains shall be sized such that the following hold true: 1. Under normal conditions, the velocity of water in a transmission main shall be less than 4 feet per second (fps) during demand periods. 2. Under emergency conditions, such as a fire, the velocity of water in a transmission . main shall be less than 8 fps. Fire flow planning and modeling will use a derating procedure that limits fire flow velocities to 8 fps. Facility Policy Fa-3 (Storage) Policy: . Source: The existing storage -facilities will be operated and new storage facilities constructed to comply with DOH criteria and good engineering practice. WAC 246-290-235, Council Discretion, Fire Marshall Comment: Storage within the distribution system must be of sufficient capacity to supplement transmission supply when peaking demands -are greater than the source pumping capacity ( equalizing storage) and still maintain sufficient storage for a fire or other emergency condition. Equalizing, fire suppression, and stand-by storage are provided in addition to operational storage. The bottom of the equalizing storage component must be located at an elevation which produces no less than 30 psi at all service connections throughout the pressure zone under peak hour demand conditions, assuming all sources are in service. The bottom of the stand-by storage component must be located at an elevation which produces no less than 30 psi at all service connections throughout the pressure zone under peak hour demand, assuming all sources are in service. 6-10 Renton _ Ch6 Policies Criteria and Standards. doc 1017104 POLICIES, CRITERIA, AND STANDARDS For fire flow supplied via gravity storage, the bottom of the fire suppression storage component shall be located at an elevation which produces no less than 20 psi at ground level at all points in the zone under peak hour demand conditions, assuming the largest source to the zone is out of service. The fire flow storage criteria available from the ISO were considered in the study. The quantity of fire flow storage provided will approach these requirements as closely as possible, considering economic factors and other design criteria. Sufficient storage for a fire condition is the product of the fire protection water demand and the required duration as determined by the City of Renton Fire Marshall. - The stand-by storage component or the fire suppression storage component, whichever volume is smaller, can be excluded from the zone's total storage requirement (subject to the approval of the Fire Marshall on a case-by-case basis) provided that the elevation of the bottom of effective storage is no less than that elevation which produces the higher ofthe following criteria: 1. 20 psi at ground level at all points in the 'zone under peak hour demand conditions, assuming the largest source to the zone is out of service, or 2. 30 psi at all service connections throughout the pressure zone under peak hour demand, assuming all sources are in service. Location of storage facilities should be in areas where they will satisfy the following requirements: • Minimize fluctuations in system pressure during normal demands. • Maximize use of the storage facilities during fires and peak demands. • Improve the reliability of the supply for the water system. Facility Policy Fa-4 (Pipelines) Policy: The existing pipeline facilities will be operated and new pipeline facilities constructed to comply with DOH criteria and good engineering practice. Source: WAC 246-290-230, Council Discretion Comment: Where practical, transmission and distribution mains shall be looped to increase reliability and decrease head losses. All mains shall comply with the generally recognized design criteria from the A WW A as follows: • In residential areas, the grid of distribution mains sh01ild consist of mains at least 6" diameter arranged so that the lengths on the long sides of block between intersecting mains do not exceed 600 feet. Where longer lengths of pipe are necessary, 8" or larger mains are required. Where the layout of the streets and the topography are not well adapted to the above arrangements, or where dead ends and poor looping are unavoidable, 8" should be the mini~um main size. Renton_Ch6 Policies Criteria and Standards. doc 1017104 6-11 Chapter 6 • In high-value areas, the minimum size should b~ 8", with intersecting mains in each street; 12" or larger mains should b~ used on the principal streets and for all lines that are not connected to other mains at, intervals close enough for proper mutual support. All new construction shall be in accordance with the Renton Standards for additions to the water system. Distribution system design assumes that only adequately sized service line will be used. All residential service lines will be 3/4" or larger copper. Service lines will be the same size as the meter. • Valve installations shall satisfy the following criteria: a. Zone valves shall be located at all pressure zone interfaces to allow future pressure zone re-alignment without the need for additional pipe construction. b. Isolation valves shall be located wherever necessary to allow individual pipelines to be shut down for repair or installing services. A minimum of three valves shall be provided per cross, and two valves per tee. c. Air/vacuum release valves shall be placed at all high po~nts or "crowns" in all pipelines. ' d. Individual service pressure reducing or check valves are recommended for all new customer service lines in ,the City. Tne pressure-reducing valves protect customers from high pressures in case of failure of a pressure- reducing station. Check valves prevent hot water tanks from emptying into the transmission main when the main is empty and prevent contamination of the system mains due to possible cross connections in the customer's servIce. Cross Connection Control shall conform to WAC 246-290-490 and accepted procedure and practice in Cross Connection Control by Pacific Northwest A WW A. See Appendix G, Cross Connection Control Plan. Facility Policy Fa-5 (Boosters) Policy: Source: The existing booster facilities will be operated and new booster facilities constructed to comply with DOH criteria and good engineering practice. WAC 246-290-200, DOH Water System Design Manual, Council Discretion Comment: All existing and future booster stations should be modified/constructed to comply with the following minimum standards: • All structures should be non-combustible, where practical. • All buildings should have adequate heating, cooling, ventilation, insulation, lighting, and work spaces necessary for on-site operation and repair. 6-12 Renton_Ch6 Policies Criteria and Standards,doc 1017104 POLICIES, CRITERIA, AND STANDARDS • Underground vaults should be avoided where possible due to the increased potential of flooding, electrocution, and other hazards. • Sites should be fenced to reduce vandalism and City liability where appropriate. • Each station shall be equipped with a flow meter and all necessary instrumentation to assist personnel in operating and troubleshooting the facility. • Emergency power capability (auto-startlauto-transfer) shall be provided to at least one booster pump station supplying each booster zone. Booster stations should be placed wherever necessary to fulfill the following criteria: • Provide supply redundancy to a pressure zone. • Improve the hydraulic characteristics of a pressure zone. • Reduce the cost of water supply. • Improve water quality (i.e., increase circulation). Facility Policy Fa-6 (PRVs) Policy: The existing pressure-reducing facilities will be operated and new pressure-reducing facilities constructed to comply with DOH criteria and good engineering practice. Source: WAC 246-290-200, DOH Water System Design Manual, Council Discretion Comment: The City has a standard design for pressure-reducing stations. The standard design reduces design costs and minimizes confusion. All pressure-reducing valves should be placed in vaults that are large enough to provide ample work space for field inspection and repair of the valves. Vaults should be tall enough to allow operating personnel to stand erect. Vaults should drain to daylight or be equipped with sump pumps to prevent vault flooding. Pressure-relief valves should be provided on the low-pressure side of the PRY to prevent system overpressuring in case of a valve failure. High-pressure alarms should be transmitted to the central control cabinet to alert operating personnel of the PRY failure. Facility Policy Fa-7 (Control) Policy: Source: The control and alarm system will be maintained and updated as necessary to optimize all policy goals. DOH, Council Discretion Comment: Control must be capable of optimizing the operation of the water system's components in response to reservoir levels, system pressures, abnormal system conditions, electrical power rate structure, and water costs. Renton_Ch6 Policies Criteria and Standards. doc 1017104 6-13 Chapter 6 Facility Policy 'Fa-8 (Maintenance) Policy: Source: All facilities, equipment, procesSes, and tools will be maintained so that they perform at the level of service necessary to meet all other policy goals. WAC 246-290-415, Council Discretion Comment: Equipment breakdoWn is given highest maintenance priority, and repairs should be made even if overtime labor is involved. Equipment should be replaced when it becomes obsolete. Worn parts should be repaired, replaced, or rebuilt before they represent a high' failure probability. Equipment that is out of service should be returned to service as soon as possible. A preventive maintenance schedule shall be established for all facilities, equipment, and processes. Spare parts ~hall be stocked for all equipment items whose failure will impact the ability to meet other policy standards. Tools shall be obtained and maintained to repair all items whose failure will inipact the ability to meet other policy standards. Dry, heated shop space shall be available to all maintenance personnel to maintain facilities. All maintenance personnel shall be trained in the procedures and techniques necessary to efficiently perform their job descriptions. Maintenance shall be performed by the water maintenance staff and supervised by the Field Superintendent. Written records and reports will be maintained on each facility and item of equipment showing operation arid maintenance history. Facility Policy Fa-g (Reliability) Policy: Source: The Utility will build, equip, and maintain all components and facilities in the water system to maximize reliability within reasonable cost. WAC 246-290-420, DOH Water System Design Manual, Council Discretion Comment: Supply to the service area will be pursued to meet maximum day demand during a reasonable "worst case" supply system failure. Supply to each pressure zone will be provided to meet maximum day demand during a reasonable "worst case" supply system failure. At saturation development, interties with adjacent systems may not be reliable or available. System demand planning will use historical demand data and assume all available land will be developed at saturation. 6-14 Renton_Ch6 Policies Criteria and Standards, doc 1017104 POLICIES, CRITERIA, AND STANDARDS Facility Policy Fa-10 (Vulnerability) Policy: The City will determine the appropriate level of vulnerability planning to meet other policy goals as long as the vulnerability exceeds DOH standards. Source: WAC 246-290-221, -222, -230 & -235, DOH Water System Design Manual, Public Health Security and Bioterrorism Preparedness and Response Act of 2002, Council Discretion Comment: Supply vulnerability analysis will be performed to determine a reasonable "worst case" failure for each pressure zone. The analysis will consider each of the following conditions: • Failure of the largest source of supply • Failure of the largest mechanical component • Power failure to a single power grid • Reservoir out of service Storage vulnerability analysis will be performed to determine a "worst case" failure for each pressure zone. The analysis will consider each of the following conditions: • Maximum day demand with simultaneous fire • Maximum day demand with largest supply source out of service In 2003 the City, with assistance from ABS Consulting, conducted a security vulnerability assessment of the drinking water system and filed a report of the assessment with the EPA in accordance with the requirements of the Public Health Security and Bioterrorism Preparedness and Response Act of 2002. The report documents the security vulnerabilities of the system and prioritizes and estimates costs of security enhancements to reduce the vulnerabilities of the drinking water system. In 2004 the City, with assistance from ABS Consulting, updated its Emergency Response Plan to address issues identified in the security vulnerability assessment. Certain security enhancements have been and will be implemented. Facility Policy Fa-11 (Joint Use) Policy: The City will participate in regional projects to the extent that the level of service is not compromised or the cost of service inequitable. Source: DOH, Council Discretion Comment: All joint-use facilities must comply with Renton policy and design standards. Joint-use facilities which supply a portion of the City that cannot be supplied from other sources in the event the joint-use facility is out of service will be maintained by the City of Renton. Joint-use facilities will be pursued only in those areas that improve reliability or operating costs. Renton _ Ch6 Policies Criteria and Standards. doc 1017/04 6-15 Chapter 6 6.6 Organizational Policies Org Policy 0-1 (Structure) Policy: Source: The Water Utility will be structured to provide the best level of service at the least cost. DOH, Council Discretion Comment: The Water Utility shall be operated as an Enterprise Utility (financially self-:supporting). The Water Utility shall consist of the following divisions: • Planning and Design '. Operations and Maintenance Water Utility management is accomplished by the PlanninglBuildinglPublic Works Department managers. The Water Utility shall operate to administer only the municipal water system. StoITIlwater, wastewater, and other utilities are not administered in the Water Utility. Water Utility customer service is performed by the Public Works Maintenance Services, Division, Utility Systems Division, Development Services Division, and Finance Division, depending on the service requested or required. Org Policy 0-2 (Staffing) Policy: Source: The Water Utility will be staffed to provide the best level of service at the least cost: DOH, Council Discretion Comment: The utility staff level is established by the City Council based on the financial re~ources of the City. Personnel certification will comply with state standards. The Water Utility Supervisor. and Maintenance Supervisor shall be certified WDM III. Org Policy 0-3 (Responsibility) Policy: Source: The Water Utility staff are responsible for operation of the Water Utility. DOH, Council Discretion Comment: The Water Utility has the responsibility for potable water system operation. Planning, design, operations and maintenance, and construction will be . accomplished by the Water Utility. Financing, customer billing, and records management are not performed directly by the Water Utility staff. 6-16 Renton_Ch6 Policies Criteria and Standards,doc 10/7/04 POLICIES, CRITERIA, AND STANDARDS Org Policy 0-4 (Department) Policy: Source: Work or processes that are more efficiently accomplished by other departments or independent contractors will be performed by those organizations. DOH, Council Discretion Comment: The Finance Department is responsible for customer billing, payment collection, project cost accounting, and fund activity reporting. "The Personnel Department is responsible for employee records, union labor negotiations, and salary schedules. The Fire Department uses Water Utility facilities for fire protection and establishes fire flow requirements. The Fire Department is responsible for emergency responses to chlorine leaks or other hazardous events at water system facilities. The Police Department is responsible for enforcing violations of City water ordinances. The Fire Department is responsible for hydrant fire flow testing. Fire hydrant testing is performed jointly by the Fire Department and the Water Utility. 6.7 Project Review Procedures The City submits projects for new sources, water treatment facilities, booster pump stations, reservoirs, and the recoating of the interior of existing reservoirs to DOH for review and approval as per WAC 246-290-110, -120 and -130. The City staff reviews and approves projects for water main replacements and water main extensions including related fittings, blocking valves, air and vacuum valves, pressure regulating and relief valves, fire hydrants, service connections and meters, and cross connection control devices. The City staff reviews and approves projects for the maintenance and repair of water treatment facilities, booster pump stations, and reservoirs (except for the recoating of the interior of reservoirs). The City staff reviews and approves projects for the installation, maintenance, and repair of control, telemetry, and SCADA systems of the drinking water system. The Water Utility Engineering Supervisor reviews project plans for compliance with DOH and City design and construction standards including compatibility with the objectives of the Water System Plan. The Water Utility Engineering Supervisor consults with the Fire Marshall's staff and the water maintenance supervisor as part of the review. The review addresses separation from sanitary sewers, other non-potable conveyance systems, and sources of contamination; service pressures; fire flow volumes, velocities, and pressures; cross connection control; thrust block and anchoring requirements; corrosion control and protection; air and vacuum control; meter and service line sizes; PRY requirements; operations and maintenance considerations (blocking valves, blow-offs, etc.); construction considerations (polypigging, pressure testing, chlorination, flushing, and bacterial testing); etc. Some reviews include hydraulic modeling by the Water Utility staff. The City requires that Renton_Ch6 Policies Criteria and Standards. doc 1017104 6-17 Chapter 6 the plans include applicable standard details and that the plan notes repeat key provisions of the City specifications for the construction and testing of water distribution system mains and appurtenances. Plans must be signed and stamped by a Washington State licensed professional engineer. The Water Utility Engineering Supervisor indicates his approval of the plans by signing and dating the construction drawing originals within a City approval block. 6.8 Policies and Requirements for Outside Parties The policies pertaining to water distribution system facilities and financing are listed above and are applicable to both City CIP projects and private developer projects. Normally during the planning phase of a developer project a Pre-Application Conference is held with the developer's engineer .. Members of the Water Utility engineering staff, Fire Marshall's staff, and Development Services staff participate in the meeting. Based upon the preliminary information about the proposed project the City staff reviews with the developer's engineer anticipated requirements for the project: main sizes and main extents, fire flow, looping, pressure control and pressure issues, construction practices, etc. , . While the detailed requirements for main extensions vary from project to project some general requirements are: • Single-family residential fire flow (less than 3,600 SF): 1,000 gpm. • Single-family residential fire flow (yeater than 3,600 SF): 1,500 gpm or more. • Other fire flow: determined by the Fire Marshall's staff. • Maximum distance between fire hydrant and single-family residence-measure along roadways and driveways: 300 ft • Maximum distance between fire hydrant and other structures-measure along roadways and driveways: 150 ft. (These fire hydrants shall be located no closer than fifty feet [50'] from the structure and no greater than three hundred feet [300']. The primary hydrant shall be not further than one hundred fifty feet [150'] from the structure.) • The lead from the service main to the hydrant shall be no less than six inches (6") in diameter. Any hydrant leads over fifty feet (50') in length from water main in hydrant shall be no less than eight inches (8") in diameter. • All hydrants newly installed in single-family residential areas shall be supplied by not less than six inch (6") mains, and shall be capable of delivering one thousand (1,000) gpm fire flow over and above average maximum demands at the farthest point of the installation. Hydrant leads up to fifty feet (50') long may be six inches (6") in diameter. • The maximum distance between fire hydrants in single.;.family use district zones shall be six hundred feet (600'). • The maximum distance between fire hydrants in commercial, industrial, and apartment (including duplex) use district zones shall be three hundred feet (300'). 6-18 Renton_Ch6 Policies Criteria and Standards. doc 10/7/04 POLICIES, CRITERIA, AND STANDARDS • Lateral spacing of fire hydrants shall be predicated on 'hydrants being located at street intersections. • Special Requirements for Buildings More Than Two Hundred Feet (200') from a Street Property Line: The following requirements apply to all building construction projects in which buildings are located or are to be located such that any portion is more than two hundred feet (200') in vehicular travel from a street property line, except detached single-family dwellings: • Buildings that have required fire flows of less than two thousand five hundred (2,500) gpm may have fire hydrants on one side of the building only. • When the required fire flow is over two thousand five hundred (2,500) gpm, the fire hydrants shall be served by a main which loops around the building or complex of buildings and reconnects back into a distribution supply main. • The number of fire hydrants that shall be required for the new construction or a defined risk shall be based on the amount of fire flow that is required to protect said risk. The requirement shall be one hydrant per one thousand (1,000) gpm fire flow. These fire hydrants shall be located no closer than fifty feet (50') from the structure and no greater than three hundred feet (300'). All hydrants are to be accessible to Fire Department pumpers over roads capable of supporting such fire apparatus. The Fire Marshall shall determine the location of the hydrants based upon a determination of utility, topography, and building or structure; minor deviations may be granted by Fire Department approval of written requests. • Provisions shall be made wherever appropriate in any project for looping all dead end or temporarily dead end mains. A minimum fifteen foot (15') easement shall be required. . • Fire services must be equipped with double check valve assemblies with detector meters or for smaller fire services meters in-line with double check valve assemblies. • Fire service assemblies may be installed within the building provided that: (1) the distance between the main and the assembly is less than 50 feet, (2) the detector meter is equipped with a touch read pad on the outside of the building in a location accessible to the meter reader, and (3) there is adequate clearance around the assembly for testing and maintenance. The City does not have a "Developer Brochure" that contains a compilation of the water distribution requirements. The City of Renton Municipal Code is available online at Municipal Research and Services Center at http://www.mrsc.org. The requirements can be found under Title IV, Development Regulations, and Title VIII, Health and Sanitation. Renton_eh6 Policies Criteria and Standards. doc 1017104 6-19 Chapter 6 6.9 Construction Certification and Follow-up Procedures Every water distribution system project is assigned a City project manager. For developer projects the project manager is a member of the Development Services Division, PlanninglBuildinglPublic Works Department staff. For CIP projects the project manager is a member of the Utility Systems Division, PlanninglBuildinglPublic Works Department staff The project manager is responsible for successful outcome of the project. The project manager is responsible , for maintaining a project summary file'for each one of his or her projects. All construction drawings and specifications for CIP projects and all construction drawings (containing notes listing key City specifications) for developer projects are reviewed and approved by the Water Utility Engineering Supervisor before they are released for construction. A construction inspector from the Development Services Division is assigned to every water distribution system project. For some CIP projects contracted special inspections are performed (e.g., pipe welds, structural work) and the services of engineering consultants are used. Every project has a pre-construction conference prior to the start of work. Run by the City project manager, the meetings are attended by the project manager, construction inspector, general contractor, subcontractors, Fire Marshall staff, and ether key City and utility company representatives. All phases and aspects of the construction are reviewed so that the construction team is fully aware of and understands the project requirements. In addition to ensuring that water mains and appurtenances are constructed in accordance with 'the approved plans and specifications, the construction inspector ensures that all mains are pressure tested at the specified pressures and that they successfully pass the test. A written report of each pressure test is given to the project manager. The construction inspector also witnesses main cleaning (polypigging), disinfection, main flushing, and water quality testing and reports the results to the project manager. Results of bacteriological tests (Total Coliform) are sent to the , project manager from the testing laboratory. All of the test result reports are maintained in the proj ect summary file. Review of design drawings has been discussed previously. The approved for construction drawings (mylars) are kept in hanging files on the sixth floor of Renton City Hall. At the conclusion of construction the' construction mylars are returned to the developer's engineer or to the City CIP design engineer, as applicable, to be updated for use as the construction record drawings. A licensed professional engineer certifies that the drawings are a record of construction ("As-built" or "Revised to Conform to Construction Records"). The "As-built" drawings are stored in hanging files on the sixth floor of City Hall. Additionally, all construction drawings and "As- built" drawings are microfilmed and electronic images (TIF format) are made. The electronic images are stored on a City server that is backed up daily. The images are indexed in an electronic file system and can be looked up and viewed online. 6-20 Renton _ Ch6 Policies Criteria and Standards, doc 1017104 POLICIES, CRITERIA, AND STANDARDS All water distribution projects must have a completed Construction Report for Public Water System Projects on file before the new work can be tied into the system. Some reports must be submitted to DOH (those for which DOH has not delegated review authority to the City). The others must be completed and kept on file in the Project Summary File. All reports must be prepared, stamped, and signed by a professional engineer licensed by the State of Washington. Construction Reports for developer projects are prepared and signed by a member of the Development Services Division staff. Project Reports for CIP projects are prepared and signed by a member of the Utility Systems Division staff. Renton_Ch6 Policies Criteria and Standards. doc 1017104 6-21 Chapter 7 WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY This chapter describes the City's sources of supply, including the condition and capacity of its sources; the water rights associated with its sources; and the water quality requirements for its sources. This chapter also discusses the City's interties as they are related to its source of supply and provides a summary of Renton's Wellhead Protection Program. Most of the water systems adjacent to the Renton service area are either directly or indirectly supplied by Seattle Public Utilities (SPU) as a wholesale customer. Renton is unique among water purveyors in the area in that it has pursued and developed its own independent water supply sources to meet its needs. Most other systems rely on SPU for all or most of their supply. Renton will maintain its capability to supply a growing population and control water rates by: 1. Protecting the water quality of the existing wellfields from adverse development impacts in the recharge area. 2. Continuing "beneficial use" of its well supply and protecting the legal integrity of the existing water rights. 3. Negotiating with adjacent utilities for emergency supply. 4. Participating in regional water supply organizations. S. Considering raw water treatment as required. Water quality policies and programs to protect existing groundwater supply sources are among the City's highest priorities. 7.1 Water Supply Resources Renton's supply is derived from four water sources: the Cedar Valley Aquifer, Springbrook Springs, the Maplewood Aquifer, and the recharge area for Well SA. Each of these is described below and is shown on the water system map included in Appendix F. For the City'S primary supply, it maintains and operates six wells within the Cedar Valley Aquifer and three wells within the Maplewood Aquifer. It also has Springbrook Springs, a single artesian spring, and Well SA, which is the only well the City operates within that particular recharge area. Renton_Ch7 Water Resouces.doc 1017104 Chapter 7 7.1.1 Cedar Valley Aquifer The primary source of the Renton municipal water supply is the Cedar Valley Aquifer, designated a sole,source in 1988 by the U.S. Environmental Protection Agency (EPA). The aquifer boundaries correspond to the aerial extent of the post-Vashon alluvium of the lower Cedar River Valley. This shallow aquifer is physically susceptible to contamination since there is no confining layer between the land surface and the water table to retard the downward migration of hazardous chemical spills or other releases of contaminants. In downtown Renton it is especially vulnerable to degradation due to the presence of numerous potential sources of contamination within the capture zone ofthe wellfield. In the vicinity of the well field constructed in downtown Renton, the aquifer consists of coarse-grained sediments deposited at the mouth of the prehistoric Cedar River during the last glacial period. The water table is approxImately 23 feet from the surface and the aquifer has an average thickness of70 feet in the vicinity of the wellfield. Soils overlying the aquifer are silt, sand, and gravel while the aquifer itself is comprised of coarser, very permeable sandy gravel. Aquifer transmissivity is estimated to range from about 1 to 2.3 million gallons per day per foot (mg/day/ft). The transmissivity of the wells RW-1, RW-2 and RW-3 is 1.00 mg/day/ft; PW-8 is 1.30 mg/day/ft; PW-9 is 2.30 mg/day/ft. Specific yield of the wells RW-1, RW-2 and RW-3 is 0.025 cu ftlcu ft; PW-8 is 0.030 cu ftlcu ft; PW-9 is 0.020 cu ftlcu ft (Analysis Report for the City of Renton Cedar River Valley Aquifer Tesi, RH2 Engineering, 1987). The hydraulic conductivity is on the order of 2,500 ftlday assuming an average transmissivity for all the Cedar Valley Aquifer wells of 1.3 mg/day/ft. Recharge is local, both from direct precipitation and subflow. The Washington State Department of Health (DOH) contamination susceptibility rating of wells located in the Cedar Valley Aquifer is "moderate to high." 7 .1.2 Downtown Wells The City operates six production wells in the Cedar Valley Aquifer. Wells RW-1, RW-2, and RW-3 each have a pumping capacity of 2,200 gpm and are screened at depths ranging from 50 to 105 feet. Well EW-3 may be used in an emergency. Its capacity'is 1,600 gpm and it is screened from 40 to 70 feet below the ground surface. Wells PW-8 and PW-9 have pumping capacities of3,500 and 1,200 gpm, respectively. The wells are screened at depths ranging from 50 to 105 feet. 7.1.3 Springbrook Springs A small amount of the City's current water supply comes from Springbrook Springs, located at the extreme southern city limits. A water-bearing sand and gravel layer enclosed in a thick sequence of glacial till intercepts the surface of the hillside at Springbrook Springs. Two infiltration galleries collect and channel approximately 1,000 gpm into the transmission pipeline. Flow measured at Springbrook treatment building varies over the year with the flow into the system being the highest in the 7-2 R. W. Beck Renton_Ch7 Water Resouces,doc 1017104 WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY summer months. Looking at records from 1988 through 2004, the low flow was 272 gpm in October 1994 and the high flow was 1,188 gpm in July 2000. The Springs have not been extensively studied. The recharge area has been estimated by combining the surface area draining to the Springs with the estimated groundwater recharge area. The latter is based on well driller reports for wells in the vicinity of the Springs. The DOH contamination susceptibility rating of the Springs is "moderate to high." 7.1.4 The Maplewood Production Aquifer The Maplewood production aquifer is located east or the downtown area under the Maplewood Golf Course. It serves as a redundant source of supply for the vulnerable Cedar Valley Aquifer. This aquifer is believed to extend northward into hydrostrati- graphically correlated zones beneath the North Uplands. It ranges from 70 to 120 feet thick and is encountered from approximately 135 to 345 feet below the golf course. The Maplewood Aquifer is confined with evidence of some leakage. Gradients are predominantly upward. Estimated transmissivities range from 49,000 to 76,000 gpd per foot with corresponding hydraulic conductivity ranging from 94 to 128 feet per day. Recharge is believed to occur predominantly from the North Uplands while discharge occurs in the Cedar Valley via upward flow to the alluvial aquifer east of the bedrock narrows. Other recharge and discharge points may exist. The DOH contamination susceptibility rating of the Maplewood Aquifer is "low." 7.1.5 Maplewood Wells The City has three Maplewood wells (PW-ll, PW-12, and PW-17), which have pumping capacities of 2,500 gpm, 1,600 gpm, and 1,500 gpm, respectively. These wells are screened at depths ranging from 284 to 344 feet. They will become fully operational again in 2005 once the water treatment facilities and other improvements are completed. The City has a permit for a water right at this location for Well 10. While the City has no existing plan to develop this well, it will consider development of Well 10 in the future as an option for supplementing peak demand needs. 7.1.6 Well SA Well SA is located near the northern city limits east of Lake Washington. This well has a pumping capacity of 1,500 gpm and is completed in a sand and gravel aquifer zone approximately 280 to 390 feet below ground (about -42 to -152 feet mean sea level). The aquifer zone is overlain by stratified glacial deposits of fine to coarse sand and gravel layered with silt and clay. The recharge area for Well SA is not known but there are some indications that the well may be withdrawing from the Maplewood production aquifer, which is believed to extend northeasterly from the Maplewood area. The DOH contamination susceptibility rating of Well SA is "low." Renton_Ch7 Water Resouces.doc 10/7/04 R. W. Beck 7-3 Chapter 7 7.2 Condition of Supply Sources The City has capital improvement and maintenance programs to upgrade and to maintain its sources in good condition and to comply with water quality criteria. During the last 10 years, the City has upgraded the treatment systems at its Springbrook Springs and all downtown wells. This includes modernization of the disinfection systems and the addition of sodium hydroxide for pH adjustment to reduce the corrosivity of the water. At the present time, water treatment improvements to remove hydrogen sulfide, manganese, and ammonia from the Maplewood wells (PW-ll, PW-12, and PW:.17) are under construction. When it is completed in 2005, the Maplewood treatment system will be able to deliver up to 3,000 gpm to the distribution system. The plant has provisions to allow adding additional filters in the future to increase the capacity to 5,500 gpm. The Capital Improvement Program presented in this Water System Plan includes treatment to Well 5A to remove manganese and hydrogen sulfide. The City may install additional treatment capacity at the Maplewood treatment facility in the future in order to utilize the full water rights and pumping capacity of its wells there. This would occur beyond 2011 and therefore is not included in the six-year CIP. 7.3 Cap~city of Supply Sources In general, the City'S sources are equipped with pumping capacity to deliver the certificated City water rights to the· distribution system. The installed pumping equipment has the capacity to deliver the water equal to the peak day requirements of the Renton system through 2025. In addition, the City has a total of five emergency interties with neighboring water utilities and is considering a new intertie with the Skyway Water and Sewer District. . At present, Well 5A is only used for back-up supply because of the water quality issues mentioned above. Also, the Maplewood wells are currently not in use pending completion of the new water treatment plant. The new Maplewood treatment facility has a c.apacity of 3,000 gpm whereas the wells have a capacity of 5,500 gpm. Therefore, the facility will not be able to treat the full production capacity of the wells at this time. The City has made provision to expand the treatment capacity in the future when the full pumping capacity is needed. Well 4 was decommissioned in 1962. Although the City is currently not utilizing the water right associated with this well, the City could drill a new well in the future if needed. This would provide an additional 170 gpm. The City is able to meet its existing water demands without the Maplewood wells, Well 5A, and Well 4. When the improvements are completed for the Maplewood wells and We1l5A, and if a new well were drilled for We114, then these would all help the City to meet future demands .. 7-4 R. W. Beck Renton_Ch7 Water Resouces.doc 1017/04 WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY 7.4 Water Rights The State Water Code, as outlined in Title 90 of the Revised Code of Washington (RCW), states that all surface and ground waters of the state are the property of the public. It is, therefore, the policy of the state to promote the use of the public waters in a fashion which provides the maximum benefit arising from both diversionary uses of the state's public water and the retention of waters within the streams and lakes in sufficient quantity and quality to protect instream and natural values and rights (90.03.005 RCW). The state takes responsibility for determining who, among the various competing basin stakeholders, is allowed to use, divert, or consume the water. When an application to obtain water -rights is submitted to the Washington State Department of Ecology (DOE), the date of receipt of this application establishes the priority of the water right. Prior to the development of a source of supply, a temporary permit is issued by DOE to construct, develop, and test the supply source. A water right may then be issued following a thorough review process, a determination of the amount of supply that is put to beneficial use, and the impacts on the various other basin stakeholders. This water right establishes the priority use of the water, and becomes an appurtenance to the property. Renton has developed independent water sources in order to maintain greater control over the management and costs of its water supply. Through the development of independent sources of supply the City strives to protect the public health, ensure adequate water supply to meet the requirements of its customers, and support the economic prosperity of the City. Consistent with DOE's procedures for issuing water rights, all of the City's water rights specify an instantaneous flow rate (QD and a maximum annual withdrawal volume (Qa). In issuing recent water rights certificates to the City, DOE has conditioned the permits with a limitation on the total withdrawals by the City of 14,809 acre feet per year, recognizing the City'S water rights may have an impact on . the flows in the Cedar River. The City conducts monitoring of the river to detect and mitigate any measurable effects. The Cedar River is an important regional resource, being the major source of supply for the SPU regional water system and a number of other uses; instream flows are important to anadromous fish and the management of water levels in Lake Washington. Copies of the City's water rights are in Appendix C. 7.4.1 Existing Water Rights The City has 19 water right certificates and permits; 17 of these water rights are primary. A summary of the City'S existing water rights for municipal supply is presented in Table 7-1. The total instantaneous flow rate from the primary rights is 21,320 gpm. The annual rights equal 14,809 acre feet per year, which was set by DOE and is less than the sum of the City's annual rights shown on its certificates. All of the City's water rights are currently being used to provide supply with the exception of the Maplewood wells, Well SA, and Well 4. The three existing Maplewood wells will become active again once the treatment plant improvements are completed in 2005. The City has a permit for Well 10, but it has not yet been RentoD_Ch7 Water Resouces.doc 10/7/04 R. W. Beck 7-5 Chapter 7 developed. Well 4 was abandoned and therefore the City is not using the water right associated with this well. Well SA is currently not being used due to water quality issues. The water right for Well EW -3 was transferred to the new wells R W -3, R W -1, and RW-2. However, in accordance with the water right certificate, EW-3 continues to be maintained should it be needed to intercept contaminants that could affect the other wells. EW -3 can also be used as an emergency supply after notifying DOE, in -the event that the City's other sources fail. The City has both surface and ground water rights on Springbrook Springs. The controlling quantity is the instantaneous flow of 1,050 gpm. In reality, the water available from the Springs varies seasonally and the flows have declined in recent years. \ The cUrrent flows from the Springs are 300 to 1,200 gpm. The total instantaneous flow for all of the City's water rights includes the total certificated amount for Springbrook Springs rather than the actual flows that are currently available. The City has sufficient annual water rights to meet its existing and projected 20-year (2025) annual water requirements. There is a projected surplus of2,232 ac-ft per year with the forecasted 2d-year water demands. The City will have sufficient annual water rights even if Wells 4, SA, and 10 are not in service. The sources of supply will also be marginally able to meet the projected 2025 peak day demand if Wells 4, SA, and 10 are not in service. However, the estimated existing peak hour demands exceed the City's instantaneous water rights by 6,215 gpm. Currently the difference in supply \ capacity and peak hour demands is met by the City's storage. In 2025 the. peak hour demands will exceed the instantaneous water rights by approximately 17,220 gpm. The City's total storage is sufficient to meet the additional peak hour demands. However, additional storage or supply in the 196 Zone would help support the peak hour demands in the future. The need for additional storage and/or additional interties is discussed in the next section. 7.4.2 Forecasted Water Rights Renton's forecasted water rights_are shown on Table 7-2. The City does not anticipate applying for any new water rights or changes to its existing water rights. In 1997 the City had applied for a change of place for several of its water rights, but since then it has withdrawn those applications. Th·e City's forecasted water rights are the same as its existing water rights with the exception of intertles. The City plans to pursue new interties with adjacent water purveyors. Currently the City is pursuing an intertie with Skyway Water and Sewer District. If it is accepted it would be installed within the next sixyears and therefore is included in the City's six-year CIP in Chapter 10. The City's annual water rights are sufficient to supply average day demands and total annual demands through the next 20 years (and for buildout demands as presented in Chapter 4). The exception would be if the level of development associated with Boeing Redevelopment Alternative No. 4 were to occur. Without any additional conservation, the projected average day demands for Boeing Alternative No.4 (as shown on Table 4-15) would exceed the City's annual water rights shortly before 2025. (The shortfall in demands would be approximately 0.3 mgd in 2025.) If 7-6 R. W. Beck Renton_Cb7 Water Resouces.doc 10/7/04 WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY additional conservation were to occur, then the projected average day demands (as shown on Table 4-16) would exceed the annual water rights between 2025 and buildout. The City would then need to find additional sources of supply to meet its future annual demands. While the City's instantaneous water rights are not sufficient to meet the City'speak hour demands (as shown on Tables 7-1 and 7-2), the City can use its storage and interties to help meet its projected future peak demands. The City is planning to build several new storage facilities and upgrade some of its existing storage facilities, which would result in additional storage. Planned storage in the 565, 196, 425, and 320 Zones will be phased during the next 20 years, which will help provide capacity to meet its peak demands. It is recommended that the City maintain its existing interties and emergency supply agreements with other utilities and pursue new interties. Other alternatives for fully meeting its demand needs are discussed later in this chapter in Section 7.10, "Long Range Water Supply Planning." 7.5 Interties The City's interties were described in Chapter 3 as part of the description of existing facilities. Tables 7-1 and 7-2 show the existing and future interties that are included as part of the City's source of supply. All nine of the existing interties shown on the two tables and the future intertie included on Table'7-2 are for emergency supply. The City's emergency water supply interties with SPU are located within the Rolling Hills, Highlands, and West Hill areas. Renton also has emergency interties with the City of Kent (independent supply) and the City of Tukwila (indirectly supplied by SPU). Rentoo_Ch7 Water Resouces,doc 1017104 R. W. Beck 7-7 WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY Table 7·1 Existing Wattu Rights Status Forecasted Water Use From Forecasted Water Right Status Existing Water Rights Sources (20 Year Demand) , (Excess/Deficiency -20 Yr I Demand in Water Right) Maximum Maximum Maximum Maximum Maximum Maximum Permit Instantaneous Annual Instantaneous Annual Instantaneous Annual I Certificate or Name of Rightholder or Source Flow Rate (Q) Volume (Q.) Flow Rate (Q) Volume (Q.) Flow Rate (QI) Volume (Q.)ac-Claim No. Claimant Priority Date Name/No. Primary or Supplemental gpm ac-ftJyr gpm ac-ftJyr gpm ftlyr SWC463 City of Renton May 17, 1930 Springbrook Creek Supplemental 1,032 2147 Northwest Water Co. Apr 26, 1939 c;edar River Supplemental 449 Infiltration Gallery G1-20605C City of Renton May 3,1973 (Springbrook Primary 1,050 1,680 I Springs) I GWC884-D City of Renton Nov 1942 Well 4 Primary 170 273.5 GWC 886-0 City of Renton Jan 1944 Well RW-1 Primary 1,040 1;676 GWC 5838-A City of Renton Apr 14, 1966 Well RW-1 Primary 960 1,536 GWC 887-D City of Renton Jan 1944 Well RW-2 Primary 1;040 . 838 GWC 5835-A City of Renton Apr 14, 1966 Well RW-3 Primary 1,600 2,560 GWC 5836-A City of Renton Apr 14, 1966 Wells 1, 2, 3 Primary 1,960 3,136 GWC 3591-A City of Renton Feb 18, 1953 Well RW-5 Primary 1,300 2,000 GWC 5834-A City of Renton Apr 14, 1966 Well RW-5 Primary 200 320 GWC 6775-A City of Renton Apr 1,1968 Cedar River Park Primary 3,000 4,839 (Well PW-8) GWC 6776-A City of Renton Jan 21,1969 Cedar River Park Primary 500 800 (Well PW-8) G1-24191C City of Renton Oct 18,1982 Well PW-9 Primary 1,300 1,040 G1-24783P City of Renton Jan 2, 1986 Well PW-10 Primary 1,600 1,792 G1-247181 P City of Renton Jan 2,1986 Well PW-11 Primary 1,600 1,792 G1-25396P City of Renton Feb 23,1989 Well PW-11 Primary 900 1,008 G1-24782P City of Renton Jan 2,1986 Well PW-12 Primary 1,600 1,792 G1-25397P City of Renton Feb 23,1989 Well PW-17 Primary 1,500 1,680 Total ***** .... * ... . ..... ****** .. ...****** .... 21,320 14,809 38,542 12,Sn (17,222) 2,232 .- Rentor -'0 Water Resouces.doc 1017/04 R. W. Beck 7-8 Intertie Name/Identifier Tiffany Pari< SWD Sta. #39 Fred Nelson SWD Sta. #34 Boeing CSTC Fire PRV28 SWD Sta. #33 PRV35 SWD Sta. #38 PRV6 SWDSta. #37 SWDSta. #36 Tukwila PRV23 Kent PRV23 Total ---- ----- Rentoll_Ch7 Water Resouces.doc 1017/04 ..vATER SUPPLY, WATER RIGHTS, AND WATER QUAL _ . Table 7·1 (cont.) Existing Water Rights Status Existing Limits on Intertie Water Use Maximum Maximum Instantaneous Annual Flow Rate (QI) Volume (Q.) Name of Purveyor Providing Water gpm ac-ftlyr City of Seattle 1,050 City of Seattle 925 City of Seattle 2,800 City of Seattle 700 City of Seattle 700 City of Seattle 320 City. of Seattle 700 City of Tukwila 2,400 - City of Kent 1,900 6,295 --------~ ... Existing and Forecast Current and Forecast Intertle I Consumption Supply Status Throuah Intertie (Excess/Deficiencv) Maximum Maximum Maximum Maximum Instantaneous Annual Instantaneous Annual Flow Rate (<l.) Volume (Q.) Flow Rate (<l.) Volume (Q.) gpm ac-ftlyr gpm ac-ftlyr , 0 6,295 ------ R. W. Beck 7-9 WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY Table 7·2 F ted Water Riahts Stat Forecasted Water Use From Forecasted Water Right Status I Existing Water Rights . Sources (20 Year Demand) (Excess/Deficiency -20 Yr Demand In Water Right) Maximum Maximum Maximum Maximum Maximum ,. Maximum Permit Instantaneous Annual Instantaneous Annual Instantaneous Annual I Certificate or Name of Rightholder or Source Flow Rate (QI) Volume (Q.). Flow Rate (Ill) Volume(Q.) Flow Rate (Ill) Volume(Q.) Claim No. Claimant Priority Date Name/No. Primary or Supplemental gpm ac-ftlyr gpm ac-ftlyr gpm ac-ftlyr I SWC463 City of Renton May 17, 1930 Springbrook Creek Supplemental 1,032 2147 Northwest Water Co. Apr 26, 1939 Cedar River Supplement'll 449 Infiltration Gallery G1-20605C City of Renton May 3,1973 (Springbrook Primary 1,050 1,680 Springs) GWC 884-0 City of Renton Nov 1942 Well 4 Primary 170 273.5 GWC 886-0 City of Renton Jan 1944 Well RW-1 Primary 1,040 1,676 GWC 5838-A City of Renton Apr 14, 1966 Well RW-1 Primary 960 1,536 GWC887-0 City of Renton Jan 1944 Well RW-2 Primary 1,040 838 GWC5835-A City of Renton Apr 14, 1966 Well.RW-3 Primary 1,600 2,560 GWC5836-A City of Renton Apr 14, 1966 Wells 1, 2, 3 Primary 1,960 3,136 GWC 3591-A City of Renton Feb 18, 1953 Well RW-5 Primary 1,300 2,000 GWC5834-A City of Renton Apr 14, 1966 Well RW-5 Primary 200 320 GWC 6775-A City of Renton Apr 1,1968 Cedar River Park Primary 3,000 4,839 (Well PW-8) GWC6776-A City of Renton Jan 21,1969 Cedar River Park Primary 500 800 (Well PW-8) G1-24191C City of Renton Oct 18,1982 Well PW-9 Primary' 1,300 1,040 G1-24783P City of Renton Jan 2,1986 Well PW-10 Primary 1,600 1,792 G1-247181P City of Renton Jan 2,1986 Well PW-11 Primary 1,600 1,792 ' G1-25396P City of Renton Feb 23,1989 Well PW-11 Primary 900 1,008 G1-24782P City of Renton Jan 2,1986 Well PW-12 Primary 1,600 1,792 I G1-25397P City of Renton Feb 23,1989 Well PW-17 Primary 1,500 1,680 Total ........... ...... ........ ......**** ... 21,150 14,809 38,542 12,m (17,222) 2,232 Renton rIO Water Resouces.doc 1017/04 R. W. Beck 7-JO Intertie Name/Identifier Tiffany Park SWDSIa. #39 Fred Nelson SWD Sta. #34 Boeing CSTC Fire PRV28 SWD Sta. #33 PRV35 SWDSta. #38 PRV6 SWD Sta. #37 SWD Sta. #36 Tukwila PRV23 Kent PRV23 Skyway (future) Total ---_ .. _--- Renton_Ch7 Water Resouces.doc 1017104 iJATER SUPPLY, WATER RIGHTS, AND WATER QUAL Table 7·2 (cont.) Forecasted Water Rights Status Existing Limits on Intertie Water Use Maximum Maximum Instantaneous Annual Flow Rate (Qi) Volume (Q..) Name of Purveyor Providing Water gpm ac-Wyr City of Seattle 1,050 . City of Seattle 925 City of Seattle 2,800 City of Seattle 700 City of Seattle 700 City of Seattle 320 City of Seattle 700 City of Tukwila 2,400 City of Kent 1,900 Skyway Water and Sewer District 2,500 8,795 Existing and Forecast Current and Forecast Intertie Consumption Supply Status Throuah Intertie (Excess/Deficiency) Maximum Maximum Maximum Maximum Instantaneous Annual Instantaneous Annual Flow Rate (Q) Volume (Q.) Flow Rate (QI) Volume (Q..) gpm aC-Wyr gpm ac-Wyr 0 8,795 R. W. Beck 7-11 Chapter 7 7.6 Water Quali~y Plan and Treatment The City of Renton performs regular water quality monitoring of its system as described in Chapter 9, Operations and Maintenance, and as required by WAC 246- 290-300. The City's water quality at its supply sources, storage facilities, and within -its distribution system satisfactorily meets state and federal requirements on a regular basis. - The City maintains water quality within its system through the following approaches: (1) routine system flushing within its distribution system in order to maintain satisfactory water quality, (2) a main replacement program to eliminate dead end mains and replace cast iron, asbestos cement, and old steel pipes, and (3) installation of pH meters at all well sites in order -to better manage pH and as a result reduce corrosion within the system. - It is recommended that the City take the following actions as part of its water quality planning programs: • The City should continue to track proposed new water quality laws, such as the Ground Water Rule, Disinfection Byproducts Rule, and other rules and regulations being considered by the EPA and DOH in order to plan for any impacts on its water system and its operation to ensure planning is in place to comply with the potential impacts of these regulations. At this time it is not possible to detennine the impact of severai proposed rules. • The City should continue to pursue both susceptibility and area waivers for the testing of pesticides (SOCs) in the future to reduce the substantial testing cost for these chemicals. • The City _ should continue to implement its corrosion control treatment improvements as necessary to reduce levels of corrosion within the distribution system and private plumbing. 7.6.1 Existing Water Quality A review of the City'S water quality testing records indicates that overall water quality is excellent with only minor problems related to aesthetic problems caused by iron, manganese, and hydrogen sulfide. These are secondary contaminants that do not affect public health. Consequently, treatment is necessary only to minimize nuisance and aesthetic related problems such as odor and discoloration. All testing for bacteria (total coliforms) has been negative during the past four years. However the City'S water is corrosive, and therefore is treated to prevent corrosion-related water' quality problems. 7.6.2 Treatment Gaseous chlorine is added to all of the City's sources for disinfection and sodium fluoride is also added to prevent dental cavities. Sodium hydroxide is added at Wells 7-12 R. W. Beck Renton_Ch7 Water Resouces.doc 10/7/04 WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY RW-I, RW-2, RW-3, PW-8, PW-9, and EW-5, as well as at Springbrook Springs, to raise the pH of the water delivered to the distribution system for pH control. In addition, the Maplewood treatment facility is under construction, which will treat water from wells PW-ll, PW-12, and PW-17. The Maplewood treatment facility is expected to be completed by June 2005. The project will: (I) remove hydrogen sulfide by converting it to sulfate by adding oxygen (granular activated carbon will be used as a catalyst), (2) remove manganese using green sand filters, and (3) convert ammonia in the water to nitrogen gas by reacting it with sodium hyphochlorite in a , contact basin. A sequestering agent (Aqua Mag) is used in Well SA to treat iron and manganese. Since there is also naturally occurring ammonia in the water at Well SA, the chlorine dosage is set to create monochloramines for disinfection. Aqua Mag is also added at the North Talbot Booster Pump Station, the West Hill Booster Pump Station, and Pressure-Reducing Valve (PRV) Station 20 in the Renton Hill area for corrosion control because of the significant number of cast iron distribution pipelines in these areas. 7.6.3 Water Quality Monitoring The City has implemented a comprehensive and proactive water quality monitoring program. It includes monitoring for operations, regulatory monitoring to meet the requirements of the federal Safe Drinking Water Act, and monitoring to manage the City's aquifers. Monitoring operations measure chlorine levels and pumping rates for each production well, sample polyphosphate levels, and take pH measurements as part of the corrosion control program. Regulatory monitoring measures bacteria, organic and' inorganic chemicals, trihalomethanes, and disinfection byproducts radionuclides, lead and copper in the water. The sampling is performed at locations and with the frequencies required by state and federal regulations. Aquifer monitoring is used to identify any contamination and to track water level of the aquifer in compliance with state and federal drinking water rules. This program is described in detail in Appendix L of this Water System Plan. Water quality sampling is the responsibility of the water maintenance supervisor and is carried out on a daily basis by a team of utility technicians. In addition to ensuring that water treatment and maintenance are performed effectively, the water maintenance supervisor is responsible for ensuring that monitoring is carried out and for managing water quality data and records both for routine and special monitoring programs. The Water Maintenance Division maintains a water quality laboratory located at the City shops building at 3555 SE 3rd Avenue. The City's water quality laboratory is equipped to do analysis for turbidity, chlorine residual, fluoride residual, pH, and temperature. Microbiological and certain physical and chemical parameters are analyzed by locally contracted commercial laboratories. This approach has worked well for meeting the City's sampling and testing needs. The City also maintains nine mechanical type well sampling pumps for extracting water quality samples from monitoring wells. These Renton_Ch7 Water Resouces.doc 1017104 R. W. Beck 7-13 C~apter 7 pump units can be used for the collection of all types of water quality samples, including volatile organic chemicals. A detailed description of the water quality sampling methods, the sampling locations, sampling frequency, and record keeping procedures are listed in the Drinking Water Quality Monitoring Program included as Appendix L. The estimated cost~ for the City's water quality monitoring are included in Chapter 9, Operations and Maintenance. 7.6.4 Corrosion Control Program Lead and Copper Rule The major reason for excessive copper levels, and occasionally high lead levels, at' home taps is the relatively low pH of the downtown wells (RW-I, RW-2, RW-3, PW- 8, PW-9, and EW-3) and Springbrook Springs water supplies. The raw water pH range is 6.3 to 6.6 for the downtown wells and about 7.2 for the Springs. Treatment with gaseous chlorine depresses the pH to slightly below the 6.3 to 6.6 range. Without pH adjustment, the levels in the distribution system typically range from 5.9 to 6.4. Water with pH less than 7.5 is aggressive in leaching copper and lead from the pipelines. A secondary corrosion-related concern is iron levels and associated colored water occurrences in areas of the distribution system with old, unlined cast iron and steel pipe. Lower pH levels often cause heavy corrosion of the iron and scale buildup, which can result in red water complaints when flushing or if there are surges in flow in the pipelines. Corrosion Protection: Source of Supply As a result of the low pH levels, the City has added corrosion control treatment to its downtown wells and Springbrook Springs. Sodium hydroxide is added to these sources to raise the pH to between 7.5 and 7.7. The Maplewood wells (PW -11, PW -12, and PW -17) are treated to provide a finished water pH of approximately 7.5. Phosphate inhibitor can also be added at the treatment plant for these wells. Well 5A water has a pH of approximately 8 and phosphate inhibitor can be added. The Corrosion Control Recommendation Report (March 1995) found that no additional corrosion control treatment processes are required for these sources. Corrosion Protection: Distribution Mains Since about 1976 the City has required that all water mains installed in the City be cement-lined ductile iron pipe. Additionally, since 1980 the City has required that water mains installed in high resistivity soils be wrapped in polyethylene. Beginning in 1994, the City specifications have required that all water mains be wrapped in polyethylene. These requirements were established to reduce the internal and external corrosion of water mains. 7-14 R. W. Beck Renton_Ch7 Water Resouees.doc 10/7/04 WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY In a few of the locations where the City's water mains are within the influence area of other utility lines that are protected with impressed current cathodic protection systems, the City's water mains are electrically bonded and/or protected with sacrificial anodes. The City has an ongoing monitoring program to monitor the cathodic protection on its water mains that are near Washington Natural Gas Company and Olympic Pipe Line Company pipes. Corrosion Protection: Steel Reservoirs Three of the City's six steel reservoirs are protected with impressed current cathodic protection systems (Mt Olivet, Highlands 565, and Rolling Hills 590). The six reservoirs are inspected by a corrosion control consultant approximately every five years. . The inspections examine the protective coatings as well as the cathodic protection systems. The interior and exterior protective coatings are repaired and/or replaced as recommended by the consultant. Adjustments and maintenance actions are made to the impressed current systems based upon the consultant's recommendations. 7.7 State and Federal Regulatory Requirements This section presents the current water quality standards of DOH and the EPA through the Safe Drinking Water Act (SDWA). The EPA is currently developing several new water quality regulations. The promulgation of these regulations has been delayed due to lawsuits, a lack of resources, and political considerations. Consequently, it is difficult to predict when they might become effective. The City should continue to track new water quality regulations, offer comments on draft rules as appropriate, and plan for any additional monitoring and/or treatment as may be required. The following subsections contain descriptions of specific rules that are new or pending or that have special requirements for the City in addition to requirements of the federal SDW A. All rules that are included in the SDWA and that apply to Renton are shown in Table 7-3. 7.7.1 Total Coliform Rule The City's water system is classified as a Group A public water system according to DOH. Drinking water samples must be collected for bacteriological analysis from representative points in the distribution system at regular time intervals. The number of water samples is dependent upon the population being served by the system. The City is required to have a Coliform Monitoring Plan on file and approved by DOH. This plan identifies coliform monitoring locations and sampling procedures. The City'S Coliform Monitoring Plan is included in Appendix L, to the Drinking Water Quality Monitoring Program. All bacteriological tests conducted by the City for the last four years have been negative. Renton_Ch7 Water Resouces.doc 1017104 R. "V. Beck 7-15 Chapter 7 Table 7·3 Existing and Future Requirements of the Safe Drinking Water Act Regulation Existing Requirements Total Coliform Rule Interim Enhanced Surface Water Treatment Rule Stage 1 Disinfectants and Disin~ection Byproducts Rule . long Term 1 Enhanced Surface Water Treatment Rule Radionuclides Arsenic Future Requirements Ground Water Rule Stage 2 Disinfectantsl Disinfection Byproducts Rule (DBP) "' Effective/Compliance Dates Effective December 1990 Proposed Revision 2004 (Final rule has not been completed) Final Revision 2006 Effective December 1998 Compliance by December 2001 Effective December 1998 Compliance by January 2004 Effective February 2002 Compliance by March 2002 Effective December 2003 Compliance by December 2006 Effective January 2001 Compliance by January 2006 Final rule December 2004 (Final rule has not been completed) Final rule August 2003 Effective July 2005 Regulation Summary and City Status The City meets the requirements of this rule. The City monitors for Cryptosporidium that is regulated by this rule. The City meets the monitoring requirements of this rule. This rule does not currently impact the City since it does not currently use surface water or groundwater that has been determined to be under the influence of surface water. If any of the City's wells are determined to be under the influence of surface water in the future, this rule will require review for cornpiiance. Based on the most recent radionuclide data, it does not appear that this rule would significantly impact the City. The National Academy of Sciences reviewed EPA's arsenic risk assessment and recommended in March 1999 that the agency revise the present standard "downward as quickly as possible." The National Academy of Sciences, National Drinking Water Advisory Council, and Science Advisory Board reviewed the proposed MCl for arsenic and the associated costs. The existing MCl of 50 ppb was reduced to a new standard of 10 ppb. The City monitors for arsenic and is well below the new standard. _ This rule may require that the City monitor for viruses, HPC bacteria, and Legionella. The City is already monitoring for viruses and HPC bacteria. The only possible change would be the additional regular monitoring requirement of legionella and a different monitoring schedule. Development of this rule is in progress and should be monitored closely. The City will be required to meet the requirements of this rule, which primarily impact how monitoring is to be done. This rule does not change the MCl limits of disinfection byproducts that the City must meet. ---------------------------------------- 7-16 R. W. Beck Renton_Ch7 Water Resouces.doc 1017104 Regulation Radon Rule WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY Table 7·3 Existing and Future Requirements of the Safe Drinking Water Act Effective/Compliance Dates Final rule March 2002 (Final rule has not been completed) Regulation Summary and City Status EPA's Health Risk Reduction and Cost Analysis evaluated costs and benefits for radon MCls from 4,000 to 100 pCill. EPA proposed an MCl of 300 and an alternative MCl of 4,000 pCi/L. The alternative MCl involves a holistic approach to addressing radon in the home, both from air (radon in the ground) and water. The City may be required to conduct monitoring under the new rule. 7.7.2 Stage 2 Disinfectants and Disinfection Byproducts Rule The Stage 2 Disinfectants and Disinfection Byproducts Rule (Stage 2 DBP) is one part of the Stage 2 Microbial and Disinfection Byproducts Rules. A draft Stage 2 DBP rule has been developed by the EPA and is currently being implemented. The rule becomes effective in July 2005. Stage 2 DBP regulates two disinfection byproducts (total trihalomethanes (TTHM) and five halo acetic acids (HAAS)) and requires additional monitoring on the part of utilities. Because Renton uses chlorine for disinfection, it will need to meet the requirements of the Stage 2 DBP. Included in these requirements is an Initial Distribution System Evaluation (IDS E), which will require the City to identify locations with high disinfection byproducts. These locations will then be used for compliance monitoring. Compliance with the MCLs will be calculated for each monitoring location, which differs from the current requirement. An additional requirement of this rule is that short-term peaks in DBP levels will also need to be identified and reported. 7.7.3 Ground Water Rule (Proposed) The final Ground Water Rule had a statutory deadline of July 2003 that was not met. The EPA anticipates having a final rule by the end of 2004 or beginning of 2005. This rule has five major components that are being considered. It is unlikely that any of the requirements of this rule would require that the City do anything that it is not already doing. 7.7.4 Radionuclides Rule (Proposed) This is currently a proposed rule that was originally to be finalized by the EPA by December 2000. A revised date for a finalized radionuclides rule is not known at this time. The radionuclides rule would define required testing frequencies and maximum contaminant levels. Radon testing is part of this rule and could have an impact on the City since radon is fairly common in groundwater. The City recently tested all sources for radionuclides; levels found were well below currently regulated levels. Renton_Ch7 Water Resouces.doc 10/7/04 R. W. Beck 7-17 Chapter 7 7.7.5 'Inorganic Chemical Analysis The City is required by DOH to take samples for. inorganic chemical analysis at the source after treatment. The complete inorganic chemical and physical analysis shall include the primary and secondary chemical and physical drinking water contaminants. The analyses on its well sources must be performed is every three years, except that nitrate must be monitored annually. 7.7.6 Organic Chemical Analysis Volatile organic chemicals (VOCs) and synthetic organic chemicals (SOCs) are monitored in all of.the City'S wells. Organic chemical monitoring standards require one sample every 3 months during the first 12 months. However, if no contaminants are detected in the first sample of a groundwater source, the purveyor shall sample that source once more during the 12-month period. If no chemicals are verified after the initial 12 months of monitoring, the purveyor shall monitor each source at least once every 36 months. Water must be sampled from each source and must be collected after the water has been treated. Recent chemical analyses of the City's supply soUrces show no contamination from VOCs or SOCs. The City must test for trihalomethanes at· all wells once a year since they are chlorinated. In the late 1980s tetrachloroethylene (PCE) was detected in the downtO'.vn '.vells. The source '.vas found to be condensate from a dry cleaning business that leaked into the ground through a broken side sewer. In 1997 PCE was detected in the downtown wells again. This time the source was determined to be a wash water basin at the Stoneway Concrete site adjacent to Cedar River Park. Well 8 was continuously pumped to waste to clear up the contamination. Recent VOC tests of the downtown wells do not show any PCE contamination. Positive tests for VOCs occurred at PW-SA in 1994. The positive sample in PW-5A ) was determined to be from a poorly cured coating on the well casing. The City cleaned and purged the well and sandblasted the coating. The City flushes this well for approximately 20 minutes each time it is used prior to connecting to the system. Since this operational modification was implemented, no VOCs have been detected. The state has a susceptibility assessment prograin which enables water systems to bypass the required quarte~ly sampling for VOCs the first year. Reduced monitoring is allowed if a susceptibility assessment of the water system indicates a low or moderate vulnerability to contamination. The City submitted a susceptibility assessment to the DOH. Table 6-7 lists the ratings given to each well by the DOH and the required testing. Although the susceptibility of Well 5A to contamination is rated low, quarterly testing for VOCs continues to be required because of the earlier positive test. Ongoing quarterly testing is performed at the downtown wells and the Springs because of the medium to high vulnerability of these sources to contamination. The state has an area waiver program for SOC monitoring. Under this program, the City can reduce its SOC testing requirements (and costs) at its wells by participating in the funding of the area waiver program. Several City wells have received waivers to testing 7-18 R. W. Beck Renton_Ch7 Water Resouces.doc 10/7/04 WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY for SOCs (PW-SA, PW-ll, PW-12, and PW-17). Renton is participating in the State Area Waiver Program for sources that did not receive a SOC waiver. Consequently, SOC testing at these wells has been reduced; the testing program for these sources is described in the City's Drinking Water Quality Monitoring Program, Appendix L. 7.8 Wellhead Protection Program The 1986 amendments to the federal Safe Drinking Water Act mandated that every state develop a wellhead protection program to protect ground waters that serve as drinking water sources for public water supplies. In 1994 DOH adopted Washington Administrative Code 246-290, which directed Group A public water systems using wells or springs to implement wellhead protection measures. The City of Renton prepared its Wellhead Protection Plan, which was approved by DOH in December 1999. An updated Wellhead Protection Plan is included in this Water System Plan as Appendix Q. DOH stipulates that local wellhead protection programs shall, at a minimum, include the following elements: • A completed susceptibility assessment • A delineated wellhead protection area for each well, wellfield, or spring • An inventory of contamination sources located in the wellhead protection area that have the potential to contaminate wells or springs • Documentation that delineation and inventory findings are distributed to property owners and regulatory agencies • Contingency plans for providing alternate sources of drinking water in the event that contamination does occur • Coordination with local emergency responders for appropriate spill response measures. Compliance with Wellhead Protection Program requirements is part of a broader City effort referred to as the "Aquifer Protection Program." The Aquifer Protection Program was established in 1988 when the Renton City Council designated Aquifer Protection Areas. The City continues to refer to its program as the "Aquifer Protection Program" rather than "Wellhead Protection Program" since elected officials and citizens are familiar with this term after many years of public education. It should also be noted that the Aquifer Protection Program substitutes the tenns "I-year Capture Zone," "S-year Capture Zone," and "10-year Capture Zone," as appropriate, for the tenn "Wellhead Protection Area." The City of Renton obtains most of its drinking water supply from shallow aquifers and a spring that are susceptible to contamination. The aquifer has received "sole source" designation from the EPA. As part of its Aquifer Protection Program, the City has enacted aquifer protection regulations to protect the aquifers used as potable water supply sources from contamination by hazardous materials. The regulations include restrictions on hazardous material quantities, storage, and handling; land use Renton_Ch7 Water Resouces.doc 1017/04 R. W. Beck 7-19 Chapter 7 restrictions; facility operating standards; construction activity standards; fill quality standards; and other measures intended to prevent contamination. Other components of the Aquifer Protection Program include public education, aquifer water quality and level monitoring, coordination with emergency responders, and coordination with surrounding land use authorities on groundwater protection issues. Please refer to Appendix Q for further details. 7.9 System Reliability Renton continues to meet its responsibility to its customers and as a water purveyor by addressing the reliability of the water system through the quality and condition of its facilities described earlier in'this chapter; through system redundancy; and through the development and implementation of its Vulnerability Assessment and its Water Shortage Response Plan. 7.9.1 Reliability Efforts The City continues to provide reliable water service to its existing customers and plan for lorig-term reliability of its system for its sources and its distribution network. The City's primary supply is from its downtown wells, which provide water from the Cedar Valley Aquifer. There is an emergency well (EW-3) that can be used in the event that the main wells are unavailable. In addition to the Cedar Valley Aquifer, the City can supply its system from two different sources within its service area, the Maplewood Aquifer and Springbrook Springs. In addition to its own sources of supply, the City also has nine existing interties with . three neighboring water utilities (plus two 10-inch supply lines to the Renton Boeing Plant from Seattle). The ~ity is pursuing an additional intertie with Skyway and plans to consider other interties in the future. The City is also either actively participating in or plans to study other options for reducing demands and/or providing additional supply options. These options include the City'S ongoing Conservation Plan, a future aquifer recharge study, and the possibility of future opportunities for the use of reclaimed water. 7.9.2 Water Shortage Response Planning The City developed a Water Shortage Response Plan in 1989 to meet its responsibility for planning for emergencies or other short-or long-term shortages that may occur. The City plans to update its Water Shortage Response Plan within the next six years. 7.10 Long Range Water Supply Planning The City has been decisive and progressive in its water supply planning. As discussed elsewhere in this chapter, the City has pursued and secured independent sources of supply as well as supplemental sources~ The City has pursued its independ~nt 7-20 R. W. Beck Renton_Ch7 Water'Resouces.doc 10/7/04 WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY acquisition of water sources in order to maintain control over this utility, which is vital to the public health and economic well being of its customers. An important consideration has also been concern with the cost of water supply and the desire to keep water rates low and competitive with neighboring systems and with the region as a whole. The City's annual water rights are sufficient to meet future average day demands during most scenarios. If more intense redevelopment occurs in the Boeing Area (as defined by Alternative No.4) or there is other development that exceeds what the City'S Economic Development, Neighborhoods and Strategic Planning Division is currently envisioning (as presented in Chapter 4), then the City would likely need to pursue alternatives for its long-term water needs (20-year or longer planning period). The City will pursue several different approaches to supplement its peak demand requirements (20-year and longer planning period). This includes additional storage, interties and supply agreements with other water purveyors for supplemental peak supply as needed, and the possible use of other technologies such as reclaimed water and aquifer recharge. The City actively participates with other water systems on regional planning, supply, and operating issues. For example, Renton is a member of the East King County Regional Water Association and the Water Conservation Coalition of Puget Sound. Another example is the City's participation in the recent PugetSound Regional Water Supply Outlook Study, which assessed the supply sources of the Central Puget Sound Region, explored ways that systems can support each other, and evaluated regional supply options to meet future needs. 7.10.1 Regional Water Supply Issues The City of Renton 'draws its supply, primarily from aquifers in the lower reaches of the Cedar River Watershed. The Cedar Valley aquifer in particular is relatively shallow. However, there is no evidence from studies conducted to date that the City's water use has an impact on flows in the Cedar River. The Muckleshoot Indian Tribe has an interest in the Cedar River and its fishery resources. The Tribe is concerned with low stream flows that can affect water quality. Renton is monitoring the River as a condition of its water rights and will continue to cooperate with the other parties in the management of this resource. SPU is the regional water purveyor for much of King County. It serves most of the cities and water districts in the vicinity of Renton. Renton itself has agreements with Seattle for supply of the Boeing Plant property and emergency intertie agreements, as already discussed. The SPU system is currently near its capacity; SPU has limited its contract deliveries to the available supply, and will charge higher rates for additional amounts that would require it to develop new sources. In recent years, SPU has implemented a successful conservation program that has delayed the need for new sources. The water utilities in the Puget Sound Region have individually and collectively addressed future sources of supply to meet their future needs. SPU has constructed a Renton_Ch7 Water Resouces.doc 10/7/04 R. W. Beck 7-21 Chapter 7 120-mgd water filtration plant on its Tolt River source. This improvement in water quality meets current water quality standards and allows SPU to make better use of the Tolt source to meet existing and future demands. The City of Tacoma is the regional system to the south, serving much of Pierce County and some areas in south King County. Tacoma is currently c9mpleting construction of its second supply project. This involves a second supply pipeline from its Green River source which adds another 60 cfs of supply to the Tacoma system. The U.S. Army Corps of Engineers, in cooperation with Tacoma, is making improvements to Howard Hanson Dam upstream from the city's water supply intake that will help to ensure this supply during low-flow periods. The Tacoma Second Supply Project serves a number of water districts in south King County, some of which are also supplied by SPU. Until recently, the Tacoma project included an intertie with the SPU system at Lake Youngs to improve reliability and because Tacoma will have surplus water supply for a number of years. The Seattle-Tacoma Intertie could have benefited Renton through its interties with the Seattle transmission system. The Growth Management Act requires cities in Washington State to prepare.20-year plans for their future development, including the provision of adequate water supply to support this growth. This has raised concerns with many water utilities because they are often not consulted when the land use planning and economic development decisions are made for GMA and many water systems are reaching the capacity of their sources and don't have the necessary future capacity to meet GMA projections. In addition, the process of obtaining water rights in Washington State has become extremely difficult and time-consuming because of concerns over instream flows and . the suspected influence of groundwater withdrawals on stream flows. The current situation has prompted water systems in the Central Puget Sound area to pursue new source development as a top priority. The Cascade Water Alliance was created several years ago with participation of many of the water systems in King County to pursue new regional supplies as an alternative, or in conjunction with SPU and Tacoma. Many of the same systems have also participated in the Puget Sound Outlook Study, which included water utilities in King, Pierce, and Snohomish Counties. As a result of planning by individual water utilities and the efforts of the consortiums mentioned in the previous paragraphs, a number of regional projects have been proposed. The following list describes some of these regional solutions: • The City of Seattle is considering both raising the level of its Chester Morse reservoir on the Cedar River and installing a permanent pumping installation to be able to use "dead" storage in the reservoir that is too low to flow by gravity. • The Cascade Water Alliance andlor the· City of Tacoma are considering purchasing water rights currently held by Puget Sound Energy for hydroelectric generation on the White River, including storage in Lake Tapps. 7-22 R. W. Beck Renton_ Ch7 Water Resouces.doc 1017104 WATER SUPPLY, WATER RIGHTS, AND WATER QUALITY • The East King County Regional Water Association is considering constructing a pipeline that would deliver water from Tacoma's Green River Supply to water purveyors in King County east of Lake Washington. • The City of Everett is pursuing the acquisition of a 30-mgd water right formerly used by Weyerhauser for its now abandoned plant in Everett. Various schemes have been proposed for delivering this water to utilities in King County. At the present time, none of the new regional alternatives are being actively developed. The water supply situation is continually changing with alternatives proposed, studied, and sometimes put on the shelf. A number of other alternatives have been considered including the North Fork Tolt River, Snoqualmie Aquifer under the Middle Fork of the Snoqualmie River, the North Fork Snoqualmie River, direct withdrawal from Lake Washington, and even sources as far away as the Skagit River. At the present time, none of these appear to be in serious contention as the next source due to water rights or environmental, cost, or institutional issues. As a participant in forums proposing new supplies, the City of Renton is keeping itself involved and informed of new developments. It will make decisions and act as appropriate to preserve its current supply and/or to participate with other utilities in new or alternative source development. 7.11 Recommended Water Supply Improvements Recommended improvement projects for water supply can be grouped into the main areas of interties, water quality, and reliability. Specific projects associated with the supply projects described in general here, are included in Chapter 10. The City is currently pursuing a new intertie with Skyway. It is recommended that the City maintain and/or renew its existing intertie agreements with adjacent purveyors as well as pursuing additional new interties in order to improve reliability and to help supplement future peak demands. This would include renewing its agreement with Seattle. The completion of the Maplewood wells treatment facilities is scheduled for completion in 2005. The City also plans to proceed with treatment improvements to- We1l5A. System reliability can be improved through several approaches that include security and system redundancy. The City has identified several security improvements that are included in its six-year CIP. As redevelopment occurs the City can improve system reliability by considering options for new pressure-reducing valves PRVs and other control valves that provide additional supply to zones. Additional possible projects for improving supply reliability are aquifer recharge and the use of reclaimed water. The City has not investigated artificial aquifer recharge, but plans to proceed with a study within the next 20 years to look at the feasibility of such a project. The use of reclaimed water has been attempted by the City with limited success to date. This may, however, become a more feasible option in the future as demands continue to increase, particularly during peak periods and it Renton_Ch7 Water Resouces.doc 1017104 R. W. Beck 7-23 Chapter 7 becomes more cost effective. Therefore, it is recommended that the City continue to periodically evaluate the opportunities for the use of reclaimed water within its service area. Feasible alternatives for using reclaimed water are not anticipated within the next six years. 7-24 R. W. Beck Renton_Ch7 Water Resouces.doc 1017104 Chapter 8 WATER SYSTEM ANALYSIS The City's water system was designed and constructed to provide long term, reliable service. The system is relatively complex, consisting of several pressure zones to serve the range of elevations within the service area. The Renton service area is bordered on all sides by other water purveyors. While the City's water system does not serve some areas within its city limits and urban growth area (UGA), it is unlikely that Renton's service area will change much in the future due to topography and growth patterns. However, the City anticipates a significant amount of new development and/or redevelopment within its existing water service area and needs to maintain its ability to deliver peak water demands and fire flow as the City grows. The trend is toward higher occupancy residential development and commercial! industrial uses, with increased water requirements. This chapter describes and evaluates the condition and capacity of the City's distribution, transmission, and storage facilities. Where deficiencies were identified, improvements are recommended to address those deficiencies. Because improvements being planned and built today are expected to last 50 years or longer, system storage capacity was evaluated for 2005, 2011, and buildout (saturation) demands. The system transmission and distribution capacity was evaluated for 2005 and buildout demand conditions. Specific improvements are identified and sized to meet level-of-service requirements at buildout demand conditions. 8.1 Storage Evaluation The storage evaluation compared available storage within Renton's water service area with the' required storage volume, following Washington State Department of Health (DOH) guidelines. The required storage considers system operation, water demands, and fire flow requirements. The analysis was conducted first based on the existing water facilities and next considering potential new or improved facilities planned by the City. Available storage is based on the usable volume of water in each of the City's existing storage facilities. A comparison of available and required storage was prepared for 2005,2011, and buildout conditions. This section also addresses the storage requirements that would apply if the Boeing Plant Area were to be redeveloped at a much higher density than its current use. Alternative No.4 of the Boeing redevelopment alternatives, as described in Chapter 4, was used because it is the higher density option. Renton_CbS System Analysis.doc 10/7/04 Chapter 8 8.1.1 Required Storage Water system storage has four required components: • Operating storage • Equalizing storage • . Fire flow storage • Standby storage In addition, the system may have storage that cannot b~ effectively used for any of these purposes and is commonly referred to as "dead" storage. The following subsections describe these storage components. The subsection titled "Reductions in Required Storage" describes DOH guidelines which allow purveyors to reduce the required storage by taking credit for supply sources that meet certain criteria. Tables 8-1a and 8-1b show the required equalizing and standby storage for each zone and for the entire system. Table 8-1a shows the required storage with the City's existing facilities (including reductions in required storage allowed for existing supply sources). Table 8-1b shows further reductions in the required storage if potential new automatic transfer, onsite emergency power, or new interties were installed. Several zones that are supplied solely through pressure-reducing valves (PRVs) are shown in the tables as being supplied from the zone that is the primary source of supply. For example, the 590 Zone has two storage tanks that supply the 395 Zone through two PRVs, as well as supplying the 590 Zone. Therefore~ the 395 Zone is included together with the 590 Zone in the tables showing the required storage. A comparison of the required storage shown in Tables 8-1a and 8-1b with the storage available in the Renton system is presented later in this chapter in Tables 8-3a and 8- 3b. These tables show operating, equalizing, standby, and fire flow storage f~r each zone. Operating Storage Operating storage is the volume of water that lies between the low and high elevations in water tanks set by City operations staff to control system pumps and flow control valves supplying the tanks. In the winter, Renton's operations staff maintains the tanks at least 70 percent full during normal operations. The operations staff change the tank settings during the summer to keep the tanks at least 80 percent full during normal operations. At a minimum, the operating range is set to prevent pumps from cycling on and off more frequently than every 10 minutes. The required operating storage for each zone is presented later in this chapter in Tables 8-3a arid 8-3b. Equalizing Storage Equalizing storage is the total volume needed to satisfy peak diurnal demands that exceed the capacity of the supply system. Equalizing storage is most often determined by looking at requirements during a 24-hour demand cycle, although a longer cycle 8-2 R. W. Beck Renton_CbS System Analysis.doc 10/7/04 WATER SYSTEM ANALYSIS can be used. A water system is considered to be hydraulically balanced if the supply facilities can replenish the equalizing volume within the demand cycle chosen for analysis purposes. This concept is illustrated in Figure 4-5, which shows the typical variation of citywide system demand over a 24-hour demand cycle. Keeping a system properly balanced allows the storage facilities to be replenished during times of the day when demand is low and allows the withdrawal of water from storage when the demand exceeds the supply capacity. The required equalizing storage for Renton was determined by following the DOH guidelines in the Water System Design Manual, published in 2001. Equalizing storage is calculated as the sum of the peak hour demands within each zone, minus other supply sources (wells, interties, booster pump stations), multiplied by 150 minutes. Tables 8-1 a and 8-1 b show the required equalizing storage for each zone. Later in this chapter, Tables 8-3a and 8-3b compare this required storage with ~he available equalizing storage. Fire Flow Storage Fire flow requirements within the City of Renton are established by the Renton Fire Department. The minimum required fire flow for a specific structure is based on a number of factors, including building floor area, type of building construction, exposure to other structures, type of materials stored within the building, and land use. Storage volume must be provided to supply the design fire flow for a specified minimum time duration, normally 1 hour for each 1,000 gpm of design fire flow. As an example,a design fire flow greater than 1,000 gpm, but less than 2,000 gpm, would require a minimum time duration of 2 hours. The largest required fire flow within each pressure zone and its duration determines the maximum volume of water needed for fire storage in that zone. Zones that are hydraulically connected either through automatic valves or through pump stations with emergency power can share the fire flow storage between both zones. The required fire flow storage for each zone is presented later in this chapter in Tables 8-3a and 8-3b. Standby Storage Standby storage is required to supply reasonable system demands during a system emergency or outage, such as a major pipeline failure, power outage, valve failure, or other system failure. The required standby volume is dependent upon the system demand, the expected duration of a system outage, and the available remaining supply capacity in the system at the time of the emergency. Renton_CbS System Analysis.doc 1017104 R. W. Beck 8-3 Pumping Capacity Facility ~m) 5901395 Zone Required Storage Rolling Hills BPS 7,000 Subtotal 5901395 Zone 4901370RHJ300E Zone Required Storage SEA Intertie (STA #37) 690 Subtotal 490J370RH/300E Zone 3501300W Zone Required Storage SEA Intertie lSTA #33) 890 Subtotal 3501300W Zone 565 Zone Required Storage Highland BPS 3,900 Subtotal 565 Zone 4351320 Zone Required Storage 4951370EJ300WH Zone Required Storage SEA Intertie (STA #38) 700 Subtotal 4951370E/300WH Zone 196 Zone Required Storage Tukwila Intertie (PRV #23) 1,875 Kent Intertie (PRV #25) 1,390 Subtotal 196 Zone Total Required Storage Average Peak Day Hour Table 8·1a Required Equalizin!~ and Standby Storage (Existing System Conditions) 2005 2011 Average Peak Day Hour Demand Demand Equalizing Standby Demand Demand Equalizing Standby 1mB) JmJll (mB)1 . (mg)z (mg) {mg) (mo)1 (mgl2 0.46 0.08 0.21 0.91 0.53 0.10 0.24 1.05 0.01 0.03 0.01 0.03 0.45 0.08 0.21 0.90 0.63 0.12 0.29 1.25 0.10 0.90 0.18 1.25 0.62 0.11 0.29 1.24 0.67. 0.12 0.31 1.34 0.25 1.24 0.27 1.34 1.74 0.32 0.80 3.49 1.79 0.33 0.82 3.58 0.22 0.03 0.24 0.12 1.52 0.28 0.70 3.04 1.74 0.32 0.80 3.48 . 0.47 0.09 0.21 0.93 0.62 0.11 0.28 1.23 0.17 0.93 0.19 1.23 2.74 0.50 1.26 5.48 3.03 0.56 1.39 6.07 0.77 3.48 0.90 4.07 2.21 9.66 2.59 11.52 WATER SYSTEM ANALYSIS Buildout Average Peak Day Hour Demand Demand Equalizing Standby (mg) (mg) (mg)1 (mg)2 0.73 0.13 0.34 1.46 0.01 0.03 1.38 0.25 0.63 2.76 0.53 2.76 0.83 0.15 0.38 1.66 0.30 1.66 2.00 0.37 0.92 3.99 0.33 0.53 2.66 0.49 1.22 5.32 1.09 0.20 0.50 2.18 0.39 2.18 4.89 0.90 2.24 9.77 1.75 7.77 4.54 20.25 1. Equalizing storage foliows guidelines In the DOH Water System Design Manual, ({PHD-OsJ"150mln). PHD Is the ~eal< hour demands within each zone and O,ls the source of supply capacity within each zone. 2. Standby storage Is determined using DOH guidelines In the Water System DeSign Manual, {{2'ADDj-1440'{Os-Q.J, ADD Is the average day demands for each zone. as Is the source of supply capactty by lone. and 0.. Is the largest source of suppty capacity within each lone. ReDtop ""8 System Analysis.doc 10/7/04 R. W. Beck 8-4 WATER SYSTEM A~ Table 8·1b Required Equalizing and Standby Storage (Including Credit for Future Source of Supply Capacity at Existing Facilities) 2005 2011 Bulldout Pumping Capacity Average Day Peak Hour Equalizing Standby Average Day Peak Hour Equalizing Standby Average Day Peak Hour Equalizing Standby Facllih' (gpml Demand (mill Demand (mill (mg)' (mil)' Demand (rna) Demand (mgl (mg)' (mg)' Demand (mg) Demand (mg) (mg)' (mg)' 590/395 Zone Required Storage 0.46 0.08 0.21 0.91 0.53 0.10 0.24 1.05 0.73 0.13 0.34 1.46 Rolling Hills BPS 7,000 MBJ1Iewood BPS 1590 Zone)' 3,000 Subtotal 590/395 Zone 0.01 0.03 0.01 0.03 0.01 0.03 490/370RHl300E Zone Required 8to"'ge 0.45 0.08 0.21 0.90 0.63 0.12 0.29 1.25 1.38 0.25 0.63 2.76 SEA Intertie (STA #37) 690 N. Talbot Hill BPS (490 Zone) 4,240 Subtotal 490/370RH/300E Zone 0.03 0,14 0.05 0.21 0.11 0.49 350/300W Zone Required Siorage 0.62 0.11 0.29 1.24 0.67 0.12 0.31 1.34 0.83 0.15 0.38 1.66 SEA Intertie (STA #33) 890 N. Talbot Hill BPS (350 Zone) 500 Subtotal 350/300W Zone 0.18 1.24 0.19 1.34 0.23 1.66 565 Zone Required Storage 1.74 0.32 0.80 3.49 1.79 0.33 0.82 3.58 2.00 0.37 0.92 3.99 Highland BPS 3,900 Subtotal 565 Zone 0.22 0.03 0.24 0.12 0.33 0.53 435/320 Zone Required Storage 1.52 0.28 0.70 304 1.74 0.32 0.80 3.48 2.66 0.49 1.22 5.32 MI. Olivet BPS' 4,350 Subtotal 4351320 Zone 0,26 1.13 0.32 1.40 0.61 2.64 495/370EJ300WH Zone Required Storage 0.47 0.09 0.21 0.93 0.62 0.11 0.28 1.23 1.09 0.20 0.50 2.18 SEA Intertie (STA #38) 700 Subtotal 49S/370EJ300WH Zone 0.05 0.93 0.05 1.23 0.24 2.18 196 Zone Required Siorage 2.74 0.50 1.26 5.48 3.03 0.56 1.39 6.07 4.89 0.90 2.24 9.77 Tukwila Intertie (PRV #23) 1,875 Kent Intertie (PRV #25) 1,390 Wells I, 2, 3' 6,600 We1l8' 3,500 Subtotal 196 Zone 0.00 0.00 0.00 0.00 0.24 0.00 Total Required Storage ------------0.74 3.51 0.85 4.33 . ___ --.-!1_6 __ 7.54 1. Equalizing storage foilows guidelines in the DOH Water System Design Manual, «PHD-Os)'150min). PHD is the peak hour demands within each zone and a. is the source of supply capacity within each zone. 2. Standby storage is determined using DOH guidelines in the Water System Design Manual, «2'ADD)-1440'(as-ad· ADD is the average day demands for each zone, as is the source of supply capacity by zone, and a.. is the largest source of supply capacity within each lone. 3. A Cledit is given to the 590 Zone for pumping capacity from Maplewood. The booster pump capacity for standby storage assumes the largest pump is out of service, which would reduce the total booster pump capacity of 3,950 gpm to 1,550 gpm. While the 565 Zone can be supplied from Maplewood during emergency conditions, for this storage analysis all of the available now during standby conditions has been Cledited to the 590 Zone. Equalizing storage does not assume the largest pump out of service for each zone; however, it is limited by the treatment capacity. The current treabnent capacity is 3,000 gpm and therefore has been used as the maximum credit available for the 590 Zone. The City may add treabnent capacity in the future. If the Cily were to consider providing emergency power for this facility in the future, it would need to evaluate the current pumping, treabnenl and well capacity at that time. The required storage would be reduced if automatic emergency power were installed at Maplewood Booster Pumps I, 2, 4, and 5; the treabnent building, and the wells. 4. A Cledit is given for equalizing and standby storage in the 435 Zone for pumping capacity from Mt. Olivet Reservoir. The credit for equalizing storage is 4,350 gpm. The largest pump out of service is assumed for standby storage, reducing the capacity by 1,800 gpm to 2,550 gpm. 5. The required storage in the 196 Zone would be reduced if automatic emergency power were installed at Wells 1, 2, 3, and 8. The credit for standby storage assumes the largest of these four wells, Well 8, out of service. _YSIS Renton_eh8 System Analysis.doc 1017104 R, W, Beck 8-5 Chapter 8 Standby volume is the most difficult of the four storage components to establish, because it involves subjective evaluation of system emergency scenarios that, by their nature, are difficult to predict and to estimate. DOH has established guidelines for determining required standby storage, which allow the standby storage to be set at twice the average day demand. Required standby storage for each zone is shown on Tables 8-1a and 8-1b. Later in this chapter, Tables 8-3a and 8-3b show a comparison of this required storage with the available storage ... DOH allows utilities to combine or "nest" fire flow and standby storage. The City is using "nested" storage in the analysis presented here as it is defined by DOH guidelines in the 2001 Water System Design Manual. Based on this criteria, the larger of the required fire flow or the required standby storage within each zone is used to' determine the required nested storage. Dead Storage Dead storage is any volume of water that: (1) cannot be efficiently used because it is physically too low to be withdrawn from the tank (i.e., located below the outlet pipe), (2) results in poor water quality, (3) causes hydraulic problems at pump inlets such as pump cavitation or vortexing, or (4) is below the level that provides acceptable minimum pressures in the system. Dead storage is subtracted from the total tank volume to determine the available storage. Reductions in Required Storage The DOH guidelines allow the City to reduce the required storage by taking into account other supply sources that meet certain criteria. These supply sources include interties, wells, or pump stations. The criteria that each must meet are described below and are explained in greater detail in the 2001 Water System Design Manual. In all cases, the source of supply must provide water that meets the City's service criteria. When considering standby storage, DOH requirements specify that the largest capacity unit be considered, out of service to give a conservative estimate of support from other sources. This could be a single pump at a pump station, an intertie, or a well. • Interties. Required storage volumes can be reduced by the capacity of interties if: (1) the intertie connections are supplied through an automatic valve, such as a PRY, and (2) an agreement is in place between Renton and the supplying utility that specifies that the supply is for the purposes of standby andlor fire flow ( emergency purposes). The City has five interties with Seattle, one intertie with Tukwila; and one intertie with Kent that qualify as sources of supply for meeting equalizing, standby, andl or fire flow storage requirements. • Wells. The City has several wells that may be considered sOllrces of supply when evaluating storage requirements. The capacity of the City's wells may be used to reduce the required operating and equalizing storage requirements. In order for 8-6 R. W. Beck Renton_CbS System Analysis.doc 1017104 WATER SYSTEM ANALYSIS the wells to be credited as standby or fire flow storage, onsite emergency power must be installed with automatic transfer. • Booster Pump Stations Supplying from Lower Zones. The criteria used to determine if a pump station may be considered in the storage analysis vary depending on the component of storage being considered. In order to receive credit for storage, the volume of water being supplied must be surplus storage in the zone from which it is pumped (i.e., operating and equalizing volumes must be fully met within each pressure zone as well as throughout the system). Criteria for standby and fire flow storage also require that pumps have onsite emergency power with automatic transfer. 8.1.2 Available Storage The available storage is the usable volume of water in Renton's eXlstmg storage facilities. Figure 8-1 and Table 8-2 show the available storage by source for each zone. The City's nine existing reservoirs are described in Chapter 3. The storage is shown for the four required storage components: operating, equalizing, standby, and fire flow storage. In Figure 8-1, the minimum and maximum levels of each storage band are based on the highest elevation (customer) served within each pressure zone. The available operating and equalizing storage is defined as the volume between the maximum water level of each tank and the water level that provides a minimum pressure of 30 psi to the highest customer within that zone. The volume available for fire flow and standby storage includes water between the minimum level that provides 30 psi down to the water level in a tank that provides 20 psi to the highest customer in each zone. Any volume of water that would supply customers at a service pressure less than 20 psi is considered dead storage. Figure 8-1 shows the water levels for these pressure criteria in each storage tank. In some cases, the elevation for these minimum pressure criteria is below the bottom of the tank, so there is no dead storage. Table 8-2 shows that approximately 7.2 mg of storage is available for operating and equalizing requirements in the Renton system, and approximately 7.5 mg is available for standby and fire flow requirements. The Mt. Olivet and West Hill tanks have storage volume that cannot be used within the primary service zones; however, under certain conditions the dead or unusable volumes in those zones can be used in other zones. The 2.3 mg of dead storage in the Mt. Olivet tank can be pumped into the 435 Zone for standby storage. The storage in the West Hill tank that is shown as unusable in the 495 Zone can be delivered to the West Hill 300 Zone or by the Skyway Water "- and Wastewater District through pressure-reducing valves. ReDIOD_Ch8 System Analysis.doc 1017104 R. W. Beck 8-7 Chapter 8 Facility Zone Rolling Hills 590 Highlands 5~5 West Hill 495 Rolling Hills 490 Highlands (2.0 mg) 435 Highlands (1.5 mg) 435 . Subtotal 435 Zone S Talbot 350 N Talbot 196 Mt. Olivet 196 Subtotal 196 Zone Total Highest Table 8·2 Available Storage Operating Total and Service Elev. Volume Equalizing (ft) (mg) (mg) 473 0.3 0.3 469 0.75 0.67 386 1.4 0.59 398 3.0 2.26 360 2.0 1.00 360 1.5 0.83 3.5 1.83 239 1.5 1.5 128 5.0 0.6 128 3.0 0 8.0 0.62 18.45 7.19 Standby Dead Storage or and Fire Standby for Flow Other Zones (mg) (mg) 0 0.08 0.31 0.5 0.72 1.0 0.67 1.67 0 4.40 0.72 2.28 5.14 2.28 7.47 8.1.3 Comparison of Available and Required Storage Tables 8-3a and 8-3b provide a comparison of the available and required storage for each pressure zone. The required storage shown in Table 8-3a corresponds to Table 8-1a. Table 8-3a shows the storage surplus and deficit by zone for 2005, ,2011, and buildout demands with the City's existing facilities. Table 8-3b corresponds to Table 8-1 b; the required storage is reduced to take into account supply sources that may be upgraded by adding emergency power with automatic transfer features in the future. The surplus or deficit in storage volumes shown in Tables 8,,3a and 8-3b take into account the transfer of water between zones that are hydraulically connected and meet the necessary criteria. Available fire flow is shared between zones that are hydraulically connected and meet the criteria for onsite emergency power. For example, the 490 Zone has available fire flow storage of 0.72 mg. There is no available fire flow storage within the 590 or 350 Zones. However, the fire flow storage in the 490 Zone can be used to serve the 350 and 590 Zones, so 0.72 mg of fire flow storage is shown in the 350 and 590 Zones as well. The 435 and 565 Zones can also share fire flow storage. The 565 Zone has 0.08 mg and the 435 Zone has 0.54 mg of available for fire flow, resulting in a combined available fire flow storage of 0.62 mg for both zones. Standby and equalizing storage must be fully satisfied within each zone. If standby or equalizing storage is supplied from another zone, it must be because there is surplus storage in the other zone. For example, since all of the available fire flow storage for the 350 and 590 Zones is supplied from the 490 Zone, then the available nested fire 8-10 R. W. Beck Rentoo_Ch8 System Analysis.doc 1017104 I i I ! I I 594' OPERATING 1 ______ 10.1 MG Rolling Hills 590 (0.30 MG) 566' EQUALIZING, 0.2MG 542' (30 psi) 519' (20 psi) Highest Customer 473' 590 ZONE 569' Highlands 565 (0.75 MG) 534' OPERATING 0.2MG :EQUAUZING 0.5MG I I'. I, I' !' ,t • 539' (30 psi) FIRE FLOW , .' , West Hill and .. STANDBY (1.40 MG) 0.1 MG 499' 516' (20 psi) ! OPERATING.'. 0.3MG EQUALIZING 0.3MG 455' (30 psi) Highest , Customer 469' , FIRE FLOW and STANDBY 0.3MG 396' 432' (20osil 0.49 MG (can be used to supply 270 Zone or Skyway) Highest Customer 386' 565 ZONE 495 ZONE 494' Rolling Hills 490 (3.00 MG) 458' OPERATING 0.6MG EQUALIZING 1.7MG 467' {30 psi} FIRE FLOW STANDBY O.7MG 444' (20 psi) Highest Customer 398' and 490 ZONE -----_ .. _----. Highlands Highlands (2MG) (1.5 MG) 440'· I = I op~nNG 0.7 MG bd EQUALIZING 1.5 MG --,-FIRE FLOW and STANDBY 1.3MG 406' (20 psi} Highest Customer 360' 435 ZONE 429' (30 psi) 354' South Talbot (1.50MG) 32T OPERATING 0.3MG EQUALIZING 1.2MG 308' (30 psi) 285' (20 psi) Highest Customer 239' 350 ZONE --j 'I I I i I [. I I I I I OPERATING 0.6 MG I' i FIRE FLOW and STANDBY 4:4MG .. , ....... , ... _-, ............ "" ---. --. ''''j Figure 8-1 Available Storage Volumes I 200' 198' (30 psi) North Talbot Hill 184' Reservoir Mount Olivet ARE FLOW and STANDBY 0.7MG (5.00 MG) 173' 196 ZONE Reservoir (3.00 MG) 147' 175' (20 psi) 2.3 MG (can be pumped to the 435 zone) Highest Customer 128' WATER SYSTEM ANALYSIS flow and standby storage for these two zones can be met by nested storage in the 490 Zone, only after the required standby storage has been accounted for in the 490 Zone. For this reason the available nested fire flow and standby storage for the 350 and 590 Zones will decrease in the future as standby storage requirements increase in the 490 Zone. Subtotals of the surplus or deficit storage volumes are shown for zones that can be considered for shared fire flow and standby storage. The necessary criteria for shared storage between zones are described in the previous section. The zones with subtotals include the 350, 490, and 590 Zones; and the 435 and 565 Zones. Available and Required Storage with Existing Facilities Table 8-3a shows that at 2005 and 2011 demand conditions, all of the zones have a deficit in total storage except the 196 and 490 Zones. At buildout, there is a projected deficit in all zones. The subtotals for zones that share storage shows that for the 350, 490, and 590 Zones there is an existing storage deficit of 0.35 mg and a projected deficit at buildout of 2.61 mg. The subtotal for the 435 and 565 Zones shows a combined deficit of 1.77 mg in 2005 and a projected deficit of 4.68 mg by buildout. The new 565 Zone storage that will be constructed within the next two years will provide the needed storage in the 565 Zone. The other zones will need either new storage facilities, emergency power for existing supplies, or new supply sources that can be credited to reduce the required storage within each zone. Available and Required Storage with Credit for Additional Supply Sources Table 8-3b gives credit for supply sources that do not currently meet the necessary criteria for reducing standby and fire flow storage, but may be modified in the future to meet them. The supply sources considered in this future scenario include the upgrade of wells and pump stations to add onsite emergency power with automatic transfer. Table 8-3b presents the surplus or deficit in storage that would result if emergency power were installed to serve Wells 1, 2, 3, and 8, as well as the Maplewood pumps that would supply the 590 Zone, Mt. Olivet Booster Pump Station, and North Talbot Booster Pump Station. The City is also considering an intertie with Skyway. As mentioned previously, the City is considering the cost effectiveness of different alternatives that could reduce required storage based on upgrading supply sources, and it will implement those that prove most effective as part of its Capital Improvement Program (CIP). Table 8-3b shows that in all of the zones, the addition of the emergency power features to sources of supply would decrease the required storage volume. The 590 and 565 Zones individually show a deficit in 2005 and 2011. However, the subtotal for the 590, 490, and 350 Zones show a surplus in 2005 and 2011 with a projected deficit of 0.06 mg by buildout. Considering the 435 and 565 Zones together there would be a surplus of storage for 2005, 2011, and buildout demand conditions. In addition to the slight deficit in storage for the combined 350, 490, and 590 Zones at buildout, the only other zone with a deficit is the 495 Zone. The potential emergency power improvements included in the storage analysis shown in Table 8-3b do not significantly benefit the 495 Zone. There is a deficit of 0.36 mg in 2005 increasing to a deficit of 1.8 mg by buildout. Renton_ChS System Analysis.doc 1017104 R. W. Beck 8-11 2005 Fire Nested FF & Operating Equalizing Flow Standby Standby Facility (mg)l (mg)2 (mg)3 (mg)4 (mg)5 590/395 Zone Available Storage 0.06 0.24 0.72 0.00 0.00 R~quired Storage 0.06 0.01 1.20 0.03 1.20 Surplus/Deficit 0.00 0.23 -0.48 -0.03 -1.20 490/370/300 E Zone Available Storage 0.60 1.66 0.72 0.02 0.74 Required Storage 0.60 0.10 1.20 0.90 1.20 Surplus/Deficit 0.00 1.56 -0.48 -0.87 -0.46 350/300 W Zone Available Storage 0.30 1.20 0.72 0.00 0.00 Required Storage 0.30 0.25 1.44 1.24 1.44 Surplus/Deficit 0.00 0.95 -0.72 -1.24 -1.44 Subtotal 350/490/590 565 Zone Available Storage6 0.15 0.52 0.62 0.00 0.00 Required Storage 0.15 0.22 1.20 0.03 1.20 Surplus/Deficit 0.00 0.30 -0.58 -0.03 -1.20 435/320 Zone Available Storage 0.71 1.12 0.62 1.13 1.75 R!!quired Storage 0.71 0.70 1.32 3.04 3.04 Surplus/Deficit 0.00 0.42 -0.70 -1.91 -1.30 Subtotal 435/565 495/370/300WH Zone Available Storage 0.28 0.31 0.18 0.13 0.31 R!!quired Storage 0.28 0.17 0.54 0.93 0.93 SurpluslDeficit 0.00 0.14 -0.36 -0.80 -0.62 196 Zone Available Storage 0.62 0.00 1.44 3.66 5.10 Required Storage 0.62 0.77 1.44 3.48 3.48 SurpluslDeficit 0.00 -0.77 0.00 0.18 ---1.62 8-3a Comparison of Required and Available Storage (Existing System Conditions) 2011 Fire Nested FF & Total Operating Equalizing Flow Standby ~tandby (mg) (mg)l (mg)2 (mg)3 (mg)4 (mg)5 0.30 0.06 0.24 0.72 0.00 0.00 1.27 0.06 0.01 1.20 0.03 1.20 -0.97 0.00 0.23 -0.48 -0.03 -1.20 3.01 0.60 1.66 0.72 0.02 0.74 1.90 0.60 0.18 1.20 1.25 1.25 1.10 0.00 1.48 -0.48 -1.23 -0.51 1.50 0.30 1.20 0.72 0.00 0.00 1.99 0.30 0.27 1.44 1.34 1.44 -0.49 0.00 0.93 -0.72 -1.34 -1.44 -0.35 0.67 0.15 0.52 0.62 0.00 0.00 1.57 0.15 0.24 1.20 0.12 1.20 -0.90 0.00 0.28 -0.58 -0.12 -1.20 3.58 0.71 1.12 0.62 1.13 1.75 4.45 0.71 0.80 1.32 3.48 3.48 -0.87 0.00 0.32 -0.70 -2.35 -1.73 -1.77 0.90 0.28 0.31 0.18 0.13 0.31 1.38 0.28 0.19 0.54 1.23 1.23 -0.48 0.00 0.12 -0.36 -1.10 -0.92 5.72 0.62 0.00 1.44 3.66 5.10 4.87 0.62 0.90 1.44 4.07 4.07 0.85 0.00 -0.90 0.00 -0.41 1.03 Buildout Fire Nested FF Total Operating Equalizing Flow Standby & Standby Total (mg) (mg)l (mg)2 (mg)3 (mg)4 (mg)5 (mg) 0.30 0.06 0.24 0.72 0.00 0.00 0.30 1.27 0.06 0.D1 1.20 0.03 1.20 1.27 -0.97 0.00 0.23 -0.48 -0.03 -1.20 -0.97 3.01 0.60 1.66 0.72 0.02 0.74 3.01 2.04 0.60 0.53 1.20 2.76 2.76 3.89 0.97 0.00 1.13 -0.48 -2.73 -2.01 -0.88 1.50 0.30 1.20 0.72 0.00 0.00 1.50 2.01 0.30 0.30 1.44 1.66 1.66 2.27 -0.51 0.00 0.90 -0.72 -1.66 -1.66 -0.77 -0.50 -2.61 0.67 0.15 0.52 0.62 .0.00 0.00 0.67 1.59 0.15 0.33 1.20 0.53 1.20 1.68 -0.92 0.00 0.19 -0.58 -0.53 -1.20 -1.01 3.58 0.71 1.12 0.62 1.13 1.75 3.58 4.99 0.71 1.22 1.32 5.32 5.32 7.25 -1.41 0.00 -0.10 -0.70 -4.19 -3.57 -3.67 -2.33 -4.68 0.90 0.28 0.31 0.18 0.13 0.31 0.90 1.70 0.28 0.40 0.54 2.18 2.18 2.86 -0.80 0.00 -0.09 -0.36 -2.05 -1.87 -1.96 5.72 0.62 0.00 1.44 3.66 5.10 5.72 5.59 0.62 1.75 1.44 7.77 7.77 10.15 0.13 0.00 -1.75 0.00 -4.11 -2.67 -4.43 1. Operating storage is based on 20 percent of the tank being utilized as an operating range. The tanks are typically maintained at 70 percent full or greater during the winter and 80 percent or greater of their capacity during the summer. 2. Equalizing storage follows guidelines in the DOH Water System DeSign Manual, «PHD-Qs)*150min). PHD Is the peak hour demands within each zone and Q. is the source of supply capacity within each zon, 3. Required fire flow for each zone is the largest needed fire flow within each zone, as determined by the City of Renton Fire Department. Available fire flow for the 590 and 350 Zones is supplied by the 490 Zone. Available fire flow for the 565 Zone is supplied by the 565 Zone tank and the 435 Zone. 4. Standby storage is determined using DOH guidelines in the Water System DeSign Manual, «2*ADD)-1440*(Qs-QL)' ADD is the average day demands for each zone, Qs is the source of supply capacity by zone, and QL is the largest source of supply capacity within each zone. 5. Nesting the fire flow and standby storage allows the largest of the two required storage components to be used for the total nested storage. 6. Available storage for the 565 Zone does not include the new 565 tank that will be constructed in 2005. 2005 Operating Equalizing Fire Flow Standby Facility (mg)' (mg)2 (mg)' (mg)' 5901395 Zone Available Storage 0.06 0.24 0.72 0.00 Required Storage' 0.06 0.01 1.20 0.03 Surplus/Deficit 0.00 0.23 -0.48 -0.03 490/370/300 E Zone Available Storage 0.60 1.66 0.72 0.02 Required Storage 0.60 0.03 1.20 0.14 SurpluslDeficlt 0.00 1.63 -0.48 -0.12 350/300 W Zone Available Storage 0.30 1.20 0.72 0.00 Required Storage 0.30 0.18 1.44 1.24 Surplus/Deficit 0.00 1.02 -0.72 -1.24 Subtotal 350/490/590 565 Zone Available Storage' 0.15 0.52 0.62 0.00 Required Storage'· 0.15 0.22 1.20 0.03 SurpluS/Deficit 0.00 0.30 ·0.58 -0.03 435/320 Zone Available Storage8 0.71 1.12 0.62 3.41 Required Storage 0.71 0.26 1.32 1.13 SurpluslDeficit 0.00 0.86 -0.70 2.28 Subtotal 4351565 495J370/300WH Zone Available Storage 0.28 0.31 0.18 0.13 Required Siorage9 0.28 0.05 0.54 0.93 Surplus/Deficit 0.00 0.27 -0.36 -0.80 196 Zone Available Storage" 0.62 0.00 1.44 3.66 Required Storage 1.00 0.00 1.44 0.00 Surplus/Deficit -0.38 0.00 0.00 3.66 Table 8·3b Comparison of Required and Available Storage (Including Credit for Future Emergency Power and Interties) 2011 Nested FF & Nested FF & Standby Operating Equalizing Fire Flow Standby Standby (mg)' Total (mg) (mg)' (mg)2 (mg)' (mg)' (mg)' 0.60 0.90 0.06 0.24 0.72 0.00 0.54 1.20 1.27 0.06 0.01 1.20 0.03 1.20 -0.60 -0.37 0.00 0.23 -0.48 -0.03 -0.66 0.74 3.01 0.60 1.66 0.72 0.02 0.74 1.20 1.83 0.60 0.05 1.20 0.21 1.20 -0.46 1.17 0.00 1.62 ·0.48 -0.18 -0.46 0.60 2.10 0.30 1.20 0.72 0.00 0.54 1.44 1.92 0.30 0.19 1.44 1.34 1.44 -0.84 0.19 0.00 1.01 -0.72 ·1.34 -0.90 1.00 0.62 1.29 0.15 0.52 0.62 0.00 0.62 1.20 1.57 0.15 0.24 1.20 0.12 1.20 -0.58 -0.28 0.00 0.28 -0.58 -0.12 -0.58 4.03 5.86 0.71 1.12 0.62 3.41 4.03 1.32 2.29 0.71 0.32 0.54 1.40 1.40 2.71 3.57 0.00 0.80 0.08 2.01 2.63 3.29 0.31 0.90 0.28 0.31 0.18 0.13 0.31 0.93 1.26 0.28 0.05 0.54 1.23 1.23 -0.62 -0.36 0.00 0.26 -0.36 -1.10 '0.92 5.10 5.72 0.62 0.00 1.44 3.66 5.10 1.44 2.44 1.00 0.00 1.44 0.00 1.44 3.66 3.28 -0.38 0.00 0.00 3.66 3.66 Buildout Nested FF & Total Operating Equalizing Fire Flow Standby Standby Total (mg) (mg)' (mg)1 (mg)' (mg)· (mg)' (mg) 0.84 0.06 0.24 0.72 0.00 0.25 0.55 1.27 0.06 0.01 1.20 0.03 1.20 1.27 ·0.43 0.00 0.23 -0.48 -0.03 ·0.95 -0.71 3.01 0.60 1.66 0.72 0.02 0.74 3.01 1.85 0.60 0.11 1.20 0.49 1.20 1.91 1.16 0.00 1.55 -0.48 -0.47 ·0.48 1.09 2.04 0.30 1.20 0.72 0.00 0.25 1.75 1.93 0.30 0.23 1.44 1.66 1.66 . 2.19 0.11 0.00 0.97 ·0.72 -1.66 ·1.41 -0.44 0.84 -0.06 1.29 0.15 0.52 0.62 0.00 0.62 1.29 1.59 0.15 0.33 1.20 0.53 1.20 1.68 ·0.30 0.00 0.19 -0.58 -0.53 -0.58 ·0.39 5.86 0.71 1.12 0.62 3.41 4.03 5.86 2.43 0.71 0.61 0.54 2.64 2.64 4.50 3.43 0.00 0.51 0.08 0.77 1.39 1.90 3.13 1.51 0.90 0.28 0.31 0.18 0.13 0.31 0.90 1.56 0.28 0.24 0.54 2.18 2.18 2.70 -0.65 0.00 0.08 -0.36 -2.05 -1.87 -1.80 5.72 0.62 0.00 1.44 3.66 5.10 5.72 2.44 1.00 0.24 1.44 0.00 1.44 2.68 3.28 -0.38 -0.24 0.00 3.66 3.66 3.04 1. Operating storage is based on 20 percent of the tank being utilized as an operating range. The tanks are typically maintained at 70 percent full or greater during the winter and 80 percent or greater of their capacity during the summer. 2. Equalizing storage follows guidelines in the DOH Water System Design Manual, «PHD-Qs)*150mln). PHD is the peak hour demands within each zone and Q.is the source of suppiy capacity within each zone. 3. Required fire flow for each zone Is the largest needed fire f1QW within each zone, as determined by the City of Renton Fire Department. Available fire fiow for the 590 and 350 Zones Is supplied by the 490 Zone. Available fire fiow for the 565 Zone is supplied by the 565 Zone tank and the 435 Zone. 4. Standby storage is determined using DOH guidelines in the Water System Design Manual, «2*ADD)-1440*(Qs-Qcl. ADD is the average day demands for each zone, Qsis the source of supply capacity by zone, and Q,is the largest source of supply capacity within each zone. 5. Nesting the fire flow and standby storage allows the largest of the two required storage components to be used for the total nested storage. 6. Available storage for the 565 Zone does not include the new 565 tank that will be constructed In 2005. 7. A credit is given to the 590 Zone for pumping capacity from Maplewood. The booster pump capacity for standby storage assumes the iargest pump is out of service, which wouid reduce the total booster pump capacity of 3,950 gpm to 1,550 gpm. While the 565 Zone can be supplied from Maplewood during emergency conditions, for this storage anaiysis all of the available flow during standby conditions has been credited to the 590 Zone. Equalizing storage does not assume the largest pump out of service for each zone; however, It is limited by the treatment capacity. The current treatment capacity is 3,000 gpm and therefore has been used as the maximum credit availabie for the 590 Zone. The City may add treatment capacity in the future. If the City were to consider providing emergency power for this facility in the future, It would need to evaluate the current pumping, treatment, and well capacity at that time. The required storage would be reduced if automatic emergency power were Installed at Maplewood Booster Pumps 1, 2, 4, and 5; the treatment building; and the wells. B. A credit is given for equalizing and standby storage In the 435 Zone for pumping capacity from Mt. Olivet Reservoir. The credit for equalizing storage is 4,350 gpm. The largest pump out of service is assumed for standby storage, reducing the capacity by l,BOO gpm to 2,550 gpm. 9. A credit Is given in the 495 Zone for a potential future Intertle with Skyway that would have a capacity of approximately 2,500 gpm. The required storage is reduced by this amount for the 495 Zone. 10. T~--'!quired storage in the 196 Zone would be reduced if automatic emergency power were installed at Wpll< 1, 2, 3, and 8. The credit for standby storage assumes the largest of these four wells, Well 8, out of service. WATER SYSTEM ANALYSIS 8.1.4 Boeing Redevelopment Storage Requirements The City is currently anticipating that the Boeing Plant Area will be redeveloped at some time in the future as Boeing sells or leases parcels of land that it owns immediately south of Lake Washington. This Water System Plan evaluates Redevelopment Alternative Nos. 2 and 4 for the Boeing Plant Area. The potential impacts of these redevelopment alternatives on future storage needs are presented in Table 8-4. Impacts to the distribution system are discussed later in this chapter. Redevelopment Alternative No.2 for the Boeing Plant Area projects demands, and therefore storage requirements, that are consistent with those shown in Tables 8-1 and 8-3. Boeing Redevelopment Alternative No. 4 enVlSlons higher-density redevelopment with high employment levels that would result in increased storage requirements. Table 8-4 shows the storage that would be required for both alternatives. The Boeing Plant Area is located in the 196 Zone, so it would primarily affect equalizing and standby storage requirements in this zone. At buildout, approximately 0.5 mg of equalizing storage and 5 mg of standby storage would be required if the Boeing Plant Area were developed according to Alternative No.4. Table 8-4 Required Storage for the 196 Zone with Boeing Redevelopment Alternative No.4 2005 2011 Buildout Average Peak Average Peak Average Peak Day Hour Day Hour Day Hour Demand Demand Equalizing Standby Demand Demand Equalizing Standby Demand Demand Equalizing Standby Facility (m!!) (m91 (mg) [mg) lmg) [mg) (mg) jmg) lmJlt [mgt Jmg) lmg) 196 Zone (Existing Conditions· Boeing Alternative No.2) Required Storage 2.74 0.50 1.26 5.48 3.03 0.56 1.39 6.07 4.89 0.90 2.24 9.77 196 Zone [Future Conditions· Boeing Alternative No.4) Required Storage 2.74 0.50 1.26 5.48 3.35 0.59 1.46 6.70 7.39 1.10 2.74 14.78 Additional 196 Zone Storage 0.00 0.00 0.07 0.63 0.50 5.01 8.1.5 Recommended Storage Improvements Additional storage capacity to address the existing and projected shortfall is being addressed in two ways. First, additional storage facilities are included in the CIP, beginning with construction of a new 565 Zone reservoir in 2005. Predesign of the new 565 Zone reservoir is currently underway. A 12-inch pipeline will also be constructed to connect the new reservoir to the 565 Zone. Other recommended storage improvements include new or upgraded storage facilities in the 196, 320,435, and 495 Zones. Included in the six-year ClP is a new storage tank within the 196 Zone that would provide storage capacity on the east side of the zone, at the south end of the West Hill area. Storage at this location would be needed to support development that may occur between Martin Luther King Way and Monster Road SW, east of 68th Avenue S. A booster pump station could also be constructed at the same time as the new 196 Zone tank in order to provide additional supply capacity to the 495 Zone. Renton _ ChS System Analysis.doc 1017104 R. W. Beck 8-15 Chapter 8· Beyond the six-year CIP, upgrades to the existing Mt. Olivet tank are planned that might include raising the overflow level of the tank, which would result in increased capacity. Depending on the rate of growth and development in the West Hill area, and the results of the Mt. Olivet tank inspection within the next few years, the City may choose to proceed with improvements to the Mt. Olivet ~eservoir prior to constructing new storage for the 196 and 495 Zones. Additional storage in the 435 Zone is recommended to meet the projected buildout storage requirements. Providing additional storage in the 435 zone could be achieved by upgrading the existing 435 tanks or constructing new storage, or some combination of these. Any storage improvements in the 435 Zone would occur later than the six- year CIP. . New storage within the 320 Zone is included as a CIP project that would occur later than the six-year CIP. There is a possibility that significant redevelopment may occur within the Kennydale area of the 320 Zone. If significant growth were to occur, storage in this area would support the needed peak demands, including fire flow. The City is also considering onsite emergency power with automatic transfer switches for several of its pump stations to improve system reliability and to meet requirements for reducing required storage amounts. The City may add backup power supply that is cost effective over the next 20 years. The six-year CIP presented in Chapter 10 shows automatic emergency power for Mt. Olivet Booster Pump Station and Wells 1,2, and 3 (which would likely be the first facilities to receive onsite emergency power if it were feasible). In the future the City will evaluate both emergency power and new storage facilities as options for meeting the required storage for each of its pressure zones. The storage improvements described above will also be important so that the system will be able to meet peak hour demands in the future that may exceed the delivery capacity of the sources of supply. This is discussed in Chapter 7. Other storage improvements such as recoating and regular maintenance to existing facilities are described in Chapter 9, Operations and Maintenance. 8.2 Distribution and Transmission System The City'S distribution and transmission system delivers water supply throughout the City's service area. The larger-diameter mains within Renton's service area deliver water from wells, interties, and storage tanks. Approximately two-thirds of the City's water mains are ductile iron pipe, which is currently the City standard. Most of the remaining one-third of the water system is cast iron, steel, asbestos cement,. or galvanized steel. The City's ongoing main replacement program continues to replace aged, undersized pipe with ductile iron. The City's current policy is to install a minimum of 8-inch-diameter pipeline. Water mains 12 inches in diameter or larger are constructed to provide a "backbone" transmission system throughout the service area andlor to meet fire flow requirements. 8-16 R. "v. Beck Renton_Ch8 System Analysis.doc 1017104 WATER SYSTEM ANALYSIS Dead end and undersized mains in some areas make it difficult to meet peak and fire flow demands. Dead end mains can also result in water quality issues that require additional labor by operations staff (such as more frequent main flushing). The pipe replacement program includes looping of mains wherever possible if it does not already exist. The distribution analysis was performed using the City's hydraulic analysis model, which was updated to H20Net software after the City'S 1998 water plan update. The model was updated with existing and future demands that were developed as part of this Water System Plan update and are presented in Chapter 4. City staff have continued to update the model with new and updated physical system information as it occurred, resulting in a model with the physical system completely current. Additional details of the hydraulic analyses model updates and approach used for this water system plan update are included in Appendix P. Calibration was performed on the model once the updated demands had been entered. City staff performed field fire flow tests in order to provide current data for use in the calibration. Fire flow measurements were taken at 40 test sites throughout the City's service area that included locations within all of the City'S pressure zones. Calibration results are included in Appendix P. It is recommended that the City make the necessary SCADA (supervisory control and data acquisition) and telemetry improvements needed to more accurately record tank levels and the flow and status at pump stations and PRVs. There are some locations (particularly at facilities supplying zones) where flow is currently not measured and the City would benefit by having new flow meters installed. There are other locations that have existing equipment that should be relocated due to turbulence that interferes with accurate measurements. More complete and more accurate SCADA data will allow the City to improve the level of calibration that can be achieved on the hydraulic analysis model. System analyses were performed using the City'S hydraulic analysis model for average day and peak hour demands at existing and buildout conditions. Fire flow analyses were run at buildout peak day demands. The following City design criteria were used in evaluating the adequacy of the distribution and transmission system. • Pipeline velocity less than 8 fps • Minimum pressure equal to or greater than 30 psi (40 psi for new development and redevelopment) at average day, peak day, and peak hour demands • Minimum pressure of 20 psi or greater during fire flow demands • Maximum pressure equal to or less than 80 psi 8.2.1 Analysis of Average Day Demand Hydraulic analysis for average day demands under existing conditions and at buildout indicated both low-and high-pressure areas within the City's service area. Low- pressure areas were identified at the south end of the City's 196 Zone near S Talbot Renton_CbS System Analysis.doc 1017/04 R. W. Beck 8-17 Chapter 8 Road and SW Carr Road. Low pressures in this area are between 20 and 30 psi along SW 'Carr Road, east of S Talbot Road, and north along 98th Avenue NE. Some of the homes in this area have small private booster pumps to improve pressure. To date it has not been feasible to convert these customer services to the adjacent 350 Zone. However, as the areas along S Talbot Road are developed or redeveloped, they are being connected to the 350 Zone. Eventually, the City plans to convert all of the 196 Zone near S Talbot Road and SW Carr Road to the 350 Zone. In addition to the low-pressure areas, several high-pressure areas were identified during average day demand conditions. Some manufacturers of appliances (such as water heaters or washing machines) will not warranty their products if water pressures exceed 80 psi. Some areas have higher pressures and the City's policy is to notify customers that may be susceptible to pressures greater than 80 psi and recommend that they install individual PRVs. The hydraulic analysis identifies the following areas with pressures greater than 80 psi. . 300 WH Zone • SW Sunset Boulevard and SW Lanston Road, south and east of Hardie Avenue NW. • Taylor Avenue NW and Hardie Avenue NW, between NW 3rd Street and NW 1st Street 300 Zone S 14th Street from Whitworth to Smithers 320 Zone Approximately 75 percent of the zone 350 Zone Southwest half of the zone 370 Zone • Most of the Renton Hill • Along SW Sunset Boulevard and SW 4th Place and south of SW 4th Place at Thomas Avenue SW 435 Zone • Kennewick Place NE and NE 29th Street, NE 30th Street, and Meadow Avenue N from NE 30th Street to NE 24th Street • Aberdeen Avenue NE from NE Park Drive to NE 6th Place • West of Edmonds Avenue NE, up to Sunset Boulevard NE 490 Zone Benson Road S and Eagle Ridge Drive S, south to Puget Drive S 8-18 R. W. Beck Renton_CbS System Analysis.'doc 1017104 WATER SYSTEM ANALYSIS 495Zone . • 84th Avenue S, north of S 123rd Place • Stevens A venue NW, NW 7th Street, south to NW 4th Street • Lind Avenue NW, from NW 2nd Place to NW 4th Place • S 132nd Street and Renton Avenue • Kirkland Avenue NE and Jefferson Avenue NE 565 Zone The southwest area of the zone, near Monroe Avenue NE and NE 2nd Street 590 Zone • Western quarter of the zone, west of Rolling Jones Court • Royal Hills Drive to SE 20th Court and Lake Youngs Way SE to SE 16th Street 8.2.2 Results of Peak Hour Analysis An analysis of the Renton system. for peak hour demand was performed for both existing and buildout conditions. The water level in the storage tanks was set at the bottom of the equalizing band for this analysis. This acknowledges that a peak hour demand could occur at a time when the operating and equalizing storage in the City'S tanks has been depleted. While such a situation is unlikely during existing and near- term demand conditions, it is possible in the future. Existing Conditions Analysis of peak hour demand conditions identified several high-and low-pressure areas. Low-pressure areas occurred within the 565 and 196 Zones. 196 Zone Low pressures within the 196 Zone are at the southern end of the zone along S Talbot Road, near S 43rd Street and SW Carr Road. Low pressures in this area are between 20 and 30 psi. 565 Zone • SE 112th Street, from 142nd Avenue SE to 140th Avenue SE; pressures from 24 to 29 psi • NE 20th Street, south to NE 16th Street and Hoquiam Avenue NE to Ilwaco Avenue NE; pressures from 23 to 28 psi High pressures during existing, peak hour demand conditions are generally present in the same areas already identified for average day demand conditions. They occur in areas within the 270, 320, 350, 370, 435 (south end), 490, 495 (northeast area), and 590 Zones. Renton_ Cb8 System Analysis.doc lOl7i04 R. W. Beck 8-19 Chapter 8 Future Conditions Analysis of peak hour conditions at buildout identified eight different areas with low pressures (less than 30 psi). The low-pressure areas occurred within the 196, 440, and 565 Zones. 196 Zone Talbot Road S and SW 43rd Street and south of SW 43rd Street; pressures between 20 and 30 psi. The City anticipates that customers within these low-pressure areas will ultimately be served from the 350 Zone, which would eliminate the low pressures. 490 Zone • SE 8th Place and SE 7th Court; pressures between 26 and 28 psi • South and east of High Avenue S and Cedar Avenue S 565 Zone • SE 112th Street, from 142nd Avenue SE to 140th Avenue SE; pressures between 24 and 29 psi • NE 20th Street, south to NE 16th Street and Hoquiam Avenue NE to Ilwaco Avenue NE; pressures between 23 and 28 psi High-pressure areas identified during peak hour demands at buildout are very similar to the high-pressure areas identified during existing, peak hour demands, occurring in areas within the 270, 320, 350, 370, 435 (south end), 490, 495 (northeast area), and 590 Zones. 8.2.3 Fire Flow Analysis Required fire flow throughout the City's service area is established by the Renton Fire Department and by the Insurance Services Office (ISO) requirements. Generally, single-family residences have fire flow requirements between 1,000 gpm and 1,500 gpm, depending on size of the structure, type of construction, and exposure. Multifamily residences and commercial/industrial properties in Renton typically have fire flow requirements between 3,000 gpm and 6,000 gpm. Schools and municipal or institutional structures also generally fall within this range of required fire flows. Table 8-5 shows the required duration of fire flows for different flows and the types of land use corresponding with these fire flow requirements'. 8-20 R. W. Beck Renton_ChS System Analysis.doc 1017104 WATER SYSTEM ANALYSIS Table 8·5 Service Criteria for Required Fire Flow Land Use Required Flow (gpm) Required Duration (hours) Single-family « 3,600 sq ft) 1,000 1 Single-family (> 3,600 sq ft) 1,500 2 Multifamily and Commercial/Industrial 3,000 3 Multifamily and Commercial/Industrial 4,000 4 Multifamily and Commercial/Industrial 5,000-6,000 4 ill cooperation with City staff, representative locations were selected within each of the City's pressure zones to evaluate the available fire flow. These included locations with the largest fire flow requirements and other representative locations throughout the system. Table 8-6 lists these locations and the required fire flow and duration at each location. The table also shows the available fire flow at each location based on the hydraulic analysis. If one or more of the City's design criteria was not met, then the deficiency is also noted in the last column of the table. As already stated, the fire flows were added to the peak day demands at buildout for analyzing the system's ability to deliver fire flows. Appendix P includes more detailed analysis results for deficiencies identified that includes the specific velocity, pipe IDs from the model, and locations. Where the required fire flow was not met, the available fire flow is shown in bold and . italics in the table. The two primary reasons that the required fire flow is not available at many of the locations are: (1) dead end mains that were either at the boundary of a pressure zone or service area, or elsewhere in a pressure zone where no looping exists; and (2) undersized mains (primarily 4-inch and 6-inch). The City's ongoing water main replacement program is addressing the fire flow deficiencies. The new 565 Zone storage tank near the eastern end of NE Sunset Boulevard will improve available fire flow to the areas around Hoquiam Place NE and 19th Street. 8.2.4 Boeing Redevelopment Distribution System Analysis As mentioned in Chapter 4 of this Water System Plan, demand forecasts for two Boeing redevelopment scenarios were considered. Alternative No.2 is accounted for in the base demand forecasts presented and therefore this alternative was analyzed as the base case for the system analysis. Planned Boeing redevelopment improvements described in Chapter 10 would be needed to meet the level of development anticipated with Alternative No.2. Boeing Redevelopment Alternative No. 4 would require a significant increase in capacity in that area. The location and the size of the additional capacity would be dependent on where and what type of growth occurred and therefore was not analyzed in detail for this Water System Plan. It is recommended that a more detailed Renton_Ch8 System Analysis.doc 1017104 R. W. Beck 8-21 Chapter 8 distribution system analysis be perfonned as specific redevelopment proposals are presented to the City. Table 8-6 Required and Available Fire Flow Required AvallaDle Required Fire Flow Are Flow Fire Flow . Duration at 29 psi Zone Fire Flow No. & Location Node No. (gpm) (hours) (gpm)3 Problem Associated with System Deficiency4 1. 4050 Maple Valley Highway 18349 3,000 3 2,800 Pressure less than 20 psi at dead end 16' main Maplewood Golf Course Clubhouse) 2. South of Martin Luther King Jr. Way & 68th Ave. S 18737 3,000 3 3,000 Velocities up to 19 Ips 196 Velocities 8-11 Ips 3. NE of Card Rd. S & Talbot Rd. S 11456 3,000 3 3,000 4. Park Ave. N, between N 6th Sl & N 8th SI. 15460 6,000 4 6,000 Velocities 11-17 Ips BoeinQ Plant) JOOWH 5. NW 4th 5l & Taylor Ave. NW 11098 3,000 3 900 Pressure less than 20 psi within the zone at dead end 5ky Lanai Apartments, West HilUEariington) main; velocities 8-12 Ips JOO 6. Morris Ave. S & 5 18th 51. (West Talbot Hill) 10752 1,500 2 1,500 7. North of Uncaln Ave. NE & NE 36th Sl 876 3,000 3 2,300 Pressure less than 20 psi within the zone at dead end main; velocities 8-191P.s 8. N 29th 51. & Park Ave. NE 16250 1,500 2 1,500 320 9. East of Garden Ave. N & N 6th SI. 17264 3,000 3 3,000 Velocities at 9 Ips Paccar Kenworth Plant) 10. Lake Washington Blvd., between N 40th SI. & N 50th Sl 21918 5,500 4 4,400 Pressure less than 20 psi within the zone at dead end (Barbee MiIIIPort Quendall, Highlands/Kennydale) main; velocities 10-12 Ips 11. NE of S 55th 5l & Talbot Rd. 5 2066 3,000 3 3,000 Velocities 8-12 Ips 350 12. Talbot Rd. 5 & 5 27th 5l (Valley Medical Center -5. 10745 6,000 4 5,000 Velocities at 8-9 fps Talbot Hill) 370 13. North of 5W 3rd PI. & Powell Ave. SW (Earlinqton) 23264 1,500 2 1,500 Velocities 10-14 fps 14. Kirkland PI. SE & SE 4th SI. J158 1,500 2 1,500 15. NE 27th 5l & Camas Ave. NE 21980 1,500 2 1,500 435 16. North of NE 10th PI. & 5unset Blvd NE 620 3,000 3 3,000 17. NE 4th SI., west of Monroe Ave. NE 426 3,000 3 3,000 Renton Technical Colleqe) 18. 57th Sl, west of Jones Ave. 5 18379 1,500 2 1,100 Pressure less than 20 psi at dead end main; velocities 9-10 Ips 490 19.5 18th 5l, between Eagle Ridge Dr. & Grant Ave. S Pressures less than 20 psi (undersized mains); velocities EaQle RidQe Apartments -Rollinq Hills/Renton Hill) 23905 5,000 4 3,600 9-18 Ips 495 20. 82nd Ave. S & 5 124th Sl 21171 1,500 2 1,000 Pressures less than 20 psi at dead end main; velocities 9-10 fps 21. Hoquiam PI. NE & 19th SI. 21819 1,500 2 1,300 Pressures less than 20 psi at dead end main 22. NW of Hoquiam Ave. NE & NE 10th Sl 790 3,000 3 1,500 Pressures less than 20 psi; velocities 8-9 fps Hazen High School)s 565 23. NW of NE 4th 51. & Monroe Ave. NE 22463 3,000 3 3,000 Renton Technical College) 24. West of Union Ave. SE & SE 4th Sl (Highlands) 12940 3,000 3 3,000 Velocities 8-11 fps 25. Union Ave. NE & NE 4th SI. (QFC • Highlands) 14055 5,000 4 5,000 Velocrties Ull to 10 Ips 26. Pierce Ave. 5E & SE 19th CI. 18540 1,500 2 1,400 Pressures less than 20 psi at dead end main; velocities 8-10 Ips 590 27. East of Benson Rd S & S 23rd 51. 1544 3,000 3 2,600 Velocities 10-24 fps Fred Nelson Middle School) 28. Royal Hills Dr. & Monroe Ave SE 23726 5,000 4 5,000 Velocities up to 9 Ips Rollinq Hills Apartments) 1. Maximum desired fire flow for single-family residential is 1,000 gpm for 1 hour for properties less than 3,500 sq ft, and 1,500 gpm for 2 hours for properties equal to or larger than 3,600 sq ft. 2. Non-residential and multifamily maximum desired fire flow was provided by the fire districts serving the City. 3. Bold, rtalic type indicates locations where required fire flow was not mel. 4. More detailed hydraulic analysis results are included in Appendix P. 5.2,000 gpm to be supplied by the City and 1,000 gpm to be supplied by Water District No. 90. 8-22 R. W. Beck Renton _CbS System Analysis.doc 1017104 WATER SYSTEM ANALYSIS The City already has planned some distribution system improvements to the Boeing Plant Area to meet anticipated growth and redevelopment. These improvements are scheduled to occur in two phases and to be constructed within the next six years. Although this proj ect is not included in the CIP since funding will occur from other ~ources, a detailed description of the project is included in Chapter 10. 8.2.5 Highlands Redevelopment Redevelopment in the Highlands area within the City's 435 and 565 Zones is proposed by the City and therefore was included in the system-wide analysis. A new water main that would provide service from the 565 Zone to customers in the Highlands Redevelopment area that are currently served from the 435 Zone is expected to be constructed by 2005. The 12-inch water main will go from Kirkland Avenue NE west along NE 9th Street to Harrington Avenue NE; then north to NE Sunset Boulevard; and then along NE Sunset Boulevard to NE 12th Street. With this improvement the City should be able to provide adequate transmission capacity within the redevelopment area at the proposed density levels. 8.2.6 Recommended Distribution System Improvements The City's ongoing replacement program uses the following criteria to determine the priority for replacing pipes within the distribution system: 1. Leaking or damaged mains 2. Asbestos cement, old steel, and cast iron pipes 3. Undersized mains (primarily 4-inch and 6-inch) 4. Aged mains As mentioned previously, the City'S ongoing water main replacement program, which targets aged and undersized water mains, is addressing many of the system deficiencies. Table 8-7 lists specific distribution system improvements identified from the hydraulic analysis (especially the fire flow analysis) to upgrade the system and to meet the City's service criteria. Although specific improvements and locations are shown, alternative routes through these same zones may be available to achieve the same benefit. The City coordinates water system improvements with CIP projects sponsored by other City utilities and the state transportation department. The City also looks for opportunities to improve looping when areas are developed or redeveloped. The City's policies, design criteria, and pipe replacement program should address the low pressure and fire flow deficiencies within the Renton system as areas are developed or redeveloped over time. The City maintains a current six-year CIP as part of its water system budgeting process. This CIP includes distribution system improvements and served as the starting point for developing the revised CIP presented in Chapter 10 of this Water System Plan. Renton _ Ch8 System Analysis.doc 1017/04 R. W. Beck 8-23 Chapter 8 Table 8·7 Recommended Distribution System Improvements Zone CIP Project 10 Recommended Improvement 196 MW-1A Provide looping of water main where possible at west end of 68th Ave. S MW-1B Replace existing 8-inch main with 12-inch on east-west segment of 98th Ave. SE, east of S Talbot Rd 300WH MW-1C Provide looping where possible at NW 2nd St., westofTaylor Ave. NW MW-1D Replace 6-inch main with 8-inch on Taylor PI. NW, from Lind Ave. NW to NW 4th St. MW-1E Add 12-inch capacity east-west along NW 4th St., from Lind Ave. NW to Taylor Ave. NW (or a parallel corridor) 320 MW-1F Provide looping where possible on Lincoln Ave. NE at NE 35th PI. and Lincoln Ct. MW-1G Provide looping where pOSSible, south of N 6th St., between Houser Way Nand Garden Ave. N MW-1H Provide looping where pOSSible, near 11th PI. SE & SE 77th PI. MW-11 Provide 16-inch capacity along Lake Washington Blvd. or a parallel corridor MW-1J Provide 12-inch capacity on Jones Ave. NE, from NE 40th St. to NE 43rd St. (or a parallel corridor) MW-1K Provide 16-inch capacity at N 40th St. & Meadow Ave. N 350 MW-1L Provide 16-inch capacity along S Talbot Rd., from S 51st Ct. to S 54th St. MW-1M Provide 12-inch capacity along S 23rd St., west otT,albot Rd. S (near Seattle PRV) 370 MW-1N Replace 8-inch main with 12-inch along S 134th St., west of 84th Ave. S 490 MW-10 Replace 8-inch main with 12-inch along SE 7th Ct., near SE 8th PI. MW-1P Replace 8-inch main with 12-inch along S 18th St., from Eagle Ridge Dr. to Thomas Ln. S; Provide 16-inch capacity on Grant Ave. S, from Puget Dr. S & S 18th St. and on S 18th St. from Grant Ave. S to Thomas Ln. S MW-1Q Replace 4-and 6-inch grid with 8-inch capacity northeast of PRV No. 20, near High Ave. S & S. 11th St. 495 MW-1R Provide 12-inch capacity along Raymond Ave. NW, from NW 3rd St. & NW 2nd St. MW-1S Provide looping near 82nd Ave. S & S 124th St. and S 123rd PI. where possible MW-H Provide 12-inch capacity along 84th Ave. S, from S 124th PI. north 565 MW-1U Provide looping near NE 19th St., west of Hoquiam PI. NE MW-1V Replace 8-inch main with 12-inch along Madrona Dr., from Alder Dr. to Hemlock PI., and along Pine Dr., froni Redwood Dr. to Hemlock Dr. MW-1W Replace 12-inch with 16-inch along Union Ave. NE, just south of NE 4th St. 590 MW-1X Increase supply line from the north to Nelson Middle School to 12-inch capacity MW-1Y Provide looping near Pierce Ave. SE & SE 19th Ct. MW-1Z Replace 8-inch main with 12-inch along Pierce Ave. SE, from Olympia Ave. SE to SE 19th Ct. MW-1AA Provide 16-inch capacity from Rolling Hills tanks along Puget Dr. SE MW-1BB Provide 12-inch capacity along Monroe Ct. SE, from Royal Hills Dr. to Monroe Ave.SE 8-24 R. W. Beck Renton_ChB System Analysis.doc 1017/04 WATER SYSTEM ANALYSIS It is the City's policy to recommend that customers who may be subject to high- pressure water (greater than 80 psi) install individual PRVs. It is recommended that the City continue this policy, particularly for the high-pressure areas identified in this section. 8.2.7 Summary of Future Redevelopment Much of the future growth in the City is expected to consist of redevelopment with increased density residential or higher value commercial and industrial uses. Although improvements to meet this special case of future growth have been discussed elsewhere, the following is a summary of the improvements that may be needed to meet future redevelopment plans in the City. Redevelopment areas will have increased water demands and, in particular, higher fire flow requirements. Since the timing, scope, and size of most redevelopment is uncertain at this time, the water system capabilities and possible improvements were not analyzed in detail as part of this Water System Plan update. Much of the redevelopment will likely be near the boundaries of the City's service area, whereas the City's principal well sources are primarily located within the center of the service area. Therefore, improvements to the distribution system will be required to serve some of this development, particularly where it is some distance from the sources. Alternatives for consideration include reinforcement of the transmission grid, additional storage, and new interties. The necessary improvements should be evaluated when a particular project is proposed. Some of the areas that have been identified where water system improvements would be required to serve higher density development are as follows: • The redevelopment of the Boeing Plant Area has been discussed in this update. The City is planning to make water distribution system improvements based on the final configuration of the redevelopment. In addition, if Alternative No.4 is implemented, the City will need approximately 5 mg of additional storage to meet DOH planning criteria and potentially additional distribution system capacity. • In the past, there have been development proposals for Port Quendal, which is located along the east shore of Lake Washington near the northern boundary of the service area. Fire flow testing conducted in the vicinity during the Water System Plan update showed that additional capacity would be necessary to meet fire flows of 3,000 gpm or higher. Considering the distance from the well sources, it may be less expensive to construct a new reservoir in the area than to reinforce the distribution system. • The area along Rainier Avenue west of the Renton airfield currently has relatively low density commercial uses. There has been interest in redevelopment in this area, but provision of higher fire flows would be difficult. The City and the Skyway Water and Sewer District are currently discussing a joint intertie to the Seattle Public Utilities (SPU) transmission pipeline. This would provide 2,500 to 2,700 gpm of fire flow that could be available in this area. However, some improvements to the Renton distribution system would also be necessary. Renton _ Ch8 System Analysis.doc 1017/04 R. W. Beck 8-25 Chapter 8 • As already mentioned under Section 8.1.5, "Recommended Storage Improvements," a new 196 Zone reservoir, a booster pump station to the 495 Zone, and related water distribution system improvements will be required if there is development in the extreme western portion of the service area in the vicinity of Martin Luther King Way and Monster Road. This area is distant from the City's well sources and there is insufficient capacity to deliver peak demands, including fire protection. This list is not intended to be an exhaustive list of potential redevelopment areas, but examples of the types of situations that the City may face in the future and some of the solutions that may be possible. 8-26 R. W. Beck Renton_CbS System Analysis.doc 1017104 Chapter 9 OPERATIONS AND MAINTENANCE 9.1 Water System Management Organization of the City's entire water system is described in Chapter 2 and shown on Figure 2-1. The operations and maintenance staff is shown under the Maintenance Services Division within the overall organization of the water system. Descriptions of individual job functions and responsibilities as they relate to specific operations and maintenance activities are described below. Normal Oay-to-Oay Operations Normal day-to-day operations of the utility are the responsibility of the Water Maintenance Manager, Mr. Ray Sled. The Water Maintenance Services Unit, supervised by Mr. George Stahl, is responsible for main flushing, tank cleaning, exercising valves and hydrants, leak detection and repair, PRY setting adjustment, maintenance and repair, small meter maintenance, repair and calibration, and tie-in of main extensions. The Utility Maintenance Unit, supervised by Mr. Dan Scottie, is responsible for the operation, maintenance and repair of the booster pump stations, treatment systems (fluoridation, chlorination, pH adjustment, corrosion inhibitor), and the supervisory control and data acquisition (SCADA) system. Preventive Maintenance Preventive maintenance is performed by both the Water Maintenance Unit (a.k.a. the "Water Shop") and by contract. For example, large meter maintenance and calibration is contracted out. Painting of components of a booster bump station usually is performed by the Water Shop while the repainting of a water storage tank would be done by contract with the Water ,utility Engineering Section taking the lead. Field Engineering Field engineering support is supplied by the Water Utility Engineering Section. In some cases the engineering support is provided by the City staff and in other cases the support comes from engineering consultant firms. The City periodically selects a group of consulting firms that are pre-approved for doing small consulting jobs on short notice. Water Quality Monitoring Water quality monitoring is primarily conducted by the Utility Maintenance Unit. This unit performs both operational and compliance water quality monitoring. Operational water quality monitoring includes measuring chlorine, fluoride, heterotrophic plate counts (HPC), iron and phosphate (in connection with corrosion .inhibitor dosing) and pH (in connection with sodium hydroxide dosing for lead and Renton_Ch9 -0 & M Progntmdoc 1017104 Chapter 9 copper rule) in the distribution system. Compliance water quality monitoring is monitoring required by the Safe Drinking Water Act as administered by the . Washington State Department of Health (DOH). The requirements for this monitoring are stated in WAC 246-290, Public Water Supplies. The City maintains a system of monitoring wells around its production ,wells for the purpose of detecting contamination of the aquifers before the contaminants reach the production wells. The Water Utility Engineering Section conducts this monitoring. The Engineering Section also monitors the water table levels in the aquifers. . All of the test results of compliance water quality monitoring and monitoring well monitoring, as well as the water level data, are stored in the City's enterprise-wide Oracle database. . See Appendix L, Drinking Water quality Monitoring Program, for further information on water quality monitoring. Emergency Response The City of Renton Emergency Response Plan defmes how the City will respond to emergencIes. This plan' is coordinated by the Emergency Management Director (Assistant Fire Chief, Administration/Support ServiceslEmergency Management/Safety). The Water System Emergency Response Plan is a sub-plan that provides information related to the drinking water system. The City of Renton Emergency Response Plan has been updated to include responses to address security and terrorist threat issues. The Water Maintenance Manager is responsible for preparing for and responding to emergencies involving the drinking water system. The Water Shop maintains an emergency standby call-out list of employees on standby to respond to emergencies on weekends, holidays, and after normal business hours on weekdays. The response to an emergency may vary from a single maintenance technician addressing a relatively minor problem to the City activating its Emergency Coordination Center and calling on the state and federal governments for assistance in response to a major City-wide or regional disaster. Cross Connection Control Plan The Cross Connection Control Plan is included in Appendix G of this Water'System Plan. Most potential cross connection situations are identified through the plan review and building permit process. The Water Utility Engineering Section and the Development Engineering Section work closely together to identify potential cross- connection situations during the review of proposed project plans and to specify control measures for those cross connections that cannot be eliminated. Additionally, the Cross Connection Control Program Manager in the Water Utility Engineering Section works closely with the plumbing inspectors to ensure that the required, approved control devices are properly mstalled and initially tested. The Cross Connection Control Plan Manager maintains a database of all devices protecting the water system from potential cross-connection hazards. The database is used to track recurring testing and t<;> generate testing reminder notices to device owners. Members of the Water Shop, the Water Utility Engineering Section, construction inspectors, and plumbing inspectors are always on the alert to discover potential and real cross connection situations as they go . 9-2 Renton _ Ch9 -0 & M Programdoc 1017104 OPERATIONS AND MAINTENANCE about their business in the City and to report such situations to the Cross Connection Control Plan Manager for further investigation. Implementation of the Improvement Program Implementation of the Improvement Program is primarily the responsibility of the Water Utility Engineering Supervisor as most of the improvements are done by contract. The Water Utility Engineering Supervisor works closely with the Water Maintenance Manager to identify and prioritize required improvements. See Chapter 10, Capital Improvement Program, for more information. Budget Formulation The Water Utility Engineering Supervisor formulates the Capital Improvements Program Budget and the Water Maintenance Manager formulates the maintenance and operations budget. Both work closely with their Division directors and the Principal Financial & Administrative Analyst to formulate the budgets. The Principal Financial & Administrative Analyst works closely with the Finance Department staff on the budget formulation. Response to Complaints Complaints and questions are fielded by members of both the Water Utility Engineering and Water Maintenance staffs. However, all water quality complaints are forwarded to the Maintenance Services Division secretary (425-430-7400) for logging and response by the Water Maintenance Section. Either the Water Maintenance Manager or the Utility Maintenance Supervisor will follow up with the customer after the complaint has been investigated. Public and Press Contact Contact with the press media is usually handled by the Utility Systems Director, Maintenance Services Director, Water Utility Engineering Director, or Water Maintenance Manager. The Planning, Building, and Public Works Department has a central customer service counter on the sixth floor of City Hall. Members of the Water Utility Engineering staff often report to the customer service counter to assist customers who have questions about water quality or obtaining service. Billing Billing for the Drinking Water Utility, as well as for the wastewater, storm, and solid waste utilities, is performed by the Utility Billing Section of the Finance and Information Systems Department. The meter readers work for the Water Maintenance Manager. 9.2 Operator Certification The City of Renton's drinking water system is classified as a Group 4 distribution system. The Maplewood Water Treatment Plant treats water to remove iron & Renton_Ch9 -0 & M Prograrn.doc 1017104 9-3 Chapter 9 manganese (greensand filtration), converts hydrogen sulfide to sulfate (addition of oxygen with catalytic conversion on granular activated carbon), and removes ammonia by reacting it with chlorine to convert it to nitrogen gas. Additionally, the water is treated with fluoride. The plant is considered a Class III purification plant (Association of Boards of Certifications classification). The water from wells RW -1, RW-2, and RW-3 receives primary disinfection by flowing through a large-diameter pipe before entering the distribution system. Additionally, the water is treated with , fluoride and sodium hydroxide. This plant is considered a Class I purification plant. All other treatment in the system is in-line fluoridation, in-line chlorination, and addition of chemical (sodium hydroxide and orthopolyphosphate) to inhibit corrosion and is not considered a "purification plant." ' WAC 246-292 requires that the system be managed by a Water Distribution Manager IV, that the Maplewood Plant be operated by a Water Treatment Plant Operator III, that the Wells RW-I-2-3 CT pipeline "plant" be operated by a Basic Treatment Operator, and that the Cross Connection Control Program be managed by a Cross Connection Control Specialist. The City meets and/or exceeds all of these requirements. Table 9-1 lists the certifications ofthe drinking water system staff. In-service training consists of special courses and seminars specifically designed for operation and maintenance groups. The training is offered through organizations like the American Water Works Association (A WW A), various trade organizations, local colleges and universities, Department of Health, and by industrial training specialists. Renton's policy of supporting and promoting operator training should be continued. As the complexity of the water system increases and as the service area expands, the need for trained, efficient staff to keep pace with public demand and advances in technology will become more important. New employees need utility orientation and basic information and experienced employees need training in regulatory requirements and technological updates. The importance of regular employee training can be strengthened by linking the training with the personnel evaluation program. The personnel evaluation program should be used to provide a regular and predictable employee promotional plan. A predictable promotional policy that is closely linked with an employee training program can improve employee competence and proficiency. An important point regarding training is that mandatory certification is required by the state. Qualifications and training requirements for obtaining and maintaining certification are stipulated by the Department of Health. The City Council and Administration have endorsed increased training, with the result that improved proficiency levels have occurred in the last five years. 9-4 Table 9·1 Staff Certification Name Ray Sled Charles D. Scottie S. George Stahl Ron Druce Certification WDM4, WTP04, CCS WDM3, WTP03, CCS WDM3, CCS WDM3, WTOIT, CCS Renton_Ch9 -0 & M Programdoc 1017104 OPERATIONS AND MAINTENANCE· Sean Campbell Danny J. Hribal Robert Sagara Gregg Seegmiller Michael W. Schuld Eric L. Schwind Charles G. Durbin Gary Smith Craig Pray Lys Homsby Abdoul Gafour J.D. Wilson Tom Malphrus Carolyn Boatsman Laszlo Csuha WDM2 WDM1 WDM2 WDM2 WDS WDS WDM3, WTP01 WDS2 WDM1, BTO WDM3, CCS WDM4 WDM3 WDM3 WDM2 WDM2, CCS 9.3 System Operation and C9ntrol Identification of Major System Components The operation of the major system components is generally described in Chapter 3, Existing System. The components are shown on the map in Figure 1, Existing Water System and Figure 2, Existing Hydraulic Profile. Routine System Operation Each major system component has an 0 & M manual that describes start-up and shut- down procedures and safety procedures. Additionally, the Water Shop has written procedures for both electrical and hydraulic lock-outltag-out of the water system facilities. All sources are metered as well as all of the booster pump stations. With the exception of the Tiffany Park Booster Pump Station and Fred Nelson Booster Pump Station all the flow of water of the sources and the booster pump stations is monitored and recorded by the SCADA system. Meters located between the source of water· (Seattle Public Utilities transmission lines) and the pump stations measure the quantity of water that flows through the Tiffany Park Booster Pump Station and Fred Nelson Booster Pump Station. In addition to the SCADA recordings of flow quantities and flow rates the Water Shop staff read and record the flow quantities at all these sites on a daily basis as part of the daily station check. Retail meters at customer connections are read either monthly or bi-monthly. The meter reading routes, sequencing, and cycles are maintained in the City's Utility Billing System. Most of these meters are visually read. Meters that are located in vaults and within mechanical rooms are equipped with touch-read systems. The City is gradually installing radio-read heads on the meters in the system. The system performance is evaluated in terms of meeting Safe Drinking Water Act water quality requirements, maintaining customer satisfaction, controlling the cost of producing and delivering water, and meeting system policy goals for service pressure and fire flow. Renton_Ch9 -0 & M Program.doc 1017104 9-5 Chapter 9 Preventive Maintenance Program . The preventive maintenance program is documented and tracked in the Maintenance Services Division's Maintenance Management System (MMS). The MMS is a computer-based system used to schedule and assign resources (manpower, materials, equipment) for maintenance activitie's and to document the resources actually used. Table 9-2 shows the maintenance and operations activities for a typical year and shows the allocation of available man-hours to the activities. Equipment, Supplies, and Chemical Listing Table 9-3 is a listing of vehicles and major equipment aSsigned to the Water Shop. Inventoried supplies (items stocked on shelves or stored in the yard) are purchased and tracked by the Maintenance Services Division Maintenance Buyer and staff. The Water Shop Manager and staff provide inputs to the Buyer as to appropriate items and quantities to stock. In addition to stocked items· the buyer maintains' information on source of supply for chemicals that are delivered directly to the place of use and for parts & equipment items that are not stocked on the shelf or in the yard due to low frequency of purchase or large physical size. The Maintenance Buyer uses Bellwether Software PMX to purchase items and manage inventories. The Water Maintenance Manager maintains infonnation regarding service representatives for major water system components and chemical suppliers.' Additionally, the Water System Emergency Response Plan contains lists of contacts for suppliers and support services. Both the Water Shop and the Water Utility Engineering Section maintain copies of the o & M manuals for all of the major components of the drinking water system. These manuals list manufacturers' part numbers and descriptions as well as technical specifications for components and chemicals used. 9.4 Emergency Response Program The Drinking Water Utility maintains a Water System Emergency Response Plan, which is a sub-plan ofthe City of Renton Emergency Response Plan. Water System Personnel Emergency Call-up List The Water Shop publishes two emergency call-out lists: one for emergencies dealing with wells and booster .pump stations ("Water Pump Stations") and one for emergencies dealing with mains, PRY stations, and tanks ("Water Distribution"). These lists are updated periodically and distributed to holders of copies of the City of Renton Emergency Responset Plan. Examples of the lists are included at the end of this chapter. Notification Procedures -Water Quality Emergencies See Appendix L, Drinking Water Quality and Monitoring Program. 9-6 Renton_Ch9 -0 & M Programdoc 1017104 OPERATIONS AND MAINTENANCE .. Vulnerability Analysis See Chapter 6, Policies, Criteria and Standards, for the City's reliability and vulnerability policies. The City completed its security vulnerability assessment in December 2003 and updated the city-wide Emergency Response Plan in June 2004 as required by the Public Health Security and Bioterrorism Preparedness and Response Act of 2002. The City has budgeted for security improvements in its Water System Capital Improvement Program. The City assesses the vulnerability of its drinking water system to the threats of earthquakes, floods, power outages, etc., periodically. New facilities are designed and constructed to resist the latest assessments of earthquake loads and acceptable damage. When the benefits justify the costs the City will upgrade a facility to better resist earthquake loads. For example, when the City repaired the damage to the Highlands 565 Zone reservoir and Rolling Hills 590 Zone reservoir (damage· from the February 28,2001, Nisqually Earthquake), it upgraded the facilities to better withstand earthquake forces. The City uses redundancy in mains, pumps, feeds into pressure zones, etc., to increase the water system's overall reliability and reduce its vulnerability to disruptions. Some examples of proposed projects in the CIP that increase system reliability: (1) joint funding of booster pump station with automatic start/automatic transfer emergency power with Skyway Water and Sewer District that will provide an emergency back-up feed to the 495 Pressure Zone, and (2) emergency power supply for some of the 196 Pressure Zone facilities. Contingency Operational Plan Contingency operational plans for the various facilities are included in the Water System Emergency Response Plan. 9.5 Safety Procedures The Water Maintenance Section complies with OSHA and WISHA. All workplace hazards and related safety and first aid equipment and procedures are identified and communicated to the Water Shop staff via safety briefings, facility specific Standard Operating Procedures, facility Operation and Maintenance Manuals, and/or Material Safety Data Sheets. 9.6 Customer Complaint Response Program Each year the Water Shop receives approximately 3,000 calls of which approximately 500 are complaints. Each call is logged into the Maintenance Management System. When applicable, a staff member is assigned to the complaint. MMS tracks the problem, its location, who is assigned to investigate/fix the problem, what was discovered in the field, what was done to address the complaint, and how much Renton_Ch9·0 & M Programdoc 1017104 9-7 Chapter 9 - time/materials were expended. Complaints are mainly water leaks (50%), taste and odor problems (40%), and high water bills (10%). 9.7 Record Keeping and Reporting Maintenance and operating records are an essential tool in utility management and operation. They also provide the supporting data necessary for long-term planning. The Water Utility keeps several types of records: operational records (well, pump and spring flows, reservoir levels, water table levels, pH, turbidity), water distribution operational records (residual chlorine, fluoride, pH, heterotrophic plate count, iron, phosphate), chemical dosing records, main disinfection records, personnel records, customer contact records, meter records, inventory records, main flushing records, and mandatory water quality sampling records. The City'S records are legible, permanent, accurate, and accessible. Their importance to the efficient functioning of the Utility is effectively addressed in the context of the in-service staff training seSSIOns. Hard copies of the records are maintained at the Water Maintenance Manager's office. Additionally, hard copies of mandatory water quality.sampling records are kept at the Water Utility Engineering office. The Water Utility Engineering Section maintains information on the mandatory water quality sampling test results in a d,,!:tabase in the City's enterprise database management system. This Section also maintains electronic copies (Excel files) of the Water Shop's operational records on one of the City's computer network servers. The Water Utility Engineering Section maintains files of hard copies of backflow test resultssubrnitted by the device owners' testers as well a _ cross connection control database in the City'S enterprise database management system. The SCADA system (described in Chapter 3) records the flow rates and flow quantities of all wells, booster pumps, and spring; water levels in reservoirs and production wells; levels in chemical storage tanks; pH levels of raw and treated water; pump starts and fails; alarm conditions; and various other data. Current maps of the water system are also important for operation and maintenance. Changes or additions to the water system are added as they occur by the Water Utility Engineering Section and paper and electronic copies are provided to the Water Maintenance Section, the Fire Department, Development Services Division, and others. Beginning in 2004 the geospatial and attribute information on the drinking water system is maintained in ESRI ArcGIS (ArcSDE geodatabase in City's enterprise database management system). Currently, electronic versions of the maps are provided to the Water Shop valve maintenance crew and the City Utility Locator as GeoSQL files on notebook computers for field use. They are also provided with CDs with copies of scanned images of the water system record drawings that can be viewed in the field. Sometime in late 2004 or early 2005, the information will be provided to the field crews using ESRI ArcP AD on either notebook or tablet PCs. This will facilitate checking out and checking in data to update the master geodatabase. For users in City Hall the water system information is available in shape files that can be read in a free viewer called ArcExplorer. 9-8 Renton_Cb9· 0 & !vi Programdoc 10/7/04 OPERATIONS AND MAINTENANCE Paper forms on the maps include valve, hydrant, and fire flow map books at 1" = 400" and wall maps at various scales. Maps are also available in PDF format. Records are kept in accordance with the Revised Code of Washington and the Washington Administrative Code. The City's files maintenance plan outlining specific instruction for the keeping and destruction of files is maintained and managed by the City Clerk. Renton_Ch9 -0 & M Programdoc 10/7/04 9-9 Chapter 9 Table 9·2 Operations & Maintenance Activities -Typical Year Activity Work Quantity Work Unit Labor Days Program 01 -Water Distribution I Meters Test' Repair Meter 3"+ 110 Meter 3"+ 27 Replace Meter 1.5" -2" 50 Meter 25 New Meter Accounts 180 Meter 18 Meter Readings 480 Route 360 Meter On , Offs 1,402 Meter 84 - Meter Closings 701 Meter 87 Meter Re-reads 420 Meter 8 Replace' Repair Exist Meter 420 Meter 42 Sawdust Meter Boxes 841 Box 14 Uds, Adjust' Clean Boxes 560 Box 11 New Meter Install 220 Meter 27 Fire Meter Services 20 Meter 10 Program 01 Total 715 Program 02 -Water Distribution I Service Service Install 55 Service 110 Contractor Repairs to Service 12 Service 6 Service Repairs 250 Service 137 Check Leaks I None Found 210 Meters 42 Abandon Service 0 Service 0 Transfer Service 30 Service 45 Replace Service 60 Service 140 Program 02 Total 480 Program 03 -Water DistributionNalves Gate Valve Inspection 2,256 Valve 250 Gate Valve Repair 45 Valve 33 Program 03 Total 283 Program 04 -Water Distribution...,. Mains Leak Detection 13,900 Unear Feet 18 Cut-In Tees & Valves 12"+ 6 Cut-In 18 Main Cut & Cap 42 Labor Hour 21 Main Connections 70 Tie-In 210 Locate 'Inspect' Repair Airvac 360 Labor Hour 13 Polypig Mainline 0 Unear Feet 0 Main Replacement 1,000 Unear Feet 40 Cast Iron Main Repair 8 Repair 24 Steel Main Repair 10 Repair 30 AC Main Repair 5 Repair 12 Disinfect New Mains for Contractors 275 Labor Hour 34 Program 04 Total 421 9-10 Renton_Cb9 -0 & M Programdoc 1017104 OPERATIONS AND MAINTENANCE . Table 9·2 Operations & Maintenance Activities -Typical Year Activity Work Quantity Work Unit Labor Days Program 05 -Water Distribution I Hydrants Hydrant Testing 5,810 Hydrant 134 Hydrant Repair 319 Hydrant 63 Part-Time Hire -Hydrant Painting 581 Hydrant 58 Hydrant Replacement 128 Labor Hour 16 Program 05 Total 272 Program 06 -Water Distribution I Reservoirs Reservoir Maintenance -Intemal 196 Labor Hour 24 Reservoir Maintenance -Extemal 90 Labor Hour 11 Part-Time Hire -Groundskeeping 1,260 Labor Hour 157 Program 06 Total 193 Program 07 -PRY Stations PRY Station Maintenance 272 Labor Hour 68 Program 07 Total 68 Program 08 -Chemical Treatment Chemical Treatment Inspection 1,600 Labor Hour 300 Chemical Treatment Preventive 160 Labor Hour 20 Maintenance Chemical Treatment Maintenance 88 Labor Hour 44 Treatment Chemical Handling 800 Labor Hour 100 Program 08 Total 464 Program 09 -Pump Stations Pump Station Preventive Maintenance 494 Labor Hour 123 Pump Station Inspection 1,235 Labor Hour 115 Pump Station Painting 252 Labor Hour 3 Pump Station Electric 95 Labor Hour 11 Pump Station Piping 95 Labor Hour 11 Regulatory Compliance 50 Labor Hour 12 Program 09 Total 275 Program 11 -SCADA System SCADA Maintenance 360 Labor Hour 18 Program 11 Total 18 Program 12 -Water Quality Water Testing ·1,200 Samples 45 Lead & Copper Rule Testing 40 Labor Hour 5 Water Quality Complaint Investigations 90 Complaints 14 Flushing Mains 300 Labor Hour 46 Aquifer Monitoring I Testing 28 Labor Hour 3 Program 12 Total 114 Program 13 -Miscellaneous Temporary Meters 0 Meter 0 Equipment Service 200 Labor Hour 25 Stores -Yard Work 300 Labor Hour 37 Renton _ Ch9 -0 & M Program doc 1017104 9-11 Chapter 9 Table 9·2 Operations & Maintenance Activities -Typical Year Activity Work Quantity Work Unit Labor Days Contractor Construction -Walk Thru's 240 Labor Hour 240 Meter Reader Postings 12 Labor Hour 1 Emergency Response 300 . Labor Hour .75 Utility Locating 2,080 Labor Hour 260 Work -Other Section 192 Labor Hour 24 Program 13 Total 452 Program 90 -Administration Field Supervision 1.400 Labor Hour 288 Professional Training 700 Labor Hour 87 Planning & Records 1,900 Labor Hour 213 -Plan Review 400 Labor Hour 50 Meetings & Conferences 1,000 Labor Hour 125 Program 90 Total 765 Program 91 -Leave Time Payroll Adjustments 0 Labor Hour 0 Sick Leave Usage 1,200 Labor Hour 150 Absent Time 5,600 Labor Hour 700 Program 9fTotai 850 Grand Total 5,375 9-12 Rentoo_Ch9 -0 & M Programdoc 10/7/04 OPERATIONS AND MAINTENANCE· Table 9·3 Water Department Equipment (2004) Vehicle # Year Vehicle Description B061 1995 Chevy G10 Van B074 1997 Daimler Chrysler Van B07 1998 Chevy Hi Cube Van B094 2001 Chevy Van B101 2001 Chevy Blazer B105 2002 Chevy Astro B110 2003 Chevy Astro C167 1994 GMC S15 Pickup C180 1997 Chevy Pickup C181 1997 Ford Pickup C189 1999 GMC Pickup C217 2002 Ford F250 Pickup C218 2002 Ford Ranger C224 2003 Ford Ranger 0065 1991 Chevy 1 ton with Service Body 0066 1991 Ford Dump Truck 0069 1992 Chevy 1 Ton Flatbed Dump 0073 1991 International Dump Truck 0075 1995 Ford F450 Dump Truck 0089 1999 Ford F550 Dump Truck 0093 1999 Ford F550 Dump Truck 0095 2000 Chevy 3500 Dump Truck 0100 2000 Ford F550 Dump Truck E095 1997 Case 580SL Backhoe E096 1994 Hyster H80XL Forklift S084 1973 Hobart Lig-Air Portable Welder S126 1985 Torklift Utility Trailer S133 1987 Torklift Covered Utility Trailer S151 Torklift Flatbed trailer 4 x 6 S155 John Deere 240 Tractor S161 1996 Sullair D185QV Air Compressor S169 1998 Traileaze D20R24 Trailer S186 2001 Simpson 500 KW Trailer Mounted Generator S191 2002 John Deere 345 Riding Mower S192 1995 Allm NL4CA YMX S194 2004 Frys EQ290 X-130 1988 X-130-1 2004 Renton _ Ch9 -0 & M Program doc 10/7/04 9-13 MEMORANDUM Date: September 24, 2004 To: Police and Fire Departments From: Maintenance Shops Subject: EMERGENCY STANDBY CALL OUT LIST FOR WATER DISTRIBUTION Step 1: Weekdays, weekends and holidays, the phone number to reach the digital pager is (425) 568-0529 Cell # (425) 766-3838. Step 2: If you can not reach the callout person, call one of the supervisors. Step 3: Call the Police Dept. and they will relay the message to the person on standby. Call out people will respond and call 1 h r D h d ft 1 k" h only t e Po Ice Jept. w en page a er norma wor mg ours. STANDBY PERSON Sean Campbell Gregg Seegmiller Mike Schuld Eric Schwind Sean Campbell Gregg Seegmiller Mike Schuld Eric Schwind Sean Campbell Gregg Seegmiller Mike Schuld Eric Schwind Sean Campbell Gregg Seegmiller Mike Schuld Eric Schwind Sean Campbell Gregg Seegmiller Mike Schuld Eric Schwind SUPERVISORS Ray Sled George Stahl John Thompson OTHERS WEATHERNET Police Department HOME PHONE (206) 898-4059 (253) 631-7378 (425) 687-1256 (253) 583-8381 (206) 898-4059 (253) 631-7378 (425) 687-1256 (253) 583-8381 (206) 898-4059 (253) 631-7378 (425) 687-1256 (253) 583-8381 (206) 898-4059 (253) 631-7378 (425) 687-1256 (253) 583-8381 (206) 898-4059 (253) 631-7378 (425) 687-1256 (253) 583-8381 (425) 228-1902 (425) 255-2611 (425) 255-1017 (425) 644-8468 (425) 430-7500 J :\ADMIN\CALLOUTS\ Water.doc DATErrIME ON STANDBY FROM 6117/04 3:30pm 6124/04 3:30pm 7/1104 3:30pm 7/8/04 3:30pm 7/15104 3:30pm 7/22/04 3:30pm 7/29/04 3:30pm 8/5/04 3:30pm 8/12/04 3:30pm 8119/04 3:30pm 8/26/04 3:30pm 912104 3:30 pm 9/9/04 3:30pm 9116/04 3:30pm 9/23/04 3:30pm 9/30/04 3:30pm 1017104 3:30pm 10/14/04 3:30pm 10121104 3:30pm 10/28/04 3:30pm (425) 766-6171 (Cell) (425) 766-8863 (Cell) (425) 766-3767 (Cell) ADDITIONAL CALL OUT Danny Hribal Gary Smith Fred Enriquez Bob Sagara Patrick Pierson Joshua O'Neill TO 6/24/04 7:00 am 711/04 7:00am 718/04 7:00 am 7115104 7:00 am 7122104 7:00 am 7/29/04 7:00 am 8/5104 7:00 am 8112/04 7:00 am 8119104 7:00am 8/26/04 7:00am 912104 7:00am 9/9/04 7:00 am 9/16/04 7:00 am 9/23/04 7:00 am 9/30/04 7:00 am 1017104 7:00 am 10/14/04 7:00 am 10/21/04 7:00 am 10/28104 7:00 am 11/4104 7:00 am (425) 568-0375 (pager) 24HR (425) 481-6442 (253) 639-3482 (206) 755-2398 (253) 862-7793 (206) 617-6395 (253) 630-2190 MEMORANDUM Date: September 24, 2004 To: Police and Fire Departments From: Maintenance Shops Subject: EMERGENCY STANDBY CALL OUT LIST FOR WATER PUMP STATIONS Step 1: Weekdays, weekends and holidays, call home phone or cellular number listed for person on call. Step 2: If you cannot reach the callout person, call one of the supervisors. Step 3: Call the Police Dept. and they will relay the message to the person on standby. Call out people will respond and call IhPI"D h dft I kh OnlY teo Ice Jept. w en page a er norma wor mg ours. STANDBY PERSON CRAIG PRAY RON DRUCE GREG DURBIN RON DRUCE RON DRUCE GREG DURBIN CRAIG PRAY RON DRUCE GREG DURBIN CRAIG PRAY RON DRUCE GREG DURBIN CRAIG PRAY RON DRUCE GREG DURBIN CRAIG PRAY SUPERVISORS Dan Scottie Ray Sled George Stahl John Thompson OTHERS WEATHERNET Police Department C:\windows\TEMP\ WaterQ.doc HOME PHONE (253) 638-8865 (425) 766-1866 (253) 351-8964 (425) 766-6174 (425) 432-3320 (425) 766-6179 (253) 638-8865 (425) 766-1866 (253) 351-8964 (425) 766-6174 (425) 432-3320 (425) 766-6179 (253) 638-8865 (425) 766-1866 (253) 351-8964 (425) 766-6174 (425) 432-3320 (425) 766-6179 (253) 638-8865 (425) 766-1866 (253) 351-8964 (425) 766-6174 (425) 432-3320 (425) 766-6179 (253) 638-8865 (425) 766-1866 (253) 351-8964 (425) 766-6174 (425) 432-3320 (425) 766-6179 (253) 638-8865 (425) 766-1866 (360) 871-4529 (425) 228-1902 (425) 255-2611 (425)255-10\7 (425) 644-8468 (425) 430-7500 DATE/TIME ON STANDBY FROM TO 6/23/04 4:30PM 6/30/04 6:00AM 6/30/04 4:30PM 717104 6:00AM 7/7/04 4:30PM 7/14/04 6:00AM 7/14/04 4:30PM 7/21104 6:00AM 7/21104 4:30PM 7/28/07 6:00AM 7/28/04 4:30PM 8/4/04 6:00AM 8/4/04 4:30PM 8/11104 6:00AM 8/11104 4:30PM 8/18/04 6:00AM 8/18/04 4:30PM 8/25/04 6:00AM 8/25/04 4:30PM 9/1104 6:00AM 9/1/04 4:30 PM 9/8/04 6:00AM 9/8/04 4:30 PM 9/15/04 6:00AM 9/15/04 4:30PM 9/22/04 6:00AM 9/22/04 4:30PM 9/29/04 6:00AM 9/29/04 4:30PM 10/6/04 6:00AM 10/6/04 4:30PM lO/l3/04 6:00AM (425) 766-6172 (Cell) (425) 766-6171 (Cell) (425) 766-6177 (Cell) (425) 766-3767 (Cell) (425) 568-0375 (Pager) 24HR Robert Purdy 425-226-1057 (home) Chapter 10 CAPITAL IMPROVEMENT PROGRAM The City of Renton is committed to upgrading and expanding its water system to maintain it in good and reliable condition and to accommodate future growth. The City prepares a six-year Capital Improvement Program (CIP) to plan and budget for new water system projects. The six-year CIP is part of the growth management planning cycle and is updated annually as part of the City budgeting process. The projects presented in the CIP are consistent with the City's policies and design criteria, as described in Chapter 6. The water resource analysis (Chapter 7), system analysis (Chapter 8), and review of the operation and maintenance program (Chapter 9) describe the projects that are included in the CIP and briefly summarized in this chapter. This chapter describes projects in the current six-year CIP as well as projects that will be considered by the City in the future, beyond six years. The six-year CIP is discussed in Section 10.1 and recommended system improvements with costs are shown in Table 10-1. In addition, the locations of the supply, reservoir, and pump station improvements appear on Figure 10-1. Funding for the CIP is discussed in Chapter 11, Financial Program. Section 10.2 describes recommended projects that may be implemented by the City as part of its future CIP. Table 10-2 lists these projects. 10.1 Six-Year CIP Project Summary The City'S CIP is organized into the following categories according to the benefits of projects to the water system: supply and storage improvements, water quality improvements, water main rehabilitation, major maintenance, and regulatory compliance. The six-year CIP projects proposed in each of these categories are briefly summarized in the following discussion. 10.1.1 Supply and Storage Improvements -, Emergency Water Interties with Adjacent Water Districts The City of Renton has a number of emergency ~ater interties with adjacent water districts in order to provide additional system reliability. The City is currently negotiating with the Skyway Water and Sewer District for an intertie that would be located near the West Hill Reservoir. This is in conjunction with a new connection between Skyway and the Seattle water transmission pipelines that would substantially improve delivery capability. The intertie would have a capacity of between 2,500 gpm Renton_ChlO CIP,doc 1017104 Chapter 10 and 2,700 gpm. It would provide emergency supply to Renton fro~ the Skyway service area. The City may also consider other interties in the future. 565 Zone Reservoir The City is preparing the predesign of a new 2.0-mg storage tank for the 565 Zone. This new tank is needed to increase the storage availa,ble in this zone for fire protection and other emergencies and to improve reliability so that the Highlands 565 tank can be taken out of service for maintenance. It will be located on City property near NE Sunset Boulevard and 142nd Avenue SE close to the northeast limits of the service area. This project will also include a 12-inch main connecting the new tank to the 565 Zone distribution system at NE Sunset Boulevard. 196 Zone Reservoir and Pump Station This project would construct a new 196 Zone reservoir and pump station at the east side of the 196 Zone, south of the West Hill area. 196 Zone storage in this area would help support anticipated development that is expected in the area south of Martin Luther King Way and east of 68th Avenue S. A new pump station would also allow for the storage in this new reservoir to be pumped to the 495 Zone, providing additional supply and added redundancy to this area. This project is inclu9.ed in the six-year CIP. However, upgrades to the Mt. Olivet Reservoir described later in this chapter may occur before the 196 Zone storage in the West Hill area if development does not occur at the rate anticipated in the eastern 196 Zone, and/or the upcoming inspection of the Mt. Olivet Reservoir indicates that itpprovements are needed within the next six years .. 196 Zone Emergency Power The City is budgeting onsite emergency power with an automatic transfer switch at several of its facilities in the 196 Zone in order to improve system reliability. Additional feasibility analyses will determine whether it is more cost effective to install emergency power at several locations within the 196 Zone or to construct new storage facilities to provide the required· storage within the zone. If it is determined. to be feasible, the emergency power would be installed at the Mt. Olivet Pump Station site. A cable from the Mt. Olivet Pump Station to Wells 1,2, and 3 will also provide automatic back-up power to these wells. Other facilities may also be considered for onsite emergency power in the future. Pipe Oversizing Reimbursements This project consists of reimbursements by the City to developers to cover the costs associated with oversizing water mains in excess of 8 inches in diameter to provide additional pipe capacity to meet additional future development requirements. 10-2 R. W. Beck Renton_ChlO CIP.doc 1017104 land,€rest.Way- -,/,-, ~------=----.-~==--~ Mercer Island --------. / -( ,/U~i:~:orporated / King Courlty r ~ , Lake Washington R:lSeattleI11-o0880-10000-o001 City of Renton Water System PlanlGISlmapfileslReporl FiguneslCIP _figure.mxd V Seaule Meter IWM-3]' ""'1 r I ' ..-----f~-I---- 1 -l I , , 1"'---·_· -___ ._. ___ _ Legend [ M-1] CI P Project c c c Current Service Area • •• Urban Growth Boundary ====:; Renton City Limits City Limits ==:J Water Body Pressure Zone D 196 D West Hill 300 D 300 D 320 D 350 D 370 D 395 D 435 D 490 D 495 D 565 D 590 Note: Not all CIP projects are associated with a specific location and therefore may not be shown on this figure. __ -==::::::. ____ Miles o 0.25 0,5 1 Figure 10-1 Capital Improvement Program Water System Plan Renton, Washington CAPITAL IMPROVEMENT PROGRAM 10.1.2 Water Quality Improvements Maplewood Water Quality Improvement and Treatment Facility This project is under construction and consists of a water filtration facility at the Maplewood Booster Pump Station to improve the finished water quality of the water supplied by the Maplewood wells. Filtration is needed to remOve manganese, ammonia, and hydrogen sulfide from the wells' water, which is causing taste and odor problems as well as the staining of customer plumbing fixtures and laundry. This project is currently under construction and the budget amounts shown in the CIP are for the remaining construction expenditures in 2005. Well SA Water Quality Improvement This proj ect consists of the design and construction of a water filtration facility for the existing Well 5A to improve the finished water quality by removing manganese, ammonia, and hydrogen sulfide from the raw water. 10.1.3 Water Main Rehabilitation Water Main Replacement The City budgets approximately $1,000,000 or more annually to replace aged and undersized mains. These pipe replacements include old, corroded, and leaking unlined pipes in the City'S water system made of cast-iron, steel, and asbestos-cement. There are approximately 498,000 feet (94 miles) of steel and cast-iron water mains and 24,000 feet (4.5 miles) of asbestos-cement water mains remaining in the system, varying in size from 2 inches to 42 inches in diameter. The ages of the pipes range from 15 to 60 years. Corroded pipes can cause leaks, require costly repairs, reduce water pressure and flow, and create water quality problems due to rust and buildup of deposits in the pipes. Asbestos-cement water pipes can pose a health-risk depending on water quality characteristics. Undersized mains are also replaced as part of the City's ongoing water main replacement program. Undersized mains (usually less than 8 inches in diameter) can result in insufficient pressures or excessive head losses during peak demand periods, and are often unable to deliver required fire flows. Pipe improvement projects identified in Chapter 8 and listed in Table 8-7 are included in this CIP item. Prioritization of the replacement projects is based on the age of the pipes, frequency of leaks, and diameter. Some projects are assigned higher priority in order to coordinate with other City capital improvement projects, especially street projects. Duvall Avenue NE Water Main Replacement This project consists of the replacement of a 400-foot section of undersized water main from the intersection of NE 4th Street and Duvall Avenue NE, south along Renton_ChlO CIP.doc 1017104 R. W. Beck 10-5 Chapter 10 Duvall Avenue NE. The work will be perfonned in conjunction with the City Transportation Department's project to widen Duvall Avenue NE. Additional hydrants will also be installed as part of the street widening project. This project is located in the southeast comer of the 565 Zone. SW 27th Street Water Main Extension This project consists of the extension of a new 12-inch water main in conjunction with the Transportation Department's project to extend SW 27th Street (Strander Boulevard SW in Tukwila) from Oakesdale Avenue SW to West Valley Road. The approximate length of the water main extension is 2,200 feet.' This project is located in the southwest comer of the 196 Zone. Boeing Redevelopment New water mains associated with the redevelopment of the Boeng Plant property are scheduled to be installed in two phases. Phase 1 includes 5,250 feet of new 12-inch main in four segments and a pressure-reducing valve (PRV) station. The four pipeline segments and PRV station for Phase 1 are: (1) along Park Avenue N, from Garden Avenue N south to N 8th Street, (2) east along N 8th Street to Logan Avenue, (3) south on Logan Avenue to N 6th Street, (4) a new 16-inch PRY station on N 6th Street, west of the Cedar River, and (5) new 12~inch main between Park Avenue N and Garden Avenue N. Phase 2 includes 5,150 feet of new 12-inch water main along Logan Avenue N from Garden Avenue N south to N 8th Street; between Logan Avenue N and Park Avenue N; from Garden Avenue N east to Houser Way N; and two 12-inch stubs off of Logan Avenue. Phase 1 is scheduled to occur between 2005 and 2008. Phase 2 will likely be completed after 2010. As noted in Table 10-1, the water system improvements associated with the Boeing Redevelopment will be paid from other City funds and will not be part of the Water Utility budget. 10.1.4 Major Maintenance Reservoir Repairs and Exterior Painting The exterior of the West Hill and South Talbot Reservoirs have several rust spots. This project includes will clean, repair, and apply a new protective coating to the exterior of both tanks. In addition, the interiors of all of the City's reservoirs will be inspected in 2006. Emergency Response Water Projects This item is an allowance for unplanned projects or actions resulting from emergencies and unforeseen conditions such as major pipe failures or emergency repairs of water facilities. 10-6 R. W. Beck Renton_ChiD CIP.doc 1017104 CAPITAL IMPROVEMENT PROGRAM· Water System Facilities Security The City's vulnerability assessment was completed in 2003. The City will phase construction of security improvements to its water system recommended in the vulnerability assessment. Rehabilitation of Wells 1, 2, and 3 This project consists of the electrical rehabilitation of the pump motors and starters for the pumps at Wells 1,2, and 3. The project is scheduled for 2008. Automatic Meter Reading Conversion The City is conducting a pilot-scale study for an automatic remote meter-reading system. This project will evaluate the cost of full conversion to the automatic system. Implementation of the project is planned to begin in 2007 and will continue past 2010, so the budgeted amounts do not show the full cost for the automatic remote meter- reading system. 10.1.5 Water Utility Regulatory Compliance Programs The City funds a number of different regulatory compliance programs through its CIP. The regulatory compliance programs include the following CIP projects: • Maplewood Water Rights Compliance • Water System Plan Update • Emergency Response Plan Update • Hydraulic Model and Fire Flow Update • Water Conservation Program Implementation • Monitoring Water Quality at Mt. Olivet Landfill • Water Quality Monitoring and Investigation • Monitoring Cathodic Protection • GIS. and GPS Database Conversion Most of these programs receive a small amount of funding each year from the CIP (typically between $5,000 and $20,000 per year). The level of funding for each program varies from year to year depending on needs. The Water System Plan, which has a DOH-mandated update every six years, is the reason for the higher funding level in 2010. Renton_ChiD CIP.doc 1017/04 R. W. Beck 10-7 CAPITAL IMPROVEMENT PROG"-.I Table 10·1 6·Year Water System Capital Improvement Program ... 2005 ·2010 Project 10 Description 2005 2006 2007 2008 2009 2010 TOTAL Supply and Storage Improvements S-1 Emergency Water Interties with Adjacent Water Districts 200 200 S-2 Highlands 565 Zone 2-m[ Reservoir 400 2,000 500 2,900 S-3 196 Zone Reservoir and Pump Station 200 500 2,000 1,000 3,700 S-4 196 Zone Emergency Power 400 400 800 S-5 Pipe Oversizing Reimbursements 40 40 40 40 40 100 300 Subtotal· Supply and Water Quality Improvements 440 2,440 1,340 540 2,040 1,100 7,900 Water Quality ImJlrovements WQ-1 Maplewood Water Quality Improvement and Treatment Facility 2,000 2,000 WQ·2 Well5A Water Quality Improvement Treatment Facility 400 500 500 1,400 Subtotal· Water Quality Improvements 2,000 400 500 500 0 0 3,400 Water Main Rehabilitation WM-1 Water Main Replacement 1,000 1,000 1,000 1,000 1,000 1,500 6,500 WM-2 Duvall Avenue NE Water Main Replacement 100 100 WM-3 Strander Boulevard SW Water Main Extension 500 500 Subtotal· Water Main Rehabilitation 1,100 1,000 1,000 1,000 1,500 1,500 7,100 Major Maintenance M-1 Reservoirs Recoating, Cathodic Protection and Exterior Painting 100 100 50 50 50 50 400 M-2 Emergenct Response Water Projects 50 50 100 100 100 100 500 M-3 Water System Security 40 40 40 40 40 40 240 M-4 Rehabilitation of Wells 1, 2, and 3 200 200 M-5 Automatic Meter Reading Conversion 200 500 200 200 800 Subtotal· Major Maintenance Projects 190 190 390 890 390 390 2,440 Water Utility Regulatory Compliance Programs RC-1 Regulatory Compliance Programs 120 80 90 90 90 195 665 Subtotal· Regulatory Compliance Programs 120 80 90 90 90 195 665 TOTAL WATER SYSTEM IMPROVEMENTS 3,850 4,110 3,320 3,020 4,020 3,185 21,505 Renton_ChlO CIP.doc 1017104 R. W. Beck 10-9 Chapter 10 10.2 Future Capital Projects 10.2.1 Supply and Storage Improvements 435 Reservoir Improvement The City plans to refurbish or replace its two existing 435 Zone (Highlands) Reservoirs in the future. These reservoirs were constructed in 1942 and 1960, respectively, and while some repairs were made in 1993, more substantive improvements are necessary to address seismic concerns and to rehabilitate the reservoirs. This project is scheduled for 2009-2010. During predesign, alternatives for refurbishing the existing tanks and/or building new storage will be considered. Mt. Olivet Reservoir Upgrade Mt. Olivet Reservoir was constructed in 1954 and is nearing the end of its useful life. - The next interior inspection of the reservoir (scheduled for 2006) will allow the City to evaluate whether this reservoir should be replaced. In addition to having· a new reservoir, replacement would also allow improvements to the reservoir operation, by raising the overflow of Mt. Olivet to match the overflow of North Talbot Reservoir. This would allow both reservoirs to "float" on the zone and improve the hydraulic performance of the 196Zone. This project would have the added benefit of increasing the available storage in the 196 Zone. A new reservoir of the same diameter at the higher overflow elevation would add 1.2 mg of storage. 320 Zone Storage This project would provide additional storage in the Kennydale area of the 320 Zone. In addition to improving system redundancy it would also help serve peak demands in this area, including fire flow. Aquifer Artificial Recharge Study The City plans to have a study performed to evaluate the possibility of artificial recharge of its aquifers to give additional supply during peak demand periods. New Renton Hill Booster Pump Station A booster pump station in the Renton Hill area would pump water from the 196 Zone to the 490 Zone and would provide additional system redundancy. The water mains required for this project are already in place. Fred Nelson Pump Station Improvemen~s The electrical system and the instrumentation and controls of the Fred Nelson Pump Station will be reaching the end of their useful life within the next 20 years. The City 10-10 R. W. Beck Renton_ChiD CIP.doc 1017104 CAPITAL IMPROVEMENT PROGRAM· . will upgrade the station's electrical system and instrumentation and controls when it becomes necessary. 10.2.2 Water Main Rehabilitation Cedar River Crossing This project would construct another crossing of the Cedar River near the point where it discharges into Lake Washington. The new crossing would enhance the ability to deliver water from the downtown area to the northeast portion of the service area. It would also improve system reliability by adding another river crossing. The route and diameter of the crossing have not been studied in detail. This project will be considered in greater detail once other higher priority CIP projects are completed. 10.2.3 Major Maintenance SCADA and Telemetry Improvements The City is considering the addition of meters and telemetry to measure flow at pressure zone boundaries (PRV stations) and for sub-areas of large pressure zones. The benefit of this project would be to collect data that will give a better understanding of how water flows through the system, allow improved water quality management, achieve better water loss measurement, and provide more reliable data to support system hydraulic modeling. Flow Meter Installation and Improved Level Transducers This project would add flow meters at all of the City's reservoirs. It would also replace poorly located level transducers. Many of the City's level transducers are located too close to a pump station, resulting in inaccurate data due to the pressure fluctuations caused by the pump operation. Data from the existing level transducers is not sufficiently accurate to give reliable results for extended period simulations with the hydraulic analysis model. The ability to perform extended period simulations would be helpful for improved analysis of storage and water quality. 435 Zone Redundant Supply This project would install an additional supply feed to the south end of the 435 Zone. This redundant feed would either be a booster pump station from the 196 Zone to the 435 Zone via the Maple Valley Highway, or a new PRV st.ation supplying the 435 Zone from the 565 Zone (through either the King County or City of Renton maintenance yard sites). Pressure Reducing Valve and Miscellaneous System Improvements This involves the design and construction of additional pressure-reducing valves, control valves, transmission mains, distribution mains, and other necessary system improvements for new development and redeveloped areas. The improvements would Renton_ChID CIP.doc 1017104 R. W. Beck 10-11 Chapter 10 be . scheduled to coincide with changes in the system to accommodate the future development. The objective would be to provide better system operation and pressure control. The primary areas for consideration are Earlington and Port Quendal. Table 10·2 Future Capital Projects Project 10 Supply and Storage Capital Projects S-5 435 Reservoir Upgrade S-6 Mt. Olivet Reservoir Upgrade S-7 320 Zone Storage S-8 Aquifer Artificial Recharge Study S-9 New Renton Hill Booster Pump Station S-10 Fred Nelson Pump Station Improvements Water Main Rehabilitation WM-5 Cedar River Crossing Major Maintenance M-6 SCADA and Telemetry Improvements M-7 Flow Meter Installation and Improved Level Transducers M-8 435 Zone Redundant Supply M-9 Pressure Reducing Valve and Miscellaneous System Improvements 10.3 Cost Estimates Planning-level cost· estimates were. prepared for each of the recommended improvements and. are shown in Table 10-1. The accuracy of these estimates can be expected to vary by 30 percent more or less than the actual costs. Because all costs are presented at 2004 price levels, costs in the future must be adjusted to account for the effects of inflation and changing construction market conditions at the time of construction. The cost estimates for water main projects include the following allowances: • 10 percent construction contingency, • 9 percent sales tax, and • 10 percent allowance for engineering, legal, and construction administration costs. (Assumes that engineering, legal, and administration are performed by City staff.) 10-12 R. W. Beck Renton_ChiO CIP.doc 1017104 CAPITAL IMPROVEMENT PROGRAM Cost estimates for more complex capital improvement projects such as reservoirs or pump stations include the following allowances: • 10 percent construction contingency, • 9 percent sales tax, • 20 percent allowance for predesign and design, and • 10 percent allowance for administration, permitting, special inspections, and legal. These cost estimates have been prepared as guidance in evaluating and prioritizing capital improvement projects. The costs are based on information available at the time the estimates were developed. The [mal costs of each project will depend on actual labor and material costs, site conditions, productivity, competitive market conditions, final project scope, implementation schedule, and other variable factors. As a result, the final construction costs will vary from the estimates shown in Table 10-1. Because of these factors, project feasibility and funding needs should be reviewed carefully prior to making specific financial decisions to ensure the projects remain feasible and to budget adequate funds. The cost of the planned projects should be estimated using project-specific data in order to establish the project budgets. Renton _ Ch 10 CIP. doc 1017/04 R. W. Beck 10-13 Chapter 11 FINANCIAL PROGRAM This chapter describes the Water Utility's financial condition and contains a projection of financial results through 2015. The projection reflects the proposed Capital Improvement Program presented in this Water System Plan. The past four years' financial history is reviewed, followed by a discussion of available capital funding sources and a projection of water utility revenues and expenditures. Projected rate impacts are presented, along with a comparison of current water rates with neighboring water utilities. 11.1 Water Utility Historical Financial Performance The City accounts for its water activities in a number of separate funds. These include: • Fund 401 -Fund 401 is the Operating Fund for the City's water utility. Revenue sources for this fund are water sales, inspection/approval fees, interfund revenues,· investment interest, Skyway payment, and miscellaneous revenues. Operation and Maintenance (O&M) expenses, debt service for Public Works Trust Fund (PWTF) loans, taxes, and transfers to the Construction Fund are paid from Fund 401. II Fund 421 -Fund 421 is the Construction Fund for the water utility. Funds accumulated in Fund 421 include transfers from the Operating Fund, interest, system development charges, proceeds from revenue bonds, proceeds from PWTF loans, and special assessment district revenues. • Fund 451 -Fund 451 is the Bond Fund for the water utility. This fund's revenues are typically transfers from the Operating Fund, which are used to pay for the water portion of debt service on the City's revenue bonds. • Fund 461 -Fund 461 is the Bond Reserve Fund for the City'S water, sewer, and stormwater utilities. Accumulation of a bond reserve is required by the ordinances that authorized the issuance of the City's water, sewer and stormwater revenue bonds. As of December 31,2003, there was $1,596,127 reserved for the water utility in Fund 461. Renton_Chll Financial Program.doc 10/4/04 Chapter 11 Table 11-1 shows sources and uses of funds for the combined Operating Fund (Fund 401) and the Bond Fund (Fund 451) from 2000 to 2003. Uses of funds are greater in 2001-2003 due to large transfers to the Construction Fund (Fund 421) and a transfer to the newly created Bond Reserve Fund (Fund 461). Table 11·1 Historical Results of the Operating and Bonq Funds (Funds 401 and 451)1 2000 2001 2002 2003 Notes Sources of Funds Operating Revenues $7,894,034 $7,850;112 $7,979,224 $8,583,394 Inspection/Approval Fees 75,693 64,967 52,348 33,901 Revenue Bond Proceeds 0 0 1,314,460 0 Interfund Revenues 311,649 309,867 247,575 281,785 Investment Interest 239,427 173,802 55,160 55,270 Skyway Water and .Sewer District Payment 37,874 37,874 37,874 37,874 Miscellaneous Revenues 87,694 69,137 80,310 96,299 Other Financing Source 4,490 0 0 0 Total Sources of Funding $8,650,861 $8,505,759 $9,766,951 $9,088,523 Uses of Funds Operations $1,599,031 $1,627,618 $1,654,578 $1,669,280 Administration 98,600 94,809 93,298 95,476 Maintenance 2,512,894 2,584,488 2,617,118 2,753,526 Inventory Purchased 183,470 204,507 241,984 283,249 Debt Service (PWTF) 298,745 180,608 58,194 83,016 Other Debt Service Costs 851 16,026 113,490 751 Debt Service (Bonds) 1,784,120 1}87,675 3,032,569 2,118,013 Taxes 872,143 817,957 793,153 893,544 Transfer to Construction Fund (Fund 421) 99,807 1,063,158 1,392,000 1,000,008 Transfer to 215 for LTGO 77,650 77,650 77,700 0 Finance Bad Debt Expense 1,206 183 0 0 Total Uses of Funds $7,528,517 $8,454,679 $10,074,084 $8,896,863 Sources less Uses $1,122,344 $51,080 ($307,133) $191,660 1. Source: City-provided Statement of Revenues, Expenses & Fund Balance for Funds 401 and 451. 2. Operating revenues include rate revenues plus water installation fees from Fund 401 and rate revenues recorded in Fund 451. 3. Interfund revenues are soft-capital transfers for labor & benefits of City employees working on the Water Capital Improvement Program (CIP). Minor amounts are transferred from Street Maintenance and Surface Water Maintenance. 4. Miscellaneous revenues include rental fees paid by communications companies for leasing antenna space in reservoir sites. 5. Inventory purchased includes pipes, asphalt and other materials needed for maintenance work. 6. Transfer to Construction Fund (Fund 421) for annual CIP expenditures .. 7. Transfer to General Govemmental Miscellaneous Debt Service (Fund 215) for the final payment on debt service related to a golf course. 8. The negative balance is attributed to a one-time refunding of debt in 2002. The cumulative balance from operations in 2000-2003 is $1,057,951. 2 3 4 5 6 7 8 The majority of operating revenues are from water sales. Uses of funds include O&M expenditures, debt service, taxes, and transfer to other funds. As of December 31, 2003, the Operating Fund reserve was $519,733. 1.1-2 R. W. Beck Renton_Chi! Financial Program.doc 10/4/04 FINANCIAL PROGRAM· . 11.2 Available Funding Sources 11.2.1 Federal, State, and County Sources Federal, state, and county programs identified as potential funding sources for capital improvements are summarized in the subsections that follow. The following paragraphs are intended as a general description of potentially available funding sources. A specific projection of funding sources for the Capital Improvement Program described in Chapter 10 follows this general discussion. Public Works Trust Fund The Public Works Trust Fund is a low-interest revolving loan fund that is administered by the Washington State Public Works Board. The PWTF program offers four separate loan programs, as described below. Additional information f?r all PWTF loans is available from the Public Works Board's Web site, www.pwb.wa.gov. • PWTF Construction Loan. The PWTF construction loan is the most commonly used of the four PWTF loan programs. Eligible projects include repair, replacement, rehabilitation, reconstruction, or improvement of eligible public works systems to meet current standards for existing users. With recent revisions to the program, growth-related projects consistent with 20-year projected needs are now eligible. PWTF construction loans are currently available at interest rates of 0.5 percent, 1 percent, and 2 percent, with the lower interest rates given to applicants who pay a larger share of the total project costs. The loan applicant must pay a minimum of 5 percent toward the proj ect cost to qualify for a 2 percent loan, 10 percent for a 1 percent loan, and 15 percent for a 0.5 percent loan. The useful life of the project determines the loan term, up to a maximum of 20 years. Applications are accepted on an annual basis in May of each year. A total of $10 million is available per jurisdiction per biennium. All projects require legislative approval, and if a loan is awarded, the loan agreement is typically executed in the year following the application. • PWTF Preconstruction Loan. A PWTF preconstruction loan covers expenses related to preliminary engineering, design engineering, bid document preparation, right-of-way acquisition, and environmental studies. Eligible project types, interest rates, and local match requirements are the same for a PWTF preconstruction loan as for a PWTF construction loan. The loan term is a maximum of five years, which can be extended up to 20 years with proof of construction funding. Applications are accepted on an open cycle subject to availability of funds. • PWTF Planning Loan. This loan can provide up to $50,000 toward project activities including environmental studies and updates to existing capital facilities plans. Loans are currently offered at a 0 percent interest rate and no local match is required. The application cycle is ongoing subj ect to availability of funds. Renton_Chi I Financial Program.doc 1014104 R. W. Beck 11-3 Chapter 11 • PWTF Emergency Loan. A PWTF emergency loan can provide up to $500,000, currently repayable at an interest rate of 4 percent. The useful life of the project detennines the loan term, up to a maximum of 20 years. Applications are accepted on an open cycle subject to availability of funds. The City has obtained a PWTF construction loan totaling $5,150,000 for the Maplewood Water Quality Improvement and Treatment Facility. The City is currently projecting that it will receive half of the proceeds in 2004, and the remaining proceeds in 2005. Drinking Water State Revolving Fund The Drinking Water State Revolving Fund (DWSRF) was established in 1996 and is jointly managed by the Washington State Department of Health and the Public Works Board. Eligible activities include: (1) addressing existing water system problems that may result in non-compliance with Safe Drinking Water Act (SDWA) standards, (2) replacing aging infrastructure and/or property acquisition needed to maintain compliance with the SDW A, (3) providing reservoirs, distribution of finished water, or clearwells that are part of a treatment process, and (4) planning and design costs directly related to DWSRF eligible projects. Currently, DWSRF loans are available at interest rates ranging from 0.5 percent to 1.5 percent, and a local match is not required. The useful life of the project determines the loan term, up to a maximum of 20 years. Loan applications are accepted annually, generally in the. early summer. Additional information is available at www.pwb.wa.gov. Community Economic Revitalization Board Managed by the state Department of Community, Trade and Economic Development, this program provides grants and loans to fund public facilities that -result in specific private sector development. Eligible projects include water, wastewater, flood management, planning, solid/hazardous waste, and transportation. Additional information is available at www.cted.wa.gov. Community Development Block Grant Program King County annually receives Community Development Block Grant (CDBG) funds from the United States Department of Housing and Urban Development (HUD). Renton is a political subdivision of the county and is eligible to receive CDBG funds. To be eligible for CDBG funds a project must meet one of three national objectives: 1. Activities benefiting low-and moderate-income persons 2. Activities which aid in the prevention or elimination of slums or blight 3. Activities designed to meet community development needs having a particular urgency It is sometimes possible to receive a limited amount of grant funding for water utility infrastructure if the benefits to low-and moderate-income residents can be established. 11-4 R. W. Beck Renton_Chi I Financial Prognundoc 10/4/04 FINANCIAL PROGRAM· . Additional information on CDBG funds is available at www.metrokc.gov/dchs/csd/ HousingIBlockGrant.htm. Department of Ecology A limited amount of funding for the development of groundwater and wellhead protection programs is available from the Washington State Department of Ecology (Ecology), which sponsors three grant and loan programs: (1) the Centennial Clean Water Fund, (2) Federal 319 Programs, and (3) State Revolving Fund Loans. Applications are accepted on an annual basis between January and early March. More information is available from Ecology's Web site, www.ecy.wa.gov/programs/ wg/links/funding.html. 11.2.2 Water Utility Revenue Sources System Development Charges Annual revenues from system development charges are estimated at $470,000 per year. The estimate of $470,000 per year in revenues is based on an average of historical system development charges. It is important to note that this level of revenues reflects a growth rate lower than that projected in this Plan, providing a conservative financial planning basis. Interest Income The City earns interest on reserves in its various funds. Interest income is typically applied toward capital expenditures. Special Assessment District The City has used special assessment districts in the past to fund infrastructure that benefits localized areas. Capital Reserves The City maintains a separate Construction Fund (421 Fund) dedicated to water utility capital expenses. At the beginning of 2004, the Construction Fund reserves were $1,150,700. Rates and Rate Funding Each year the City transfers funds from the Operating Fund to the Construction Fund. The amount of this transfer is set so that capital improvements are funded from a combination of sources, including rate revenue, other water system revenues, and debt. The minimum transfer amount is estimated at $700,000 in FY 2005 and for financial planning purposes is escalated by 2.5% per year thereafter. If the Operating Fund reserves are greater than the minimum transfer amount, an additional amount may be transferred. Renton_Chi I Financial Program. dec 10/4104 R. W. Beck 11-5 Chapter 11 Revenue Bonds In the past, the City has issued revenue bonds to fund part of its utility Capital Improvement Program. In this analysis, it is assumed that bonds will be issued every other year, based on the schedule shown in Table 11-2. It is further assumed that bonds would be issued with a 20-year repayment schedule, and with interest rates ranging from 5 percent to 7 percent. Table 11~2 Projected Water Utility Revenue Bond Issuances Year Issue Amount 2004 $5,600,000 2006 $2,500,000 2008 $5,100,000 2010 $4,900,000 2012 $4,900,000 2014 $5,400,000 Debt service schedules for current revenue bonds, current PWTF loans, projected revenue bonds, and projected PWTF loans can be found in Appendix Q. 11.3 Water Utility Financial Plan 11.3.1 Key Assumptions The financial plan is based on City-provided budget assumptions for 2004 and a number of assumptions for 2005 and beyond. The assumptions include the following annual escalation factors for inflation: • General inflation rate: 2.3 percent • Supplies: 2.3 percent • Labor: 4.0 percent • Capital improvements: 3.0 percent Table 11-3 summarizes the key assumptions used in the financial plan. Annual growth rates in customer accounts are projected to be 1.9 percent for 2005, 1.3 percent until 2009, and 1.4 percent from 2010 through 2015. Annual growth in water consumption is projected to be 2.4 percent for 2005, 1.6 percent until 2009, and 1.8 percent from 2010 through 2015. Projected growth rates in customer accounts and water consumption were developed to match the growth projections contained in Chapter 4 of this Water System Plan. The consumption projections are based on the assumption that the City will implement the conservation measures described in Chapters 4 and 5 of this plan. Annual projections of customers and consumption can be found in Appendix Q. 11-6 R. W. Beck Renton_Chi I Financial Programdoc 10/4/04 FINANCIAL PROGRAM· . Table 11·3 Summary of Key Assumptions FY 2006· FY 2010· FY2005 FY 2009 FY 2015 Average Annual Growth Rates Customer Growth Single-Family 1.6% 0.9% 0.9% Seniors 1.6% 0.9% 0.9% Multifamily 3.6% 3.6% 3.6% Commercial 2.3% 2.3% 2.3% Industrial 2.3% 2.3% 2.3% Wholesale 0.0% 0.0% 0.0% Private Fire 2.3% 2.3% 2.3% Total System 1.9% 1.3% 1.4% Consumption Growth Single-Family 0.6% 0.4% 0.5% Seniors 0.6% 0.4% 0.5% Multifamily 1.6% 3.1% 3.2% Commercial 4.6% 1.8% 1.9% Industrial 4.6% 1.8% 1.9% Wholesale 1.0% 1.0% 0.9% Private Fire 4.6% 1.8% 1.9% Total System 2.4% 1.6% 1.8% Escalation Factors Other Revenues 0.0% 0.0% 0.0% Labor 5.7% 4.0% 4.0% Benefits 11.0% 9.8% 9.0% Supplies 2.3% 2.3% 2.3% Other Operational Expenses 0.0% 1.0% 1.0% Transfers 3.0% 3.0% 3.0% Other (Inflation Rate) 2.3% 2.3% 2.3% CIP Inflation Factor 3.0% 3.0% 3.0% 11.3.2 Projected O&M Expenses Projected operation and maintenance (O&M) expenses for 2005 through 2015 are based on budgeted 2004 expenses provided by the City, and have been increased at the appropriate escalation rate as shown in Table 11-3. The projected average annual increase for all O&M expenses from 2005 through 2015 is 3.99 percent. The Maplewood Treatment Facility is projected to begin operating in 2006, and expenses for chemicals are estimated at $8,762 in 2006, with subsequent annual escalation for inflation. Renton_Chi I Financial Program.doc 10/4/04 R. W. Beck 11-7 Chapter 11 11.3.3 Projected Capital Expenditures The City's six-year water system Capital hnprovement Program (CIP), shown in Table 10-1 in Chapter 10 of· this Water System Plan, contains projected capital expenditures from 2005 through 2010. Projected CIP expenditures from 2005 through 2010 are $22,786,028, which includes annual inflation of 3 percent. CIP expenditures for 2011 through 2015 are projected to be $3,000,000 per year in 2004 dollars. 11.3.4 ·Projected Operating and Bond Fund Results Table r 1-4 summarizes the sources and uses of funds for the combined Operating Fund and Bond Fund. Water rate revenues will continue to provide the majority of Operating Fund revenues. Water rate increases were projected to be required in order to fund the projected operating and capital expenditures, to meet the debt service coverage ratio target, and to meet the operating reserve level target. The official statements for the City's revenue bonds require that the debt service coverage ratio exceed 1.25. The Water Utility has established a minimum target of Operating Fund reserves equal to 14.0 percent of the annual total ofO&M expenses, taxes, PWTF debt service, and transfers to the Bond Reserve Fund. The projected water rates set in this financial plan are based on the assumptions described above. In particular, the projected rate of water system growth is a key assumption that affects the outcome of these financial projections. If actual growth rates are less than what is projected in Chapter 4 of this plan, water utility revenues will decrease due to reduced system development charge revenues and reduced water rate revenues from new customers. This may affect the ability of the City to complete the capital improvements as sqheduled in this Water System Plan, or it may require water rate increases greater than those projected in this Water System Plan. 11.3.5 Projected Construction Fund Results The primary sources of funds. for capital improvements will continue to be a combination· of Operating Fund revenues, system development charges, and debt proceeds which are repaid by water rate revenues. Table 11-5 summarizes the sources and uses of funds for the Construction Fund. 11-8 R. W. Beck Renton_Chi I Financial Programdoc 10/4/04 FINANCIAL PROG~ Table 11-4 Projected Sources and Uses of Funds for the Operating and Bond Funds 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Operating Fund (401) and Bond Fund (451) Beginning of Year Balance $2,293,035 $2,442,546 $2,346,600 $2,693,860 $2,801,596 $3,190,087 $2,786,656 $2,985,625 $2,398,611 $2,514,374 $2,031,267 Sources of Funds Revenue at Present Rates $8,718,048 $8,849,793 $8,923,281 $9,068,079 $9,216,130 $9,367,518 $9,522,334 $9,692,494 $9,866,683 $10,045,011 $10,227,590 Future Revenues Irom Rate Adjustments 207,490 426,263 652,406 894,592 1,150,181 1,419,845 1,704,293 2,006,716 2,042,780 2,079,701 2,117,501 Investment Income 42,190 86,023 134,464 144,634 155,421 162,002 165,740 166,511 166,034 160,770 144,273 Other Revenues 622,829 624,829 626,875 628,968 631,109 633,300 635,540 637,833 602,304 604,703 607,157 Total Sources of Funds $9,590,557 $9,986,907 $10,337,026 $10,736,272 $11,152,841 $11,582,664 $12,027,907 $12,503,554 $12,677,801 $12,890,184 $13,096,522 Uses of Funds Operating Expenditures $6,315,878 $6,578,380 $6,833,406 $7,103,925 $7,388,255 $7,687,257 $8,001,849 $8,334,478 $8,653,726 $8,990,001 $9,344,430 Debl Service 2,025,167 2,377,678 2,423,790 2,552,224 2,609,439 3,060,887 3,024,761 3,495,883 3,068,653 3,507,886 3,506,459 T ransler to Bond Reserve Fund 0 110,696 0 222,968 0 453,662 0 439,426 0 16,432 787 T ransler to Construction Fund 1,100,000 1,016,100 732,570 749,419 766,656 784,289 802,328 820,781 839,659 858,971 878,728 Total Uses of Funds $9,441,045 $10,082,853 $9,989,766 $10,628,536 $10,764,351 $11,986,095 $11,828,938 $13,090,568 $12,562,038 $13,373,291 $13,730,404 End of Year Balance $2,442,546 $2,346,600 $2,693,860 $2,801,596 $3,190,087 $2,786,656 $2,985,625 $2,398,611 $2,514,374 $2,031,267 $1,397,384 Rate Increase 2.38% 2.38% 2.38% 2.38% 2.38% 2.38% 2.38% 2.38% Debt Service Coverage Ratio (Requirement = 1.25) 2.01 2.03 2.02 1.96 1.97 1.67 1.75 1.52 1.71 1.43 1.38 % of Expenses in Reserve (Minimum = 14%) 37.8% 33.0% 37.1% 36.1% 40.8% 32.5% 35.5% 26.1% 27.7% 21.6% 14.3% Renton~Cht t Financial Program.doc 10/4/04 R. w. Beck 11-9 FINANCIAL PROGRAM Table 11·5 Sources and Uses of Funds for the Construction Fund 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Construction Fund (421) Beginning of Year Balance $1,729,875 $2,985,760 $2,702,148 $352,657 $3,361,962 $20,652 $2,435,769 $83,612 $2,541,321 $2,279 $2,769,665 Sources of Funds Transfer from Operating Fund $1,100,000 $1,016,100 $732,570 $749,419 $766,656 $784,289 $802,328 $820,781 $839,659 $858,971 $878,728 Interest Earnings 31,385 75,587 60,792 73,923 67,316 48,884 50,137 52,237 50,619 55,163 55,845 System Developmenl Charges 470,000 470,000 470,000 470,000 470,000 470,000 470,000 470,000 470,000 470,000 470,000 New Revenue Bonds 0 2,500,000 0 5,100,000 0 4,900,000 0 4,900,000 0 5,400,000 0 Maplewood PWTF Loan 2,575,000 0 0 0 0 0 0 0 0 0 0 Special Assessment District 15,000 15,000 15,000 15,000 15,000 15,000 15,000 15,000 15,000 15,000 15,000 Total Sources of Funds $4,191,385 $4,076,687 $1,278,362 $6,408,342 $1,318,972 $6,218,173 $1.337,465 $6,258,019 $1,375,278 $6.199,135 $1,419,573 Total Uses of Funds $2,935,500 $4,360,299 . $3,627,854 $3,399,037 $4,660,282 $3,803,057 $3,689,622 $3,800,310 $3,914,320 $4,031,749 $4,152,702 End of Year Balance $2,985,760 $2,702,148 $352,657 $3,361,962 $20,652 $2,435,769 $83,612 $2,541,321 $2,279 $2,769,665 $36,536 :-- Renlor ~', II Financial Program. doc 10/4/04 R. W. Beck 11-10 FINANCIAL PROGRAM· . 11.3.6 Water Rates Existing Rate Schedule In 1994 the City implemented an inverted block rate structure for single-family residences and duplexes. The City implemented a 3 percent rate increase in 2004. Prior to the 2004 rate increase, the City's last rate increase was in 1996. The two-tiered inverted block rate structure has a higher rate for consumption exceeding 1,000 cubic feet per month. The first 1,000 cubic feet per month is billed at $1.81 per 100 cubic feet. Consumption greater than 1,000 cubic feet per month is billed at $1.94 per 100 cubic feet. All other customers are billed at $1.81 per 100 cubic feet. The current rate structure is summarized in Table 11-6. Table 11·6 Current City of Renton Water Rate Schedule Meter Size Monthly Meter Charge %" 1" 112" 2" 3" 4" 5" 6" 8" 12" Fire Protection Meters Base Charge $10.82 $13.54 $17.36 $30.33 $89.82 $129.83 $194.77 $270.53 $389.55 $541.06 $3.40/meter inch Usage Charge $/ccf Customer Type Single-Family Residences and Duplexes All Other Customers o . 10 ccf/month over 10 ccf/month $1.81 $1.94 $1.81 $1.81 Note: The rate schedule shown in this table applies to customers inside the city limits. A 50% rate surcharge is applied to customers outside the city limits. The City'S inverted block rate structure for single-family residences and duplexes is considered to be a rate structure that promotes conservation. The City regularly conducts water rate studies and in its next water rate study will evaluate, in conjunction with other rate-making goals, whether the conservation focus of its rate structure should be enhanced. Renton_Ch!! Financial Program doc 10/4/04 R. W. Beck 11-11 Chapter 11 Projected Rate Increases As shown in Table 11-4, annual 2.38 percent rate increases are projected from 2005 through 2012, and further rate increases from 2013 though 2015 are not anticipated. For the purposes of this Water System Plan, projected rate increases are specified as across-the-board percentage increases applicable to all customers. This financial , analysis does not include a cost-of-service analysis, which would be used to define how rate increases are to be spread among the City's water utility customers. The City periodically conducts cost-of-service analyses. For financial planning purposes, Figure 11-1 shows a projected typical single-family residential monthly water bill. The projected monthly water bill is based on a customer with a 3/4-inch water meter and consumption of7.50 ccfper month. $30.00 /"" / / /' $29.00 $28.00 $27.00 $25.00 /' ~ Projected Rate Increases: I 2005·2012: 2.38% per year V $24.00 $23.00 $22.00 $21.00 $20.00 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Figure 11·1: Projected Single·Family Residential Monthly Water Rates for 2004 • 2015 (assuming %·inch meter, with 7.50 ccf of consumption per month) 11-12 R. W. Beck Renton_Chi I Financial Program.doc 10/4/04 FINANCIAL PROGRAM 11.3.7 Comparison with Other Utilities Figure 11-2 provides a comparison of typical monthly residential water bills, based on a %-inch meter and consumption of 7.50 ccf per month. As shown, four of the eight utilities included in the comparison have seasonal rates that are higher in the summer months. Renton's rates fall in the mid-range among the eight utilities shown. Bellevue •••••••••••••••••••• $36.8 Tukwila-Summer ••••• ~ ••••••••••••• $a4.35 i ! Seattle -Summer .................. $29.68 ! Coal Creek Utility District ••••• ~ •••••••••• $29.20 Tukwila-Winter ................ $28.13 Seattle -Winter •••••••••••••• $25.88 I Renton ••••• ~ ••••••• $24.40 CedarRiverW&SDistrict •••••••••••• $21.40 Soos Creek W&S District -Summer •••••••••••• $21.25 Soos Creek W&S District -Winter •••••••••• $19.13 Kent -Summer .......... $16.02 Kent -Winter ••••••• $12.72 $0 $5 $10 $15 $20 $25 $30 Figure 11-2: Single-Family Residential Monthly Water Rates for 2004 (assuming %-inch meter, with 7.50 ccf of consumption per month) $35 $40 Renton_Chll Financial Program.doc lOnl04 R. W. Beck 1l-13 " , :"( <,', "'''--'' , " , \,.. ~ • f' <"" • J,' ,'c' .. . -:; -", ") ). d. ./ '); ,J -.'l' (r. '" .~ • • ,' "'. ,,}"'< ,0,. • " > . J:~ , -{ .. ' , ~, ,'/- '.r; '~. ~,.', '.' ~', ) ."/ ',' \. ,. ' . ~ ., .. , " ,.",'; , ,', _ .......... ,,>c'l .", .. 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"\' . ,,', : .'; .. ~ - " ,~ " .:/ ~. . .,-i. ••• '"J :1 . . ~. . ~j;.' ',:' ·'c .• ?, ., " .': 'j, J ; . ',,:' '--;,.' ..... " '---;.. ~ ,"\ . .J .' '.~ '." "/ ~ , '.', -~ ". ,.-. . -~~.,~ '. t'>'~\,::~~ '·l~·-:· : .. -.:.~ : .. "'; .... '''''~, .. ~: ~,.::·j··:~·~h~'·;i ... ' :. "'~" .:[ • ,\. .~ ".J 'r '" ~. 't ... .r ~,l;.;'~' '_" -"'~;I • "-", . • " '''>l-'~ ~-i''' J ".~. '.' < . ~pp~.ridi)( ~as' n6J pn~ted: ~n \hiS'cop'y'of:t'he, Water'$y~ieryi' R'I~n~:Jo+~ceiv~,'an "ele~tronic 'c~pY"~, .:: ..... -"~. ,.·J:1 .1".::.:,1 .~.; -;..-,' ....• :'''\";j:~.'' ""_'-~'""':'~'''-; \ ~_.~,.:.:'._) .'./;/.I"'''~'~'~', . ,.', " • '_:"'. • '; I " ". ,of the Municipal :Code; 'ple,ase contact'J::.D . Wilson,:' CityofRe'rlton,:atr( 425),43Q~l295/:~ " . '·'P':~'::" .. :, ,,::. ',... '. ,. ."", (,.,'..., ",' .' ':" :" '" '."' .. );;. /"'. "'L' ,<.,,' '. "'c' ' .... •. ~" ,:. /,~ ,,', r", _ .. ".;" .. : '~ . "" , '1."".' '.. :,,' ;1. ," <,' . ..,' '-. , , ,~ ,\" , ~ ., ' ..... , : ,:"> ' <:; , ';':" .i ,.:" ~ : ' ... <~ :.~~,': ~ '. - .., .~I > • ~-' ' ':..f. '.f' .'" "'" ,,; .-.. ,/,-' I .•. " ';,r'.:-- ',. ',' '", ..• ,1, -; ). ',f'.,' , ~" ~.' . ,', \ ;;.' .'" "". " 1, , '~: > ,,~, ;~ ~.. ". .,., J' . }'. ~ .' / '--,;',,:J _' " " ,~ :'-::,' "" ~' . \,~'. ' ,":-;. .~ .. , '. .-: '.~ '. ,I . ' . ", ~ ~_ ~ " : t ",,; t ~ , ',\ .. .;;, ',..:. ,;>~ .:, '\. '-' ,>-/ >' " c,~ , ", -r~"_> . ;' .,,; , .... :, ':.' ',:: ·r .. , '.'-'1-' • '/ ,1 '\'" :-,. , ,'; , , , , "') .'"""' " ' " .. ", , l~ . -..1' _.,,' ,.' [., ,\ ""::. .. 'c .•.. -'<'.' ,.,. ,". "' , "." ,~ -, ,\'" .. .'.-'., , ~'. \,', , ~ '; , . ~: ' I, " , , " ", ,',; : .. ': " .. ' {',.-" " (-" \1,' r.-",' ,; '.' , .' .... : " "' . ~ . -{-\ ',; CITY OF RENTON Water System Plan Figure No.1 EXISTING WATER SYSTEM e UTILITY SYSTEMS .... Planning & Technical Services ~ R. MacOnie, D. Visneski July 2004 o 1500 3000 I ' I l:lH,OOO ~ 196 Pressure Zone c::==J 300 Pressure Zone c=:J 320 Pressure Zone l J 350 Pressure Zone ~--~l 370 Pressure Zone c:==J 395 Pressure Zone ,=~:::--l 435 Pressure Zone c::==J 490 Pressure Zone r::::::::J 495 Pressure Zone r~2':"~J?1 565 Pressure Zone ~ 590 Pressure Zone 181 Metered Intertie 4 PRY Station e Distribution System. Water Quality Sampling Point Municipal Boundaries \/l/ESi /-//LL CEDAR RIVER PIPELINE (MAX WS 520. MIN WS 450) rn Cl ~ J: (!) I w o c::: z o ::iE '~J 2'~1:-- .' "PMp) "(p LAKEHIDGEJBRYN MAWR ~/IG;HLA/vDS '" c: N ad Z o Z :::J ... -..1. ~ r---- HIGHLANDS ELEVATED TANK (MWSS65) 1:.1 .... ~,~,S.L ...J \t INTERTIE ~ 1: I' ........ ~ ...... ~ .. ., .. ~::~.,~~mff~~~~~~ !Ii i C'!;!WiJj,_ ; "f c::: t- =~ ~ z (p) I' 6 6 r J: ::iE l 2/ \-"~7 \,- n~g;:j~I~bTdDl;'lll:fl!'{p~ 2,200 "p(~) TUKWILA INTERTIE (MWSJ80) ~ 2.400 "PM m_ \$1' sow lAKE KENT INTERTlE IMWfS400) 1"':\'F M "PMI~ ,,;;72,800 \?jl ri.? 'I "PM I~ a::: ...J ...J W ~ c::: N ...J ...J W ~ tT • ..c. a::: <"l CO ...J ...J ...J W ~ ...J W ~ ~f I Ol ...J ...J W ~ I <"l ...J ...J w>-~m c j 2,200 j ~200 j 2,200 j ',500 J 1,200 j ~ Cpr Cpr (pr Cpr cpr (f 5 Dlo EJ P (p RESERVOIR PUMP WI SIZE IN MG \{ $ PRV METER - 1,500 "PM PRESSURE ZONE WI GRADE LINE MT OLIVET RESERVOIR (MWS 186) ~ W '1)1 ~~ Ici~OS '------ 4,800 "PM p .... N .... ...J ...J ...J ...J W W ~ ~ 4,350 "PM p ..... ...J ...J W ~ ~ c ~ en p 2,000 "PM RC:>LLI/VG; HILLS & lALBC:>T HILL ~ o o ~ W ...J Il. ~ Cl o ~ W ...J Il. ~ -4,000 ~ooo r-r ~ v ROLLING HILLS ELEVATED TANK (MWS5aO) b ~". CD ...J C ~~ t-p ROLLING HIL:.i o RESERVOIR z ~r:: (MWS 04fK) •• ~ 'if _'~l.:I. ~~T'- I I b t-o CD ~ RESERVOIR ~'5 TAlBOT HILL ~'f (MWS350) CD ...J ~ ci z ci~: I~: r-- ~ ci rn 4,740 [4.300 p~" (I/P" NORTH TALBOT RESERVOIR (MWSl96) :re' III .T ..... : 5.0 MAPLEWOOD CLEARWELL (MWS70) ~ _ 0.25 •• 700 MrPM JJ w w z :.::: 0 c::: w ct c::: u.. I-' 44\ / .. """';';=r"=';;;;;;;;o; RIVER & JIl *11 m SPRlNaBROOK SUPPLY (MWS1&6) fY FIGURE 2 EXISTING HYDRAULIC PROFILE e CITY OF RENTON Water System Plan Figure No.3 Service Area / Adjacent Systems UTILITY SYSTEMS Planning & Technical Services R. MacOnie, D. Visneski July 2004 o 1500 3000 1:18,000 ~ ~ ~ Renton Water Service Area Future Renton Water Service Area (Upon Annexation) Adjacent Water Service Areas Municipal Boundaries r • c.rtograplrf by. SLXhaIli Vesuwan s.\~sIsucI1atn~rojects\ob'll\gen.c"'1' jnd.ai ( -.... \"/-1 / \, ClfYOFTACOMA WATERSHED " "' , '-.-.....,-~ .... ,-.-.-'--...-.-.. l " ... _ .... - o CI o (:, o ~ \. l)~C: .' .. " .. " 0 0 Cl 0 Q, • 0 0 Q 'tJi .. ~m~ . C) \' r ~. () . " .. b . Generalized Comprehensive Plan Land Use c::::::::J Unincorporated Urban Area c::::::::J Rural Area C=::J Forest Production District Area c::::::::J Agricultural Production District Area c::::::::J Park & Open Space c::::::::J Incorporated Area ~ 1998 Urban Growth Area Line ~ Salmon Bearing River Source: King County Department of Development and Environmental Services ( DOES) This map is intended for planning purposes only and is not guaranteed to show accurate measurements. ® King County 654 3 2 0 6 Miles 1:300,000 February 1999 ", ' , ,7. . ~; ".> • ,,-.' .... :;.' c ,,' . , .'. : .... -... :. .,''1-,,: .... ~ . " ( . -, ,:,.,' j" '. ,I,', /' ":':.' ,,'~. ( ~, . .. '-;:- "-i; ','. -""" ~ .'.' .; .', " ' .. ' ' .~ ' .. . ' , " \ ') ," (, i· .... 'i ,:' ".; I~ ': . ", ":-" . '< -,' .: .. :'. ,-", -, -'.' '.,< , " " ' .) ~ ~/ .. , ~ ..... ,. ~,' "' , ; ~ .~ > .-,-" '" '.;: ,.-,' ,:-,.' <, J-' ' /. .' .. -. , .. ,f \, " I . :': .• /-,- . " ,.l '" ~'.' ,.~ , \.,-.,' ", '; .. ' ", . ~... . ,~ -'", " ." "-,:- ,.,( : ' .. ~. , ,j " " "<. ,., r, , ,,'> >~}\p<pEfn~i>{I;i:::; .'" : .:'.". 'i'-. , , '. \.\..-' ". , .. ' . • .I' \~ .. " " " --..... :. ,,' " ' " ( - ).' ;( : ,,:.,~. ~ ~ ~ . . • '!, ,'~- ~ /'. ,>', .' I. , >' ,..>-•• . , . ...... ;." , -'{<' r, ' . " !,' . " .>, ""',.," ,,'> '. , f,,; . ~ .' .-,." .... ':'" ..;" ,.-.; --, . \.: ." ".- ,;:' .' .' Co'" 'J " .' . ',f ~ ~ .. (, :.' "":' .<;' .,,:' ...... '; "',;. >.( ".-" " ~':' < .. ' :/ ' , ""J,c',' ,:,.-;" '.':: ,1'.' _ ", '" <~' , ;" • " .~ 1 ',' / i,.' ,; '~.;' '''.' '. , -. ',' ~-' . ,-~ ,t',' , ; , , . ~. ',' . r ";", . i, "c, .,' ., '.'.' .;,' -; ~ " .1.-',; .:--.' .' -'." ........ '., ' ,.' > , ~ '.-, I " /. . '. ,',~ ,.\, Appendix K BIBLIOGRAPHY City of Renton Planning Documents and Studies A Report on an Engineering Investigation of the Municipal Water System, City of Renton, Cornell, Howland, Hayes & Merryfield, October 1965 Advance Planning Study Report Rezone. Valley Parkway SW. SW 27th St.. City of Renton, URS,January 1982 Analysis Report for the City of Renton Cedar River Valley Aquifer Test, City of Renton, RH2 Engineering, 1987 Black River Office Park. Final Environmental Impact Statement, City of Renton, R W. Thorpe and Associates, April 1982 Boeing High Pressure Water Distribution System Analyses, RH2 Engineering, P.S., August 1989 Boeing Renton Comprehensive Plan Amendment Draft EIS, City of Renton, May 2003 City of Renton 2004 Annual Budget, Renton Municipal Budget, December 2003 City of Renton Comprehensive Plan. 1995 (adopted) and 2004 (draft) Citv of Renton Comprehensive Rate Study: Water. Wastewater. and Surface \Vater Utilities. Final Report, Economic and Engineering Services, Inc., January 1994 City of Renton Conceptual Reuse Plan, RH2 Engineering, P.S., 1993 Citv of Renton Drinking Water Quality Study, Economic and Engineering Services, Inc., June 1992 City of Renton Emergency Power System Study for City Water System, Casne Engineering, Inc, de Montigny Engineering, PEl Consultants, Inc, February 1988 City of Renton Emergency Response Plan, ABS Consulting, 2004 Citv of Renton Lead and Copper Rule Corrosion Control Recommendation Report, Economic and Engineering Services, Inc., January 1995 City of Renton Sewer Service to the Aquifer Protection Area Final Draft, City of Renton, RH2 Engineering, 1994 City of Renton Water System Plan, RH2 Engineering/City of Renton, 1998 Citv of Renton Water Conservation Plan, 1990 Citv of Renton Water Shortage Response Plan, RH2 Engineering, P.S., September 1989 Citv of Renton Water System Emergencv Response Plan, RH2 Engineering, Inc, August 1993 Data Report for the City of Renton Cedar River Valley Aquifer Test, City of Renton, RH2 Engineering, 1987 Downtown Renton Revitalization Plan, City of Renton, Downtown Renton Association,. Beckwith Consulting Group, 1993 Earlington Park -Draft Environmental Impact Statement. City of Renton, R. W. Thorpe & Associates, July 1980 East Renton Interceptor. Final EIS, City of Renton, RH2 Engineering, 1992 Enginee~g Report for Corrosion Control Treatment Facilities, City of Renton, Economic and Engineering Services, Inc., December 1995 ERADCO Planned Unit Development. Draft Environmental Impact Statement, City of Renton, R. W. Thorpe and Associates, January 1981 Final Hydrogeologic Rq?ort Maplewood Production Wells PW-ll and PW-17, City of Renton, Pacific Groundwater Group, 1990 Final Sole Source Aquifer Petition for the Cedar River Aquifer, Renton, Washington, CH2M Hill Northwest, Inc., November 1988 Highland Village. Draft Environmental Impact Statement, City of Renton, Triad Associates, Inc. ,June 1982 Hydrogeologic Report for Protection Wells Nos. 10 and 12, City of Renton, RH2 Engineering, 1994 Lake Terrace Multi-Family Rezone. Expanded Environmental Checklist, City of Renton, R. W. Thorpe & Associates, July 1980 Long Range Water Supply Planning for the City of Renton, RH2 Engineering, P.S., 1992 Maplewood Pilot Testing Report, Kennedy / Jenks Consultants, August 2001 Maplewood Treatment Improvements Project -Project Report, Economic and Engineering Services, Inc., January 2002 Monitoring Well Installation Project Report, City of Renton, RH2 Engineering and Pacific Groundwater Group, 1993 Pre design Report for Production Wells No. 10 and 12, City of Renton, RH2 Engineering, 1993 Port of Quendall Preliminary Plan. Draft Environmental Impact Statement, City of Renton, CH2M Hill, September 1981 Port Qu~ndall Preliminary Plan. Final Environmental Impact Statement, City of Renton, CH2M Hill, February 1982 Renton Groundwater Model: Design. Development. and Calibration. Final Draft Report, Pacific Groundwater Group, January 1994. Renton Heating Oil Tank Study, City of Renton, SCS Engineers, 1994 Results of Monitoring Well Installation and Pumping Test, City of Renton, CH2M Hill, 1989 Sole Source Aquifer Petition for the Cedar River Aquifer, City of Renton, CH2M Hill, 1988 Summary of Groundwater Modeling Efforts in Support of Renton Aquifer Management, RH2 Engineering, P.S., Pacific Groundwater Group, 1989 The Renton Highlands -An Urban Design Study, CNA Architecture, 1999 Wellfield Monitoring Studv, City of Renton, CH2M Hill, 1988 Well field Protection Study, City of Renton, CH2M Hill, 1984 Gtyof&r.ton &.mon Date: (Octow 7, 20(4) Appendix K • Bibiiograpby.doc 2 Studies and Documents from Adjacent Utilities Cedar River Water and Sewer District Water System Comprehensive Plan, Penhallegon Associates Consulting Engineers, Inc., 2000 Cedar River Watershed Secondary Use Analysis, Seattle Water Department, December 1988 City of Kent Comprehensive Water System Plan, City of Kent Department of Public Works, 2002/2004 City of Tukwila Comprehensive Water Plan, Gray & Osborne, Inc., 1999 Coal Creek Water and Sewer District Comprehensive 2004 Comprehensive Plan -Water & Sewer Systems, Penhallegon Associates Consulting Engineers, 2004. King County Water District 90 Comprehensive Water System Plan, Hedges and Roth Engineering, Inc., 1998 Model Purveyor Contract Between City of Seattle and Wholesale 'Xrater Customers for the Supply of Water, Kenneth Lowthian,July 1, 1980 Proposed Lower Cedar River Basin Plan and Nonpoint Pollution Action Plan, King County Surface Water Management Division, 1996 Report: Covington Water District Water Supply Options from City of Renton, RH2 Engineering, P.S., June 1996 Seattle Comprehensive Regional Water Plan (Complan). Seattle Water Department, September 1993 Skyway Water and Sewer District Comprehensive Water System Plan, Penhallegon Associates Consulting Engineers, Inc., 2004 Skyway Coordinated Water System Plan, King County Parks, Planning and Resources Department, November 1988 Soos Creek Water and Sewer District Water Comprehensive Plan, Hedges & Roth Engineering, Inc., 1996 (update currently in draft form, August 2004) Documents from Other Agencies and Organizations Addendum to the East King County Coordinated Water System Plan, East King County Regional Water Association, August 1993 A Training Course in Water Utility Management, American Water Works Association, 1959 A WW A Seminar Proceedings Developing Water Rates, American Water Works Association, May 13, 1989 Cedar River Current and Future Conditions Report, King County Surface Water Management Division, 1993 Cedar-Sammamish Basin Instream Resources Protection Program, State of \V'ashington Department of Ecology, August 1979 Conservation Planning Requirements: Guidelines and Requirements for Public Water Systems Regarding Water Use Reporting. Demand Forecasting Methodology. and Conservation Programs, Washington State Department of Health, March 1994 Cross Connection Control Manual; Accepted Procedure and Practice. Sixth Edition, December 1995 East King County Coordinated Water System Plan. Volume I -Regiomil Supplement, Economic and Engineering Services, Inc., October 1989 CirY of Renton Rttision Dale: (October 7, 2004) Appendix K . Bibliograpf(y. doc 3 East King County Coordinated Water System Plan, Volume II -Appendices, Economic and Engineering Services, Inc" October 1989 Group A Public Water Systems Waterworks Standards -Revised Draft, Washington State Department of Health, April 1996 ' Metro Effluent Reuse Baseline Risk Assessment Volumes I. II. and III, Municipality of Metropolitan Seattle (METRO), Parametrix, ,Inc., April 1993 ' Municipal Water Law: Interim Planning Guidance for Water System Plan/Small Water System Management Program Approvals, Washington State Department of Health, March 2004 Operational Techniques for Distribution Systems, American Water Works Association, February 1980 State Board of Health Drinking Water Regulations, Washi?gton ~tate Department of Health The 1994 King County Comprehensive Plan, King Couhty Department of Development and Environmental Services, 1994 Water Reclamation and Reuse: A Feasibility Study for the King County Metropolitan Area, King County Department of Natural' Resources, Water Pollution Control Division, Seattle Water Department, City of Renton, ECONorthwest, Brown and Caldwell, Camp Dresser McKee, Herrera Environmental Consultants, Pacific Rim Resources, December 1995 " Water System Design Manual, Washington State Department of Health, August 2001 Water System Planning Handbook, Washington State Department of Health, April 1997 GtyofRenlon Revision Date: (October 1, 2004) Appendix K . Bibliography,doc 4 I ',' , )~ , . . ,' .', .. ~. ' .• ; , '>..-,., ',' ., 'j, . '~ ",,1.', •..• ..! ..... i,' ", ",-.' "'\, • ,< ' ~ ':, • I ", r . ~ .. ' " ' it: . ',-.;"' '.i .,- J. -; ,r, ~ , , , " , :' .-',' ;," " , " ", ,< "/<-. (-.', , ,~.\.:, .~,-, -. ,-,{ " . .,,~' ';" ... ~~. -;,' .;,' " f.' -'-,,' ' I: ".', ", . ",.' t",' ., ~ '_ .. )' ,:.',l. ,-'~' . , , ," " .. ~ . , " ,/', " \ /", -' .. :\,~ .' -., : '. .... ,'. , M .... '" ,,', . ' .• , .' ~-. L; ;," '"J,.' " ~ " , 'IV. '..r.' .. j .. ,\ j .... , .. ., ,\ ~/Apperidix'~t\lrY \,.; •• HI§tORIG~i£WAT:Ek26hN§6M~jIO~A~D' , . "";'-; /., "'~"};" " ·.;'tj":';;'~,PR6buCTi6N .' X'f/ ", i;' oS:; ',:;, ;.<~\, >:" ;"./',' ,'. >:. ;. . .. ''!,'<: :;'" ''':~i~ ~:'-'/,~,~:.; :':; ',.;:;:i;':,. -,,;:~,,:', .,. ':',:,~ :':~ ::." : .. ~';, j, : "'. ~:<. ,; ',':':., .'. );'\, i ,1 ,,' "';., ,: ,Mp~th~Y::IjlStO:ri~~tWatet{qRri~¥I:rllj~ro.lj.~c:lp¢):~rOd'Uct~Q~::9Y::;:"':~~;:t~' ,: ; .. ··~,~;o~e~'~r~r;;;c~:,.<~:;?<,:~;';,;.~::;',.;t·' . ' ,. .' " ,. <~:~,:§jngl¢-faWilYC9n~\l~Ptiong:oi!ip,ar~:4;~b~aJ~J3~9Cl<: .( ,>-, ":~, ~\'~, ", .' ". ::X:.:~~:~:~. ~,.:,!":,':(" :~"~ ,; :'>~i.::/ :,~.:~""\ < (,' ,~,. -• ,,' ,.,,: '.' • ':: - , " .' ). "; . t, .. ,":,- . .," .. \" . '-" ',/,"" '.~ . I,->~ \" • I.e "" '-',', ",:" ) :~.' ':"._(' .'~ . ~ .. ' 'J.", ," ';; "'i .,~, : , ".;;"',< ,j "\ ,,' .', , ".". . , \' " " , " '.,." ',J" . -:-:- '. ,~ ,'. , .' ...... ,.-- Year CONSUMPTION Singl~·Family: ... 1998 1999 ---_. __ .-... -------_._ ..... 2000 2001 2002 2003 Multif~~ily: 1998 1999 2000 2001 2002 2003 Commercial: Jan Feb Historical Water Consumption and Production (CCT) Appendix M Historical Water Consumption and Production (ccf) March April May June July Aug Sept Oct Nov Dec Annual Total 72,268 70,469 63,665 69,623 69,944 81,830 90,486 123,903 121,142 101,961 74,879 71,515 1,011,685 71,258 "13,401 '61,393 "'70,839 "73:16-9' . 83,451-8-3,793-'102~325---101]21-----10T645-----73.067---66:97~r-962,936- --7(f578----·-i5,570-66: 74'1' -'-i5,807 .... -'62,258 i8:493---90:099117,117---107:479 --96,376 --71-,841---73,057-985,416 .----6(371" -78';685-"-'65,921 "'-(4)10 -'-65,138'--83;633---85:330 --95;34-8 ·--9T389-S9.103 -74}04--72,677 --930;509 ---63,9-7"8---'--68,61-0' --67:499 -79,845 --65j58-----74:539--'--86,456 --109,506 ---11-5;899----11"2;675--65;450-74,421 984;636 ---72;"125-·----79,409 --63;92-4'-63:239-' --66~73--89~98f-f68,o35" 14 7~5-40-' 1 ii:63'S --'f1-3-,40~r -77~828 --71T32-1,08'1;229 ----_ ....... _-._ ..... -----41,202 63,924 .. 3?,~?§ ~Q,832 ___ ~§!~§5 ____ 74~8§Q ______ 4~_'_4.~4 ______ g~?I!L ___ ~1~1_55 ____ 88,~~_? ___ }~~Qg~ ___ §~!~4L ._~~~!94! __ 42,501 64,099 ... ~4,60?. 61,035 ....~J,Q3~ ..71,~_82. ._ .... _44A§ 1 __ !3.4~6?L ______ 5822§_3 ______ ~~_'_Q7?___ __ 4.5X1? _ _ __ n-,-~~L ___ !9_~,_~_~_~ ___ .... 41,~~8_ .... §2,170 .42,374 65,758 ... ~6,540 ' ..... 65...185 '. _4_~,§J3 __ 6~,_?Z? ___ .4§_'_?~~__ __ 6_~~_!~§.___A?,2.1 Z ______ §~,_~~ ___ 6~1~~~~ __ _ 41'!QO __ 67,38Q .}~,438 56,556 39,510 .. §§,~18 44!025_tltl,052 ... 4§,~~8 _____ §Z,??1 ___ 45.!69 _____ 6.12. 41__..!4~!1~_~ ___ _____ ~~,_§§1 §1 ~9~Q . . .. 49,~~~ .60!034 38,189 68,674 37,171 69,658 48,184 69,616 50,842 65,329 648,142 43,873 64,574 39,866 62,007 ····42,954 . 75,687 49;961 88;82056,374· '76-.-418-44,031"" -------69~468-jT3~31I- ... _ ..... _ .. _ .. ---... --_ ... _-_ .. _ .. _ ... __ .. _ .... __ ... --_._._--_ .. _._._._ .. _._------",---_. __ ._---_._-1998 58,128 75,782 50,423 72,895 60,170 83,197 68,447 128,818 88,106.124,192 59,713 57,339 927,210 1999 ........ 61,391 71,057·53,029 ···71;830-····59;414----88;79-8 --73,247 -11'1:33"1"--.... 75~625--"103:560 56,309-----67~447· . -89:,(038- 2000 51,880 ············64,788 47,661'72,391 44,830--71~655-57)H8---73:564-------65,370----yK840---54-,721-----66;5-82------746;440- 2001 50,724 .. "74,954' 45;32367,494 45,006 85:153· -51.431---79;56§--63~-20:f ---69,061----43~859--69)35----745,01"2"- 2002 '. --43,"84"4----62:085--45)5-3 -_. 63:963 40,990' --68,574-----50:65-8----Y9,239-'---61;503 ---68:044 ---48~879 65,275 698,747 ---2003----------.---------44:974·---65:525----38~020-... '50,838-40,739' ---64:s6(f -48:044 ·-·-74)88---53~159---67:91-8------47, 17f' --67,618 -663;461 Industrial: 1998 1999 2000 2001 ""'-"-'-"'~"'-" <-.-.-"."-~'""'"' 2002 ---,--~-". ,-y-,,---------"-'"_ .. __ ._-. 2003 -10,758 1 o,iii-----8,444---1'1:378---n~054---T7J0124~573--28:558 3{01Y-2i,151 12,007 8,685 208,098 '18,457 . ··· .. ··17,707 22,879 ---21)60--23}99---26,971----37-,194 -38:543---44;62Y-----40}S4 ··---20}00 19,795. 332;686- 18,347" -"·21,354--22:024---22:556-. -24:5ff --23}2T ---26)94' ·-3"2;855----'6-{093'----sD:9Yf '--1tU~13--W;701----339~j4f­ '--20,375 .... -24:887 ····31 ,289"'-10)08 '--2f,738-' ----27,042 ---28:235 ----39:624' --20:600-'--29}99 -13':573 -24;849--'291 ;6"-19- --'-'-25,563-. -20,070 .2{174 -if67 423,02r-26~29f-33,981' --33,244'---'-33;972-----19,420 -2"4,286 . -'--19)09 -304,605 --12;16f 1511'54--'13~376 13, f46'-2'6)43-' -' 23:081 ·-12~4891--3·6:03-1--17J5-i3" --'1-9~644 ---2f675-' --8"]84--'-213,943 AppdM_Monthly Consumption & Production 063004_doc 1015/04 R. W. Beck 1 Year Jan Feb CONSUMPTION Government: Historical Water Consumption and Production (ccf) Appendix M Historical Water Consumption and Production (ccf) March April May June July Aug Sept Oct Nov Dec Annual . Total -f99S--------------------------4;844-----4,552 ----4;597"--~ 4;99i-------8:-o4o---9:20T--T!{995------io~658 ---33-:30r--:16,803-------1 f:91T·---4,90-S ... -139;8-1-4· ·1999-----------------6,57if"·---4,242---5,633---5;-479---7,"512---9;729--14;137'-19,019 26,975 -----14,361-------n:970------5;66S--T31,29-9-- 2000------··---7'}494;003 ··--6;864-......... ·6:624--s,658---7',94220,586· ---20;696----35,959----17~07f------9~324---------5:282--150~98 2001 7,061f 4,130 . 4,3254;590 6,237---f,86()-1S}73fs;S99-----29:sfo---11:fsif --11~-6f1-----4J9f----126,740- 2002 ·S;335 4,140 4,708--3-,385"4-,S47 . r143-18,8ff----21:85f -----32)88-----1-S~028----8:064---4,251---130-;852- 2003 ·····4,533----'(1-83 ··-·--4;osf ··---4:007"----S,S16-----aJjff-3T22T--34,45S--42~39S----14:954----9;962 ·-4,397---fS9,747 _1~r:!9.~~.~~_n __ ~ ____ . ___ ... ____ . __ . _____ . ______ . ____ . ______________ . _._. _______________ . ____ . ________________ .. _ .. _._ .. _. __ ._. ____ . __ ._ ... ___ . ____ ._ .. __ ...... _ .. __ ..... _. __ . ___ . ____ ._. __ .. _____ ... ______ .. ________ . _. _______ .... _ ... _ ... _ _. __ ..... _ ........ __ ... _ ... _._ .. ___ ._ 1998 -NA -------.---~--.-.-"---""---------_ .. _---._._-_ .. _._-_."---_. -_ ... _", ,-------_._ .. _---_.-_.-._-.. _-, .. _-_._-1999 NA ----_.-._-.-.... __ ._-.---_ .... -_ ... -_ .... _. __ .-_.-.. _-------_._--_.-. __ ._-----_.-._-_._--. __ . __ .. ----_ .... _. ------_._-_._-------. --------------2000 881 2,549 852 2,569 3,927 19,748 33,744 76,946 58,345 47,562 9,210 2,354 258,687 ··-2001"----·----------------{096'----~43-5-----{358·--··-1",861" .. -3:394" ·-24,907'-··-26:094"---65;92S--39,237 ----38,603--5]00 -~353 211j170- . --.-.--.-----.................... -.--.•... " c-:::-· .--.-----.---..... -.. -.• -.-.--.----.-.---•. _.-.. -........... --... --.-... -._-----------.-----.--.--. --------------2002 646 3,656 356 1,754 2,604 12,746 27,761 83,827 51,906 60,702 13,963 12,165 272,086 .. -----_._------_.. . --_.-... _-----_ .. _-._--.. _-----._---_._-.-_._--_._.-•.. __ .. _-.-_._'-... _._-.... __ .--_._------_. __ ._-------_ .• _.--_. __ ._-------_._ .. --_._--_ .. __ .---_._-- 2003 5,163 781 975 1,491 4,842 35,545 54,034 120,249 76,143 67,619 8,091 1,767 376,700 Wholesale: 1998-·· ---.. ------.--------7,003----6.065----5~S1-9-' ------6,40·5-·---7-;64·4-----7~23":3" ----7J"7"6-· ·--13,01-5'· --10:404-··-9]32" --6,130 -7A41---94,461- --.. -.------.. _----_ .. _ .. ---_._._----------_.-.... _.-----_ .. __ ._---_. _ .. -----_._ .. ,_ ...... _-.. _---------------_._ .. _--_._--_ .. _,._._ ... _._----.. _-_._---_ .. _._-----_._---._. -----... _._----~-•. -.. -.--.-1999 9,366 7,280 7,131 6,850 8,424 7,588 10,154 9,874 8,970 9,953 7,202 8,487 101,279 ---2000---------·-·--.---8:144------8;232-·-·--5-:844· ---8~529-----·(502· --"7,810----·'·· {iS6' -'H,246-~-1I055----7,380---7~963-7,369--102;"330- _ ...... __ ._-_. __ . __ ... _--_ .. --.----_... .:-.. -...... --.. -... _.-._._-_._ .. _'._' .. --_ •. _ ..• __ . __ . -_ .•. _--_ ... --------_.-::.-;:--.. _--_ ... -•.. __ .. -------._ .. _._ .... _ .•. _------..•. -._ .. --------._----------- 2001 7,151 6,249 6,214 5,614 6,044 8,063 6,676 8,659 9,561 6,370 6,927 5,835 83,363 ........ .. -.-.. ·························1 ... . ......................... -.......•. -.... -.. --.--... -............................. -........ -...... -.......... -.-... -.-...... ---.--................... -... -...... -.-.-.-.-. -.-----•.• --.•... -... --... -.-.... --... --.--.-.--.. -._-.. --.---------... -. -----.. --.. -------.------ 2002 7,281 5,940 5,501 6,085 6,180 7,325 7,537 9,590 10,311 11,400 2,307 5,917 85,374 ...... -.. . ....... _ ...... _.. . ....... _......... . ......... _.--._---. -._. -._ ... __ ........ __ .--_._._.-._.-... .--_. __ ._--_ .. _ .... _. __ ._---_ .. _----_.----_ .. -.--_. __ ._.------_._-_.-----------------.-.----~-. _._--_._---- 2003 5,329 5,260 9,126 5,428 5,888 7,244 8,940 11,228 10,137 7,056 6,298 5,326 87,260 1 Prior to 2000, the City's billing software recorded irrigation consumption within other customer classes. AppdM _Monthly Consumption & Production 063004.doc 1015104 R. W. Beck 2 '- Year Interties 2: 1998 1999 Jan Feb Historical Water Consumption and Production (C\,I} Appendix M Historical Water Consumption and Production (ccf) March April May June July Aug Sept 0 0 0 0 0 .. _-•....... __ .... ....... __ ._----_. _ .. --------"._-_._" --.. -.. ----.•..•. -~ __ ~_H __ • ___ ._ M_· ... ____ . __ . ____ ----_ .. '----_ . 0 0 0 0 0 Oct 0 -~~----. 0 Nov 0 -------0 Dec Annual Total 0 0 __ • __ ~_ ~ _. _. ____ •• ___ ~. __ •• , __ , _··1 __ _ o o o o o o o o ---''''-'''-'_.'-''-2000 2001 2002 2003 o 0 0 0 0 0 ········1········· _ ~,177 o 'B,:~~ !-l=+=-~~~=~2~=-~tl =--=i =-~~=-:J .• :~.:~~: --1~i ·_·1--··--_··_--_·· o . 0 _ .. __ .' .•... -.-._--_ .. _~'L~~_4 _ 370 _ ..... __ ..... __ ................ 470 Total Historical Consumption3: 1998 .--------------. -194:203--23b~664--1(8)74---"226:T2S--199,217 -274,028 . -i5(Y:695---409:233----331~13i--368,57T--i03:7ff ---iT 4li9 -3,070,3 fs- 1999-269,549 ---237, 786 184;667237:293213,35i288;419-26f986365}19316;081 353,345--21(993 ... -242,266 3;126,461 2000 202;1'77 238,666192,246·254,234 -189;227274,554 287,516 -401)01-386~56-0-----364:336----2To~489-----i39~304--3;2"40;998 2001 ·····192,485260,89i22f,290-230,4M---18f322 -363~576---258;564--374,122--300)1-8---310)41 -2oT60f -240:95-3--3,082,"675- 2052-----1"86-,308--225;5-§f--185;685 238:680---1if1;699---26-5;292262)75 -406;91-if 354;223--356;885 ---213.191247;3673,124,812"- 2003 188,161234;886 169,485200,156188,155 304,702 312,665513;176383,602 "367:146 -215:b57228~932 J;3()6,123 PRODUCTION Well Production: 1998 1999 2000 .-~----. ',,,---~ ... -2001 2002 2003 1---255,744--·233:928-25-8~637---2-55~240 296,077 314,517 415,359 452,580 382,140 286,315 260,022 275,768 3,686,328 -265,649 242;153 268,881-272;543--298}1-3 350~143--389:805378.880-361:923----286,540 ---257,704 . -251,710--3,624,146 ----··-···-254~664·-239:800-266,64;r -260]70 --28S:399---332Joa--426,"9-04--·-44~982--334,449-----293,005 -25-1-;-335-T5f434 -·-3,648,793- -?~,225--·-25~,59f-2j9:$~6--26?;630-.·?$O,031 --315~33ii-3$4:6io·j?$:§[5-·.-394J"9r ---25?~8~r :~~?~)~!$I· --~-~~:6F1--);4~I16::[ 240,346 21 ~,011 ?4?,~~7 24Q,554 .??4J~_? 352!?? 4 4t?,~g8_ .. 4~6~1?7 __ }49,1_~L __ ?~?~~W ___ ?~4L1~_?. _____ ?4?J±~ ____ ~,§.~~~_~~_ 240,740 209,178 232,800 230,842 281,381 410,531 501,530 471,310 356,471 272,443 242,292 250,030 3,699,549 2 The City has emergency interties with Kent. Seattle, and Tukwila. The water supplied through an intertie in 2001·2003 was through the intertie with Kent. 3 Includes retail and wholesale water sales. Does not include non-revenue water. AppdM_Mullthly Consumptiull & Production 063004.doc 10{5104 R. W. Beck 3 Year Purchased From Seattle4: Jan Feb Historical Water Consumption and Production (ccf) Appendix M Historical Water Consumption and Production (ccf) March April May June Ju~ Aug Sept .. Oct Nov Dec Annual Total .1998--... --.-··--. -··-~IIoo·····-·100· ·-'·_'--0 "12:799" -····-···-0-_··_-·--0· ---····0-'-~=~_Q =_}.~gQ "" . __ "JQQ.. __ Q_ =I~!9QQ. 1999 8.124 10.936 8,709 9.587 8,473 13.906 10.577 14.842 11.321 9.868 11.200 8.222 125,765 .?QQQ:~ .. _ .. _ __.._~:~ .. _~:=!]~f :~ ___ "[§~I :_. __ ~tl~QQ= _=.~:]~~§-f ===z,Qir =:=~;~I:=J:f~{ =!~JIQ= =-1·Q~~8-··--·" 9!.3f5:~. =t""j~_r ---1".2iQ=·-1}i~8oj= 2001 """"_~ .. ~Q? 7,47~ ._..?",178 """].~~}. """""."" 8.950 "._"~ .. ~"~? _J.QA~~ __ ~,~?1 ._._.~,}~)._." __ 8!~!.. " __ .l!~~L _. ___ !!,~Q~_"._~Q.~.t~~ __ 2002 .. _7!!Z~ ".}.J?3 .... §,403 """!.Q!~_ """""."4!~O~ ~AO~.4I~87§A~9 " .. ".".§,~!?._ .. _M~L""._.4A~!._4!.Q~9._._."_~~LO!~ 2003 5.222 4,434 4.212 4.160 5.586 5.396 6.903 6.552 6.160 4,458 4.958 4.273 62,314 Total Historical Production: 1998 ..... . 258.844 234.028 258,637 267.940296.077 .. 314.517 415.359 452.580382.140 290.215. 260.122275.7683,706,228 .. -1999-·" -.... ... . .... 273.773""253:089 ·277:·590-· ·282:"1·3-0·--3-06.686· -3·64:04·9·400:382" ·-393~722---3-73-.24·,r--·296~408--"268:·904-·-·'259:932· "3:i49;9-1"1"- 2000"-----·-·-·--·-·--262:332·-249~454--267;244"" 2"69~32:f-296,320-341·;365-440;45S--4"6;f412 --345.077-302.320258.592 ---264. 70"4-3~j60,600-· 2001 .... 26~!$?7... i66;Q6~: ·-2~§.!~~{" ··"2iQ.~73··~:?:~~~~~I-I?4:?~i~~~~105·j~~:Q?~:~ ·:".~I~;4$f ~-·?§I;~~$~:·:=?~QI4~f:~=~~;I~I ::~,"~~~;o~r: 2002 247.524 225.134 252.090 247.629 279,704 357.683 417.895 442.647 354.503 288.571 238.613 246.235 3,598,230 -2003---·--··----245.96"2" -21 f6T2 "-2ft :012 ·235.002" -2sf§6?"--41SJ27-· 508,433-· -ti"77~86f -"-362.63f -276.90T -24 7.250--254]63--3~761:8s3"- Non-Revenue5: 1998 1999 2000 2001 2002 -_ .. -----------------------_ ... -2003 -_ .......... __ ._----_ .. _._. _ ........... __ ... _._--_."" ..... __ ............ _._ ....... __ ._--._._ .. _ ....... -_ ..... _ .•........ _-_ ............ . __ .~_4L§4L . __ ...l!~§i_~!~§~ ___ jJ ,815 __ ~§.!.~~Q.. ... 4Q.48~ .1~4.66.i_._j3.34L _.-.?_~09 ____ ~ _56.38~_ . __ . ..Q1239 _ ~§,913_ .. ." __ .64.~14.._J.!5,.~Q3 __._.~,.~~~ ____ . .44.~~L ._.~~!~2~ .... J~'§~Q_ .J~Jd!!~_ "_l~&Qt ___ .!5ZJ~~ . __ N_~ ___ g!!1L _._g.§§§_" ___ 6.23,450 60.1~5 .1Q'?~~ ..... '?'§!OQ~ .J5.Q~~JO?!Q~~ ... ~.~&1J 1 .. 5?.~~~ .~J.?J1 ............... N~" ... ___ .. I'JA ...... 4~!1Q~..._.?~AQQ""._~~~&Q~ .. ._._ ?1Q.4?_._. __ !5,.1§~._ ... .65.§14._ ._ ... 4Q.1§!!_JJ 1!§!5~. __ "_?Q!§!5.§ ..... 11~L~4.L .... J_4!~Q4 .. _.. _1J.J38 .. ". _____ NA _ ._._~~!1~L ___ 8.!.~~!L __ ~~_~t~~t 61.216 NA 66,405 8.949 98.005 92.391 155.520 35.731 280 NA 24.822 NA 473,418 ·-··"5·7:;13"01-· ----··NA ····-67;52T --:f(S46--"98,812""111;2"25 " 195.7t3S·---NA·----N.i\ --NA 32.193· -25]71--455,740 4 Purchased water for 1999 through 2003 was through the Boeing Seattle meters; for 1997 and 1998 it was through Seattle intertie No. 39. In 1999 a small amount of water (less than 1 ccf) was purchased through Seattle meter Nos. 33 and 38. 5 Non-revenue water is the difference between total source production and total consumption. The number shown includes unaccounted for non-revenue water (leaks and inaccurate meters), and accounted for non-revenue water (main flushing and fire fighting). A NA value occurs when consumption is greater than production. This may be due to the way in which billing is recorded for residential customers, whose meters are read bimonthly. It may also be an indication of discrepancies between meters and billing software or errors in the information recorded. AppdM_Monthly Consumption & Production 0630D4.doc 10/5104 R W.Beck 4 --u u -t:: 0 '';::; c.. E :::J (I) t:: 0 (.) ... CI) -CIS == Single-Family Consumption Compared to Renton's Rate Block (for Single-Family Meters Read Monthly) 35~--------------------------------------------------------------------------------------~ 30 -50th Percentile --75th Percentile 25 1\ -90th Percentile --95th Percentile I~ II. II ; ~ 20 15 10 51 I... ~ o B B B B B B ~ ~ ~ ~ ~ ~ , , , , , , ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 5?5 5?5 5?5 ~Q) 5?5 ~Q) s:s ,!-:r:::3 s:s ~r:::3 s:s ~r:::3 5) '!-:r;;::, _\5) ~r;;::, 5) ~r;;::, 5) '!-:r;;::, _\5) ~r;;::, 5) ~r;;::, 5) '!-:r;;::, 5) ~r;;::, 5) ~r;;::, ':,'b-~ ~t§-~'b-~ ':,v ~0~ ~o ':,'b-~ ~'lf ~'b-~ ':,v ~0~ ~o ':,'b-~ ~'lf ~'b-"" ':,v ~0~ ~o ':,'b-~ ~'lf ~'b-"" ':,v ~0~ ~o ':,'b-~ ~'lf ~'b-~ ':,v ~0~ ~o Meter Read Month Number of Single-Family Bomonthly Meters Reads 6,000 5,900 5,800 I -Reading Count I I 5,700 - 5,600 ~ 5,500 - CIS Q) a: 5,400 ... - Q) a 5,300 I--I/) <3 5,200 f-----------,---'--1-1----1---0 _ 5,100 c I-- :::J <3 5,000 -1-- 4,900 4,800 4,700 4,600 4,500 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~C!5 ~ ~C!5 s::s ~'\5 s::s ~'\5 s::s ~'\5 ~ ~r::::, ~ ~r::::, ~ ~r::::, ~ ~r::::, ~ ~r::::, ~ ~r::::, ~ ~ ~ ~r::::, ~ ~ #~#~~~#~#~~~#~#~~~#~#~~~#~#~~# Meter Read Month en 'C CO CD a: en ... CD -CD :E >- ~ -c: 0 :E :?:- E CO u.. I .!! C') c: en -0 ... CD .c E ::J Z a LO C') a a C') -c: ::J 0 () Ol c: '5 as Q) a: I a L.{) C\J a a C\J a a LO a ClO ~O ClO /'V '~ ClO \S'I Y" c9 ~ O~ ClO ~ ~~ ClO ~ v. ~~ 0, '10 cb/'V '<X ~~ o~ ~ ~ o~ cb~ ~~ cb~ v. ~ .c .(0 -I: ~o 0 .(0 /'V == ~ " .(0 \S'I as Q) ~ a: ~ ... .t. Q) o~ -Q) .(0 ~ == ~~ .(0 ~ V. ~ 00 ~o 00 /'V ~ 00 \S'I Y" a ~ v~ ~ 00 ~ ~~ O0v.~ ~ 6'~ ~o 6'~ /'V ~ 6'~ \S'I ~ ~ 6! ~~ ~ 6'~ ~ ~~ 6'~ ~ V. ~ --(,) (,) -c 0 :;:::: c.. E :s In c 0 0 ... CI) ... CIS == Single-Family Consumption Compared to Renton1s Rate Block (for Single-Family Meters Read Bimonthly) 70~---------------------------------------------------------------------------------------, -50th Percentile 60+1----------------------------~ -75th Percentile -90th Percentile -95th Percentile 50 I fA. 11-----41 1--. ------I 40 30 20 I '---' V' _n """'" ~ ~ "'" / " I 10 ~ O+I--~_.--,__,--_r--r__r--r__,--,__,--,__.--,__,--,__.--.__,r__,--,__.--,__,--,__.--,__,--,_~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~Q5 5?5 5?5 s::s ~(j s::s ~(j s::s ~(j >:> ~() _\>:> ~() >:> ~() >:> ~() _\>:> ~() >:> ~r:::::, >:> ~() _\>:> ~() >:> ~() )1>-<:.' ~~ ~1>-~ )V ~0-q ~o~ )1>-<:.' ~'lf ~1>-~ )V ~0-q ~o )1>-<:.' ~'lf ~1>--' )V ~0-q ~o )1>-<:.' ~'lf ~1>--' )V ~0-q ~o )1>-<:.' ~'lf ~1>--' )V ~0-q ~o Meter Read Month " "',,- ' ... , (. ." '\ ~. 'r .}' .' ~ • \." . ' .. ~ . ~. ~I '~' ',' .. ," ;." -. ;~\. . " "c~-, ,.,;/'-, ':' ,~:App~ri~ikcN' . ·'·',;b,EMaG'riA~HI€;PRO:j,.E6j;16~:ME*1'I61J,dt,~G~".;\ .,. '. ',>;';,;;,-t,:; ,:,'; . ",:', ':';,.'~Y ,,',; »',:>::"":,:~'i,' :;), :-'·>:':::~;":'::-{,:,>:,:.:'>:;";;/::":':;::f.:'i\~", :":'" ,;::~,', .. .... : -/,:" '... ..,.'.:: -" J I.. ~,~ : ;h':,:/~.':::>. ~;;,,", i ','< . .' ~ :~ , ' I :i.,,- "--.: ... ... ..... -") ',' ' ,1,' ; V;' • ,_ " . , -:'~' -, , '.' "':"}' "'.< ',-; , " -', ~ . .c._,- '," "I' '. .'." . "'!' • . ' ' " ~ • I • <,.' " ,.! .J ",." ',-') " "-"),,,' Appendix N DEMOGRAPHIC PROJECTION METHODOLOGY This appendix describes the methodology that was used to develop the updated demographic projections for the City of Renton's Water System Plan (WSP). Demographic projections were developed for single-and multifamily households, employment, and population. Household, employment, and population projections were prepared for 2005, since the City's updated WSP will be submitted then. Demographic projections will also be prepared for 2011, to meet the six year planning horizon, 2025, and buildout. Available Information Information available for preparing demographic projections comes from Puget Sound Regional Council (PSRC) forecasts and the City's Planning Department. Projections prepared by PSRC incorporate 2000 Census data and OFM housing and population forecasts updated in January 2002. The City's demographic forecasts are based on PSRC demographic forecasts as well as its Buildable Lands database. PSRC Data The most recent PSRC demographic information available (published April 2003) was used to update demographic projections for the WSP. PSRC prepared demographic numbers for single- and multifamily households, employees, and population; for the years 2000, 2010, 2020, and 2030. Year-2000 estimates include households, employees, and population and are based on year-2000 Census data. PSRC demographic forecasts are prepared for King, Kitsap, Pierce, and Snohomish Counties and then allocated to forecast analysis zones (F AZ) within each county. These forecasts by F AZ are then further allocated into smaller areas, called traffic analysis zones (TAZ). Demographic projections for the Renton's water service area are based on the PSRC demographics distributed by TAZ. Historically, PSRC forecasts have proven to be reasonably accurate for large scale areas (i.e. at the county and F AZ level). The accuracy of the forecasts tends to be less certain for smaller areas. PSRC relies on planning information and input from cities and counties in order to refine its initial forecasts. The more detailed and accurate information PSRC receives from cities and counties regarding land use and specific planning details within their jurisdictions, the more accurate are the PSRC numbers. City Planning Data The City has recently prepared 2030 household and employment forecasts using its Buildable Lands Database and the most recent demographic forecasts from the PSRC. Household and employment forecasts were prepared for 1998 and 2020 several years ago by the Planning Department as part of a traffic study. At the time that the 1998 and 2020 forecasts were prepared the Buildable Lands database had not been created, so a different methodology was AppdN_Demographic Projection Methodology.doc 9123104 R. W. Beck N-l Appendix N used, The City has discovered some errors in the 1998 and 2020 forecasts that Were prepared and there are discrepancies between the earlier planning numbers and the 2030 forecasts. In general, the 2020 forecasts are higher, forecasting considerably more growth than the recent 2030 forecasts. While some specific discrepancies and errors with the 1998 and 2020 forecasts have been identified, the Planning Department has not been able to quantify all of the differences. The Planning Department does not plan to update its year-2020numbers, but will use the more recent 2030 forecasts; there are no plans to update existing household and employment numbers. The City's forecasts are prepared by Renton traffic analysis zones (RTAZ), which are a further division of the PSRC TAZs (PTAZ). This provides more accurate demographic forecasts within the City. Therefore, where possible it is desirable to use the Planning Department's forecasts. Population and Demographic. ~rojections for the Water System Plan Because the City's forecasts are based on its Buildable Lands database (a capacity model) it is believed that for smaller areas (RTAZ down to the neighborhood or parcel level) the City has a more detailed and accurate perspective of the growth potential throughout the City. Therefore, the City's 2030 forecast is being used as a buildout estimate for water planning purposes. There are significant differences between PSRC and the City's 2030 forecasts, so high and low demographic projections were developed for the City's Water System Plan to reflect these differences in future growth rates. Following is a more detailed description of the baseline estimates and demographic projections that will be used for developing future water demands. Baseline Estimates The year 2002 is being used as a baseline for the single-and multifamily households. As mentioned above, the City's Planning Department has not updated existing population, employment, or household estimates. However, number of single-family households for 2002 was available from utility billing records and number of multifamily households for 2002 was available from the Buildable Lands database. PSRC's year-2000 estimates are being used as the baseline numbers for population and employment, which are based on year-2000 Census data. High and low Projections for 2005, 2011, 2025 High and low demographic projections were prepared to account for the difference between PSRC forecasts and forecasts from the City's Planning Department. The range of projections presented is also important in order to capture the uncertainty inherent in long range forecasts. The high projection was developed using the average annual growth rate from the baseline numbers to the City 2030 (buildout) forecasts. The low projection was developed with the same baseline and buildout forecasts as was used for the high projection. The main difference between the high and low demographic projections is that buildout under the low scenario would occur later in time than the high scenario. The low N-2 R. W. Beck AppdN_Demographic Projection Methodology.doc 9/23/04 DEMOGRAPHIC FORECASTING METHODOLOGY demographic projections were developed for 2005, 2011, and 2025 using the average annual growth rates between the year-2002 baseline numbers and the PSRC 2030 forecasts. The high and low annual growth rates used to develop population and demographic projections for the Water System Plan are presented in Table 1. High Projection2 2002 to 2005 2005 to 2011 2011 to 2025 Low Projection3 2002 to 2005 2005 to 2011 2011 to 2025 Notes: Table 1 Average Annual Growth Rates for Demographic Projections Population' 1.5% 2.3% 2.4% 1.0% 1.0% 1.0% Single-F amily 1.6% 0.9% 0.9% 0.4% 0.4% 0.4% Multifamily 3.57% 3.57% 3.57% 2.4% 2.4% 2.4% Employment 2.32% 2.32% 2.32% 1.9% 1.9% 1.9% ,. Population for the high projection is based on 2.5 people per single-family household and 2.0 people per multifamily household. rather than an annual growth rate. 2. The average annual growth rates for the high projection is based on the City's 2030 demographic forecasts. Initial annual average growth rates are consistent with the recent historical growth. Single-family growth decreases over time reflecting the anticipation that a larger percentage of the residential growth within Renton will occur with multifamily housing. 3. The average annual growth rates for the low projection is based on the anticipated amount of growth between 2002 and PSRC forecasts for 2030. Differences Between the Water Service Area and City Limits City of Renton's water service area does not completely coincide with the city limits. There are some areas within the city limits that are not served by the City's water system. There are other areas that are outside of the city limits, but are part of Renton's water service area. In order to project the amount of growth that will likely occur in these areas, GIS analysis as well as manual adjustments were used to determine the demographics of these small areas. Inside City Limits, Outside Water Service Area Using the geographical intersection of RTAZ with the water service area boundary, a number of polygons were created representing areas within the city limits, but outside the water service area. As an initial step, City demographic forecasts within each of these RTAZs were reduced based strictly on the percent area represented by each of these polygons. A second step in the analysis adjusted the demographic forecasts based on the actual development and available land within the polygon compared with the remaining area of the AppdN_Demographic Projection Methodology.doc 9123104 R. W. Beck N-3 Appendix N RT AZ. The forecasts within each polygon were adjusted to reflect any more detailed information regarding the land use and ultimate planned growth for each polygon. Outside the City Limits, Inside the Water Service Area Areas that are outside the city limits do not have a Renton T AZ associated with them. As a result there are not any City prepared demographic forecasts for these areas. A similar GIS process was used to develop polygons representing these areas. For service areas outside the city limits, PT AZs were intersected with the water service area boundary to develop polygons. The area of each polygon was calculated as a percent of the entire PTAZ of which it is a part. PSRC forecasts for households, employment, and population for each PTAZ, were. then multiplied by the percent area of each polygon within the water service area. The resulting projections associated with these small polygons were then added to the City based projections to develop a total demographic projection for the water service area. Area included from each PT AZ was adjusted where necessary based on more detailed information about limd use and planned development. N-4 R. W. Beck AppdN _Demographic Projection Methodoiogy.doc 9/23/04 '"l-: "'." • -< c' /,' .. ' '. ";, ' • t", ""'-' . "'.;../, i: " .. ' '" ,.. . ~. : .'!< . ",.,' '. . ... ~ . , ' ..... , ~. " " \',' "," '-,t~ , \.-'"I i. " . : ~" '. ",.- ..•• !' , ~. '-, ' :', ' '.,', " -~ .,'-. . .. l. ,., •· ...• ' .• i. , ,",', , '. .' .' \"-; . 'J, , -,',' .', t' ~.' .. ' ,.' .', ' .:,':' ,., ., ,." '",' , ".-J' ,,-,' ~ ,. . ':. " , ".' ,'" " ,- ',' , ..... ", " ,;.' " .. ' ~ .~,' . -.:';..,;' ~-, -:',,' v,' " .. " ,,: ..... .: " '''':,.)'' , ',~ " -\ '.~ , . ': ,~, ,,' )" Appendix P Hydraulic Analysis Water Model Update Methodology Software Hydraulic analysis for Renton's 2004 Water System Plan update used the City's existing H20Net model (v. 4.6) for AutoCAD 2004. Demands Existing and Future Demands Existing demands were updated in the model based on the meter locations. Existing demands were distributed within the model by association of each meter with the nearest node. For future demands it was assumed the demands at already developed parcels would remain relatively similar to existing demands unless significant redevelopment were anticipated, such as for the Highlands Redevelopment and the Boeing Plant Area. Within the model, the demands at nodes that had existing demands assigned to them remained consistent with the existing demands. Additional demands for future scenarios (the amount of demands greater than existing demands) were allocated to nodes that were associated with undeveloped parcels. Assigning Parcel· Based Demands to Nodes Associations between undeveloped parcels and the nearest node were made using ArcGIS and were made using the node and the centroid of the parcel. Associations were verified through visual inspection to ensure that parcels were not associated with nodes in other zones or across boundaries that were not accurate. Demand Sets and Scenarios Eleven new demand sets were created in the model and eleven scenarios were created based on those demand sets. There is an average day and peak day demand scenario for 2003, 2011, 2025, and buildout. An additional demand set and scenario was created for buildout average day demands associated with Boeing Redevelopment Alternative No.4. Alternative No.4 is the scenario with the highest level of growth anticipated, as defined in the Boeing Renton Comprehensive Plan Amendment Draft EIS. Model Update Methodology.doc 10/5/04 Appendix P Patterns Three new patterns were added to the model. A new diurnal curve based on year 2000 SCADA data was entered. It 'is the default pattern for the average day and peak day demand sets for running dynamic analysis. The pattern is a 24-hour time step. A pattern for Renton's peak hour demands was also created for steady state runs of one hour. The pattern is a single time step of one hour with a factor of2.32. A diurnal curve specific to Renton's wholesale customer Skyway was not available, so the City's diurnal curve was used for Skyway. Modeling Data The modeling and hydraulic data for the valves, pumps, and storage tanks were all reviewed to make any necessary clarifications or changes. This included valve settings, tank physical measurements, pump curve information, and pump rules. The . model was run with the updated demands and the existing modeling data to identify any problems. Calibration The City performed fire flow tests as part of this model update so that the most current data available could be utilized. Twenty sites were selected within the City's service area and for all but two of the sites two hydrants were flowed for each test. The sites were selected so that each of the City's pressure zones had at least one fire flow test and so that the locations were not near pump stations, valves, or storage facilities. The fire flow test locations are shown on Figure P-l. The fire flow test data is included as Table P-l. The model was calibrated by comparing the static pressure, residual pressure, and the drop in static to residual pressure between the fire flow test data and the model. Calibration of the model was performed by adjusting friction factors and by reviewing and changing where necessary the valve settings and pump station rules. As much as possible, the model was set to reflect the actual field settings at the time that the fire flow tests were run (i.e., tank water levels). However, because of limitations of the City's field data (i.e., the SCADA system does not measure PRY settings; whether they are closed or active), it was not possible to set up the model with all of the same conditions as occurred in the field during the fire flow test. This was one possible reason that model results may have still varied significantly (greater than 10 percent difference) from field results. Other factors could also be errors or inaccuracies in the field during the tests. For example, uncalibrated flow meters or errors in reading the equipment can impact the test results. The City plans to expand and improve what is measured by its SCADA system, which ~ill enable the City to have more accurate field data conditions for model calibration. The calibration results are provided in Table P-2. The level of calibration that was done for the model for this project was satisfactory for the hydraulic analysis that was performed for the Water System Plan. 2 R. W. Beck Model Update Methodology.doc 10/5/04 Hydraulic Analysis Water Model Update Methodology Analysis Results Hydraulic analysis results are presented in Chapter 8 of the Water System Plan and are not discussed here as well. Table P-3 presents some additional analysis results that are more detailed than what is required for Chapter 8. Table P-3 shows the fire flow analysis results from the model, which were identified to see if the distribution system could adequately meet fire flow demands throughout the system. Locations that have deficiencies by either not meeting pressure criteria, velocity criteria, or both were identified and specific node and pipe IDs from the model included. Model Update Methodology.doc 1015104 R. W. Beck 3 Table P-1 Field Fire Flow Tests for Calibration Priority Ref. No. Location Date Elevation Time Elevation Time 5 N 4th St. & Williams Ave. N 17-Nov-03 35 12:37 36.5 12:37 19 2 SW 10th St & Powell Ave SW 20-Nov-03 24.5 11 :50 23 11 :50 6 3 S 3rd PI btwn Rainier & Shattuck 20-Nov-03 34.5 13:30 34.5 13:30 17 4 SW 34th St. btwn Oakesdale & Lind 19-Nov-03 21 14:40 22.5 14:40 16 5 Ave. NW & NW 4th St. 19-Nov-03 102.5 12:47 80.5 12:47 10 6 Shattuck Ave. S & S 14th St. 19-Nov-03 68 10:16 52.5 10:16 18 7 Lincoln Ave. & NE 43rd PI. 20-Nov-03 57 10:32 49 10:32 7 9 17-Nov-03 121 13:12 130 13:12 11 10 Thomas Ave. & SW Langston Rd. 19-Nov-03 236 10:53 212 10:53 11 Aberdeen Ave. NE & NE 20th St. 17-Nov-03 293 10:07 285 10:07 2 12 Edmonds Ave. NE NE 17-Nov-03 250 10:39 NA NA 9 13 Jones Ave. S & 9th 19-Nov-03 344 9:55 NA NA 15 14 Mill Ave. S & S 27th St. 19-Nov-03 276.5 14:02 308 14:02 12 15 84th Ave. S & S. 123rd Place 19-Nov-03 244 12:16 326 12:16 13 16 Union Ave. SE & SE 3rd PI. 19-Nov-03 378.5 13:10 396.5 13:10 3 17 Shelton Ave. NE & NE 6th PI. 17-Nov-03 428 10:53 423 10:53 4 18 Duvall Ave. NE & NE 23rd 17-Nov-03 427 12:06 425.5 12:06 End of Dayton Dr SE, off of SE 19th St. (or 14 19 Edmonds Dr. SE & SE 21 st St.) 19-Nov-03 475.5 13:48 472 13:48 8 20 Monroe Ave. SE & Index Ave. SE 19-Nov-03 416 9:21 420 9:21 Page 1 of 2 Table P-1 Field Fire Flow Tests for Calibration Priority Ref. No. Location Elevation Elevation 5 N 4th St. & Williams Ave. N 33 36.5 19 2 SW 10th St & Powell Ave SW 23 23.5 6 3 5 3rd PI btwn Rainier & Shattuck 32.5 32.5 17 4 SW 34th 51. btwn Oakesdale & Lind 22.5 23 16 5 Taylor Ave. NW & NW 4th St. 119.5 175 10 6 Shattuck Ave. S & S 14th St. 178.5 137.5 18 7 :126 95 7 9 122 118 11 10 Thomas Ave. & SW Langston Rd. 232.5 200 1 11 Aberdeen Ave. NE & NE 20th St. 322.5 324.5 2 12 225.5 186 9 13 Jones Ave. S & 9th 367 396.5 15 14 Mill Ave. S & S 27th St. 373.5 370 12 15 84th Ave. S & S. 123rd Place 377 268.5 13 16 Union Ave. SE & SE 3rd PI. 402 390 3 17 Shelton Ave. NE & NE 6th PI. 420 421 4 18 Duvall Ave. NE & NE 23rd 457 456 End of Dayton Dr SE, off of SE 19th St. (or 14 19 Edmonds Dr. SE & SE 21st St.) 455 471.5 8 20 Monroe Ave. SE & Index Ave. SE 457 416 Page 2 of 2 Table P-2 Hydraulic Analysis Model Calibration Results (With Pipe Roughness Adjusted) Field Hydrant Test Results Analysis Model Results· Static Analysis Model Results· Fire Flow Difference Difference Calculated Field Difference Static Residual Static Hydrant Static in Static Static in Static Residual Pressure Pressure in Pressure Pressure Pressure Flow HGL EI. EI. Pressure Pressure HGL HGL Pressure Drop Drop Drop Priority Ref. No. Location Date Time (psi) (psi) (gpm) (tt) (tt) Node Zone (tt) (psi) (psi) (tt) (tt) (psi) (psi) (psi) (psi) Notes 5 1 N. 4th St. & Burnett Ave. 11/17/2003 12:36 PM 74 48 3,070 204 33 23148 196 27 73 -1 196 -8 57 16 26 -10 N. 1/2 blk from N. 3rd St., on Williams Ave. N. 11/17/2003 12:36 PM 67 55 3,070 191 36.5 J1000 196 31 72 5 197 6 59 13 12 1 19 2 1/2 blk N. of SW 10th SI., on Powell Ave. SW 11/20/2003 11:47AM 70 70 5,535 185 23 J202 196 17 77 7 195 10 69 8 0 8 Unlikely zero pressure drop in field Powell Ave. SW & 11/20/2003 11:47 AM 70 70 5,535 185 23.5 24213 196 17 76 6 193 8 68 8 0 8 6 3 Immediately N. of S. 4th SI. on Shaltude Ave. S. 11/20/2003 1:28 PM 70 45 5,300 194 32.5 440 196 26 73 3 195 1 67 6 25 -19 Field reading error possibly Rainier Ave. S. & S. 3rd PI. 11/20/2003 1:28 PM 68 64 5,300 190 32.5 13526 196 27 72 4 193 3 68 4 4 0 17 4 SW34thSt. & 11/19/2003 2:32 PM 72 67 5,730 189 22.5 19965 196 17 76 4 192 3 66 10 5 5 SW 34th St. & 11/19/2003 2:32 PM 80 70 5,730 208 23 19943 196 17 76 -4 192 -15 65 11 10 1 16 5 1/2 blk NW of NW 4th St on Taylor PI. NW 11/19/2003 12:46 PM 80 42 3,830 304 119.5 18330 270 111 83 3 303 -1 40 43 38 5 N. of NW 4th St on Lind Ave NW 11/19/2003 12:46 PM 50 26 3,830 291 175 J210 270 172 57 7 303 13 47 10 24 -14 10 6 S. 18th St & Morris Ave S. 11/19/2003 10:13AM 42 15 1,260 276 178.5 10752 300 174 51 9 292 17 38 13 27 -14 Btwn S. 15th St. & S. 18th St. on Davis Ave. S. 11/19/2003 10:13AM 58 26 1,260 271 137.5 J212 300 131 70 12 292 21 51 19 32 -13 18 7 Lincoln Ave. & NE 43rd PI. 11/20/2003 10:30 AM 85 20 4,780 322 126 J214 320 122 89 4 328 5 6 83 65 18 11/20/2003 10:30 AM 117 27 4,780 365 95 15275 320 73 111 -6 329 -36 28 83 90 -7 7 9 Talbot Rd. S & S 51st SI. 11/17/2003 1:10PM 100 68 5,605 353 122 608 350 108 105 5 351 -2 59 46 32 14 11/17/2003 1:10PM 102 70 5,605 354 118 J216 350 112 104 2 352 -1 53 51 32 19 11 10 Thomas Ave. SW & SW Langston Rd. 11/19/2003 10:48 AM 65 17 2,675 383 232.5 13843 370 228 69 4 388 5 53 16 48 -32 Possibly additional field tests in the future Thomas Ave. SW & SW 3rd PI. 11/19/2003 10:48 AM 76 30 2,675 376 200 23289 370 191 85 9 387 11 67 18 46 -28 1 11 NE 27th SI. & Edmonds Ave. NE 11/17/2003 10:04 AM 52 38 5,300 443 322.5 10092 435 315 53 1 437 -5 27 26 14 12 N of NE 28th SI. 11/17/2003 10:04 AM 49 39 5,300 438 324.5 15146 435 319 51 2 437 -1 26 25 10 15 2 12 Windsor Way NE & Windsor PI NE 11/17/2003 10:38 AM 93 77 2,885 440 225.5 14338 435 220 95 2 439 -1 86 9 16 -7 Windsor Way NE, btwn Windsor PI. NE & Broadway NE 11/17/2003 10:38 AM 106 96 2,885· 431 186 J224 435 180 112 6 439 8 103 9 10 -1 9 13 S. 9th SI. & High Ave. S. 11/19/2003 9:42 AM 53 40 2,315 489 367 12401 490 361 61 8 502 12 48 13 13 0 Control Set = Base; Tank Set = Calib#13 Jones Ave. S. & S. 11th SI. 11/19/2003 9:42AM 40 22 2,315 489 396.5 23487 490 392 48 8 503 14 34 14 18 -4 15 14 l04th Ave. SE & S. 31st SI. 11/19/2003 2:01 PM 50 26 4,550 489 373.5 24435 490 366 62 12 509 20 39 23 24 -1 Cedar Ave S., btwn S. 31st St. & S. 26th SI. 11/19/2003 2:01 PM 48 20 4,550 481 370 J226 490 364 63 15 509 28 42 21 28 -7 12 15 W. end of S. 123rd PI., W. of 84th Ave. S. 11/19/2003 12:10 PM 40 9 4,680 469 377 21171 495 375 45 5 479 9 11 34 31 3 1/2 blk W. of 84th Ave. S. on S. 122nd SI. 11/19/2003 12:10 PM 90 .. 38 4,680 476 268.5 J232 495 256 97 7 480 4 45 52 52 0 13 16 1/2 blk E. of Anacortes Ave SW, on SE 3rd PI. 11/19/2003 1:07PM 70 30 3,815 564 402 J236 565 397 73 3 565 2 22 51 40 11 W. of Anacortes Ave. SE, on SE 4th SI. 11/19/2003 1:07 PM 70 32 3,815 552 390 12764 565 385 78 8 565 13 29 49 38 11 3 17 Tacoma Ave. NE & NE 6th PI. 11/17/2003 10:52 AM 60 32 3,840 559 420 J238 565 414 65 5 564 5 38 27 28 -1 NE 6th SI. & Shelton Ave. NE 11/17/2003 10:52 AM 58 33 3,840 555 421 22420 565 415 64 6 562 7 41 23 25 -2 4 18 140th Ave. SE & SE looth SI. 11/17/2003 12:05 PM 42 28 3,330 554 457 21834 565 453 48 6 563 9 18 30 14 16 NE 23rd SI., btwn Elma Ave. NE and Graham Ave. NE 11117/2003 12:05 PM 44 19 3,330 558 456 J240 565 450 49 5 563 5 27 22 25 -3 14 19 E. end of Dayton CI. SE, E of Dayton Dr. SE 11/19/2003 1:38 PM 56 24 2,510 584 455 24055 590 450 102 46 686 102 39 63 32 31 High static pressure in model SE 22nd PI. & Aberdeen Ct. SE 11/19/2003 1:38 PM 50 18 2,510 587 471.5 12122 590 465 96 46 687 100 37 59 32 27 due to Rolling Hills BPS 8 20 NW of SE 19th Ct & Pierce Ave. SE 11/19/2003 9:19AM 56 20 4,170 586 457 18540 590 453 97 41 677 91 6 91 36 55 High static pressure in model 8 Pierce Ave SW & Olympia Ave. SE 11/19/2003 9:19AM 80 40 4,170 601 416 11944 590 411 115 35 677 76 24 91 40 51 due to Rolling Hills BPS Note: A more detailed calibration will be possible with additional system monitoring, which the City is planning during the next several years. System monitoring will include measuring flow at PRVs, improved flow measrurements at all tanks and pump stations. Table P-3 Deficiencies Meeting Required Fire Flow HeqUirea AV811801e !-Ire Node Fire Flow Flow at 20 psi Zone Fire Flow No. & Location No. (gpm) (gpm) Analysis Results/Deficiencies - 1. 4050 Maple ValJey Highway 196 !(Maplewood Golf Course Clubhouse) 18349 3,000 2,800 19 psi pressure at critical node 18349 2. South of Martin Luther King Jr. Way & 68th 196 Ave.S 18737 3,000 3,000 19ft1sec velocity (pipe 10=3865), existing 8", 66 ft length; (west of 68th Ave. S) 196 3. NE of Card Rd. S & Talbot Rd. S 11456 3,000 3,000 11 ftlsec velocity (pipe 10=1149), existing 8", 166 ft length; (east-west segment of 98th Ave. SE) 4. Park Ave. N, between N 6th St. & N 8th St. (Boeing Plant) 15460 6,000 6,000 11 ftlsec velocity (pipe 10=3518), existing 12", 382 ft length 196 17 ftlsec (pipe 10 = 2886), existing 12", 62 ft length; (N 8th St, from Garden to Park) 5. NW 4th SI. & Taylor Ave. NW 5 psi pressure at critical node (10=23348) at dead end main (NW 2nd St, west of Taylor Ave. NW); (Sky Lanai Apartments, West Hill/Earlington) 10 ftlsec velocity (pipe 10=886), existing 8", 287 ft length (NW 4th St., from Maple Ave. NW to Taylor Ave. NW); 9.6 ftlsec velocity (pipe 10=2456), existing 8", 244 ft length (NW 4th St., from Lind Ave. NW to Maple Ave. NW); 11098 3,000 900 9.7 ftlsec velocity (pipe 10=3690), existing 6", 221 ft length (Taylor PI. NW, from Lind Ave. NW to NW 5th St.); 9.7 ftlsec velocity (pipe 10=3689), existing 6",175 ft length (Taylor PI. NW, from NW 5th St. to NW 4th St.); 12 ftlsec velocity (pipe 10=886), existing 12", 287 ft length (Taylor PI. NW, from NW 4th St. to Maple Ave. NW); 8.3 ftlsec velocity (pipe 10=3691), existing 6", 268 ft length (Taylor PI. NW, from Maple Ave. NW to just northwest 300WH of Taylor Ave. NW) 6. Morris Ave. S & S 18th SI. (West Talbot 10752 1,500 1,500 300 Hill) Velocity and pressure within the zone meet service criteria 7. North of Lincoln Ave. NE & NE 36th SI. ::5 pSI pressure at critical node 21955 (dead end on Lincoln Ave. Nt at NE 35th Pl.); 19 ftlsec velocity (pipe 10=12044), existing 8",107 ft length (Lincoln Ct., east of Lincoln Ave. NE); 876 3,000 2,300 8.5 ftlsec velocity (pipe 10=1051), existing 12", 1,082 ft length (Lincoln Ave. NE, NE 40th SI. to Lincoln Ct.); 8.6 ftlsec velocity (pipe 10=2849), existing 12", 469 ft length (NE 40th St., Jones Ave. NE to 1 block west of 320 Lincoln) 320 8. N 29th St. & Park Ave. NE 16250 1,500 1,500 Velocity and pressure within the zone meet service criteria 9. East of Garden Ave. N & N 6th St. 17264 3,000 3,000 320 tpaccar Kenworth Plant) 8.5 ftlsec velocity (pipe 10=3426), existing 12",291 ft length 10. Lake Washington Blvd., between N 40th Negative pressures in the model at critical node 16506 (dead' end near 11th PI. SE & SE 77th Pl.) SI. & N 50th St. 11.7 ftlsec velocity (pipe 10=4818), existing 12", 1,811 ft length & (pipe 10=2813), existing 12", 371 ft length (Lk (Barbee Mill/Port QuendalJ, 21918 5,500 4,400 Washington Blvd., northwest of 43rd) Highlands/Kennydale) 10.6 ftlsec velocity (pipe 10=2847), existing 8", 896 ft length (Jones Ave. NE, NE 40th SI. to NE 43rd St.) 10 ftlsec velocity (pipe 10=3161, 3162, 3163), existing 8", 865 ft length (Jones Ave. NE, east of NE 43rd St.) 320 ... -~~ 9.6 ftlsec velocity (pipe 10=2842), existing 12", 372ft length (north & east of N. 40th St. & Meadow Ave. N) Page 1 of 3 Table P-3 Deficiencies Meeting Required Fire Flow HeqUirea AvaliaDie ... Ire Node Fire Flow Flow at 20 psi Zone Fire Flow No. & Location No .. (gpm) (gpm) Analysis ResultslDeficiencies 11. NE of S 55th SI. & Talbot Rd. S 2066 3.000 3.000 12.3 fUsec velocity (pipe 10=13418). existing 10". 98 ft length 350 8.5 fUsec velocity (pipe 10=13416). existing 12 .... 599 ft length (South Talbot Rd .• S. 51st Ct to 54thl 12. Talbot Rd. S & S 27th St. (Valley Medical 10745 6.000 6.000 8.4 fUsec velocity (pipe 10=650. 1590. 1091. 1090). existing 8". 92 ft length (S 23rd St. west of Talbot Rd.S. near 350 Center· S. Talbot Hill) Seattle PRV) 13. North of SW 3rd PI. & Powell Ave. SW 1.500 10 fUsec velocity (pipe 10=2160). existing 8". 398 ft length (Raymond Ave. NW. NW 3rd SI. and NW 2nd St.) 23284 1.500 370 (Earlington) 13.5 fUsec velocity (pipe 10=5007). existing 8".17 ft length (S.134th St.) 435 14. Kirkland PI. SE & SE 4th St. J158 1.500 1.500 Velocity and pressure within the zone meet service criteria 435 15. NE 27th St. & Camas Ave. NE 21980 1.500 1.500 Velocity and pressure within the zone meet service criteria 435 16. North of NE 10th PI. & Sunset Blvd NE 620 3.000 3.000 Velocity and pressure within the zone meet service criteria 17. NE 4th St.. west of Monroe Ave. NE 426 3.000 3.000 435 I(Renton Technical Colleqe) Velocity and pressure within the zone meet service criteria 18. S 7th St.. west of Jones Ave. S 18379 1.500 1,100 9.6 fUsec velocity (pipe 10=1819). existing 8". 618 ft length (SE 7th Ct.) 490 Pressures less than 20 psi (critical node 10=2082t 19. S 18th St.. between Eagle Ridge Dr. & Grant Ave. S 17.5 fUsec velocity (pipe 10=685. 5124). existing 8". 397 ft length (S 18th St.! Eagle Ridge Dr. to Thomas Ln. S) (Eagle Ridge Apartments' Rolling 14.7 fUsec velocity (pipe 10=444.441. 439. 5126). existing 8". 811 ft length (S 18th St.. Grant Ave. south to Hills/Renton Hill) 23905 5.000 3,600 Thomas Ln. S) 9 fUsec velocity (pipe 10=12250. 1453. 1465). existing 12". 919 ft length (Grant Ave. S .• Puget Dr. south to S 18th St.) 490 Pressures less than 20 psi (critical node 10=23905. 23487) 20. 82nd Ave. S & S 124th St. 9.6 fUsec velocity (pipe 10-2478). existing 8". 700 ft length (S 123rd PI.. west of 84th Ave.S) 21171 1.500 1,000 9.7 fUsec velocity (pipe 10=2477). existing 8". 267 ft length (84th Ave. S .• S 124th PI. to S 123rd Pl.) 495 Pressure less than 20 psi (critical node ID=21171) at dead end main 565 21. Hoquiam PI. NE & 19th St. 21819 1.500 1,300 Pressure less than 20 psi (critical node ID=11268) at dead end main 22. NW of Hoquiam Ave. NE & NE 10th St. 8.5 fUsec velocity (pipe 10=11940. 578). existing 12". 309 ft length (NE 12th SI.) (Hazen High School)3 790 3.000 1,500 8.8 fUsec velocity (pipe 10=2510). existing 8". 112 ft length (Duvall Ave. NE. from NE 12th SI. to SE 112 SI.) 565 cannot meet minimum pressure req~irements 23. NW of NE 4th SI. & Monroe Ave. NE 22463 3.000 3.000 565 I (Renton Technical Colleqe) Velocity and pressure within the zone meet service criteria Page 2 of 3 Table P-3 Deficiencies Meeting Required Fire Flow HeqUirea AvallaOle tire Node Fire Flow Flow at 20 psi Zone Fire Flow No. & Location No. (gpm) (gpm) Analysis Results/Deficiencies 24. West of Union Ave. SE & SE 4th St. 11.4 ftlsec velocity (pipe 10;::1748), existing 8", 692 It length (Madrona Dr., Alder Dr. to Hemlock Pl.) • (Highlands) 12940 3,000 3,000 8.7 ftlsec velocity (pipe 10;::1750), existing 8", 260 It length (Alder Or., SE 4th St. to Madrona Or.) 565 10.7 ftlsec velocitv (pipe 10;::1741), existing 8",121 It length (Pine Dr., Redwood Dr. to Hemlock Dr.) 25. Union Ave. NE & NE 4th SI. (QFC -14055 5,000 5,000 565 Highlands) 9.9 ftlsec velocity (pipe 10;::13082), existing 12", 10 It length (Union Ave. NE, just south of NE 4th SI.) 26. Pierce Ave. SE & SE 19th CI. 9.6 ftlsec velocity (pipe 10-3797, 4720, 4721), existing 8", 854 It length (Pierce Ave. SE, Olympia Ave. SE to SE 18540 1,500 1,400 19th Ct.) 8.3 ftlsec velocity (pipe 10;::679), existing 8", 418 It length (Kirkland Ave. SE) 590 Pressures less than 20 psi (critical node 10;::10789) 27. East of Benson Rd S & S 23rd SI. 12.7 fUsec velocity (pipe 10;::1204), eXlsling 8,379 n lengtn (Fred Nelson Middle School) 13.7 ftlsec velocity (pipe 10;::1200), existing 8", 427 It length 1544 3,000 2,600 24 ftlsec velocity (pipe 10;::12824), existing 6", 52 It length 9.7 ftlsec velocity (pipe 10;::1201), existing 6", 488 It length 590 Pressures less than 20 psi near the Middle School 28. Royal Hills Or. & Monroe Ave SE (Roiling Hills Apartments) 23726 5,000 5,000 8.8 ftlsec velocity (pipe 10;::1355), existing 12", 633 It length (Monroe CI. SE, Royal Hills Dr. to Monroe Ave. SE) 590 9.3 ftlsec velocity (pipe 10;::11512, 5110), existing 12",682 It length (Puget Dr. SE, from Rolling Hills Tanks NE) -- Notes: 1. Minimum desired fire flow for single-family residential is 1,000 gpm for 1 hour for properties less than 3,600 sq It, and 1,500 gpm for 2 hours for properties equal to or larger than 3,600 sq It. 2. Non-residential and multi-family maximum desired fire flow was provided by the City Fire Marshall. 3. 2,000 gpm to be supplied by the City and 1,000 gpm to be supplied by Water ~istrict No. 90. 4. More detailed hydraulic analysis results are included in Appendix H. Page 3 of 3 Lake Washington R:ISeatUelll-00880-10000-0001 City of Renton Water System PlanlGISlmapfileslReport Figureslfire_flow_location_figure,mxd 'vet OdCI~ --- .--.... --.-. , . • • • /j': ~:, , ',f' i t i ~ " , Lake ,Youngs r----t-\t----+--~ -0-~. :~_.~.~. __ ~_- --------------~I----------------~--, Kent ---~ -----~ ---Tukwila _ ......... "'!! Legend CD Fire Flow Test Location {} and Reference Number c c c Current Service Area ••• Urban Growth Boundary ~ Renton City Limits City Limits 0 Water Body Pressure Zone D 196 D West Hill 300 D 300 D 320 D 350 0 370 D 395 D 435 D 490 D 495 D 565 D 590 ___ -====::::::1 Miles o 0,5 1 Figure P-l Fire Flow Test Locations for Calibration Water System Plan Renton, Washington " ' ." • .r" \\ ',:i'" ,,' '~ , ' , -'.'. . , ",; . , ' ", :..; . ::-': ,.:'; "-.~ r/" ",.' " ," ~ ",~. ~. -I (, .J,; ';.' ~-.' ....... '-"; " , (~}::/}:)'\' :~ '~. ; :::~: :., " .' ;,'App'endi~'Jl: \lVELIiHfAI1'~RbtECTiON~R(j~AAM'< ::.-' J~>,s>:;: :~);~:. ~ ." , -,.:.,>\! ~', '_:::". <~, ~;'J:.;;., ~·lf·· , : ~Hr;i~:/:~' ,~ .. ,' "-/" /- ;' .. {'; ';-~ ',' . , , : \ ' -:\ . -' ~ ',.:1 : / '/ :, .,.'. '\ .. " '. (',,. ,;\ '. ~, ",' ~), '. "'''. ' -.} . ' .. '- I; .;~, . ',:' ......... ,'; :"~ , . :,'\> ,-.-. "'-'. ,',' .'.~.,,;, " , »~; ..... or) ., .' ' -'r' ';: ';:'.' /.' , , -:. ", I' '.;-;" , -",' .. ! " ,-j' , .. /\~ ::t, ~\f, ~~~~,,:::, ;'" '" ~ , ~. ,,:,',ARP'e,n~br R,-' , , ' -~, ' ; ,.: . , ' •• : "'::::,::,;:' ,,~:~' /:;",;"I',',~\:~:'\), <:",'~j,'<, (:t':,:':,;;:".jo:'/''::':,\', ' :;> ~:",,,,;::, \>.::' > • ;-:'l?f.6jectedArihual'Cusfoniers and:,Corisiliription;" ',,:,.:::' :'\::;::::::;~', :;~:';" '-:':~; <..;' :'>'''r~' <"'~~:;~', ,~'::~ . :: ':""'0( ~, '. ',' Pi~je'~h~d Ann:llaJ~bebt S~riric~ cPaYm~rits' ..-. _ ' . , .; I,;." .' ~ f • ":,' ..... ~.; _ ~ i I ' <.:. . .' ~ J .. ~ . '. ":-... --:,,': ..I' .' " ,'~; : , , '~, " , " ',' ,l' r' ,< ..... -._. ,-"',.-, " ,<' ,i "''"'''- I, ,(':,' '·7 /f' . . '1_ 'j' :'( ,,; .' , .. ,' :', , ~ . ~':' ' .... ' ".,.' . -t' "., '" ,~, '\ ',.,' "',', -;'~' " , , _ '_,' ~ .' J . , t '. ',," :, " ,.'. 'r' '.~. ,.: . .', :~":( ';,'.: "\ ," I 2013 Customers Single-F amily 13,016 Seniors 225 Multifamily 1.939 Commercial 1,791 Industrial 106 Wholesale 1 Private Fire 598 17,676 Consumption (CCF) Single-F amily 1,176,583 Seniors 2,680 Multifamily 1,039,168 Commercial 1,199,870 Industrial 294,583 Wholesale 93,999 Private Fire 36,905 3,843,790 Note: Appendix R Financial Program Data 2014 2015 13,133 13,251 227 229 2,008 2,080 1,833 1,876 108 111 1 1 612 626 17,922 18,174 1.183,290 1,190,035 2,696 2,711 1.072,733 1.107,383 1,223,627 1.247,855 300,416 306,364 94,845 95,691 37,636 38,381 3,915,243 3,988,420 Details for the basis of the customer and corrvided for the Chapter 4 analysis, so year by year totals of customers and consumption w. 11-00880-10000-1301 Summary Draft Printed: 1011/2004 City of Renton· Water Sytem Plan Projected Annual Debt Service Payments 2005 2006 2007 2008 2009 2010 2011 Existing Debt Service Bonds (1) $1,621,943 $1,626,812 $1,629,015 $1,629,600 $1,596,127 $1,578,013 $1,544,102 PWTF Loans (1) 135,266 134,407 133,548 132,688 131,828 130,969 130,109 Total Existing Debt Service $1,757,209 $1,761,219 $1,762,563 $1,762,288 $1,727,955 $1,708,982 $1,674,211 New Debt Service Bonds 2004 Series (2) $255,083 $255,083 $255,083 $255,083 $255,083 $255,083 $255,083 2006 Series (2) 0 64,573 110,696 110,696 110,696 110,696 110,696 2008 Series (2) 0 0 0 130,065 222,968 222,968 222,968 2010 Series (3) 0 0 0 0 0 471,776 471,776 2012 Series (3) 0 0 0 0 0 0 0 2014 Series (3) 0 0 0 0 0 0 0 Total New Bonds Debt Service $255,083 $319,656 $365,779 $495,844 $588,747 $1,060,523 $1,060,523 PWTF Loans $12,875 $296,803 $295,448 $294,092 $292,737 $291,382 $290,027 Total New Debt Service $267,958 $616,459 $661,227 $789,936 $881,484 $1,351,905 $1,350,550 Total Debt Service $2,025,167 $2,377,678 $2,423,790 $2,552,224 $2,609,439 $3,060,887 $3,024,761 Notes: (1) Source: City (2) R. W. Beck, Inc. modified the size of the debt issuance and adjusted the projected debt service payment proportionately to the debt service schedule provided by the City. (3) Based on levelized principal and interest payment over a 20-year repayment period at an interest rate of 7.0%. 11-00880-10000-1301 Summary R.W. Beck, Inc. 2012 2013 $1,545,663 $737,148 129,250 128,390 $1,674,913 $865,538 $255,083 $291,483 110,696 223,196 222,968 457,568 471,776 471,776 471,776 471,776 0 0 $1,532,299 $1,915,799 $288,671 $287,316 $1,820,970 $2,203,115 $3,495,883 $3,068,653 Appendix R Financial Program Data 2014 $612,941 127,531 $740,472 $335,082 224,371 458,532 471,776 471,776 519,916 $2,481,453 $285,961 $2,767,414 $3,507,886 2015 $609,899 126,672 $736,571 $340,680 222;583 458,551 471,776 471,776 519,916 $2,485,282 $284,606 $2,769,888 $3,506,459 Draft Printed: 10/1/2004 ,r,._"" ;' .,'c, .'. :-'--' , '/ , ' ' ':,.'-"