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HomeMy WebLinkAboutMisc• ~ King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, WA 98057-5212 206-296-6600 TIY 206-296-7217 May 14, 2008 Jennifer Reiner CamWest Development 9720 NE 1201h Place, Suite 100 Kirkland, WA 98034 RE: Plat of Martin (DOES File No. L05P0019l Recreation Space Plan Activity No. L08MI014 Dear Ms. Reiner: • This is in response to your February 2, 2008 request for approval of. the landscape and recreation space. plan for the Plat of Martin and the additional information received May 5, 2008. We have reviewed your submittal, and with the following conditions and additions, approve it as submitted: 1. The equipment (structures, benches, picnic table, etc.) shall meet at a minimum, Consumer Product Safety Standards and be appropriately anchored. 2. Walkways/Trails shall be installed from the sidewalk to the play areas. Walkways shall be constructed of a material and grade that is Americans with Disabilities Act (ADA) accessible. 3. Street trees, significant tree retention, if any, shall be reviewed with the engineering plans and are not part of this approval. A revised recreation/landscape plan may be required, in the event modifications associated with a significant tree plan and/or drainage facilities are required The landscaping and recreation space improvements (i.e. play structures) must be installed and inspected or a performance bond posted, prior to plat recording. The amount of the bond has been established at $15,716.22. This includes landscaping, equipment, surfacing materials, etc. The bond amount includes a thirty-percent contingency, and fencing. An inspection fee is also due prior to recording. This fee covers the cost of an installation inspection and a maintenance inspection. The amount of the inspection deposit will be MAIN FILE COpy • • determined by the Land Use Inspection Section (LUIS). If a performance financial guarantee is posted, the improvements must be installed within two year's from the date of recording. At the time of inspection by the Land Use Inspection Section, if the improvements are fully installed per the approved plan, the performance financial guarantee may be reduced. Enclosed is a copy of the approved plans and bond quantity worksheet for your records. If you have any questions, please call me at (206) 296-6673. If you have questions regarding the financial guarantee please contact Carol Rogers at (206) 296-7250. Questions regarding the inspection process may be directed to the Land Use Inspection Section (206) 296-6642. annon Dorr Project/Program Manager II Current Planning Section Encl: Approved recreation plan, approved May 14, 2008 Bond Quantity Worksheet, approved March 14, 2008 Cc: Carol Rogers, Fiscal Specialist Ill Joanne Carlson, Administrative Assistant II Steve Townsend, Engineering Supervisor File ! • LANDSCAPE BOND QUANTITY FORM King county PROJECT NAME: Martin Property: Tract B Department of Development .;._..;.;;.;;.;;;;,.;;.;;..;,,;,;..;;.;,;.;;;;... ______ .;,,;,;,;.;;;..;;..;,,;,..;.;;.:;;.;.,;.;.:.;..;,,;,;;;,,;.,;_;;;_ ___ _ ~:.~:.~~n!e~IIE u 'o/j [E, fR~ES PROJECT#: REC/LA Activity No. L08MI014 "[FiJ IY".;.;-D;;_D;;_R;.;E;;;.S;;_S;;_: ________ s;;.E;;;.a.;.1;;;.25;;..;t;.;h..;S.;;tr..;e.;;et.;.:.;..;.K;;;in..;.::g:....C;;..;..._ __ MAY O 5 2008 PREPARED BY: Mei-shiou Lin, Triad Assoc. _____ .;.;. ______ ..;..;.;...;,,;,.;.;.;;...;;;;.;.;.;...;..;.;.;;;.;;..;.;.;.;;;.;;.;;.;..._ K.C. D.D.E.S. DATE PREPARED: 4/24/2008 DRAWING DATE: 4/24/2008 Bonds are based upon required landscaping only and will be posted for performance and/or maintenance. Required landscaping includes perimeter landscaping, surface parking area landscaping, (KCC 21A.16) and any landscaping required by SEPA environmental review. The maintenance period is for the life of the project, however, after posting for maintenance, the performance bond will be reduced by 30% ($1,000.00 minimum) and be held for a two year period. Upon re-inspection of the site the bond will be released if the site has been properly maintained (21A.16.180). If the project has not been maintained and there are dead trees, shrubs, ground cover, or other deficiencies noted in HYDROSEEDING: LAWN $50.00 0.00 HYDROSEEDING: INFILTRATION PONDS $50.00 8.10 AQUATIC PLANTS $500.00 1.15 RAIN GARDEN PLANTING $500.00 2.12 SHRUB PLANTING AREA HYDROSEEDING. $50.00 8.78 SOIL PREPARATION Tract C A. TOPSOIL: SHRUB & TREES (8 INCHES DEEP) $25.00 CY CUBIC YARD) 0.00 TOPSOIL: LAWN AREA 4 INCHES DEEP $25.00 CY CUBIC YARD 0.00 B. MULCH (2 IN. $24.00 CY CUBIC YARD 0.00 C. PEAT MOSS TWO INCHES DEEP) $2.30 0.00 D. COMPOST 3" deep & lillin included w/plant'g $26.00 0.00 E. FERTILIZER: included w/tree and shrub plant'g $6.67 CY (CUBIC YARD 0.00 PLANT MATERIALS A. DECIDUOUS TREES (21 street trees are Included In significant tree bond) 2.0· CALIPER minimum hei ht 10') $250.00 COST&LABOR 0.00 1.75~ CALIPER minimum hei ht 10') $200.00 COST& LABOR 0.00 MULTI TRUNK minimum hei ht 6' $120.00 COST & LABOR 0.00 B. EVERGREEN TREES {16 coniferous trees are Included In s)gniflcant tree bond) $150.00 COST &LABOR 0.00 C. SHRUBS 5 Gallon) $45.00 COST & LABOR 0.00 C. SHRUBS (2 Gallon) $30.00 COST & LABOR 149.00 SHRUBS (1 gallon) $10.00 COST & LABOR 43.00 $405.00 $575.00 $1,060.00 $439.00 $0.00 $4,470.00 $430.00 SUB TOTAL BOND AMOUNT BOND AMOUNT SUB TOTAL: AGE 1 OF 3 MAIN FILE COPY $7,379.00 ., $4.00 COST&LABOR 0.00 MISCELLANEOUS TREE STAKES: included w/ tree planting $2.65 PER STAKE & LABOR 0.00 FENCING LINEAR FOOT 2 rail wood fence $7.00 INCLUDES LABOR 130.00 $910.00 IRRIGATION IRRIGATION: $0.50 SQUARE FOOT 0.00 Tempora Irrigation: Tract B $0.20 SQUARE FOOT 19,002.00 $3,800.40 ADDITIONAL ITEMS SURFACES CONCRETE PAVING/ WALK $25.00 Sq. Yd. 0.00 PLAYGROUND EQUIPMENT: All Unit Prices Include delive and Installation PLAY STRUCTURE $9,183.00 LS (LUMP SUM) 0.00 PLAY SURFACING 12 INCH DEPTH) $2,106.00 LS (LUMP SUM) 0.00 PLAY SURFACE PERIMETER EDGING $14.00 LF INCLUDES LABOR) 0.00 SUB TOTAL BOND AMOUNT BOND AMOUNT SUB TOTAL: $4,710.40 PAGE 2 OF 3 ·' • • SITE FURNISHINGS: All Unit Prices include delivery and installation WOOD BENCHES $540.00 EACH 0.00 PICNIC TABLE $1,075.00 EACH 0.00 THIRTY-PERCENT CONTINGENCY FEE $3,626.82 TOTAL BOND AMOUNT $15,716.22 Note: 1. Bond quantity for street trees and replacement trees are included in Significant Tree and Recreation tract quantity worksheet. 2. Landscape improvements in tracts A & C are bond separately in recreation plan quantity worksheet. PAGE 3 OF 3 ------ 1 .. t, w King County Department of Development and Environmental Servi_ces Land Use Services Division 900 Oakesdale Avenue Southwest Renton, WA 98057-5212 206-296-6600 TIY 206-296-7217 www .kinqcounty.gov April 22, 2008 Gerald Buck Triad Associates 12112 1151h Ave NE Kirkland WA 98034-6929 RE: Recreation Plan for Martin Plat DOES Activity No. L08MI014-L05P0019 Dear Mr. Buck: On March 17, 2008, our office requested additional information in order to complete the review of the landscape and recreation plan for the plat of Martin. To date, we have not received this information. Therefore, this project is ori hold until this information is received. If the additional information is not received by July 7, 2008, a new submittal will be required prior to engineering plan approval. If you have questions or need additional information, please call me at (206) 296-7167. Sincerely, -"£1A:a~ -Wrn~~a:ssen, PPM Ill Current Planning Section Cc: Jennifer Reiner, CamWest Development Inc Pete Dye, P.E., Senior Engineer, Engineering Review Section, LUSD File MAIN flLE COPY tQ • King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, WA 98057-5212 206-296-6600 TTY 206-296-7217 www.kingcounty.gov March 17, 2008 Gerald Buck Triad Associates 12112 115ht Ave NE Kirkland, WA 98034-6929 RE: Recreation/Landscape Activity No. L08MI014 Plat of Martin -Preliminary Plat# L05P0019 Dear Mr. Buck: • This letter is in response to your February 22, 2008 submittal for the landscape and recreation plan of the Plat of Martin. I have reviewed your submittal, and request the following additional information to complete our review. 1. Revise Plans to include fencing along the street frontage of Tract "C". 2. Revise the bond quantity worksheet to include fencing noted above. Please submit 9 copies of revised documents and sets of recreational plans for our records. If you have any questions regarding this request for information, please call me at (206) 296-7114 or e-mail at karen.scharer@kingcounty.gov. cc: im Claussen, Program Manager Ill, Current Planning Section, LUSD via e-mail Pete Dye, Sr. Engineer, Engineering Review Section, LUSD via e-mail Jennifer Reiner, Camwest Development Inc., 9720 NE 1201h Pl., Suite 100, Kirkland, WA 98034 File L08MI014 MAIN FILE COPY • Scharer, Karen From: Sent: To: Subject: Scharer, Karen Monday, March 17, 2008 10:40 AM Claussen, Kimberly; Dye, Pete FW: Martin Recreation Plan: #L08MI014 Attachments: 108mi014 Rec. Plan more info fence.doc Letter asking for fencing along street Karen J. Scharer, PPM JI karen.scharer@kingcounty.gov 206-296-7114 From: Scharer, Karen Sent: Monday, March 17, 2008 10: 16 AM To: 'Mei-shiou Lin' Cc: Gerry Buck Subject: RE: Martin Recreation Plan: #L08MI014 I'm sorry I didn't catch this before. I hate wasting paper. Karen J. Scharer, PPM II karen.scharer@kingcounty.gov 206-296-7114 -·-·-------------·--------------·--·---··--· From: Mei-shiou Lin [mailto:mlin@triadassociates.net] Sent: Thursday, November 15, 2007 5:22 PM To: Scharer, Karen Cc: Gerry Buck Subject: RE: Martin Recreation Plan: #L07MI065 Hi Karen, • Page 1 of2 Thank you for meeting with me this morning. I appreciate your time and input on this project. I've since updated the Bond Quantity Form for the Recreation Plan to include the four coniferous trees (two·of them replacement trees). The updated document is attached for your review and approval. Please feel free to call me at 425-821-8448 if you have questions and comments. Thanks again, Mei-shiou From: Scharer, Karen [mailto:Karen.Scharer@kingcounty.gov] 03/17/2008 • Sent: Tuesday, November 06, 2007 2:58 PM To: Mei-shiou Lin Subject: RE: Martin Recreation Plan: #L07MI065 10 AM on Thursday, Nov.15th has been scheduled. See you then. Karen J. Scharer, PPM II karen.scharer®kingcounty.gov 206-296-7114 From: Mei-shiou Lin [mailto:mlin@triadassociates.net] Sent: Tuesday, November 06, 2007 2:21 PM To: Scharer, Karen Cc: Gerry Buck Subject: Martin Recreation Plan: #L07MI065 Hi Karen, • Page 2 of2 Thanks for you voice mail regarding our next Monday's meeting. Next Wednesday 1 :00 PM does not work for me. Are you available next Thursday or Friday? I can do anytime on those two days. We've delivered 8 sets of revised recreation plans and required document to the County this afternoon. They should have arrived. If you can get a chance to take a look at what we submitted before our meeting will be great. Please let me know if you have any questions or additional comments. I'll call to check a possible meeting time. Talk to you soon, Mei-shiou Lin, ASLA Associate, Landscape Architect Triad Associates 12112 115th Ave NE Kirkland, WA 9803"1 P: 425,821.H448 F: 425.82.1.348.1 E: m!in(ii~triadassociates,net W: W_V'!_WctriaQa_ssp_cLatcs. net 03/17/2008 . ; ... -.. King County K.C. on E ~ Department of Development and Environmental"S-ervtc:es 900 Oakesdale Avenue Southwest ------------1 • Web date: 06/28/2007 CERTIFICATION OF APPLICANT STATUS Renton, Washington 98057-5212 206-296-6600 TIY 206-296-7217 For alternate formats, call 206-296-6600. Permit Number: L01 Sl2QI \ Permit Name: FOR INDIVIDUALS: Activity Number: _L_t'.~~~//1~,Z~o~t-+1--- I, (print name), hereby certify that I am the/an owner of the property which is the subject of this permit. If I am not the sole owner of the property, I certify that I am authorized to represent all other owners of the property. My mailing address is: I further certify that I am the "Applicant" for this permit and as such am financially responsible for all fees and will receive any refunds paid. I shall remain the "Applicant" for the duration of this permit unless I transfer my "applicant" status in writing on the form provided by DOES. * Signature of Applicant Date Signed ' -OR- I, (print name), hereby certify that I am an authorized agent of C. , , a corporation or other business association authorized to do business in he State f Washington, which is the sole owner of the property that is the subject of this permit. If this corporation or business association is not the sole owner of the property, I certify that this corporation/business association is authorized to represent all other owners of the property. The mailing address of this corporation/business association is: (1110 f.)e: l ?.Jk Pi~ I further certify that the above named corporation/business association is the "Applicant" for this permit and as such is financially responsible for all fees and will receive any refunds paid. This corporation/business association shall remain the "Applicant" for the duration of this permit unless it transfers its applicant status in writing on the form provided by DOES . . * * By signing as the Applicant or the Applicant's Agent, I certify under penalty of perjury under the laws of the State of Washington that the information provided above is true and correct. MAIN FILE COPY CertApplicantStatusFORM.doc lc.cer .. apstat.pdf 06/28/2007 Page1of2 '1 -· • • NOTICE·TO APPLICANTS: By law, this department returns all engineering and other plans to the applicant. If, however, you wish to authorize the department to return engineering and other plans directly to the engineer, architect, or other consultant for the limited purpose of making corrections, please designate below: ~ I authorize this department to return plans directly to my consultant(s) for the limited purpose of . making corrections as designated on this form. . CONSULTANTS: Check out the DOES Web site at www.kinqcountv.gov/permits CertApplicantStatusFORM.doc lc-cer-apstat.pdf 06/28/2007 Page 2 of 2 • • Martin Property King County, WA Recreation Equipment Cut Sheets, manufacture's specifications And Recreation plan bond quantity MAIN FILE COPY K.C. D.D.E.S. Prepared for: Camwest Development Triad Job Number: 04-257 February 20, 2008 Pacific Outdoor Products -PT-38 ADA Square picnic table Recycled Plastic Frame Color -Black In ground mount Heavy duty single pedestal 3-sided table to meet ADA standards -in wood or plastic Picnic Table Pacific Outdoor Products -BP25 6' length Recycled Plastic Frame Color -Black In ground mount Bench Pacific Outdoor Products -PM1403 Area (soft surface ) Capacity Age range Activities Colors Slide Roof Uprights 3 0 ' X 2 4 ' 2 0 -24 chil d ren 2-5 years old 6 Gr een Green Green Play Structure-2-S year olds ~ ' Wood play ltructlftS Id! 811 atttactMI, natlnl element toyourl)I~ M~cu struot"81 woas 11 treated v.tth non-tooo ,t;Q prnervetlYe. ACXl pressure treated wood Is EA\ 8l)llrOled and contains no CCA (OlranlunH:opper Arsenic~ ms process Is envronmentally f rlendly and does not seep Into tile 90I. Moat ~antJy. It 1)()888 no dar18B' to clildren. ACXl protects 88111nst m-y rot. decay and termite attack. and It weathera to a warm brown color. Becauae ACQ contains no arsenlO or oopper-chron'f1111. safety Is enhalad for ow craftsmen anddspoeal Is not 811 erwlronmlntal ca,o«n, FEATIJRES: • All of OIII' ...... ...,..._ . .,, routN, 41rll1N • llfldelllllfftO - ._,,.tlleqilt ..... bNomt • Our_.....,. cast co .,.t1111 •llaw• for •SJ ......... 11111 ,.,. .. , ....... • IIMllusheouetomSNle ............... for . ..,.., ...... ,. ...... ............ 1oa,t11111 stNI stnaoturN and _, tol118._II. • w.r.. .. ..,.., 411111'-and klllj INtlnc -....._ Into ... lftllNll9Mftt, • No pllJ •t•ure •• too -.11, w. oan 41eelp to flt IIIJ llull••t 01 •fl• ,.., ......... ~r«luslwcostcollarsyst.rmallowsfor lOS)' lllslllllaCJonallll modulardeslglt All ptp,;s o,eCQpptd llttho pol}ai1bo1111a mdcap(orduniitlJtyand ufeq. Allt(ourbmmso,elrl~ Warranty Information PLAY GROUND EQUIPMENT: All structural upright posts carry a 30 year warranty against structural failure due to corrosion, deterioration or faulty workmanship. All other components carry a one year warranty against defects in materials and workmanship. Warranty becomes effective on the date of delivery. Checking and cracking are a natural characteristic of wood products and should be expected. Normal checking and cracking does not affect the structural integrity of the structure and Is not covered under this warranty. SITE AMENITIES: All site amenities carry a one year warranty against structural failure due to corrosion, deterioration or faulty workmanship, effective on the date of delivery. CONDITIONS: Replacement parts will be furnished free of charge (shipping and labor excluded) subject to the following conditions: (1) The warranty applies only to the original purchaser. (2) All returns must be approved in advance. (3) Structure assembled improperly, not to factory instructions or altered without authorization, will void the warranty. Warranty does not cover damage caused by vandalism, abuse, neglect or acts of nature. Photographs or faulty pieces may be required to determine ellglbillty for replacement parts. Safety by Desi~n We take your children's saTety seriously. To provide them with a safe play environment we design all of our play equipment to meet or exceed current US Consumer Product Safety Co1TV11lsslon (CPSC) and American Society of Testing Material (ASTM) guidelines. For more safety information contact the Consumer Product Safety Commission at (800) 638 -2772 or American Society for Testing and Materials at (610) 832-9585. In addition, all of our design work is done by a nationally certified Playground Safety Inspector (NPSI) and we are ~ !!.!.r::1~ MRMBBR a member of the International Play Equipment Manufacturers Association (IPEMA). ADAAG Play Areas Is ADA accessibility one of your concerns? WIii it be In the future? There are many factors to consider when creating ADA accessible play areas and we will be happy to work with you to meet your current and future needs. Our structures have been designed with ADA access In mind and most can be modified to your particular needs. For more information contact the United States Access Board at (800) 872-2253 or visit their website at www.access-board.com. Product Specifications See your dealer for product specifications. Product specifications are subject to change without notice. • • Standard Product Specifications METAL FINISH: metal parts are stainless steel, galvanized, zinc plated, zinc, aluminum, or powdercoated to resist rust and corrosion. TIRE SWING SWIVEL: Revolving tire swings are suspended from a custom designed and manufactured ball bearing swivel in a fully enclosed housing. The tire swing housing consists of 356-alloy sand cast heat-treated aluminum. The swivel is fitted with a grease fitting to facilitate periodic lubrication. BELT SWINGS: Belt swing seats consist of flexible rubber 6" wide with slash-proof reinforced metal inserts. TODDLER SEATS: Toddler seats consist of flexible rubber with additional back support for smaller children and must include a safety chain across the front. BABY BUCKET: The baby bucket consists of a fully enclosed one-piece reinforced rubber seat. POLY PANEL: The one-piece poly panel is manufactured of rotationally molded polyethylene. The 24" diameter opening is used as a crawl through or for attaching a polycarbonate bubble or window. TWO-PIECE POLY PANEL: The two piece poly panel is manufactured of rotationally molded polyethylene. The two pieces are bolted together using zinc plated button head bolts and threaded inserts. The 24" diameter opening has a recessed groove into which either the rim of a galvanized steel barrel or the flange of a rotationally molded polyethylene tunnel fits. STEERING WHEEL: The steering wheel is custom designed and manufactured of rotationally molded polyethylene. The 15" diameter wheel spins freely on a center hub and pipe assembly. BUBBLE/WINDOW: Available as either a bubble or a flat window, manufactured of clear, impact resistant Lexan, the bubble or window attaches to the poly panel with tamper resistant screws. TIRES: Tires are cleaned, re-conditioned or re-manufactured auto tires with sturdy casings. Tires are used for tire swings, tire nets, and climbing tires. All tires are pre-drilled with appropriate holes for attaching hardware and for drainage. Under no circumstances are steel belted tires used. GYM RINGS: Gym rings are custom designed and manufactured from 356-alloy sand-cast heat- treated aluminum. Gym rings are used in pairs or in a traverse configuration. TIC-TAC-TOE PANEL: The tic-tac-toe panel consists of a rotationally molded plastic double walled frame and nine blocks with a.250" wall thickness. The blocks turn independently on galvanized steel tubing. The frame is drilled with mounting holes. PEEK-A-BOO PANEL: The peek-a-boo panels are rotationally molded polyethylene. They are custom designed to offer an excellent barrier for deck openings. Because of the specially designed openings in the panel, visual supervision is maintained. WOOD TIRE SWING BEAM: When a tire swing uses 5-hole support beams, a 12' 6"x6" (nominal) wooden beam is used. This beam is approximately 6-1/2' high. COIL CLIMBER: The coil climber center support pipe is 1-7/8" OD SS 40 galvanized steel pipe. The coils of the climber are 1/38" OD SS-20 galvanized steel pipe. Models for various deck heights are available. • • Steel Systems Product Specifications METAL FINISH: All metal parts are stainless steel, galvanized, or powdercoated to resist rust and corrosion. POWDERCOATING: Powdercoated parts are electrostatically polyester powdercoated to a thickness of 3 mils. Powdercoating provides a colorful surface that resists wear and weather. POSTS AND BEAMS: Standard posts are 4-1/2" OD 11 gauge galvanized steel or aluminum pipe with a .012" wall thickness. All overhead swing beams, arches, and arch supports are 4-1/2" OD SS 40 galvanized steel pipe with a .237" wall thickness. If specified, 4-1/2" OD SS 40 galvanized steel pipe is available for all support posts. COLLAR SETS: Collar sets are 356 T-6 heat-treated permanent mold cast aluminum alloy. Collar sets consist of two halves. The collar sets have been designed to permanently attach accessories to support posts. Attachment hardware which consists of two plated socket head cap screws, two plated flush mount t-nuts, and two 1/4" x 1" stainless steel roll pins are included with each collar set. The collar sets are powdercoated. PIPE CAP: Pipe caps are AS-CAST/356F sand-cast aluminum alloy. All exposed ends of posts and beams are capped with an aluminum post cap that is riveted in place. End caps are powdercoated. ARCHED CLIMBER: The arched climber consists of two curved 4-1/2" OD galvanized steel Schedule 10 pipe rails and eight 1-3/8" OD galvanized steel pipe rungs permanently welded in place, spaced at 12" intervals. The arched climber is powdercoated and held in place with two collar sets. STEEL DECK: The steel decks are made of 2"x3" angle iron and 3/16" expanded steel. Steel decks are plastic coated with 1/8" thick PVC coating, bonded to steel with anti-corrosion epoxy primer. The standard deck is 48 "x 48"; OVERHEAD SWING BEAMS: All overhead swing beams are 4-1/2" OD SS 40 galvanized steel pipe with a 4" OD SS 40 galvanized steel sleeve permanently welded in each end. Each end of overhead swing beams fit into a 4-1/2" OD SS 40 galvanized steel pipe connector which is permanently welded to either a swing arch or support post. Attachment is with 5/8" plated bolt and plated acorn nut. FIRE POLE: Fire poles consist of 1-7/8" OD Schedule 10 galvanized steel pipe with a 1-3/8" OD SS 40 galvanized steel connector pipe permanently welded in the end for connecting to support post with collar set. PARALLEL BARS: Parallel bars consist of two powdercoated, 1-3/8" OD, SS 40 galvanized steel pipe. The parallel bars are eight feet in length and connect to support posts with four collar sets. BANISTER SLIDE: The banister slide consists of two powdercoated 1-7/8" OD Schedule 10 galvanized steel pipe with a slope of 30 degrees. Each banister slide rail connects to the adjacent support post with one collar set. Each rail also rests on and bolts to the deck. STANDARD SLIDE: Standard slide consists of a bed made from 24" wide 16 gauge T-304 polished stainless steel. The side pipe rails are 4-1 /2" OD Schedule 10 galvanized steel pipe which is powdercoated. The top deck connector is 11 gauge polished stainless steel. The side pipe rails are extended to be footed into the ground. The slide bed is attached to the pipe side rails with stainless steel rivets and is reinforced from underneath with galvanized steel braces. • • • STEP RUNGS: Step rungs are used to facilitate climbing from ground to deck, or deck to deck. Step rungs are 1-3/8" OD galvanized steel pipe. Each step rung attaches to the support posts with two collar sets. WORM CLIMBER: The worm climber consists of 1-7/8" OD SS 40 galvanized steel pipe side rails and 1-3/8" OD SS-20 galvanized steel pipe climbing loops permanently welded into a one-piece unit. The end supports are 1-7/8" OD SS 40 galvanized steel pipe. Worm climbers are designed for 42" and 56" deck heights. TIRE NET: Tire nets consist of either four or six tire configurations. Tires are pre-drilled with assembly, attachment, and drain holes. The upper and lower two tires attach to pipe rungs using 5/8" zinc plated machinery eyebolts. The tire net assembly attaches to support posts with four collar sets.· ARCHED HAND-OVER-HAND: The arched hand-over-hand consists of 1-7/8" OD SS 40 galvanized steel pipe side arches. Hand-over-hand rungs consist of 1-3/8" OD SS-20 galvanized steel pipe. The horizontal span of the arched hand-over-hand is 102" between support posts. The entire assembly is permanently welded into one piece and attaches to four support posts with four collar sets. ,·· • • LANDSCAPE BOND QUANTITY FORM King County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, Washington 98Q5S.1219 PROJECT NAME: Martin Property: Recreation plan DOES PROJECT#: ADDRESS: SE 125th Street; King C. PREPARED BY: Mel-shlou Lin, Triad Assoc. DATE PREPARED: 2/19/2008 DRAWING DATE: 2/19/2008 Bonds are based upon required landscaping only and will be posted for performance and/or maintenance. Required landscaping includes perimeter landscaping, surface parking area landscaping, (KCC 21A.16) and any landscaping required by SEPA envlronmental review. The maintenance period Is for the life of the project, however, after posting for maintenance, the performance bond will be reduced by 30% ($1,000.00 minimum) and be held for a two year period. Upon re.inspection of the site the bond will be released if the site has been properly maintained {21A.16.180). If the project has not been maintained end there are dead trees, shrubs, ground cover, or other deficiencies noted In the required landscaping, the bond wlll be held until the deficiencies are corrected. SOD LAWN AREAS HYOROSEEOING: LAWN HYOROSEEOING: INFILTRATION PONDS AOUATIC PLANTS RAIN GARDEN PLANTING SOIL PREPARATION A. TOPSOIL: SHRUB & TREES 16 INCHES DEEP\ TOPSOIL: LAWN AREA 14 INCHES DEEP\ B. MULCH (2 IN.) C. PEAT MOSS /TWO INCHES DEEP) D. COMPOST (3" deep & tilling) Included w/olant'o E. FERTILIZER: Included w/tree and shrub planfg PLANT MATERIALS A. DECIDUOUS TREES (INTERIOR LANDSCAPING OR OTHER REao LANDSCAPING) 1.5" CALIPER (minimum height 10') 3" CALIPER (minimum height 1 O') MULTI TRUNK /totel of 1.5" cal., min. ht 6'l B. EVERGREEN TREES 8' ht (Replacement Tree) 5' ht C. SHRUBS (5 Gallon) SHRUBS (2 Gellonl SHRUBS 11 aallonl $500.00 MSF 11000 SQ. FTI 0.00 $50.00 MSF (1000 SO. FT) 5.62 $50.00 MSF (1000 SQ. FTl 0.00 $500.00 MSF (1000 SQ. FT) 0.00 $500.00 MSF (1000 SQ. FT) 0.00 $25.00 CY /CUBIC YARD\ 87.70 $25.00 CY /CUBIC YARD\ 69.40 $24.00 CY ICUBIC YARD\ 29.20 $2.30 SY /SQUARE YARD\ 0.00 $28.00 SY /SQUARE YARD\ 0.00 $8.67 CY ICUBIC YARD\ 0.00 $200.00 COST&LABOR 5.00 $325.00 COST&LABOR 0.00 $300.00 COST&LABOR 3.00 $250.00 COST&LABOR 5.00 $150.00 COST&LABOR 8.00 $45.00 COST&LABOR 0.00 $30.00 COST&LABOR 172.00 $10.00 COST&LABOR 156.00 PRICE $281.00 $2.192.50 $1,735.00 $700.80 $1,000.00 $900.00 $1,250.00 $1,200.00 $5,160.00 $1,560.00 SUB TOTAL BOND AMOUNT ~AGE 1 OF 3 BOND AMOUNT SUB TOTAL: $15,979.30 • • D. GROUND COVER 11 Gallon> $8.00 COST &LABOR 0.00 GROUND COVER '4 Inch Potal $4.00 COST&LABOR 0.00 MISCELLANEOUS TREE ST AKES: lnduded w/ tree nlantrnn $2.65 PER STAKE & LABOR 0.00 FENCING LINEAR FOOT 3.5 FT. WOOD SPLIT RAIL $12.00 INCLUDES LABOR 0.00 IRRIGATION IRRIGATION: Tracts A & C $0.50 SQUARE FOOT 10,356.00 $5,178.00 ADDITIONAL ITEMS SURFACES CONCRETE PAVING I WALK $25.00 Sn. Yd. 48.64 $1,216.00 5' GRAVEL PATH $8.00 LF INCLUDES LABOR 124.00 $992.00 PLAYGROUND EQUIPMENT: All Unit Pricea Include dellveN and lnstallatlon PLAY STRUCTURE $9,183.00 LS ILUMP SUM\ 1.00 $9,183.00 PLAY SURFACING 112 INCH DEPTH\ $2,106.00 LS /LUMP SUM\ 1.00 $2,106.00 PLAY SURFACE PERIMETER EDGING $14.00 LF /INCLUDES LABOR 115.00 $1,610.00 SUB TOTAL BOND AMOUNT BOND AMOUNT SUB TOTAL: $20,285.00 PAGE 2 OF 3 • • ;A/1: O C'·' ' ' . :,C~f\::. },;,.il~ , "~--;. '. .~ ...... ,·: . .r~i.,_-.::.~-) ~ ,, .••. ;:.:;~· ' :, ··~ ,'. ~-.·:. -;~. '·•e.. ---. :;~-<.,.~'.· -~·;.,~:-··.:,; ,':...:.·.:;,r;_ .. {=!1,::14::•i·~,:7'\r.,; !; .~·,,. ,.:, -·; ' UNIT PRICE UNIT TYPE .QUANTITY PRICE ,· SITE FURNISHINGS: All Unit Prices Include deliver and Installation WOOD BENCHES $540.00 EACH 2.00 $1,080.00 PICNIC TABLE $1,075.00 EACH 1.00 $1,075.00 THIRTY.PERCENT CONTINGENCY FEE $11,525.79 $0.00 TOTAL BOND AMOUNT TOTAL BOND PRICE: $49,945.09 Note: 1. Street trees ere calculated in Significant Tree bond quantity worksheet. 2. Cost for landscape Improvements In detention tract B Is bond separately and to be review by the engineering section. PAGE 3 OF 3 PRE-APPLICATION REVIEW FOR SUBDIVISIONS Project Name : -.,lf~p..[4w./i-,~'lil,H9-------Activity No.: lrPSl/11 ~a Date: ~_:;-- Roads Identify street classifications and designate ~r Evaluate neighborhood circulation and need Evaluate road design standards: horizontal curves _.,.,,-- grade / intersection angle and spacing~./" Cul-de-sac length, 100 lot rule........- Tracts serving 2-6 lots and< 150 fe rural. ,"//~P~ (2,C~~~f ' •· Evaluate frontage improvements and need for ROW dedication. 31-,rmr;t/{ /,,t:7; !l,;lfd/1'!)~ Review Non-Motorized Plan for equestrian and bike lan~ Evaluate sight distance requirements for all intersections and drivewa~ Evaluate suitability of off-site serving roadways: Minimum sufficient shoulders, hazardous intersections. Determine if sufficient pu~ROW se es the property. 7/J /,n., '1~/fJ; nn ~ if ((tor/.,, d Evaluate existing or proposed alf streets servi~~~5 lots V~ Drainage . . . > CR #1:Evaluate sub-basins, diversions, an~harge poid0Jtlt;) otJ/1~,4, we..s.r ,· CR #2:Inform applicant of requirement for off-site~· CR'#3:Determine flow control standard (GIS or mapping): ~ftJI"~~~ ,...-~ If mapped as landslide haz~ge area, review tightline requirements(pg 1-37,1-18) Evaluate location of R/D, biosw~~ roads. Are facilities located. within separate County tracts? Evalua't_u_ps.tream flow and bypass issues ·;y~ ..,tf,-,-;ih?ec:z,/ CR #8:Determine water quality design standard (GIS or Mapping): SR #1:Determine area specific requirem~ mapping or resource review. SR #2:Evaluate issues regarding~. SR #3:Flood protection facilit~ams or rivers. SR #4:Source controls for~.-----) SR #5: Oil control for / e intersections .,,,/ Ct/I PJl/f{, Pl{ llA" ;;j; i/ fl~ {}L~J # f.lJfJ-L ?f{l,d/J. wtf1tt,w/_ rJ" Wetlands, streams, steep slop~s, and associate'Clbuff~ocated in tracts. f"J.,J.j; ~~~~t(J){l n requirements for Erosion Hazards (KCC'2clA. 2r.120)' · ' IJ'\: IIVll'}- Evaluate wildlife corridors or habitat issues. ,...,..,., Notes: J,td) rJ71/l/f; ft r/ttfvi?t ID Wtpf I\, IV~nMtJJ J~~ftfl'' J{ b~er/no ~vd(vr~J ~ {JI, P-suffix Search Traffic Concurrency ' ·-. , .. ® King County Department of Development and Envlronm ental Services Land Use Services Division 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 206-296-6600 TTY 206-296-7217 For alternate formats, call 206-296-6600. ;rt6;beJ~6rfo:i1ef~'itib~:qo·Esista ff. Pre:apfiljc~tion,t;,16. · ;Date·,Receivedi. . )$tifmpi · ··· · JUL 1. 2 2005 .. .. A_05P/112(p0 K.C. D.D.E.S. Please orint: Applicant Name: CamWest Real Estate Development Date: 07 /11/05 Address: 9720 NE 120th Place , Suite 100 Phone:(425) 825-1955 Kirkland, WA 98034 Fax: ( 425 825-1565 Project Description: Subdivision proposal to di vide 3.71 acres into 13 lots for residential develooment. Permit(s) being requested: Subd ivision approval Project Address/Location: 12439 148th Ave SE Renton, \·/A 98059 Please indicate if pre-application is: Parcel No(s): D Land Use Feasibility &I Mandatory D Consolidated 1023059383 Check the box(es) regarding issue s you wish to discuss: !xi! Land Use Permit Issues: Subdivi sion /CUP/ Variances / Reasonable Use/ PAUE Density/ Subdivision Design I Landscaping !xi! Site Issues: Zoning /Setbacks/ !xi! Site Issues: Traffic/ Road Acces s I Road Improvement I Road Variances/ Parking Layout lopment I SWDM Variances & Adjustments !xi! Site Issues: Drainage I Site Deve D Shoreline Issues: Substantial De ~ SEPA Issues: SEPA Checklist/ velopment Permit/ Permitted Uses/ Shoreline Setbacks Off-Site Improvements/ Mitigation ~ Wetland/Stream Issues: Buffers/ Building Setbacks/ Flood Plains/ Mitigation D Geotechnical Issues: Steep Slop ~ Clearing/Grading Issues: Site De e I Landslide/ Seismic/ Coal Mine/ Erosion velopment / Clearing Restrictions / Site Restoration nical: HVAC/Energy/ Barrier-Free Standards D Building Issues: Building/ Mecha D Fire Issues: UFC / Fireflow / Ace ess I Sprinklers/ Alarms/ Hazardous Materials Water/ Groundwater/Noise Impacts D Health Issues: Sewer/ Septic/ ~ Other (Specify): See attach ed list of questions Check out the DDES Web site at www.metrokc.gov/ddes D Land Use Pre-Application Meetings Information & Request Form lc-infreq-preap.pdf 04/27/04 Page 3 of 4 Please Indicate the numbers and types of representatives that will be at the pre-application meeting from your design team: WIii Attend Im D !xi! Im WIii Nol Attend 0Applicant @Architect 0Civil Engineer 0Developer WIii Attend D D D D Total Number Attending: 4 WIii Nol WIii Attend Attend !illGeotechnical Consultant D 0Landscape Architect D @Legal Consultant D !illProperty Owner ------------ WIii Nol Attend [iQj Structural Engineer ~ Wetlands Consultant D Others: I certify that I am the applicant for this pre-application meeting request and I understand that ODES will assess hourly review fees for each DOES staff member Involved in pre-application research, meetings and post-meeting follow-up work, and that I assume financial responsibility for all fees associated with this request. Note: An advance deposit of $392.44 is required to schedule a pre-application meeting. All checks must be payable to King County Office of Finance. If you have any questions about your pre-application meeting, please contact ODES at 206-296-6600. Check out the DDES Web site at www.metrokc.gov/ddes Land Use Pre-Application Meetings Information & Request Form lc-infreq-preap.pdf 04/27/04 Page 4 of 4 ! n !li 1u· 1 (/) I I 1u1uJ1:il Q_J i J I 1~1~}1d <0< I u I j i ~ , in1111Mi i N-::E 0:: a.. w ;~1116! ~ ® li•·f''P1 I LO 1--~:~:?< < < J1l( 11 fl· 0 a:: << 0 ~h [dhlh ij ·+ !ii ~ I ,. l 0 o._ coO NI ~ 0.. 0..N LOO Oo ~N 0 ot- coO NJ: ~ a.. 0..N LOO ~·~ 0 ow (0 (!) N-... ~o a.. a:: LOO o>- ~J: I"-.. ~ .. -----------------• 1 ;· $0'; '.~_., i. . ::'l I . . , JI .. , , •• ~ ' ··-. ; ....... • ... ; . I ~~; A05PM260 2005 SWDM S-T-R '\, QSUPES ~seo.JNES '/vTWPtJNES /V Str.- W-l!oelee landllklll HataRI Dlainage "'- B Landllde HaZard Dlainage Landtllkle HaZard ----, Parcell Cll8I 0 400 Feel 1-.500,... ®King COUnty ____ ..... _ .. __ by ~°"'"'l'-"'"'•wWyd.-lfldlo...,..., -..-rdioo.l<lr'G°"'"'l'-no --... --.,~-.... ocanq,,.,.,..,....._, _ .,,.,...., .. _d. =....--:-=..c:::::.:~ .. --~~~linlod~~--.. ~ ..-~ ...... _.,_d. .. _ -.......... ...,_d. ......... -..,llio-·--IIV-~d. Clolny. Plotdl'8: Jul 30, 2005; l'dlioo001\x01~-~ Ii I ii !ji,ifll j !j -I ]! I 112J•I &b I 0 i 1111' I lb'! pf I (0 ,liljlj•f!, ' C\I I If § l;tf l :E I ,,; tell J I i·'f1 1lit i a.o (i) jf b '.-,if -LO <( 1 ~~~1111till!r N~ hihl'ttp 1 ~(.) <~..-:.~ < 1({) I uf d l U ~ ~ ::i • ~ i A05PM260 ZONING NT'* ~ Schocl!IISchocl Fadltiel S-T-R 1, IQSUNES ~SEO.JIES ~ -Watll1( Boclee Rcad~Way Parcels C]Parb Otles ~10-~.cne0Uper10acne • A-36-~. one 0Uper35acn,a -F-Rnll ........... AA-2.5 • Rural Nfl8, one OU per 5 acrw AA-5 • Rural Nfl8, o>e OU per Sacn,a -AA-10 • Rural ArN. one OU per 10 acn,a 1..R -ui,an ,...,.., one OU per 5 acrw R-1 -~.o>eDUperaae R-4 • ~. 4 OU per acre R-e • Rllllden1ial, 6 DU per ac:re R-e · RAilldenlal, 6 OU per ac:re R-12 • Reeldanlal, 12 DU per acre R-18-~.18DUperacre -R-24 • Reeldanlal, 24 OU per acre -R-46 • Relldlnllal, 46 OU per acre Lal N! • NeU',bolliOOd 8ullrw -CB . ColrmR!y &slraa -RB. Reglonal-- -0-0lllc:e 1-lrd.Jalrlal N Oty Bolnlan8s 0 !iOO 1000 1500 Feel 1 .... 1333"'81 ® King County l<q Qufy--. ....,.., _ -· atljod .. ~ ·,---..... """,_ __ .., -1 dwve--l<qCcully-no __ .,_....._.,.,...-, ... u. ----«rtglaloU.-d 1 i, I 1::....~~~:~.., --~t>.Cnol-lo,loll-«loll ..-~ ........ _.,_.,.,._ :=-..:::.=..-::::.=...~ OM1y. Plot_ Jul 30, 2005; l'ddlll001\x01...,_~ Parcel Number: 1023059383 Taxpayer: MARTIN KENNETH A Annexation: N/A Jurisdiction: Unincorporated King County Situs Address: 12439148TH AVE SE Postal City: Renton, 98059 Plat Name: ; Rec: nil Lot: N/A; Block: NIA Kroll Page: 805 E Thomas Bros. Page: 656 1/4-S-T-R: SE-10-23-5 Acres: 3.69 (160736 SqFt.) Current Zoning: R-4 Potential Zoning: Comp. Plan Land Use: um Assessor's Open Space: N/A Commercial Use: NIA Number of Units: NIA Mobile Home: N Appraised Land Value: 140000 (2004), 415000 (2005) Appraised Improvements Value: 217000 (2004), 165000 (2005) Community Plan Area: Newcastle Unincorporated Area Council: Four Creeks Unincorporated Area Council School District: Issaquah School District 411 Fire District: 0025 Roads MPS Zone: 442 ($2918.00) Roads TCM Zone: 754 Waterfront: Water Seivice: Water Service Planning Area: King County Water District 90 Sewer Service: Airport Noise Remedy Program: NIA Bald Eagle Flag: N/A Council District (1996-2001): 12 David Irons Jr. (R) Council District (2002): 12 David Irons Drainage Basin: Lower Cedar River, WRIA 8 Police: King County, Pct: 3, Dist: F2 Service/Finance Strategy Area: Service Planning Snowload Zone: Standard Agricultural Production District: N Forest Production District: N Rural Forest Focus Area: N TOR Type: NIA TOR Status: N/A TOR Permit Number: NIA Building Inspection Area: N-7 Clearing Inspection Area: Bruce Engel! Code Enforcement Inspection Area: Bill Turner ESA Inspection Area: Greg Sutton Grading Inspection Area: Bruce Engell Land Use Inspection Area: Tim Cheatum Sens. Areas Notice(s) on Title: NONE Aquatic Areas Buffer: N Basin Condition: Low Flow Control Area: Conservation Flow Water Quality: Basic Critical Aquifer Recharge Area: None Area of Potential Wetland Influence: Y soc @ King County III1m.mll Ci§fh3¥1 Comments Wiiik3,N By law this information may not be used for commercial purposes. Taxpayer MARTIN KENNETH A Tax Year 2004 Tax Status TAXABLE Parcel Number 1023059383 Account Number 102305938304 ----------···---·---------- Levy Code 6867 Taxable Value Reason NONE OR UNKNOWN Appraised Land Value I $140,000 Taxable Land Value $140,000 Appraised Improvement Value $217,000 Taxable Improvement Value $217,000 Parcel Number Taxpayer MARTIN KENNETH A ·---·· ··-·-----.. Account Number . .,._,,_ --"····--·-~·-.--·---·------.--·--------··--·-·---~-.•. ---· -----·-··------·-"-··-. ' .. " Tax Year 2005 --·-·--··-·· Levy Code .... Tax Status TAXABLE Taxable Value Reason 1023059383 102305938304 6867 NONE OR UNKNOWN Appraised Land Value I $415,000 Taxable Land Value $415,000 I Appraised Improvement Value $165,000 Taxable Improvement Value $165,000 Assessor Property Sales Records: Tip: Use the Recorders Office: Excise Tax Affi!lavit!! Report to see more sales records details Sale Date 3/7/1986 Sale Price $0 Seller Name MARTIN KENNETH A $ER Buyer Name MARTIN KENNETH A Assessor Parcel Records: District Name KING COUNTY Property Name Plat Name Plat Block Plat Lot Lot Area 160,736 Sq Ft (3.69 acres) Section/Township/Range SE 10 23 5 Property RESIDENTIAL Type Present Single Family Use (Res Use/Zone) Water WATER System DISTRICT Sewer PRIVATE System Access PUBLIC Street PAVED Surface Page I of3 soc Assessor Legal Description Records: Account Number 102305938304 I Record Number 101 Legal Description 102305 383 S 1/2 OF NE 1/4 OF SE 1/4 OF SE 1/4 LESS N 16 FT LESS E 150 FT LY S OF N 14 FT THOF LESS CO RD Assessor Residential Building Records: Address 12439 148TH AV SE 98059 Building Grade Average Building number 1 Condition Good Bedrooms 3 Year Built 1969 Baths 2 Year Renovated 0 1/2 Baths 1 Total Living SqFt 2360 3/4 Baths 0 1st Floor SqFt 2360 Stories 1 Half Floor SqFt 0 Single Story Fireplace 1 2nd Floor SqFt 0 Multi Story Fireplace 0 Upper Floor Sq Ft 0 Free Standing 0 Fireplace Total Basement SqFt 0 Basement Garage SqFt 0 Total Finished Basement 0 Attached Garage SqFt 440 SqFt Finished Basement Grade NONE OR Open Porch SqFt 0 UNKNOWN Daylight Basement Enclosed Porch SqFt 0 Heat System Elec BB Deck Sq Ft 0 Heat Source Electricity Percent Brick Stone 0 This report was generated: 7/30/2005 10:13:59 AM Related on-line reoorts: [King CountyGIS: Property information FAQ ____ _____ _ _ ____________ J [Kin.9 County_ Asse~~-~'..~_:'lub.;:;it a regu~st_to_c_<>!r~~t-~his_!nfoi:_ma!~on _ _ ____ J [00Es~P-e~.;:;11·A111111c~t1;;~;Re"f;;;rt ------· ---------------------- [Kingc:ou~tv: Districts and [)e~el<>p~e~t Conditions Report [Ki~g ¢ounty .AsseSsor: ._eR~~'-·-~r<>~~~¥ ~epCJrt(PD~_ for~at_r~g~ire~ ~~~~§at)___________________ I [King.County _Treasury Operations Pro11erty Tax lnformation::.=~==-==:==:J /Re-c:oictera--office E;c:1;; ,=~~-Affid~-~·11;·Report __________ .-----· --------·-· ·_--···-· --------· J [ Recoiciers_oifice scan~ed ·1;;;~9e-;CiiJ;,1ais:survevs._aneioitier mao-ctcicumenis _ J Enter a 10 digit Parcel Number: j _______ -------_____ _ 0 r Enter an address: s1fcs""'1Ctllnl'h,i1!11 ~;;:, J~~xgH,,J11: ...---------------- Page 2 of3 soc Page 3 of3 King County I GIS Center I News I Services I Comments I Search By visiting this and other King County web pages, you expressly agree to be bound by terms and conditions of the site. The details. soc Page I of I @) King County lll!lmllll lllm'!!BII Ki44'ii34W Comments. Hi¥ii3,M No P-Suffix Conditions Found The Parcel Number you entered "1023059383" does not have any Development Conditions. To starl over click on the New Query link below. Updated: December 29, 1998 King County I DOES Page I DDES/GIS Page I New Query I News I Services I Comments I Search Links to external sites do not constitute endorsements by King County. By visiting this and other King County web pages, you expressly agree to be bound by terms and conditions of the site. The details. King County DOES Pre-Application Meeting Questions Martin Property July 6, 2005 Planning/ Zoning: • Overview of zoning and property setback requirements • Overview of park space requirements • Any P-suffix conditions to be aware of? Traffic Concurrency & TIA • Will a traffic impact analysis be required for the property proposal? ROW I Street Requirements: • Confirm applicable road standards. • Discuss the required x-sections for the interior plat roads • Discuss proposal for site access and future area to be dedicated as ROW w/ the Shamrock property plat. Drainage Analysis: • What storm drainage standards will apply? • Additional drainage requirements to note or address? Misc Site Development: • Any restrictive clearing & grading requirements to be aware of? ml~!;/!&@ K.c. D.D.E.s. AoSPl>1 ZtoO :;·. / ,. ?-r··--············•·.·.w·-r-··· ....... :, .. , .. ,, ...... ,, ............ , .......... : ..... •.·············· ·. .. ·. .. :; ·. ·: ..... , ·, . .._ , ,. ~ i ; . ' . ' :·, : ··., ,1,, . L R -0-W or:o;tC'A 770N , , f 1\ f'. 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R! ~ A(;_ , ...... ..l....J ro,434 SF i~ i ":) '.' • .C~~o 1 1 -~-·, · , ~. I .. !I"\ '. i ·, I·'"' 'f4" l' . \/ 102' ,·. ''-'-' ' li \.) . .,, ' ,. 1 . '-[ · . ~~ i : e / \ -~,. \ ' ;, -r ·i:r: ·-i. wD\.111,iC>.I> .· ... o~ ll 11 J,,,..n.A"''D . /, ·.. (.Q . ··. /3 ··. . ', ,Mos.,.,,,, eoM°"'"' · f/ ,re ,v, 11,.,.... ·. · ' 716' • ' '.J. L . ! .. ~~Jet'vi>~"''w, .. ~·J·.;.. . / /. J 210 S,F. ' rd ~. #-, ':'-126' ·.. ' j I ~ ',-I ' """' h 1/ 1" · '• <¢1 -' ' l<j ,l \'see-P111>11Ht 3~) ol \ . :' \ \". -__ ;~ , ,.,--\' \... . "') ;/ 1~~ ,r ~I . tt,··,;:; T\: RA/£.CT c· 'jg"' 'r ') i ) 9 I i;:; I < , l ' / -ll) £ ' .. ) / ~ I I :1 · . ..._ ~ ....... . !,,__ ,, ... 1 ........... ,,,,, .... , .. ,,,.,,,, ... ,,,, .... j··~ ,1t \'/, DETENTION ·.. 126·;. ·. IV) 1 . 10 · ·,., i , ,.. o . /, I~ , ... .. , .,,... . ~,.I . I 1 r ..... .. · ·· ........ ~ ~l~ ~~-'i·_ 2.J,248 'SF . ..... '.,, rib) ·,._, ~~ ~ ·,. __ . , t ~ I 1 : , : 12:l/.. . -W!,21.. ' ., ··. 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I 1 1 1 ·'11·· , r JI ! j i I ! 1' I ! ' i r : i I\ f' i\t I' \l ~\\\ \\\ I 1 t • _ _ , i 1 r--··· · 1 j i I j : r--J : '--1__ i ; c ,r \ .u u \ i ~" \\ ~ e. c.~~------·- 1 _,..,,/ ,,,\ \;-·, I ' . i ,. ' -i'rFNTd~ .. ,, ·-11 '--I i --c. : ~~;:~-~. ---I "' ., .. ···· ... ·:i::,, \y1 ··-............. :·, ... ,,. ......... , ........ r···· ~ .......... _~ ..... ·.-· ·-........ _ ... ?'..:..:!~:.~:....:.~ .. ~-? ... ~ .. ·---.-... T" ~CT o l I ---· ' '\, ' ' . ~ $'~, --r--··-.JV:l\ ' . ··---... -·-·· ' -•-• ·''\_ , I . , M'-.. ·!l .,..ft..,.._••----··-·•••••' ! \ •.. ·-.. ~.: ... j I • ® King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, WA 98055-1219 Date: 4/25/08 TO: Pete Dye FM: Claire Jonson ~ RE: Project Name: Martin Activity No. L07SR015 Documents: For PM A1mroval Please find attached the following for PM Approval: • 3 sets of paper copy signed by me on 4/18/08 • 1 paper copy of OLD plan signed by you and me • 3 copies of TIR signed by me on 4/18/08 • Documents for file: o Hold Letter from Kim Claussen regarding L08MI014 o Email from Karen Scharer dated 2/11/08 regarding administrative revision to new location of recreation plan o Response letter from TRIAD dated 2/20/08 o Revised approved significant tree bond quantity worksheet dated 2/19/08 o L07MI065 OLD Recreation Plan approval conditions Jeff Pray did review for constructability of the revision. This has already been sent to LUIS for inspection fee estimate and the revision does not need to be resent. Please contact me if you have any questions. Thank you, Claire tQ King County Department of Development and Environmental Services Land Use Services Division 900 Oakesdale Avenue Southwest Renton, WA 98057·5212 206•296-6600 TTY 206·296-7217 www.klnqcounty.gov April 22, 2008 Gerald Buck Triad Associates . 12112 115'" Ave NE Kirkland WA 98034-6929 RE: Recreation Plan for Martin Plat DOES Activity No. L08MI014 -L05P0019 Dear Mr. Buck: On March 17, 2008, our office requested additional information in order to complete the review of the landscape and recreation plan for the plat of Martin. To date, we have not received this information. Therefore, this project is ori hold until ttiis information is received. If the additional information is not received by July 7, 2008, a new submittal will be required prior to engineering plan approval. If you have questions or need.additional information, please call me at (206) 296-7167. Sincerely, ~A:!i~· -Wrn~:~ssen, PPM 111 Current Planning Section Cc: Jennifer Reiner, CamWest Development Inc Pete Dye, P.E., Senior Engineer, Engineering Review Section, LUSD File A07BN354 . -A07BN40i. 807F0417 L07M1065 L07Sl147 L07s114a BOND BOND FIREPERM L-MISC INSPECT .......................• INSPECT Tuesday, Jul 21, 2009 11 :45 AM User: carlsonj Computer: DE242927 Os: Windows NT Version: 5.1 i r Tuesday, Jul 21, 2009 11 :43 AM User: carlsonj Computer: DE242927 Os: Windows NT Version: 5.1 I /: i Tuesday, Jul 21, 2009 11 :45 AM User: carlsonj Computer: DE242927 Os: Windows NT Version: 5.1 ';\'! '' ,, ' ,·I• j f., ··.·1 • = ~··:~:f(sfl~N~~:~13S·lJ~·:\~!)ve,~~:v.,}:;;:, ' .. :i Review El STATIOl1 ............ l •. ITEM Tuesday, Jul 21, 2009 11 :58 AM User: carlsonj Computer: DE242927 Os: Windows NT Version: 5.1 ~-------------------------------------------- 7121/2009 1::1.ela TITLE Finance & PlanApp,.El ........... J Pro(eCt"·Ma'na9e"iPfo·a-: p_/·iGR ApprOve:d;P_(an· set. FINISHED Dye' Pete 1D/01·1200·1-1oio3/20o7;: 1QA)312ooi fo/D3/2007 .I Land'0s8 lnsri~ Si?ctj LUIS~-Fee Esllnlate ... " FINISHED Pray jeff 09/26/2007 09/26/2007 10/12i2007 10/17/2007 4; •'', 1,}r;"1,' ....,,,~--.----. ,.~,~- F_i,D ::9~~rant_8e· (1,_ ,-. ,.,,1 •• ~~-~~; 89~,cis/fe_~-,:, !i::li 1 ;·{(: ~~~~~ ~~f~t .... ~~ ~~11J_rCif:~'bi1l2~0:; ~~(1,2{f009 o?,(:212:pgg STATION ERS Office Tech ERS Fees Development Engineer DENG Mylars .,,L,,,ane,de,IJa,_ ,.,,.,1,.n.,s o,.e,,,c,,tia,,n=P=I=''=" 'w~c::LU IP App roved Pian Set Tuesday, Jul 21, 2009 11 :58 AM User: carlsonj Computer: DE242927 Os: Windows NT Version: 5.1 TITLE !MARTIN PLAT Tuesday, Jul 21, 2009 11 :58 AM User: carlsonj Computer: DE242927 Os: Windows NT Version: 5.1 7121 /2009 tt.!J, jMARTIN PlA T TITLE •111 111111111_ .. _ 1L1APPR0VEDj120 js1TEREv js1TEREVP (PlANCOMP j Review El STATION c:::i Land Use Engineering Tuesday, Jul 21, 2009 11 :59 AM User: carlsonj Computer: DE242927 Os: Windows NT Version: 5.1 Plans:Exam·Struc)ural 'ii: ,. "' -"'' ,· .. , .·, :; <''/''.'' lql ,if Landsca·pe/Rec 'Plan· ~;·:·: .. == Tree Retention Plan Rfil:. Land Use Sur\l~y ReVie"W . slJRV Si1e' Pia~~/ , J,~llt-t'lil JL,1"6,a-11 ·1i:.,,~·"'":1"'"' "~ is1, •1k,,,.,1~,_ '..,~, ~L;/!:.._::. ;(. Tuesday, Jul 21, 2009 11 :59 AM User: carlsonj Computer: DE242927 Os: Windows NT Version: 5.1 e rx l1JJ 7121 /2009 lTh)Q TITLE Lan~yse Inspection Plans LUIP Appro'!!,~lan Set SETUP Tuesday, Jul 21, 2009 11 :59 AM User: car1sonj Computer: DE242927 Os: Windows NT Version: 5.1 L05P0019 Peter Dye DDES/LUSD MS OAK-DE-0100 • • OFFICE OF THE HEARING EXAMINER REPORT AND DECISION KING COUNTY, WASIDNGTON 400 Yesler Way, Room 404 Seattle, Washington 98104 Telephone (206) 296-4660 Facsimile (206) 296-1654 Email: hearex@metrokc.gov April 3, 2007 SUBJECT: Department of Development and Environmental Services File No. LOSP0019 Proposed Ordinance no. 2007-0082 · 1 . '-,.c-fJ.1. I..,, MARTIN Preliminary Plat Application Location: 120 feet west of 148th Avenue Southeast, 100 feet south of Southeast !25th Street and 100 feet north of Northeast 5th Street, Renton Applicant: Cam West Real Estate Dev., Inc. represented by Robert Johns, Attorney Johns Monroe Mitsunaga !601-114thAve. SE,# 110 Bellevue, Washington 98004 Telephone: (425) 467-9960 Facsimile: (425) 451-2818 King County: Department of Development and Environmental Services (DDES) represented by Karen Scharer 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 Telephone: (206) 296-7114 · Facsimile: (206) 296-7051 SUMMARY OF RECOMMENDATIONS/DECISION: Department's Preliminary Recommendation: Department's Final Recommendation: Examiner's Decision: EXAMINER PROCEEDINGS: Hearing Opened: Hearing Closed: Approve, subject to conditions Approve, subject to conditions (modified) Approve, subject to conditions (modified) March 22, 2007 March 22, 2007 • • L05POO 19 -Martin Page 2 of 13 Participants at the public hearing and the exhibits offered and entered are listed in the attached minutes. A verbatim recording of the hearing is available in the office of the King County Hearing Examiner. ISSUES AND TOPICS ADDRESSED: • Access • Surface water drainage • Property ownership and encroachments SUMMARY: The proposed subdivision of 3.71 acres into 31 lots in the urban area is approved subject to conditions. FINDINGS, CONCLUSIONS & DECISION: Having reviewed the record in this matter, the Examiner now makes and enters the following: FINDINGS: I. General Information: Developer: Engineer: STR: Location: Parcel: Zoning: Acreage: Number of Lots: Density: Lot Size: Proposed Use: Sewage Disposal: Water Supply: Fire District: School District: Camwest Real Estate Development, Inc. 9720 NE 1201 • Place, Suite I 00 Kirkland, WA 98034 Contact: Sara Slatten 425-825-1955 Triad Associates 12112 115th Ave NE Kirkland, WA 98034 Contact: Gerry Buck 425-821-8448 10-23-05 120 feet west of 148th Ave SE, 100 feet south of SE 125• St., and I 00 feet north of NE 5th St. (Renton) 102305 9383 R-4 3.71 acres 13 Approximately 3.5 units per acre 6, 700-7,600 square feet in size Single Family Detached Dwellings City of Renton Water District# 90 City of Renton Issaquah School District Complete Application Date: October 26, 2005 • • L05P0019-Martin Page3 of13 2. Except as modified herein, the facts set forth in the King County Land Use Services Division's preliminary report to the King County Hearing Examiner for the March 22, 2007, public hearing are found to be correct and are incorporated herein by this reference. The LUSD staff recommends approval of the application, subject to conditions. 3. This proposed subdivision is south and east of the plat of Shamrock. Access to this subdivision will be from 148th Avenue Southeast, through the north portion of Shamrock, and from Northeast 4th Street, through the south portion of Shamrock. This plat will participate in funding a traffic signal and associated improvements being constructed at the intersection of SR 900 and 148th Avenue Southeast, to mitigate its adverse impacts to that intersection and the intersection of 164th Avenue Southeast and SR 900. This subdivision will also construct road frontage and off-site improvements along Southeast 125th Street, west from the project entrance, to connect with 144th Place Southeast, to provide access to the south. These improvements are planned to be constructed partly on right-of-way dedicated to King County by the recorded plat of Shamrock. The adjacent property owner claims an interest in a portion of the Southeast 125th Street right-of-way dedicated by Shamrock. However, King County does not recognize that interest as impairing the right-of-way dedication. In the event it is determined through legal proceedings that the property to the west is not available as dedicat_ed right-of-way, the access to the Martin plat from the north would be sufficient to serve this development without an alternative access to the west and south. 4. The Martin property slopes down from east to west. No surface water runoff from the planned development of the Martin property will flow onto the adjacent properties to the east. 5. There will be no access to any of the lots within the proposed subdivision directly from 148th Avenue Southeast. The strip of land approximately 120 feet by 15 feet, that is shown as a panhandle of proposed lot 5, will be segregated from lot 5 and established as a separate tract. 6. All students residing within the subject property will be bussed to the elementary, junior high and high schools that serve the area. The bus stop that is proposed to serve students within this plat will be located at Southeast 124th Street and 148th Avenue Southeast. With the construction of urban improvements within this subdivision, safe walking conditions will exist from all lots within this plat to the bus stop. Improvements necessary to be made on 148th Avenue Southeast to provide for a safe bus loading zone will be constructed by other developments that are required to make improvements to 148th A venue Southeast. The subject property has no frontage on 148th Avenue Southeast, other than the 15 foot wide "panhandle" tract that is used for a driveway to an adjacent property owner's garage. CONCLUSIONS: I. If approved subject to the conditions recommended below, the proposed subdivision will comply with the goals and objectives·ofthe King County Comprehensive Plan, subdivision and zoning codes, and other official land use controls and policies of King County. 2. If approved subject to the conditions recommended below, this proposed subdivision will make appropriate provision for the public health, safety and general welfare, and for open spaces, • • L05P0019-Martin Page4 of 13 drainage ways, streets, other public ways, transit stops, potable water supply, sanitary waste, parks and recreation, playgrounds, schools and school grounds and safe walking conditions for students who only walk to school; and it will serve the public use and interest. 3. The conditions for final plat approval recommended below are in the public interest and are reasonable and proportionate requirements necessary to mitigate the impacts of the development upon the environment. 4. The dedications ofland or easements within and adjacent to the revised preliminary plat, as required for final plat approval or as shown on the proposed preliminary plat submitted by the Applicant on April 21, 2006, are reasonable and necessary as a direct result of the development of this proposed plat, and are proportionate to the impacts of the development. 5. The applicant has agreed to provide off site improvements on the alignment of Southeast 125th Street, between the plat entrance road and 144th Place Southeast, in order to provide improved access to future residents of the subdivision, as well as the residents of the adjacent plat of Shamrock to the north and west of the subject property. In the event dedicated right-of-way is not available to complete those improvements, access to the north only will be sufficient to adequately serve the proposed subdivision. 6. The proposed plat of Martin will have no adverse impact upon surface water drainage that affects, or will affect, the adjacent properties lying between the Martin plat and 148th Avenue Southeast. DECISION: The proposed preliminary plat of Martin, as revised and received on April 21, 2006, is approved, subject to the following conditions of final plat approval: I. 2. 3. 4. Compliance with all platting provisions of Title 19A of the King County Code. All persons having an ownership interest in the subject property shall sign on the face of the final plat a dedication that includes the language set forth in King County Council Motion No. 5952. The plat shall comply with the base density and minimum density requirements of the R-4 zone classification. All lots shall meet the minimum dimensional requirements of the R-4 zone classification or shall be shown on the face of the approved preliminary plat, whichever is larger, except that minor revisions to the plat which do not result in substantial changes may be approved at the discretion of the Department of Development and Environment Services. All plat boundary discrepancies shall be resolved to the satisfaction of DD ES prior to the submittal of the final plat documents. As used in this condition, "discrepancy" is a boundary hiatus, an overlapping boundary or a physical appurtenance which indicates an encroachment, lines of possession or a conflict of title. The applicant must obtain final approval from the King County Health Department. • L05P0019-Martin Page 5 of 13 5. All construction and upgrading of public and private roads shall be done in accordance with the King County Road Standards established and adopted by Ordinance No. 11187, as amended (1993 KCRS). 6. The applicant must obtain the approval of the King County Fire Protection Engineer for the adequacy of the fire hydrant, water main, and fire flow standards of Chapter 17 .08 of the King County Code. All future residences constructed within this subdivision are required to be sprinklered (NFP A 130) unless the requirement is removed by the King County Fire Marshal or his/her designee. The Fire Code requires all porhons of the exterior walls of structures to be within 150 feet (as a person would walk via an approved route around the building) from a minimum 20-foot wide, unobstructed driving surface. To qualify for removal of the sprinkler requirement, driving surfaces between curbs must be a minimum of 28 feet in width when parking is allowed on one side of the roadway, and a minimum of 36 feet in width when parking is permitted on both sides. The road width requirement applies to both on-site access and roads accessing the subdivision. Storm Drainage 7. Final plat approval shall require full compliance with the drainage provisions set forth in King County Code 9.04. Compliance may result in reducing the number and/or location of lots as shown on the preliminary approved plat. Preliminary review has identified the following conditions of approval, which represent portions of the drainage requirements. All other applicable requirements in KCC 9.04 and the Surface Water Design Manual (SWDM) must also be satisfied during engineering and final review. a. Drainage plans and analysis shall comply with the 2005 King County Surface Water Design Manual. ODES approval of the drainage and roadway plans is required prior to any construction. b. Standard plan notes and a construction sequence as specified in the King County drainage manual shall be shown on the engineering plans (Reference Section 7B). c. A storm water pollution prevention and spill (SWPPS) plan shall be included with the project engineering plans as required in Chapter 2 of the drainage manual. d. Storm water facilities shall be designed using the KCRTS conservation flow control standard. Water quality facilities shall also be provided using the basic water quality protection menu. If the proposed onsite storm water pond is used as a wet pond for water quality treatment, the facility shall be revised as necessary to comply with requirements for a 3: I flow path for water quality treatment as outlined in the drainage manual. e. To implement the required Best Management Practices (BMP's) for treatment of storm water, the final engineering plans and technical information report (TIR) shall clearly demonstrate compliance with all applicable design standards. The requirements for best management practices are outlined in Chapter 5 of the drainage manual. The design engineer shall address the applicable requirements on the final engineering plans and L05P0019-Martin • • Page6ofl3 provide all necessary documents for implementation. The final recorded plat shall include all required covenants, easements, notes, and other details to implement the required BMP's for site development. f. All runoff control facilities shall be located in a separate tract and dedicated to King County unless portions of the drainage tract are used for recreation space in accordance with KCC 21A.14.180. g. During preliminary review, the applicant received approval for a drainage adjustment (L06V0043) regarding the building setbacks for constructing an offsite drainage pipe within the adjacent plat of Shamrock. The final engineering plans shall show the design requirements for constructing the offsite pipe and demonstrate compliance with all conditions of approval as listed in the drainage adjustment decision. To assure adequate capacity is provided for conveyance of storm water from the onsite detention pond, the overflow system and conveyance pipe shall be designed at a minimum for the I OOyear storm based upon developed site conditions. h. As depicted by field topography on the site plans, an upstream drainage basin is located east of the subject property. The final engineering plans shall be designed to address any requirements for bypass of upstream drainage as described on page 1-42 in the drainage manual. Due to groundwater conditions on the site, the design engineer shall also evaluate the need for interceptor trenches and easements for conveyance of drainage. As shown in applicants drainage report site map, an existing french drain is located in the eastern portion of the site which should be removed or relocated. Based upon the final designs, drainage easements may be required to convey surface or ground water through the proj eel. 1. As shown on the applicant's preliminary site plans, the existing storm system located near the west property line shall be removed during site construction. The existing pipes and catch basins shall be shown on the final engineering plans with applicable notes and/or design requirements for removal. Access/Roads 8. The proposed subdivision shall comply with the 1993 King County Road Standards (KCRS) including the following requirements: / a. Road A shall be improved as an urban minor access street. /b. The frontage road (SE 1251h St) along Tract A shall be improved full width as an~ sub~~cess street and shall extend westerly from the project entrance at 1461h Ave SE to 144 Place within the Shamrock plat. Sixteen feet of additional right-of-way shall be dedicated for completion of the road improvements. A temporary cul-de-sac located on lots 38 and 39 within the Shamrock plat shall be removed upon completing the road connection. Design standards for removing a temporary cul-de-sac are provided in KCRS 2.080. In the event off site right-of-way is not available to construct improvements to connect with 144th Place Southeast, Southeast 125th Street shall be improved in the manner stated above to the west boundary of the Martin plat. A L05P0019 · Martin C. (!) e. f. • Page 7 of 13 temporary cul-de-sac or other provision for emergency vehicle tum around may be required by the King County Fire Marshal. As shown on the preliminary plat map, an existing easement for ingress and egress is located along the north boundary of the plat and extends easterly to 148"' Ave SE. Any rights of direct vehicular access to 148th Avenue Southeast granted to the Martin property by this easement shall be extinguished prior to or concurrent with final plat recording. Street trees shall be included in the design of all road improvements, and shall comply with Section 5.03 of the KCRS. Modifications to the road standards shown above may be considered by King County pursuant to the variance procedures in KCRS 1.08. (Deleted) 9. There shall be no direct vehicular access between this plat and 148"' Ave SE, except for the existing driveway that serves the abutting property from the 15 foot wide "panhandle" tract. A note to this effect shall appear on the engineering plans and the final plat. I 0. Off-site access to the subdivision shall be over a full-width, dedicated and improved road which has been accepted by King County for maintenance. If the proposed access road has not been accepted by King County at the time of recording, then said road shall be fully bonded by the applicant of this subdivision. 11. (Deleted) Mitigation/Impact Fees 12. The applicant or subsequent owner shall comply with King County Code 14.75, Mitigation Payment System (MPS), by paying the required MPS fee and administration fee as determined by the applicable fee ordinance. The applicant has the option to either: (I) pay the MPS fee at the final plat recording, or (2) pay the MPS fee at the time of building permit issuance. If the first option is chosen, the fee paid shall be the fee in effect at the time of plat application and a note shall be placed on the face of the plat that reads, "All fees required by King County Code 14.75, Mitigation Payment System (MPS), have been paid." If the second option is chosen, the fee paid shall be the amount in effect as of the date of building permit application. 13. Lots within this subdivision are subject to King County Code 21A.43, which imposes impact fees to fund school system improvements needed to serve new development. As a condition of final approval, fifty percent (50%) of the impact fees due for the plat shall be assessed and collected immediately prior to the recording, using the fee schedules in effect when the plat receives final approval. The balance of the assessed fee shall be allocated evenly to the dwelling units in the plat and shall be collected prior to building permit issuance. • • L05P0019 -Martin Page 8 of 13 Recreational Area Other The plat shall provide suitable recreation space consistent with the requirements ofK.C.C. 21A.14.180 and K.C.C. 21A. 14.190 (i.e., children's play equipment, sport court[s], picnic table[s], benches, etc.). a. A detailed recreation space plan (i.e., location, area calculations, dimensions, landscape specs, equipment specs, etc.) shall be submitted for review and approval by DOES prior to or concurrent with the submittal of engineering plats. b. A performance bond for recreation space improvements shall be posted prior to recording of the plat. A homeowners' association or other workable organization shall be established to the satisfaction of ODES which provides for the ownership and continued maintenance of the recreation, open space and/or sensitive area tract(s). To implement K.C.C. 16.82 which applies to the site, a detailed tree retention plan shall be submitted with the engineering plans for the subject plat. The tree retention plan (and engineering plans) shall be consistent with the requirements ofK.C.C. 16.82, as well as the conceptual tree retention plan ( dated April 21, 2006). No clearing of the subject property is permitted until the final tree retention plan is approved by LUSD. Flagging and temporary fencing of trees to be retained shall be provided, consistent with K.C.C. 16.82 The placement of impervious surfaces, fill material, excavation work, or the storage of construction materials is prohibited within the fenced areas around preserved trees, except for grading work permitted pursuant to K.C.C. 16.82. {9 Street trees shall be provided as follows (per KCRS 5.03 and K.C.C. 21A.16.050): a. Trees shall be planted at a rate of one tree for every 40 feet of frontage along all roads. Spacing may be modified to accommodate sight distance requirements for driveways and intersections. b. Trees shall be located within the street right-of-way and planted in accordance with Drawing No. 5-009 of the 1993 King County Road Standards, unless King County Department of Transportation determines that trees should not be located in the street right-of-way. c. If King County determines that the required street trees should not be located within the right-of-way, they shall be located no more than 20 feet from the street right-of-way line. d. The trees shall be owned and maintained by the abutting lot owners or the homeowners association or other workable organization unless the county has adopted a maintenance program. Ownership and maintenance shall be noted on the face of the final recorded plat. ~--------------------------- • • L05POO 19 -Martin Page 9 of 13 / e./ The species of trees shall be approved by DOES if located within the right-of-way, and shall not include poplar, cottonwood, soft maples, gum, any fruit-bearing trees, or any other tree or shrub whose roots are likely to obstruct sanitary or storm sewers, or that is ·not compatible with overhead utility lines. ,, / SEPA ' fl g. h. The applicant shall submit a street tree plan and bond quantity sheet for review and approval by ODES prior to engineering plan approval. The street trees must be installed and inspected, or a performance bond posted prior to recording of the plat. If a performance bond is posted, the street trees must be installed and inspected within one year of recording of the plat. At the time of inspection, if the trees are found to be installed per the approved plan, a maintenance bond must be submitted or the performance bond replaced with a maintenance bond, and held for one year. After one year, the maintenance bond may be released after DOES has completed a second inspection and determined that the trees have been kept healthy and thriving. A landscape inspection fee shall also be submitted prior to plat recording. The inspection fee is subject to change based on the current county fees. The following have been established by SEP A as necessary requirements to mitigate the adverse environmental impacts of this development. The applicants shall demonstrate compliance with these items prio~ to final approval. 1.) To mitigate the significant adverse impact the plat of Martin will have on the intersections of SR 900/148"' Ave SE and SR 900/164"' Ave SE, the applicant shall install, either individually or in conjunction with other development projects in this area, the following improvements at the SR 900/148"' Ave intersection: • A traffic signal, and • Eastbound and westbound left tum lanes The design for the SR 900/148"' Ave intersection improvements shall be approved by the Washington State Department of Transportation (and by King County to the extent such improvements are located in County right-of-way). In addition, at a minimum, the existing entering sight distance looking east for the north and south legs of the intersection ( 602 feet and 386 feet, respectively) shall not be reduced as part of the intersection improvements. Documentation shall be submitted to show this requirement is met. All construction work associated with the intersection improvements shall be completed between April I" and September 30"'. This seasonal restriction shall be clearly shown on the final engineering plans. In lieu of the installation of the above-noted intersection improvements prior to final plat approval, the applicant may post a financial guarantee with WSDOT which assures the installation of these improvements within two years of the recording of Martin. In this event, intersection improvement design must be approved by WSDOT prior to King County approval of the engineering plans for Martin. If the above-noted intersection improvements have already been made by others prior to the recording of Martin, or a financial guarantee has been posted by others which assures the • • LOSPOO 19 -Martin Page 10 of 13 installation of these improvements, then the applicant for Martin shall pay a pro-rata share dollar amount to the developer who has made the improvements or "bonded" for the improvements, in an amount proportional to the impacts of Martin. The pro-rata share dollar amount to be paid shall be set by WSDOT, and documentation shall be provided by the Martin applicant to the King County Land Use Services Division to show this payment has been made, prior to final plat recording. The pro-rata dollar amount to be.paid shall be based on the following: • The final Martin lot count • The trip distribution for Martin • The total trips contributed to the intersection of SR 900. I 48th Ave by the plats of Aster Park (LOOP0024), Stone Ridge (L99P3008), East Renton (L02P0005), Shamrock (L02POOl4), Rosemonte (aka lronwood-L03POOl8), Martin (L05POOl9) and any future land use applications submitted to King County for which compliance with the King County Intersection Standards (KCC 14.80) is required at either the SR 900/14811i Ave intersection, or the SR 900/164th Ave High Accident Location. In the event that either King County or WSDOT adopts a formal "latecomer's" system prior to final plat recording, that system may be followed in lieu of the approach described above, at the discretion of the applicant, as long as at a minimum there is a financial guarantee which assures the above-noted intersection improvements will be installed within two years of the date of recording of the plat of Martin. [Comprehensive Plan Policy T-303 and King County Code 21 A.28.060A] 2.) Documentation shall be provided to demonstrate to the satisfaction of WSDOT that stopping sight distance (360 feet) is available on the east leg of the SR 900/148th Ave intersection. The intersection shall be modified by the applicant, if necessary, so that this stopping sight distance requirement is met on the east leg. In addition, the applicant shall clear vegetation within the right-of-way along SR 900, east of 148th Ave., to maximize the entering sight distance for the north and south legs of the intersection. [Comprehensive Plan Policy T-303 and King County Comprehensive Policy T-303 and King County Code 21A.28.060A] ORDERED this 3rd day of April, 2007. TRANSMITTED this 3rd day of April, 2007, to the parties and interested persons of record: Safit Basic 12601 -148th Ave. SE Renton WA 98059 Robert D. Johns Johns Monroe Mitsunaga 1601 -I 14th Ave. SE,# 110 Bellevue WA 98004 Joel Delange 12438 -148th Ave. SE Renton WA 98059 Andy T. Phung 9333 -57th Ave. W Mukilteo WA 98275 Keith & Cathy Gilbert 12609 -148th Ave. SE Renton WA 98059 Christi Schumann 12502 -145th Pl. SE Renton WA 98059 L05P0019. Martin Seattle KC Health Dept. E. Dist. Environ. Health 14350 SE Eastgate Way Bellevue WA 98007 Kim Claussen DDES/LUSD MS OAK-DE-0100 Ray Floren! DDES/LUSD MS OAK-DE-0100 Kristen Langley DDES/LUSD MS OAK-DE-0100 Larry West DDES/LUSD MS OAK-DE-0100 • Sara Slatten Cam West Development 9720 NE 120th Pl #100 Kirkland WA 98034 Lisa Dinsmore DDES/LUSD MS OAK-DE-0100 Nick Gillen DDES/LUSD MS OAK-DE-0100 Karen Scharer DDES/LUSD MS OAK-DE-0100 Kelly Whiting KC DOT, Rd. Srvcs. Div. MS KSC-TR-0231 NOTICE OF RIGHT TO APPEAL Pagel I of 13 Triad Associates 12112 -I 15th Ave. NE Kirkland WA 98034 Peter Dye DDES/LUSD MS OAK-DE-0100 Shirley Goll DDES/LUSD MS OAK-DE-0100 Steve Townsend DDES/LUSD MS OAK-DE-0100 In order to appeal the decision of the Examiner, written notice of appeal must be filed with the Clerk of the King County Council with a fee of $250.00 (check payable to King County Office of Finance) on or before April 17, 2007. Ifa notice of appeal is filed, the original and six (6) copies ofa written appeal statement specifying the basis for the appeal and argument in support of the appeal must be filed with the Clerk of the King County Council on or before April 24, 2007. Appeal statements may refer only to facts contained in the hearing record; new facts may not be presented on appeal. Filing requires actual delivery to the Office of the Clerk of the Council, Room 1025, King County Courthouse, 516 3"' Avenue, Seattle, Washington 98104, prior to the close ofbusiness (4:30 p.m.) on the date due. Prior mailing is not sufficient if actual receipt by the Clerk does not occur within the applicable time period. The Examiner does not have authority to extend the time period unless the Office of the Clerk is not open on the specified closing date, in which event delivery prior to the close of business on the next business day is sufficient to meet the filing requirement. If a written notice of appeal and filing fee are not filed within fourteen ( 14) calendar days of the date of this report, or if a written appeal statement and argument are not filed within twenty-one (21) calendar days of the date of this report, the decision of the hearing examiner contained herein shall be the final decision of King County without the need for further action by the Council. • • LOSPOO 19 -Martin Page 12 of13 MINUTES OF THE MARCH 22, 2007, PUBLIC HEARING ON DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES FILE NO. L05P0019. James N. O'Connor was the Hearing Examiner in this matter. Participating in the hearing were Karen Scharer, Pete Dye, Kristen Langley and Ray Floren! representing the Department; Robert Johns representing the Applicant, and Andy Phung and Safet Basic. The following Exhibits were offered and entered into the record: Exhibit No. 1 " l Exhibit-No. 2 Exhibit No. 3 Exhibit No. 4 Exhibit No. 5 Exhibit No. 6 Exhibit No. 7 Exhibit No. 8 Exhibit No. 9 Exhibit No. 10 Exhibit No. 11 Exhibit No. 12 Exhibit No. 13 Exhibit No. 14 ExhibitNo. 15 Exhibit No. 16 Exhibit No. 17 Exhibit No. 18 ExhibitNo. 19 DDES file no. L05P0019 DDES March 22, 2007, preliminary report for file no. L05P0019, with attachments as follow: 2.1. Plat Map w/13 Lot Plat Design 2.2. City of Renton Sewer Availability 2.3. Surface Water Management Variance/L06V0043 2.4. Density Calculations w/R-4 zoning 2.5. ROW/Easement Exhibit, 2 pages Application for land use permit/plat no. L05POO 19 received 9/28/2005 SEPA Checklist received 9/28/2005 SEPA Mitigated Determination of Nonsignificance issued 1/26/2007 Affidavit of posting for Notice of Application indicating posting date of 11/4/2005; received by DDES on 11/8/2005 Revised Site plan (13 lot preliminary plat map) received 4/21/2006 Assessor's maps (2)-SE 10-23-05 & SW 11-23-05 Level I Downstream Analysis by Triad Associates, date received 9/28/2005 Traffic Impact Analysis by Transportation Engineering North West, received 4/21/2006 Request for School Information Form from Issaquah School District, received 11/12/2005 Email from Sara Slatten to Noreen Anderson dated 4/6/2005, with 14 pages of attachments Vicinity Map for L05P0019, L03P0018 & L02P0005, prepared by KC staff on 3/19/2007 . DOES Field Report and GIS Information dated 11/3/2005 Letter (with 17 attachments) from A Phung, received 4/18/2006 Email to & from A Phung, re: ownership of 16' wide strip, dated 11/23/2005 Email (with 7 attachments) from Safe! Basic re: road improvements & flooding dated 2/6/2006 Letter from Sara Slatten re: response to request for information & Phung/ownership, dated 6/22/2006 Email from Sara Slatten dated 7/12/2006 regarding Summary of An Phung discussions, forwarded by Kim Claussen on 7/13/2006 with 3 attachments i ' . . , L05POOl 9 -Martin Exhibit No. 20 Exhibit No. 21 Exhibit No. 22 Exhibit No. 23 Exhibit No. 24 Exhibit No. 25 Exhibit No. 26 JNOC:gao L05P0019 RPT • • Page 13of13 Letter (with enclosures-3 pages) from Eric Campbell of Cam West to A Phung re: resolution of property ownership, etc, dated 9/14/2005 1121/2005 email from Safe! Basic regarding property lines & noise with undated response from Lanny Henoch 11/28/2005 email from K & C Gilbert with 11/29/2005 response re: sewer extension to their property Email from Ray Floren! re: ownership documentation, dated 6/22/2006 Email from Ray Floren! re: ownership documentation, dated 6/28/2006 Letter from A Phung, re: property ownership, dated 3/19/2007 Testimony of Raymond Floren! dated 3/22/2007 r' ,•c-c ' -• -,,.",>''., "--,----·----. -----___ ,,_ ~ -· _'·.,·,.· -._. - >a -- .. j.; '} i'i\ -_ ; ; --.• ··· : -- -· :t>,'· ,-, -. ---··--.. --·_- - lltl''~id i/M•- ·. -Martin P:toperty ' King County Technical Information Report ' Prepared for CamWest Development Triad Job No. 04-257 .. --- -··'i . ,: .. ' f: ,' • • Martin Property-Technical Information Report Martin Property TECHNICAL INFORMATION REPORT Prepared By: Reviewed By: February 19, 2008 Job #04-257 King County, Washington Prepared For: Camwest Development 9720 NE 120th Place, Suite 100 Kirkland, WA 98034 Issued February 14, 2007 Revised June 28, 2007 Revised August 10, 2007 Revised August 28, 2007 Revised September 20, 2007 Revised February 19, 2008 AnnaDumo, Tyson Wentz Richard A. Tomkins, PE Page 1-1 • • • • • • 1 2 3 4 Martin Property-Technical Information Report TABLE OF CONTENTS PROJECT OVERVIEW ........................................................................................................................ 1-4 CONDITIONS AND REQUIREMENTS SUMMARY ....................................................................... 2-1 OFFSITE ANALYSIS ....................•....................................................................................................... 3-l FLOW CONTROL AND WATER QUALITY DESIGN .................................................................... 4-l 4.1 PERFORMANCE STANDARDS AND DRAINAGE CONCEPT .......................................... 4-1 4.2 KCRTS METHODOLOGY ........................................................................................ 4-1 4.3 EXISTING CONDITIONS ............................................................................................ 4-3 4.4 DEVELOPED CONDITIONS ........................................................................................ 4-4 4.5 DETENTION POND DESIGN ...................................................................................... 4-7 4.6 WATERQUALITY .................................................................................................. 4-13 5 CONVEYANCE SYSTEM ANALYSIS & DESIGN ........................................................................... 5-l 5.1 ONSITE CONVEYANCE ............................................................................................ 5-1 5.2 RATIONAL METHOD FLOWRATES {Q) ..................................................................... 5-2 5.3 PEAK RAINFALL INTENSITY (1100) ........................................................................... 5-2 5.4 RUNOFF COEFFICIENTS {C) ..................................................................................... 5-2 5.5 FREEBOARDTABLE ................................................................................................. 5-3 6 SPECIAL REPORTS AND STUDIES .................................................................................................. 6-1 6.1 GEOTECHNICAL REPORT ......................................................................................... 6-1 7 OTHER PERMITS ................................................................................................................................. 7-1 8 TESC ANALYSIS, DESIGN AND CONSTRUCTION STORMWATER POLUTION PREVENT! 0 N PLAN ...................................................................................................................................... 8-1 8.1 TESC ANALYSIS AND DESIGN ................................................................................ 8-1 8.2 CSWPPP DESIGN ................................................................................................. 8-3 9 BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATION OF COVENANT ...... 9-1 9.1 BOND QUANTITIES .................................................................................................. 9-1 9.2 FACILITY SUMMARIES ............................................................................................. 9-1 9.3 DECLARATION OF COVENANT ................................................................................. 9-1 10 OPERATIONS AND MAINTENANCE ............................................................................................. 10-I September 20, 2007 Job#04-257 Page 1-2 • • Martin Property-Technical Information Report LIST OF SUPPLEMENTAL INFORMATION SECTION 1 TIR WORKSHEET SECTION2 KING COUNTY BASIN RECONNAISSANCE MAP KING COUNTY SENSITIVE AREAS MAPS SECTION 3 ATTACHED LEVEL I DOWNSTREAM ANALYSIS REPORT SECTION4 EXISTING CONDITIONS EXHIBIT DEVELOPED CONDITIONS EXHIBIT KCRTS PRINTED DOCUMENTATION POND DETAILS FIGURE 3.2.2.A KCSWM RAINFALL REGIONS TABLE 3.2.2.B 2005 KCSWM SCS SOIL TYPES KING COUNTY SCS MAP KINGCOUNTYSCSLEGEND FIGURE 6.4.1.A PRECIPITATION FOR MEAN ANNUAL STORM SECTION 5 FIGURE 3.2.1.D I 00-YEAR 24-HOUR ISPLUVIALS CATCH BASIN TRIBUTARY AREAS EXHIBIT KCBW PRINTED DOCUMENTATION SECTION6 GEOTECHINCAL ENGINEERING REPORT SECTION 8 BMP IMPLEMENTATION FORM MATERIAL INVENTORY FORM POTENTIAL POLLUTION SOURCE IDENTIFICATION FORM LIST OF SIGNIFICANT SPILLS AN LEAKS FORM EMPLOYEE TRAINING FORM POLLUTION PREVENTION TEAM FORM SECTI0N9 FACILITY SUMMARY SHEET • DECLARATION OF COVENANT AND GRANT OF EASEMENT (TO BE COMPLETED AT RECORDING) September 20, 2007 Job#04-257 Page 1-3 • • • Martin Property-Technical Information Report 1 PROJECT OVERVIEW The project proposes to construct 13 single-family lots on approximately 3.83 acres in King County, Washington. The site is north of the City of Renton boundary and between 144th Place SE and 148th Avenue SE. Martin property is within Section 10, Township 23 North, Range 5 East, W.M., King County, Washington. The Vicinity Map below shows the general location of the site. j : " I : TO 1-4 0~ f__-!--900 ~i! i I \ i--- ~l .\.',, Y Y,'i.,-!.' Y '.,"()i)!il'' '',lii:k." Vicinity Map Not to Scale ' ' ' One single-family home along with an associated driveway, two barns and internal fencing currently exist onsite. Approximately 0.03 acres in the central western edge of the site appears to have some wetland characteristics such as reeds, buttercups, and sedges. King County has determined that this area is not a wetland. The highest elevation (480 feet) is at the tip of the flagpole extension adjacent to l 48'h Ave NE. The lowest elevation is at the southwest comer ( 443 feet). The entire site is pastured with some trees and blackberry overgrowth. Deciduous trees are planted in line with three shallow channels. Three Evergreen trees (30-40 feet tall) are near the existing onsite structures. Much of this site is September 20, 2007 Job #04-257 Page 1-4 • Martin Property-Technical Information Report enclosed by fencing. The 15' wide gravel drive running from 148th Ave toward the western property edge is fenced off from the rest of the site except at the garage entrance driveway. The east, west and south property boundaries are entirely fenced. In addition, onsite fence enclosures exist within the site. One 20 x 20 fence enclosure contains blackberry brambles on the west side of the residence's driveway. A second fence enclosure appears to be used as a corral for livestock and is located in the southeast comer of the site. This corral is offse.t from the eastern and southern fence line by nearly IO and 20 feet, respectively. According to the King County Soil Survey the site is underlain with Alderwood Series Soils belonging to the S.C.S. type "C" hydrologic group. The site has been modeled assuming Till soils. Most of the existing site terrain is mildly sloped (2-5%) from northeast to southwest. Steeper slopes (8-10%) are on the 15' wide flagpole extension. Surface water from the site sheets flows and enters 3 different onsite ditches that extend to the western boundary of the site. In general, there is one drainage basin the drains to the southwest towards the Shamrock Development. See Section 3 Downstream Analysis for a more detailed description of existing onsite and offsite drainage features. When developed, runoff from the site improvements will be conveyed to the detention pond located in the southwest comer of site. Please see the existing and developed conditions exhibits at the end of Section 4. The proposed drainage system consists of rolled curb and gutter with catch basins for the interception of runoff. Roof and footing drains are to be connected to the same conveyance system, which in tum discharges into the detention and water quality facility. The detention facility was sized using the guidelines set forth by the 2005 King County Surface Water Design Manual (KCSWDM). According to the 2005 KCSWDM, a Level 2 detention standard requires the project to maintain the developed peak release rates at their pre- developed peak runoff rates for the 2-year and I 0-year storm events. In addition to matching peak runoff rates, developed discharge durations must match predeveloped durations for 50% of the 2 year peak discharge rate up to the 50 year peak discharge rate. Water quality enhancement will be provided through the use of dead storage with design criteria used from the 2005 KCSWDM . September 20, 2007 Job #04-257 Page 1-5 King County Department of Development and Environmental Services • TECHNICAL INFORMATION REPORT (TIR) WORKSHEET X Subdivison D DFWHPA 0 Shoreline Management D Short Subdivision D COE404 X Rockery D Grading D DOE Dam Safety D Structural Vaults D Commercial D FEMA Floodplain D Other D Other D COE Wetlands • r_-e"'"·i"'"·~""t~"'~~,,.~i~"'~:"'~"''.t"']~"'.I:0"'f~"'f~""::~"'~~,,.~~·"'~"'1~.,./"'::,.,i"'~:~"'".:p"'J"'p"':~"':;:"'·j~"""re"'~"':~"')"}"'ij"'~.,.,:~"")~N"':'.'.·,,:~~"']!~'"':;t"';;.\·-/"'·;:;:""f"",1·.....,·'"'··;--,-,-----------. • Community: Newcastle Drainage Basin: Cedar Creek Drainage Basin D D D D D D River Stream Critical Stream Reach Depressions/Swales Lake Steep Slopes Soil Type AqC ~~~-AgB ___ _ Slopes 6-15% 0-6% D D D D D D Floodplain Wetlands Seeps/Springs High Groundwater Table Groundwater Recharge Other Erosion Potential Erosive Velcoties I • • • D D D D D D D Additional Sheets Attached REFERENCE D Additional Sheets Attached MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION X Sedimentation Facilities X Stabilized Construction Entrance X Perimeter Runoff Control X Clearing and Graing Restrictions X Cover Practices X Construction Sequence X Other I LIMITATION/SITE CONSTRAINT I MINIMUM ESC REQUIREMENTS AFTER CONSTRUCTION X Stabilize Exposed Surface X Remove and Restore Temporary ESC Facilities X Clean and Remove All Silt and Debris X Ensure Operation of Permanent Facilities X Flag Limits of SAO and open space preservation areas D Other 1------------------------------- • • D Grass Lined D Tank D Infiltration Channel D Vault D Depression X Pipe System D D Energy Dissipater Flow Dispersal D Open Channel D D Wetland Waiver D Dry Pond D D Stream Regional X Wet Pond Detention Brief Description of System Operation: Level 2 KCRTS detention with basic water quality we/pond. BM P's -Rain Garden & Dispersion Trenches Facility Related Site Limitations Reference Facility D Cast in Place Vault D Retaining Wall Limitation X Drainage Easement D Access Easement Method of Analysis KCRTS Level 2 Compensation/Mitigation of Eliminated Site Storage D Rockery > 4' High D Structural on Steep Slope D Native Growth Protection Easement X Tract D Other D Other I or a civil engineer under my supervision my supervision have visited the site. Actual site conditions as observed were incorporated into this worksheet and the attachments. To the best of my knowledge the information provided here is accurate. tUJJ-U.~ Sianed/Date • • Martin Property -Technical Information Report 2 CONDITIONS AND REQUIREMENTS SUMMARY The proposed preliminary plat of Martin, as revised and received on April 21, 2006, is approved, subject to the following conditions of final plat approval: I. Compliance with all platting provisions of Title 19 A of the King County Code. Condition Noted. 2. All persons having an ownership interest in the subject property shall sign on the face of the final plat a dedication that includes the language set forth in King County Council Motion No. 5952. 3. 4. 5. 6. Condition Noted. The plat shall comply with the base density and minimum density requirements of the R-4 zone classification. All lots shall meet the minimum dimensional requirements of the R-4 zone classification or shall be shown on the face of the approved preliminary plat, whichever is larger, except that minor revisions to the plat which do not result in substantial changes may be approved at the discretion of the Department of Development and Environment Services. Condition Noted. All plat boundary discrepancies shall be resolved to the satisfaction of DDES prior to the submittal of the final plat documents. As used in this condition, "discrepancy" is a boundary hiatus, an overlapping boundary or a physical appurtenance which indicates an encroachment, lines of possession or a conflict of title. The applicant must obtain final approval from the King County Health Department. Condition Noted. All construction and upgrading of public and private roads shall be done in accordance with the King County Road Standards established and adopted by Ordinance No. 11187, as amended (1993 KCRS). Condition Noted. The applicant must obtain the approval of the King County Fire Protection Engineer for the adequacy of the fire hydrant, water main, and fire flow standards of Chapter 17.08 of the King County Code. All future residences constructed within this subdivision are required to be sprinklered (NFPA !3D) unless the requirement is removed by the King County Fire Marshal or his/her designee. The Fire Code requires all portions of the exterior walls of structures to be within 150 feet ( as a person would walk via an approved route around the building) from a minimum 20-foot wide, unobstructed driving surface. To . qualify for removal of the sprinkler requirement, driving surfaces between curbs must be a minimum of 28 feet in width when parking is allowed on one side of the . roadway, and a minimum of 36 feet in width when parking is permitted on both sides. The road width requirement applies to both on-site access and roads accessing the subdivision. February 19, 2008 Job #04-257 Page 2-1 • • • Martin Property -Technical Information Report Parking has been provided on one side of the street (28 foot width of pavement) . Storm Drainage 7. Final plat approval shall require full compliance with the drainage provisions set forth in King County Code 9.04. Compliance may result in reducing the number and/or location of lots as shown on the preliminary approved plat. Preliminary review has identified the following conditions of approval, which represent portions of the drainage requirements. All other applicable requirements in KCC 9.04 and the Surface Water Design Manual (SWDM) must also be satisfied during engineering and final review. a. Drainage plans and analysis shall comply with the 2005 King County Surface Water Design Manual. DDES approval of the drainage and roadway plans is required prior to any construction. The drainage plans and analysis have been provided in compliance to the 2005 KCSWDM. b. Standard plan notes and a construction sequence as specified in the King County drainage manual shall be shown on the engineering plans (Reference Section 7B). c. The current standard notes and construction sequence are found on sheets 2 and 5 of the Road and Storm plans . A storm water pollution prevention and spill (SWPPS) plan shall be included with the project engineering plans as required in Chapter 2 of the drainage manual. CSWPPP notes located on sheet 6 of the Road and Storm Plans. In addition, an NPDES permit will be applied for with the Washington Department of Ecology. d. Storm water facilities shall be designed using the KCRTS conservation flow control standard. Water quality facilities shall also be provided using the basic water quality protection menu. If the proposed onsite storm water pond is used as a wet pond for water quality treatment, the facility shall be revised as necessary to comply with requirements for a 3: 1 flow path for water quality treatment as outlined in the drainage manual. e. A pond will be utilized with dead storage, see section 4 in the TIR for details. To implement the required Best Management Practices (BMP's) for treatment of storm water, the final engineering plans and technical information report (TIR) shall clearly demonstrate compliance with all applicable design standards. The requirements for best management practices are outlined in Chapter 5 of the drainage manual. The design engineer shall address the applicable requirements on the final engineering plans and provide all necessary documents for implementation. The final recorded plat shall February 19, 2008 Job #04-257 Page 2-2 • • • f. g. h. i. Martin Property -Technical Information Report include all required covenants, easements, notes, and other details to implement the required BMP' s for site development. A Rain Garden and Dispersal Trenches have been selected for BMP's. Notes will be provided on the final plat. All runoff control facilities shall be located in a separate tract and dedicated to King County unless portions of the drainage tract are used for recreation space in accordance with KCC 21 A.14.180. The stormwater facility has been designed to a Level 2 flow control and water quality per the 2005 KCSWDM. A detention tract is located in the SW corner of the site. During preliminary review, the applicant received approval for a drainage adjustment (L06V0043) regarding the building setbacks for constructing an offsite drainage pipe within the adjacent plat of Shamrock. The final engineering plans shall show the design requirements for constructing the offsite pipe and demonstrate compliance with all conditions of approval as listed in the drainage adjustment decision. To assure adequate capacity is provided for conveyance of storm water from the onsite detention pond, the overflow system and conveyance pipe shall be designed at a minimum for the I OOyear storm based upon developed site conditions. The noted pipe was installed under the drainage adjustment for the neighboring property (Shamrock Heights). The existing easement and pipe has been shown on the Road and Storm plans . As depicted by field topography on the site plans, an upstream drainage basin is located east of the subject property. The final engineering plans shall be designed to address any requirements for bypass of upstream drainage as described on page 1-42 in the drainage manual. Due to groundwater conditions on the site, the design engineer shall also evaluate the need for interceptor trenches and easements for conveyance of drainage. As shown in applicants drainage report site map, an existing French drain is located in the eastern portion of the site which should be removed or relocated. Based upon the final designs, drainage easements may be required to convey surface or ground water through the project. The existing French drain located near the east property line will be removed and replaced during infrastructure construction; collected drainage will be conveyed to the detention / water quality pond. This drainage has been accounted for in the storm water detention and water quality treatment calculations. Please refer to the Geotechnical Report for details on groundwater. As shown on the applicant's preliminary site plans, the existing storm system located near the west property line shall be removed during site construction. The existing pipes and catch basins shall be shown on the final engineering plans with applicable notes and/or design requirements for removal . Applicable notes located on sheet 6. February 19, 2008 Job#04-257 Page 2-3 • • _Martin Property -Technical Information Report Access/Roads 8. The proposed subdivision shall comply with the 1993 King County Road Standards (KCRS) including the following requirements: a. Road A shall be improved as an urban minor access street. Road A has been designed as an urban minor access street. b. The frontage road (SE I-25th St) along Tract A shall be improved full width as an urban subaccess street and shall extend westerly from the project entrance at 146th Ave SE to 144th Place within the Shamrock plat. Sixteen feet of additional right-of-way shall be dedicated for completion of the road improvements. A temporary cul-de-sac located on lots 38 and 39 within the Shamrock plat shall be removed upon completing the road connection. Design standards for removing a temporary cul-de-sac are provided in KCRS 2.08D. In the event off site right-of-way is not available to construct improvements to connect with 144th Place Southeast, Southeast !25th Street shall be improved in the manner stated above to the west boundary of the Martin plat. A temporary cul-de-sac or other provision for emergency vehicle turn around may be required by the King County Fire Marshal. C . Frontage improvements and road connection are shown on sheet 6 of the Road and Storm plans. As shown on the preliminary plat map, an existing easement for ingress and . egress is located along the north boundary of the plat and extends easterly to J 4gth Ave SE. Any rights of direct vehicular access to 148th Avenue . Southeast granted to the Martin property by this easement shall be extinguished prior to or concurrent with final plat recording. Condition Noted. d. Street trees shall be included in the design of all road improvements, and shall comply with Section 5.03 of the KCRS. Please see the Landscape plans for street trees. e. Modifications to the road standards shown above may be considered by King County pursuant to the variance procedures in KCRS 1.08. Condition Noted. f. (Deleted) 9. There shall be no direct vehicular access between this plat and 148th Ave SE, except for the existing driveway that serves the abutting property from the 15 foot wide "panhandle" tract. A note to this effect shall appear on the engineering plans and the final plat. The above referenced note can be located on the Road and Storm plans . February 19, 2008 Job #04-257 Page 2-4 • • 10 . Martin Property -Technical Information Report Off-site access to the subdivision shall be over a full-width, dedicated and improved road which has been accepted by King County for maintenance. If the proposed access road has not been accepted by King County at the time of recording, then said road shall be fully bonded by the applicant of this subdivision. Condition Noted. 11. (Deleted) Mitigation/Impact Fees 12. The applicant or subsequent owner shall comply with King County Code 14.75, Mitigation Payment System (MPS), by paying the required MPS fee and administration fee as determined by the applicable fee ordinance. The applicant has the option to either: (I) pay the MPS fee at the final plat recording, or (2) pay the MPS fee at the time of building permit issuance. If the first option is chosen, the fee paid shall be the fee in effect at the time of plat application and a note shall be placed on the face of the plat that reads, "All fees required by King County Code 14.75, Mitigation Payment System (MPS), have been paid." If the second option is chosen, the fee paid shall be the amount in effect as of the date of building permit application. Condition Noted. 13. Lots within this subdivision are subject to King County Code 21A.43, which imposes impact fees to fund school system improvements needed to serve new development. As a condition of final approval, fifty percent (50%) of the impact fees due for the plat shall be assessed and collected immediately prior to the recording, using the fee schedules in effect when the plat receives final approval. The balance of the assessed fee shall be allocated evenly to the dwelling units in the plat and shall be collected prior to building permit issuance. Condition Noted. Recreational Area 14. The plat shall provide suitable recreation space consistent with the requirements of K.C.C. 21A.14. l 80 and K.C.C. 21A. 14.190 (i.e., children's play equipment, sport court[s], picnic table[s], benches, etc.). a. A detailed recreation space plan (i.e., location, area calculations, dimensions, landscape specs, equipment specs, etc.) shall be submitted for review and approval by DDES prior to or concurrent with the submittal of engineering plats. Please refer to the Landscape plans for the detail recreation space plan. b. A performance bond for recreation space improvements shall be posted prior to recording of the plat. Condition Noted . February 19, 2008 Job #04-257 Page 2-5 • • Martin Property-Technical Information Report Other 15. A homeowners' association or other workable organization shall be established to the satisfaction of DOES which provides for the ownership and continued maintenance of the recreation, open space and/or sensitive area tract(s). Condition Noted. 16. To implement K.C.C. 16.82 which applies to the site, a detailed tree retention plan shall be submitted with the engineering plans for the subject plat. The tree retention plan (and engineering plans) shall be consistent with the requirements of K.C.C. 16.82, as well as the conceptual tree retention plan ( dated April 21, 2006). No clearing of the subject property is permitted until the final tree retention plan is approved by LUSD. Flagging and temporary fencing of trees to be retained shall be provided, consistent with K.C.C. 16.82 The placement of impervious surfaces, fill material, excavation work, or the storage of construction materials is prohibited within the fenced areas around preserved trees, except for grading work permitted pursuant to K.C.C. 16.82. Please refer to the Landscape plans for the tree retention plan. 17. Street trees shall be provided as follows (per KCRS 5.03 and K.C.C. 21A.16.050): a. b. Trees shall be planted at a rate of one tree for every 40 feet of frontage along all roads. Spacing may be modified to accommodate sight distance requirements for driveways and intersections . Trees shall be located within the street right-of-way and planted in accordance with Drawing No. 5-009 of the 1993 King County Road Standards, unless King County Department of Transportation determines that trees should not be located in the street right-of-way. c. If King County determines that the required street trees should not be located within the right-of-way, they shall be located no more than 20 feet from the street right-of-way line. d. The trees shall be owned and maintained by the abutting lot owners or the homeowners association or other workable organization unless the county has adopted a maintenance program. Ownership and maintenance shall be noted on the face of the final recorded plat. e. . The species of trees shall be approved by DOES if located within the right-of- f. way, and shall not include poplar, cottonwood, soft maples, gum, any fruit- bearing trees, or any other tree or shrub whose roots are likely to obstruct sanitary or storm sewers, or that is not compatible with overhead utility lines. The applicant shall submit a street tree plan and bond quantity sheet for review and approval by ODES prior to engineering plan approval. February 19, 2008 Job #04-257 Page 2-6 • SEPA Martin Property -Technical Information Report g. The street trees must be installed and inspected, or a performance bond posted prior to recording of the plat. If a performance bond is posted, the street trees must be installed and inspected within one year of recording of the plat. At the time of inspection, if the trees are found to be installed per the approved plan, a maintenance bond must be submitted or the performance bond replaced with a maintenance bond, and held for one year. After one year, the maintenance bond may be released after DDES has completed a second inspection and determined that the trees have been kept healthy and thriving. h. A landscape inspection fee shall also be submitted prior to plat recording. The inspection fee is subject to change based on the current county fees. Conditions Noted. 18. The following have been established by SEPA as necessary requirements to mitigate the adverse environmental impacts of this development. The applicants shall demonstrate compliance with these items prior to final approval. I.) To mitigate the significant adverse impact the plat of Martin will have on the intersections of SR 900/148th Ave SE and SR 9001164th Ave SE, the applicant shall install, either individually or in conjunction with other develo~ment projects in this area, the following improvements at the SR 900/148 1 Ave intersection: • A traffic signal, and • Eastbound and westbound left tum Janes The design for the SR 900/148th Ave intersection improvements shall be approved by the Washington State Department of Transportation (and by King County to the extent such improvements are located in County right-of-way). In addition, at a minimum, the existing entering sight distance looking east for the north and south legs of the intersection (602 feet and 386 feet, respectively) shall not be reduced as part of the intersection improvements. Documentation shall be submitted to show this requirement is met. All construction work associated with the intersection improvements shall be completed between April I't and September 30th_ This seasonal restriction shall be clearly shown on the final engineering plans. In lieu of the installation of the above-noted intersection improvements prior to final plat approval, the applicant may post a financial guarantee with WSDOT which assures the installation of these improvements within two years of the recording of Martin. In this event, intersection improvement design must be approved by WSDOT prior to King County approval of the engineering plans for Martin. If the above-noted intersection improvements have already been made by others prior to the recording of Martin, or a financial guarantee has been posted by others which assures the installation of these improvements, then the applicant for Martin shall pay a pro-rata share dollar amount to the developer who has made the improvements or February 19, 2008 Job #04-257 Page 2-7 ~-----------------------------v • • • Martin Property-Technical Information Report "bonded" for the improvements, in an amount proportional to the impacts of Martin . The pro-rata share dollar amount to be paid shall be set by WSDOT, and documentation shall be provided by the Martin applicant to the King County Land Use Services Division to show this payment has been made, prior to final plat recording. The pro-rata dollar amount to be paid shall be based on the following: • The final Martin lot count • The trip distribution for Martin • The total trips contributed to the intersection of SR 900.148 1h Ave by the plats of Aster Park (LOOP0024), Stone Ridge (L99P3008), East Renton (L02P0005), Shamrock (L02POOl4), Rosemonte (aka Ironwood- L03P0018), Martin (L05POOl 9) and any future land use applications submitted to King County for which compliance with the King County Intersection Standards (KCC 14.80) is required at either the SR 900/148th Ave intersection, or the SR 900/164th Ave High Accident Location. In the event that either King County or WSDOT adopts a formal "latecomer's" system prior to final plat recording, that system may be followed in lieu of the approach described above, at the discretion of the applicant, as long as at a minimum there is a financial guarantee which assures the above-noted intersection improvements will be installed within two years of the date of recording of the plat of Martin. [Comprehensive Plan Policy T-303 and King County Code 21A.28.060AJ Condition Noted . 2.) Documentation shall be provided to demonstrate to the satisfaction of WSDOT that stopping sight distance (360 feet) is available on the east leg of the SR 900/l 48th Ave intersection. The intersection shall be modified by the -applicant, if necessary, so that this stopping sight distance requirement is met on the east leg. In addition, the applicant shall clear vegetation within the right-of-way along SR 900, east of 148th Ave., to maximize the entering sight distance for the north and south legs of the intersection. [Comprehensive Plan Policy T-303 and King County Comprehensive Policy T-303 and King County Code 21A.28.060A] Condition Noted . February 19, 2008 Job #04-257 Page 2-8 Martin Property-Technical Information Report • Core Requirement #1: Discharge at the Natural Location • • Site runoff currently sheet flows across the site from the north-east to the south-west, through mostly grass conditions. Runoff flows off the south boundary of the site and enters a backyard French drain system alongside the Shamrock site's eastern border. This runoff is incorporated into Shamrock's tightlined storm drainage system. Runoff from the site is proposed to be collected, detained and discharged into Shamrock's storm drainage system in 144 th Place SE. Please refer to the Level I Downstream Analysis in Section 3 for a complete description of the discharge points of the site. Core Requirement #2: Offsite Analysis Please see Section 3 -Level I Downstream Analysis. Core Requirement #3: Flow Control Drainage from the site flows to the Cedar River Drainage Basin, and is required to be discharged at a Level 2 flow control. A single wetpond facility is proposed to collect and detain storm water from the developed site. The facility will be sized to provide Level 2 flow control per the 2005 KCSWDM. Core Requirement #4: Conveyance System Please see Section 5 -Conveyance System Analysis and Design. Core Requirement #5: Erosion and Sediment Control Please see Section 8 -TESC Analysis and Design. Core Requirement #6: Operations and Maintenance The designed drainage systems and facilities will be publicly maintained. Core Requirement #7: Bonds and Liability Bond Quantity Work Sheets and Liability insurance will be provided at the end of the review process . February 19, 2008 Job #04-257 Page 2-9 • • Martin Property-Technical Information Report Special Requirement #1: Other Adopted Area-Specific Requirements Critical Drainage Areas Maps from the King Country Sensitive Areas Folio show that the site is not in a sensitive drainage area with regard to aquifer protection zones, seismic hazards, coal mine hazards, erosion hazards, landslide hazards, or the 100-year floodplains. Maps are included in the Level I Downstream Analysis located in Section 3. Master Drainage Plan Not applicable. Basin Plans According to the King County Basin Reconnaissance Program, the site is located within the Cedar River Drainage Basin. Lake Management Plans Not applicable . Shared Facility Drainage Plans Not applicable. Special Requirement #2: Flood Hazard Delineation . Not applicable. Special Requirement #3: Flood Protection Facilities Not applicable. Special Requirement #4: Source Controls Not applicable. This project is not a commercial, industrial, multifamily or a redevelopment of a commercial, industrial or multifamily project. Special Requirement #5: Oil Control • Not applicable. This project is not a commercial or industrial site. February 19, 2008 Job #04-257 Page2-10 April 3, 2007 OFFICE OF TIIE HEARING EXAMINER REPORT AND DECISION KING COUNTY, WASHINGTON 400 Yesler Way, Room 404 Seattle, Washington 98104 Telephone (206) 296-4660 Facsimile (206) 296-1654 Email: hearex@metrokc.gov SUBJECT: Department of Development and Environmental Services File No. LOSPOOl 9 Prnposed Ordinance no. 2007-0082 Location: Applicant: MARTIN Preliminaiy Plat Application 120 feet west of 148th Avenue Southeast, I 00 feet south of Southeast 125th Street and 100 feet north of Northeast 5th Street, Renton Cam West Real Estate Dev., Inc. represented by Robert Johns, Attorney Johns Monroe Mitsunaga 1601 • I 14th Ave. SE,# 110 Bellevue, Washington 98004 Telephone: ( 425) 467-9960 Facsimile: ( 425) 451-2818 King County: Department of Development and Environmental Services (DOES) represented by Karen Scharer 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 Telephone: (206) 296-7114 Facsimile: (206) 296-705 I SUMMARY OF RECOMMENDATIONS/DECISION: Department's Preliminaiy Recommendation: Department's Final Recommendation: · Examiner's Decision: EXAMINER PROCEEDINGS: Approve, subject to conditions Approve, subject to conditions (modified) Approve, subject to conditions (modified) Hearing Opened: March 22, 2007 Hearing Closed: March 22, 2007 Participants at the public hearing and the exhibits offered and entered are listed in the attached minutes. • • L05POO 19 • Martin Page 2 of 13 A verbatim recording of the hearing is available in the office of the King County Hearing Examiner. ISSUES AND TOPICS ADDRESSED: Access • Surface water drainage • Property ownership and encroachments SUMMARY: The proposed subdivision of 3.71 acres into 31 lots in the urban area is approved subject to conditions. FINDINGS, CONCLUSIONS & DECISION: Having reviewed the record in this matter, the Examiner now makes and enters the following: FINDINGS: I. General Informadon: Developer: Engineer: STR: Location: Parcel: Zoning: Acreage: Number of Lots: Density: Lot Size: Proposed Use: Sewage Disposal: Water Supply: Fire District: School District: Camwest Real Estate Development, Inc. 9720 NE 120"' Place, Suite I 00 Kirkland, WA 98034 Contact: Sara Slatten 425-825-1955 Triad Associates 12112 115"' Ave NE Kirkland, WA 98034 Contact: Gerry Buck 425-821-8448 10-23-05 120 feet west of 148"' Ave SE, I 00 feet south of SE 125h St., and I 00 feet north of NE 5"' St. (Renton) 102305 9383 R-4 3.71 acres 13 Approximately 3.5 units per acre 6,700-7,600 square feet in size Single Family Detached Dwellings City of Renton Water District # 90 City of Renton Issaquah School District Complete Application Date: October 26, 2005 (- L05POO 19 -Martin Page3ofl3 2. Except as modified herein, the facts set forth in the King County Land Use Services Division's preliminary report to the King County Hearing Examiner for the March 22, 2007, public hearing are found to be correct and are incorporated herein by this reference. The LUSD staff recommends approval of the application, subject to conditions. 3. This proposed subdivision is south and east of the plat of Shamrock. Access to this subdivision will be from 148th Avenue Southeast, through the north portion of Shamrock, an.d from Northeast 4th Street, through the south portion of Shamrock. This plat will participate in funding a traffic signal and associated improvements being constructed at the intersection of SR 900 and 148th Avenue Southeast, to mitigate its adverse impacts to that intersection and the intersection of 4. 5. 164th Avenue Southeast and SR 900. This subdivision will also construct road frontage and off-site improvements along Southeast 125th Street, west from the project entrance, to connect with 144th Place Southeast, to provide access to the south. These improvements are planned to be constructed partly on right-of-way dedicated to King County by the recorded plat of Shamrock. The adjacent property owner claims an interest in a portion of the Southeast I 25th Street right-of-way dedicated by Shamrock. However, King County does not recognize that interest as impairing the right-of-way dedication. In the event it is determined through legal proceedings that the property to the west is not available as dedicated right-of-way, the access to the Martin plat from the north would be sufficient to serve this development without an alternative access to the west and south. The Martin property slopes down from east to west. No surface water runoff from the planned development of the Martin property will flow onto the adjacent properties to the east. There will be no access to any of the lots within the proposed subdivision directly from 148th Avenue Southeast. The strip of land approximately 120 feet by 15 feet, that is shown as a panhandle of proposed lot 5, will be segregated from lot 5 and established as a separate tract. 6. All students residing within the subject property will be bussed to the elementary, junior high and high schools that serve the area. The bus stop that is proposed to serve students within this plat will be located at Southeast 124th Street and 148th Avenue Southeast. With the construction of urban improvements within this subdivision, safe walking conditions will exist from all lots within this plat to the bus stop. Improvements necessary to be made on 148th Avenue Southeast to provide for a safe bus loading zone will be constructed by other developments that are required to make improvements to 148th Avenue Southeast. The subject property has no frontage on 148th Avenue Southeast, other than the 15 foot wide "panhandle" tract that is used for a driveway to an adjacent property owner's garage. CONCLUSIONS: I. If approved subject to the conditions recommended below, the proposed subdivision will comply with the goals and objectives of the King County Comprehensive Plan, subdivision and zoning codes, and other official land use controls and policies of King County. 2. If approved subject to the conditions recommended below, this proposed subdivision will make appropriate provision for the public health, safety and general welfare, and for open spaces, drainage ways, streets, other public ways, transit stops, potable water supply, sanitary waste, LOSP0019 • Martin Page 4 of 13 parks and recreation, playgrounds, schools and school grounds and safe walking conditions for students who only walk to school; and it will serve the public use and interest. 3. The conditions for final plat approval recommended below are in the public interest and are reasonable and proportionate requirements necessary to mitigate the impacts of the development upon the environment. 4. The dedications of land or easements within and adjacent to the revised preliminary plat, as required for final plat approval or as shown on the proposed preliminary plat submitted by the Applicant on April 21, 2006, are reasonable and necessary as a direct result of the development of this proposed plat, and are proportionate to the impacts of the development. 5. The applicant has agreed to provide off site improvements on the alignment of Southeast 125th Street, between the plat entrance road and 144th Place Southeast, in order to provide improved access to future residents of the subdivision, as well as the residents of the adjacent plat of Shamrock to the north and west of the subject property. In the event dedicated right-of-way is not available to complete those improvements, access to the north only will be sufficient to adequately serve the proposed subdivision. 6. The proposed plat of Martin will have no adverse impact upon surface water drainage that affects, or will affect, the adjacent properties lying between the Martin plat and 148th A venue Southeast. DECISION: The proposed preliminary plat of Martin, as revised and received on April 21, 2006, is approved, subject to the following conditions of final plat approval: I. Compliance with all platting provisions of Title 19A of the King County Code. 2. All persons having an ownership interest in the subject property shall sign on the face of the final plat a dedication that includes the language set forth in King County Council Motion No. 5952. 3. The plat shall comply with the base density and minimum density requirements of the R-4 zone classification. All lots shall meet the minimum dimensional requirements of the R-4 zone classification or shall be shown on the face of the approved preliminary plat, whichever is larger, except that minor revisions to the plat which do not result in substantial changes may be approved at the discretion of the Department of Development and Environment Services. 4. 5. All plat boundary discrepancies shall be resolved to the satisfaction of DDES prior to the submittal of the final plat documents. As used in this condition, "discrepancy" is a boundary hiatus, an overlapping boundary or a physical appurtenance which indicates an encroachment, lines of possession or a conflict of title. The applicant must obtain final approval from the King County Health Department. All construction and upgrading of public and private roads shall be done in accordance with the King County Road Standards established and adopted by Ordinance No. 11187, as amended (1993 KCRS). • i. LOlPOOl9 -Martin Pagel of 13 6. The applicant must obtain the approval of the King County Fire Protection Engineer for the adequacy of the fire hydrant, water main, and fire flow standards of Chapter 17.08 of the King County Code. All future residences constructed within this subdivision are required to be sprinklered (NFPA l3D) unless the requirement is removed by the King County Fire Marshal or his/her designee. The Fire Code requires all portions of the exterior walls of structures to be within 150 feet (as a person would walk via an approved route around the building) from a minimum 20-foot wide, unobstructed driving surface. To qualify for removal of the sprinkler requirement, driving surfaces between curbs must be a minimum of28 feet in width when parking is allowed on one side of the roadway, and a minimum of36 feet in width when parking is pennitted on both sides. The road width requirement applies to both on-site access and roads accessing the subdivision. Storm Drainage 7. Final plat approval shall require full compliance with the drainage provisions set forth in King County Code 9 .04. Compliance may result in reducing the number and/or location of lots as shown on the preliminary approved plat. Preliminary review has identified the following conditions of approval, which represent portions of the drainage requirements. All other applicable requirements in KCC 9.04 and the Surface Water Design Manual (SWDM) must also be satisfied during engineering and final review. a. Drainage plans and analysis shall comply with the 2005 King County Surface Water Design Manual. DDES approval of the drainage and roadway plans is required prior to any construction. b. Standard plan notes and a construction sequence as specified in the King County drainage manual shall be shown on the engineering plans (Reference Section 7B). c. A stonn water pollution prevention and spill (SWPPS) plan shall be included with the project engineering plans as required in Chapter 2 of the drainage manual. d. Stonn water facilities shall be designed using the KCRTS conservation flow control standard. Water quality facilities shall also be provided using the basic water quality protection menu. If the proposed onsite stonn water pond is used as a wet pond for water quality treatment, the facility shall be revised as necessary to comply with requirements for a 3: I flow path for water quality treatment as outlined in the drainage manual. e. To implement the required Best Management Practices (BMP's) for treatment of storm water, the final engineering plans and technical information report (TIR) shall clearly demonstrate compliance with all applicable design standards. The requirements for best management practices are outlined in Chapter 5 of the drainage manual. The design engineer shall address the applicable requirements on the final engineering plans and provide all necessary documents for implementation. The final recorded plat shall include all required covenants, easements, notes, and other details to implement the required BMP's for site development. ···· f. All runoff control facilities shall be located in a separate tract and dedicated to King • LOSPOO 19 -Martin Page 6 of 13 County unless portions of the drainage tract are used for recreation space in accordance with KCC 21A.14.180. g. During preliminary review, the applicant received approval for a drainage adjustment (L06V0043) regarding the building setbacks for constructing an offsite drainage pipe within the adjacent plat of Shamrock. The final engineering plans shall show the design requirements for constructing the offsite pipe and demonstrate compliance with all conditions of approval as listed in the drainage adjustment decision. To assure adequate capacity is provided for conveyance of storm water from the onsite detention pond, the overflow system and conveyance pipe shall be designed at a minimum for the I OOyear storm based upon developed site conditions. h. As depicted by field topography on the site plans, an upstream drainage basin is located east of the subject property. The final engineering plans shall be designed to address any requirements for bypass of upstream drainage as described on page 1-42 in the drainage manual. Due to groundwater conditions on the site, the design engineer shall also evaluate the need for interceptor trenches and easements for conveyance of drainage. As shown in applicants drainage report site map, an existing french drain is located in the eastern portion of the site which should be removed or relocated. Based upon the final designs, drainage easements may be required to convey surface or ground water through the project. i. As shown on the applicant's preliminary site plans, the existing stonn system located near the west property line shall be removed during site construction. The existing pipes and catch basins shall be shown on the final engineering plans with applicable notes and/or design requirements for removal. Access/Roads 8. The proposed subdivision shall comply with the 1993 King County Road Standards (KCRS) including the following requirements: .- a. Road A shall be improved as an urban minor access street. b. The frontage road (SE 125"' St) along Tract A shall be improved full width as an urban subaccess street and shall extend westerly from the project entrance at 146"' Ave SE to 144"' Place within the Shamrock plat. Sixteen feet of additional right-of-way shall be dedicated for completion of the road improvements. A temporary cul-de-sac located on lots 38 and 39 within the Shamrock plat shall be removed upon completing the road connection. Design standards for removing a temporary cul-de-sac are provided in KCRS 2.080. In the event off site right-of-way is not available to construct improvements to connect with 144th Place Southeast, Southeast I 25th Street shall be improved in the manner stated above to the west boundary of the Martin plat. A temporary cul-de-sac or other provision for emergency vehicle tum around may be required by the King County Fire Marshal. c. As shown on the preliminary plat map, an existing easement for ingress and egress is located along the north boundary of the plat and extends easterly to I 48'h Ave SE. Any rights of direct vehicular access to 148th Avenue Southeast granted to the Martin • (. LOSPOO 19 • Martin Page 7 of 13 10. 11. property by this easement shall be extinguished prior to or concurrent with final plat recording. d. Street trees shall be included in the design of all road improvements, and shall comply with Section 5.03 of the KCRS. e. Modifications to the road standards shown above may be considered by King County pursuant to the variance procedures in KCRS 1.08. f. (Deleted) There shall be no direct vehicular access between this plat and 148th Ave SE, except for the existing driveway that serves the abutting property from the 15 foot wide "panhandle" tract. A note to this effect shall appear on the engineering plans and the final plat. Off-site access to the subdivision shall be over a full-width, dedicated and improved road which has been accepted by King County for maintenance. If the proposed access road has not been accepted by King County at the time of recording, then said road shall be fully bonded by the applicant of this subdivision. (Deleted) Mitigation/Impact Fees 12. The applicant or subsequent owner shall comply with King County Code 14. 75, Mitigation Payment System (MPS), by paying the required MPS fee and administration fee as determined by the applicable fee ordinance. The applicant has the option to either: ( 1) pay the MPS fee at the final plat recording, or (2) pay the MPS fee at the time of building permit issuance. If the first option is chosen, the fee paid shall be the fee in effect at the time of plat application and a note shall be placed on the face of the plat that reads, "All fees required by King County Code 14.75, Mitigation Payment System (MPS}, have been paid." If the second option is chosen, the fee paid shall be the amount in effect as of the date of building permit application. 13. Lots within this subdivision are subject to King County Code 21A.43, which imposes impact fees to fund school system improvements needed to serve new development. As a condition of final approval, fifty percent (50%) of the impact fees due for the plat shall be assessed and collected immediately prior to the recording, using the fee schedules in effect when the plat receives final approval. The balance of the assessed fee shall be allocated evenly to the dwelling units in the plat and shall be collected prior to building permit issuance. L0SPOOl9. Martin Recreational Area Page 8 of IJ 14. The plat shall provide suitable recreation space consistent with the requirements of K.C.C. 21A.14.180 and K.C.C. 21A. 14.190 (i.e., children's play equipment, sport court[s], picnic table[s), benches, etc.). Other a. A detailed recreation space plan (i.e., location, area calculations, dimensions, landscape specs, equipment specs, etc.) shall be submitted for review and approval by ODES prior to or concurrent with the submittal of engineering plats. b. A perfonnance bond for recreation space improvements shall be posted prior to recording of the plat. 15. A homeowners' association or other workable organization shall be established to the satisfaction ofDDES which provides for the ownership and continued maintenance of the recreation, open space and/or sensitive area tract(s). 16. To implement K.C.C. 16.82 which applies to the site, a detailed tree retention plan shall be submitted with the engineering plans for the subject plat. The tree retention plan (and engineering plans) shall be consistent with the requirements ofK.C.C. 16.82, as well as the conceptual tree retention plan ( dated April 21, 2006). No clearing of the subject property is pennitted until the final tree retention plan is approved by LUSD. Flagging and temporary fencing of trees to be retained shall be provided, consistent with l<..C.C. 16.82 The placement of impervious surfaces, fill material, excavation work, or the storage of construction materials is prohibited within the fenced areas around preserved trees, except for grading work permitted pursuant to K.C.C. 16.82. 17. Street trees shall be provided as follows (per KCRS 5.03 and K.C.C. 21A.16.050): a. Trees shall be planted at a rate of one tree for every 40 feet of frontage along all roads. Spacing may be modified to accommodate sight distance requirements for driveways and intersections. b. Trees shall be located within the street right-of-way and planted in accordance with Drawing No. 5-009 of the 1993 King County Road Standards, unless King County Department of Transportation determines that trees should not be located in the street right-of-way. c. If King County determines that the required street trees should not be located within the right-of-way, they shall be located no more than 20 feet from the street right-of-way line. d. The trees shall be owned and maintained by the abutting lot owners or the homeowners association or other workable organization unless the county has adopted a maintenance program. Ownership and maintenance shall be noted on the face of the final recorded plat. e. The species of trees shall be approved by DOES if located within the right-of-way, and I • L0SP0019-Martin Pagc9ofl3 SEPA shall not include poplar, cottonwood, soft maples, gum, any fruit-bearing trees, or any other tree or shrub whose roots are likely to obstruct sanitary or storm sewers, or that is not compatible with overhead utility lines. f. The applicant shall submit a street tree plan and bond quantity sheet for review and approval by DOES prior to engineering plan approval. g. The street trees must be installed and inspected, or a performance bond posted prior to recording of the plat. If a performance bond is posted, the street trees must be installed and inspected within one year of recording of the plat. At the time of inspection, if the trees are found to be installed per the approved plan, a maintenance bond must be submitted or the performance bond replaced with a maintenance bond, and held for one year. After one year, the maintenance bond may be released after DOES has completed a second inspection and detennined that the trees have been kept healthy and thriving. h. A landscape inspection fee shall also be submitted prior to plat recording. The inspection fee is subject to change based on the current county fees. 18. The following have been established by SEPA as necessary requirements to mitigate the adverse environmental impacts of this development. The applicants shall demonstrate compliance with these items prior to final approval. J.) To mitigate the significant adverse impact the plat of Martin will have on the intersections of SR 900/14811, Ave SE and SR 900/164th Ave SE, the applicant shall install, either individually or in conjunction with other development projects in this area, the following improvements at the SR 900/148 111 Ave intersection: • A traffic signal, and • Eastbound and westbound left turn lanes The design for the SR 9001148th Ave intersection improvements shall be approved by the Washington State Department of Transportation (and by King County to the extent such improvements are located in County right-of-way). In addition, at a minimum, the existing entering sight distance looking east for the north and south legs of the intersection (602 feet and 386 feet, respectively) shall not be reduced as part of the intersection improvements. Documentation shall be submitted to show this requirement is met. All construction work associated with the intersection improvements shall be completed between April 1 • and September 30111 • This seasonal restriction shall be clearly shown on the final engineering plans. In lieu of the installation of the above-noted intersection improvements prior to final plat approval, the applicant may post a financial guarantee with WSDOT which assures the installation of these improvements within two years of the recording of Martin. In this event, intersection improvement design must be approved by WSDOT prior to King County approval of the engineering plans for Martin. If the above-noted intersection improvements have already been made by others prior to the recording of Martin, or a financial guarantee has been posted by others which assures the installation of these improvements, then the applicant for Martin shall pay a pro-rata share dollar i. LOSPOOl 9 • Martin Page IOoflJ amount to the developer who has made the improvements or "bonded" for the improvements, in an amount proportional to the impacts of Martin. The pro-rata share dollar amount to be paid . shall be set by WSDOT, and documentation shall be provided by the Martin applicant to the Ki'ng County Land Use Services Division to show this payment has been made, prior to final plat recording. The pro-rata dollar amount to be paid shall be based on the following: • The final Martin lot count • The trip distribution for Martin • The total trips contributed to the intersection of SR 900. l 48th Ave by the plats of Aster Park (LOOP0024), Stone Ridge (L99P3008), East Renton (L02P0005), Shamrock (L02POO 14), Rosemonte (aka Ironwood -LOJPOO 18), Martin (L05POO 19) and any future land use applications submitted to King County for which compliance with the King County Intersection Standards (KCC 14.80) is required at either the SR 900/148th Ave intersection, or the SR 900/164"' Ave High Accident Location. In the event that either King County or WSDOT adopts a formal "latecomer's" system prior to final plat recording, that system may be followed in lieu of the approach described above, at the discretion of the applicant, as long as at a minimum there is a financial guarantee which assures the above-noted intersection improvements will be installed within two years of the date of recording of the plat of Martin. (Comprehensive Plan Policy T-303 and King County Code 21A.28.060A] 2.) Documentation shall be provided to demonstrate to the satisfaction ofWSDOT that stopping sight distance (360 feet) is available on the east leg of the SR 900/148"' Ave intersection. The intersection shall be modified by the applicant, if necessary, so that this stopping sight distance requirement is met on the east leg. In addition, the applicant shall clear vegetation within the right-of-way along SR 900, east of 148"' Ave., to maximize the entering sight distance for the north and south legs of the intersection. [Comprehensive Plan Policy T-303 and King County Comprehensive Policy T-303 and King County Code 21A.28.060A) ORDERED this 3rd day of April, 2007. James N. O'Connor King County Hearing Examiner pro tem TRANSMITTED this 3rd day of April, 2007, to the parties and interested persons of record: Safit Basic Joel Delange Keith & Cathy Gilbert 12601 • 148th Ave. SE 12438 • 148th Ave. SE 12609 • 148th Ave. SE Renton WA 98059 Renton WA 98059 Renton WA 98059 Robert D. Johns Andy T. Phung Christi Schumann Johns Monroe Mitsunaga 9333 • 57th Ave. W 12502 • 145th Pl. SE 1601 -I 14th Ave. SE,# 110 Mukilteo WA 98275 Renton WA 98059 Bellevue WA 98004 Seattle KC Health Dept. Sara Slatten Triad Associates f I j: {. L0SPOOl9. Martin Page I I of 13 E. Dist. Environ. Health Cam West Development 12112-115thAve.NE 14350 SE Eastgate Way 9720 NE 120th Pl #100 Kirkland WA 98034 Bellevue WA 98007 Kirkland WA 98034 Kim Claussen Lisa Dinsmore Peter Dye DDES/LUSD DDES/LUSD DDES/LUSD MS OAK-DE-0100 MS OAK-DE-0100 MS OAK-DE-0100 Ray Floren! Nick Gillen Shirley Goll DDES/LUSD DDES/LUSD DDES/LUSD MS OAK-DE-0100 MS OAK-DE-0100 MS OAK-DE-0100 Kristen Langley Karen Scharer Steve Townsend DDES/LUSD DDES/LUSD DDES/LUSD MS OAK-DE-0100 MS OAK-DE-0100 MS OAK-DE-0100 Larry West Kelly Whiting DDES/LUSD KC DOT, Rd. Srvcs. Div. MS OAK-DE-0100 MS KSC-TR-0231 NOTICE OF RIGHT TO APPEAL In order to appeal the decision of the Examiner, written notice of appeal must be filed with the Clerk of the King County Council with a fee of$250.00 (check payable to King County Office of Finance) on or before April 17, 2007. If a notice of appeal is tiled, the original and six ( 6) copies of a written appeal statement specifying the basis for the appeal and argument in support of the appeal must be filed with the Clerk of the King County Council on or 6efore April 24, 2007. Appeal statements may refer only to facts contained in the hearing record; new facts may not be presented on appeal. Filing requires actual delivery to the Office of the Clerk of the Council, Room 1025, King County Courthouse, 516 3n1 Avenue, Seattle, Washington 98104, prior to the close of business (4:30 p.m.) on the date due. Prior mailing is not sufficient if actual receipt by the Clerk does not occur within the applicable time period. The Examiner does not have authority to extend the time period unless the Office of the Clerk is not open on the specified closing date, in which event delivery prior to the close of business on the next business day is sufficient to meet the filing requirement. lfa written notice ofappeal and filing fee are not filed within fourteen (14) calendar days of the date of this report, or if a written appeal statement and argument are not filed within twenty-one (2 I) calendar days of the date of this report, the decision of the hearing examiner contained herein shall be the final decision of King County without the need for further action by the Council. (. ,. L05P0019-Martin Pago 12 of 13 MINUTES OF THE MARCH 22, 2007, PUBLIC HEARING ON DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES FILE NO. L05P0019. James N. O'Connor was the Hearing Examiner in this matter. Participating in the hearing were Karen Scharer, Pete Dye, Kristen Langley and Ray Floren! representing the Department; Robert Johns representing the Applicant; and Andy Phung and Safet Basic. The following Exhibits were offered and entered into the record: Exhibit No. I Exhibit No. 2 Exhibit No. 3 Exhibit No. 4 Exhibit No. 5 Exhibit No. 6 Exhibit No. 7 Exhibit No. 8 Exhibit No. 9 Exhibit No. I 0 Exhibit No. 11 Exhibit No. 12 Exhibit No. 13 Exhibit No. 14 Exhibit No. 15 Exhibit No. 16 Exhibit No. 17 Exhibit No. 18 Exhibit No. 19 Exhibit No. 20 DOES file no. L05POOl9 DOES March 22, 2007, preliminary report for file no. L05POO 19, with attachments as follow: 2.1. Plat Map w/13 Lot Plat Design 2.2. City of Renton Sewer Availability 2.3. Surface Water Management Variance/L06V0043 2.4. Density Calculations w/R-4 zoning 2.5. ROW/Easement Exhibit, 2 pages Application for land use permit/plat no. L05POO 19 received 9/28/2005 SEPA Checklist received 9/28/2005 SEPA Mitigated Determination ofNonsignificance issued 1/26/2007 Affidavit of posting for Notice of Application indicating posting date of 11/4/2005; received by ODES on 11/8/2005 Revised Site plan (13 lot preliminary plat map) received 4/21/2006 Assessor's maps (2)-SE 10-23-05 & SW 11-23-05 Level I Downstream Analysis by Triad Associates, date received 9/28/2005 Traffic Impact Analysis by Transportation Engineering North West, received 4/21/2006 Request for School Information Form from Issaquah School District, received 11/12/2005 Email from Sara Slatten to Noreen Anderson dated 4/6/2005, with 14 pages of attachments Vicinity Map for L05POO 19, L03POO 18 & L02P0005, prepared by KC staff on 3/19/2007 DOES Field Report and GIS Information dated 11/3/2005 Letter (with 17 attachments) from A Phung, received 4/18/2006 Email to & from A Phung, re: ownership of 16' wide strip, dated 11/23/2005 Email (with 7 attachments) from Safet Basic re: road improvements & flooding dated 2/6/2006 Letter from Sara Slatten re: response to request for information & Phung/ownership, dated 6/22/2006 Email from Sara Slatten dated 7/12/2006 regarding Summary of An Phung discussions, forwarded by Kim Claussen on 7/13/2006 with 3 attachments Letter (with enclosures -3 pages) from Eric Campbell of Cam West to A Phung re: resolution of property ownership, etc, dated 9/14/2005 • • . • LOSPOOI9, Martin Page I J of 13 Exhibit No. 21 1121/2005 email from Safet Basic regarding property lines & noise with undated response from Lanny Henoch Exhibit No. 22 11/28/2005 email from K & C Gilbert with 11/29/2005 response re: sewer extension to their property Exhibit No. 23 Exhibit No. 24 Exhibit No. 25 Exhibit No. 26 JNOC:gao L05POOl 9 RPT Email from Ray Floren! re: ownership documentation, dated 6/22/2006 Email from Ray Floren! re: ownership documentation, dated 6/28/2006 Letter from A Phung, re: property ownership, dated 3/19/2007 Testimony of Raymond Floren! dated 3/22/2007 ® King County partment of Development and Environmental Services nd Use Services Division Oakeedale Avenue Southwest Renton, Washington 98055-1219 206-296-6600 TTY 206-296-7217 Project Name: Martin Property Project Addreas and Parcel Number: 1023059393 Appllcant/Oealgn Engineer Name: CamWesV Rebecca Cushman Address: 12112 115111 Ave NE ---;; Web Date: 0912812005 ROAD STANDARDS VARIANCE REQUEST TO THE COUNTY ROAD ENGINEER For alternate formats, call 206-296-6600. ne ng Firm Name: Triad Associates Telephone: 425 821-8448 City, State, ZIP: ODES Engineer lnlUels: Kirkland WA 98034 D Route Appllcation to LUIS 0 Check here If project engineering plans are approved and construction has begun. INSTRUCTIONS TO APPLICANT/DESIGN ENGINEER: Please be sure to Include all plans, sketches, photos and maps which may assist in complete review and consideration of your variance request. For a complete list of road variance submittal requirements, refer to separate 11st from DOES. Fallure to provide all pertinent Information may result In delayed processing or dental of request. Please submit this request and appHcable fee to the Department of Development and Environmental Services (DOES) Permit Center at 900 Oakesdale Ave. SW, Renton, WA 98055-1219. To make an appolnbnent for permit submittal, please cell 206-296-6797. For more information, refer to the ODES Web site, www.metrokc.gov/ddes. APPLICABLE SECTION($) OF STANDARDS: 1993 KC Road Standards 2.12C and D. JUSTIFICATION (see attachments, pages see attached AUTHORIZATION SIGNATURES: DOES STAFF RECOMMENDATION eslgnee: ----to ___ ,): Check out the ODES Web site at www.metrokc.gov/ddes RoadStandardsVarRaq6_ 19_07 .doc le-req-rdvar.pdf 09/28/2005 Date Paga 1 of 1 ~-- • • • f King County Road, and EnSlneertng DM1lon Departmen1 or Publlc\\t>rks RECEIVED !~AY OJ 199( \aler BuUd1ng 400 Ye,ler Wllv Room 400 Sratde, WA 98104·2637 April 27, 1994 TO: Gary Kohler, Manager, Land Use Services Division Department of Development and Environmental Services (DDES) PJ...LI.::!: Jim Sanders, P.E., Development Engineer King County's illumination requirements on arterial streets differ from those required by Puget Power for residential streets. Section 2. I 2C, of the 1993 King County Road Standards, allows ODES to approve illumination as a means of mitigating deficient sag vertical curves for night time conditions. In an effort to eliminate inconsistencies in illumination designs, this office met with Puget Power regarding criteria for illuminating sag vertical curves on residential streets. We mutually agreed on a minimum light level of0.4 foot-candles and a 6:1 uniformity ratio. To meet these criteria, design residential street lighting as follows: 100 watt High Pressure Sodium luminaires 25 foot mounting height I 00 to 120 foot spacing, throughout the sag curve, as defined by King County Road Standards Illumination plans, which incorporate these elements, will provide night. time stopping sight distance on roadway widths of22 to36 feet, without excessive illumination of neighboring homes. I request that your engineering review staff utilize these standards in future considerations. If you have any questions concerning this matter, please contact Paulette Norman at 296-6596. cc: Greg Frisbee, Lighting Engineer, Puget Power @ ".'.'.'.'." Harold Taniguchi, Interim Manager, Roads and Engineering Division A:!Jll: Tom Benek, Road Variance Engineer, Engineering Services Linda Smith, Signal Operations and Design Engineer Martin Property-Technical Information Report • 3 OFFSITE ANALYSIS • • Please refer to the "Martin Property Level I Downstream Analysis" by Triad Associates, dated September 18, 2005, as submitted and approved by King County . September 20, 2007 Job #04-257 Page 3-1 • Martin Property King County, Washington Level 1 Downstream Analysis i. Prepared for CamWest Real Estate Development, Inc. Triad Job No. 04-257 • w Prepared By: Martin Property -Level 1 Downstream Analysis Prepared For: Cam West Real Estate Development, Inc. Martin Property Level 1 Downstream Analysis King County, Washington Issued: September 18, 2005 Kristen Anderson, E.I.T. Reviewed By: Rebecca Cushman, P.E. 9/18/2005 Job #04-257 /rruAD . '""' ""' ---· Page i 1 •• • Martin Property • Level 1 Downstream Analysis Table of Contents 1 TASK 1 STUDY AREA DEFINITION & MAPS ................................................... 1 1.1 lntroductlon .......................................................................................................................... 1 1.2 Study Area ............................................................................................................................ 2 2 TASK 2 RESOURCE REVIEW ........................................................................... 2 2.1 King County Basin Reconnaissance Program ................................................................. 3 2.2 Sensitive Areas Follo .......................................................................................................... 3 2.3 King County Salls Survey .................................................................................................. .4 2.4 Federal Emerr,ency Management Agency (FEMAJ ........................................................... 4 . 2.5 King County Wetland lnventory .......................................................................................... 5 3 TASK 3 & 4 FIELD INSPECTION & DRAINAGE SYSTEM DESCRIPTION AND PROBLEM DESCRIPTIONS ............................................................................. 5 3.1 Existing Site Conditions ..................................................................................................... 5 3.2 Ons/te Dralnage ...•...........•................................................................................................... 11 3.3 Offs/te Drainage .........•...•.......................................................•...•...•...••................................ 7 4 TASK 4 DRAINAGE SYSTEM DESCRIPTION ..............•...........•.............•.•....... 9 4.1 Downstream Description .................................................................................................... 9 4.2 Downstream Problems ........................................................................................................ 9 5 TASK 5 MITIGATION OF EXISTING OR POTENTIAL PROBLEMS ............... 11 APPENDIX iMAP DOWNSTREAM DRAINAGE EXHIBIT ONSITE FEA TVRES EXHIBITS WESTSIDE OF SITE EASTSIDE OF SITE DRAINAGE BASINS (K.C. BASIN RECONNAISANCE PROGRAM 1987) LOWER CEDAR RIVER BASIN MAP (PRINTED 8-18·05) KING COUNTY COMMUNITY PLANNING AREAS FLOOD INSURANCE RATE MAP #530071 0350 A (F.E.M.A.) KING COUNTY SOILS SURVEY MAP AND LEGEND MPSR/1' PREP.tr.~ BY .'d!Sl1 91S, 11 ... .., a,, aOOI) Sci: TII'. sec. T ION (p TABLE 3.2.2.B OF TIIE 1998 KCSWDM TOPOZONE TOPOGRAPHIC MAP LOWER CEDAR RIVER TRIBUTARIES OFFSITE ANALYSIS DRAINAGE SYSTEM TABLE OFFSITE ANAL YS!S • DRAINAGE COMPLAINT MAP DRAINAGE COMPLAINTS TERRASERVER AERIAL IMAGE SENSITIVE AREAS FOLIO MAPS SIENNA ROADWAY IMPROVEMENTS 9/18/2005 Job #04·257 Page ii Martin Property -Level 1 Downstream Analysis • 1 TASK 1 STUDY AREA DEFINITION & MAPS 1. 1 Introduction ( . e The project proposes to construct 14 single-family lots on approximately 3.71 acres in King County, Washington. The site, currently referred to as Martin Property, is north of the City of Renton boundary and between 144th Place SE and 148th Avenue SE. Martin property is within Section 10, Township 23 North, Range 5 East, W.M., King County, Washington. The Vicinity Map below shows the general location of the site. This Level I Downstream Analysis describes drainage to and from the site per Tasks 1-5 (Page 2-10 through 2-13) of the 2005 King County Surface Water Design Manual (KCSWDM). 911812005 Job #04-257 .. __ Jf'INj/{ ft'°""' T.Y. ro 1-405 V,¥ .. !i§....!:!..2.!!.L£. :S S('._ !J;;!!.£!. ~. Vicinity Map Not to Scale ----··· Page I :- Martin Property -Level 1 Downstream Analysis 1.2 Study Area The study area, per Tasks I & 2 (Definition, Maps and Resource Review), will extend up to I mile downstream of the site. A one mile radius from the site is shown on the King County iMAP (printed 6/16/05) available in the Appendix. The site is rectangularly shaped, with a 15' wide 'flagpole' road on the northeastern edge extending approximately 120' eastward to 148'h Ave NE. The upstream, offsite basin is limited to a small area (less than 0.83 acres) composed of three parcels neighboring the eastern edge (1023059355, 1023059038, and !023059341). As required, the upstream limit goes far enough to preclude any backwater effects from this project. Onsite runoff flows southwest as evident by the site's topography. A french drain collects runoff a few feet offsite of the western site border in the neighboring Shamrock development's tightlined conveyance system. The intercepted drainage is conveyed to the Shamrock detention wetpond and released gradually via the associated control structure. The downstream, offsite analysis extends to the Maplewood Creek beyond 1481h Ave SE and SE 142nd St leading to the Cedar River. An appendicized iMap figure is available to observe the one mile radius limit around site. Per Tasks 3, 4, and 5, the downstream study area is only required to extend to the quarter-mile point located near 148 1h Ave SE and SE 142"d St (as shown on the Existing Conditions Exhibit providing a circle with a Y. mile radius) or a location where the project site area is less than 15% of total tributary drainage area to the quarter-mile point. 2 TASK 2 RESOURCE REVIEW Available maps and information reviewed which are included for the following Resource Review are: Lower Cedar River Basin Map Sensitive Areas Folio Maps FEMA JOO-year Flood Plain Map (September 12, 1978) Drainage Complaints on file at King County Records Division King County Community Planning Areas (May 1985) Resources reviewed and listed in the 2005 KCSWDM discussed below include: King County Basin Reconnaissance Program 9/18/2005 Job #04-257 /fRIAD ' '""'""' -- Page 2 Martin Property -Level 1 Downstream Analysis Sensitive Areas Folio King County Soils Survey FBMA King County Wetlands Inventory Other Offsite Analysis Reports (more specifically, Sienna Level I Downstream Analysis-dated 8/1/2001 and Shamrock Level I Downstream Analysis-dated 1/1/2004. Resources listed in the 2005 KCSWDM which were not reviewed are: Critical Drainage Area Maps Road Drainage Problems Migration River Studies 2.1 King County Basin Reconnaissance Program According to the King County Basin Reconnaissance Program Summary (Vol. 2), the site is located within the Lower Cedar River Sub-basin of the Cedar River Drainage Basin (see Basin Maps located in the Appendix). The site is located within the Newcastle Community Planning Area as shown on the appendicized delineation of King County Community Planning Areas. 2.2 Sensitive Areas Folio Maps from the King County Sensitive Areas Folio (December 1990) show that the site is not in a sensitive area with regard to seismic hazards, coal mine hazards, erosion hazards, wetlands, streams, or 100-year flood plain. However, a Class IV wetland has been delineated centrally along the western boundary of the site. 9/18/2005 Job #04,257 /rRIAD Page J • (. ' •• Martin Property -Level 1 Downstream Analysis 2.3 King County Soils Survey According to the King County Soils Survey, the majority of the site lies within Alderwood soils (AgB and AgC), i I "'" i I > ' . I _/· Cv8 I F: . :@·-) _l '\\ /\', AgD ., ,,..-r--, \ r·· I I .. \ \ I \ I Ag8 "· ) / AgC Bh~) \ NC 4rH AVE:NUF ' APPROX/MA re SlrC LOCArlON N TS See the appendicized King County Soils Survey Map and Legend. Table 3.2.2.B of the 1998 KCSWDM classifies this type of soil in the SCS Hydrologic Soil Group C and the Till KCRTS Soil Group (available in the appendix), A 'Subsurface Exploration, Geologic Hazard, and Preliminary Geotechnical Engineering Report' (January 27, 2005) prepared by Associated Earth and Sciences, Inc, is available for review in the appendix, 2.4 Federal Emergency Management Agency (FEMA) According to the appendicized FEMA Map #53007! 0350 A (dated September 29, 1978), the site is not located within a !00-year floodplain, 9/1812005 Job #04-257 /TRIAD Page 4 Martin Property -Level 1 Downstream Analysis 2.5 King County Wetland Inventory According to the King County Wetlands Inventory Maps there are no wetlands located onsite .. However, a small (0.03 acre, approximately) wetland has been observed near the central-western portion of the site. A wetland study will be completed and the wetland area will be marked. Appropriate buffers based on wetland classification will be incorporated into the final design. 3 TASK 3 & 4 FIELD INSPECTION & DRAINAGE SYSTEM DESCRIPTION AND PROBLEM DESCRIPTIONS The following site description is based upon a field inspection performed on August 241\ 2005 by Rebecca Cushman, P.E. and Kristen Anderson, E.I.T. (Triad Associates) The weather on August 24th was mildly humid and sunny. The entire site was walked and downstream drainage conditions were examined on that date. Observations are noted in this section. 3.1 Existing Site Conditions Refer to the Onsite Features Exhibits to aid in the following site description. One single-family home along with an associated driveway, two barns and internal fencing currently exist onsite. Approximately 0.03 acres in the central western edge of the site appears to have some wetland characteristics such as reeds, buttercups, and sedges. During this site visit the 0.03 acre area was dry. It appears to be self-contained and did not have outgoing flows. The wetland characteristics do not appear to extend beyond the property line onto the western neighboring parcel. Most of the existing site terrain is mildly sloped (2-5%) from northeast to southwest. Steeper slopes (8-10%) are on the 15' wide flagpole extension. The highest elevation (480 feet) is at the tip of the flagpole extension adjacent to 148 111 Ave NE. The lowest elevation is at the southwest comer ( 443 feet). The entire site is pastured with some trees and blackben·y overgrowth. Deciduous trees are planted in line with three 9/18/2005 Job #04-257 /rRJAD '''" ,,,,. Page 5 • Martin Property· Level 1 Downstream Analysis shallow channels. Three Evergreen trees (30-40 feet tall) are near the existing onsite structures. existing structures. Much of this site is enclosed by fencing. The 15' wide gravel drive running from 148th Ave toward the western property edge is fenced off from the rest of the site _except at the garage entrance driveway. The east, west and south property boundaries are entirely fenced. In addition, onsite fence enclosures exist within the site. One 20 x 20 fence enclosure contains blackberry brambles on the west side of the residence's driveway. A second fence enclosure appears to be used as a corral for livestock and is located in the southeast comer of the site. This corral is offset from the eastern and southern fence line by nearly IO and20 feet, respectively. 3.2 Onslte Drainage Onsite elevations range from 478 feet to 444 feet. The majority of the site consists of elevations between 444-470 feet. The site elevation in the northeast comer is at elevation 478' at the northern tip of the 15' wide flagpole end (near 148th Ave SE). The slope along the flagpole access route is nearly 9%. This area is graveled and is used as access to the current onsite residence's driveway. There are three notable onsite drainage paths that extend to the western edge of the site. One ditch (labeled 'A' on the Onsite Features Map) is on the west half of the northern edge of the site. This ditch crosses in front of the driveway, through blackberry brambles and through a line of medium-sized deciduous alder trees before reaching the west edge of the site. A second ditch (labeled 'B') extends from an upstream eastern parcel along the entire southern edge of the site also leading drainage to the western edge of the site. This ditch is sporadically lined with blackberry brambles that increase in density toward the west. The southern-edge ditch increases width to nearly four feet as it ventures west. A third ditch (labeled 'C') is located amongst the central path of trees in the western pasture. The overall site has one distinct onsite drainage basins flowing southwest towards the neighboring Shamrock Development. 911 B/2005 Job #0<-257 ,.--·· Page 6 Martin Property· Level 1 Downstream Analysis Other notable onsite features are shown on the Onsite Features Map. This includes a 2' diameter 'home-made drywell' that exists in the small front yard of the residence. It appears to be an empty metal barrel in the ground with a pipe outlet inside receiving drainage from the south. Drainage entering this drywell drains westerly during overflow to ditch A. A second onsite feature is a I 0-15' long drainage rock path/french drain runs parallel to both the northern fence line and northern corral fence line (labeled as a 'french drain' on Onsite Features Exhibit). This runoff collection appears to outlet to the east-to-west ditch/swale along the southern property line, however the outlet was not observed 3.3 Offslte Drainage The basin's offsite drainage path is described in the following paragraphs. To assist in understanding the narrative, please see the Downstream Drainage Exhibits. The only upstream areas draining to the site are from three eastern adjacent properties (I 023059355, I 023059038, and I 023059341). The off site flow from this site enters a backyard French drain system (D, see Downstream Drainage Exhibit) alongside the Shamrock site's eastern border. This runoff is incorporated into Shamrock's tightlined storm drainage system and collected in a wet detention pond within Shamrock. The associated control structure releases runoff as required by Level Two Flow Control Standards (matching peaks at the 2-and I 0- year, 24-hour storm event and durations between Vi of the 2-year and 50-year storm events). The released runoff flows south through a 120'-42" culvert underneath 128 1h St, into a drainage ditch behind 14415 SE 128 1h St. The ditch ranges from 2 to 3 feet deep and then travels 34' under a driveway via an 18-inch culvert. No formal drainage complaints were provided by King County or the City of Renton; however, overtopping of the ditch was noted on November 14, 200 I during a site visit on the Sienna Project. The storm water appeared to be 2-3 feet below the existing house and did not enter the area behind the home within the chain link fence. Once the stormwater reaches the south property line of this parcel, the storm water enters the north property line of a recent development (Sienna). The flow is then picked up in an emergency overflow birdcage structure at SDMH, tightlined through the 36- inch bypass pipes within the Sienna development and conveyed in a southerly direction. (See Sienna Road and St01m Plans, Sheet IO of 36-available in the appendix). At NE 2"0 Street (a.k.a. NE 132'"1 St) the tightlined conveyance is joined by the tightlined and controlled 9/1812005 Job #04-257 /rRTAD ;""'""'· ..... --··. Page 7 i Martin Property -Level 1 Downstream Analysis release from the Sienna wetpond. The 36" tightlined system turns west to run along NE znd street and turns south to follow the westside of Jericho Ave NE (a.k.a. 1441h Ave) .. The tightlined flow is joined by an westward-flowing culvert underneath 144 1h Ave and continues west and then south as a ditch. The ditch is briefly culverted to the south under the intersection between SE 136th Street and 142nd Ave SE, and exits a 42-inch culvert with a trash rack into a large swale known as Maplewood Creek. The Maplewood Creek/swale meanders southand east as shown on the Topozone Topogrpahic Exhibit until reaching the outfall into Cedar River. At the time of the site visit the Maplewood Creek swale was dry. At the 42-inch culvert the creek is a broad swale (20 feet wide) and ten feet deep. The swales width, and especially its depth, increase towards Cedar River. It is more accurately described as a ravine as the drainage path is followed south. 911812005 Job #04-257 /rRJAD "' " " . Page 8 Martin Property -Level 1 Downstream Analysis .. 4 TASK 4 DRAINAGE SYSTEM DESCRIPTION 4.1 Downstream Description Drainage from the site is tributary to one drainage sub-basins. The The tributary associated with this project leads to collection point 6 as shown on the map of Lower Cedar River Tributaries available in the appendix. An aerial of the downstream drainage system through Maplewood Creek is available in the appendix. 4.1.1 Offslte Runoff to Cedar River Runoff from the basin is tributary to Cedar River and, ultimately, Lake Washington. The following narrative describes the downstream drainage paths for the basin. No downstream drainage problems were observed at the time of field investigation. 4.2 Downstream Problems A list of downstream drainage complaints within a I mile radius of the site was obtained per King County Request via the 2005 manual. WLRD Stom1water Services Section indicated that complaints pre-1990 are not readily available. In addition, complaints older than IO years are not required per the 2005 KCSWDM and, therefore, not included. Additionally, King County was not able to locate some of the complaints in the area and will not be included in this report. The list was evaluated for pertinent complaints within the downstream corridors of the site. The following narrative lists the downstream problems reported to the King County Water and Land Resource Division (KCWLRD). Downstream complaints lists for near by developments (ie. Shamrock, Sienna) were reviewed in addition to the complaints obtained for this project. According to complaints compiled by the King County Water and Land Resources Division available in the Shamrock Downstream Analysis (l / l /2004 ), several instances of past flooding have been reported in areas near the downstream drainage path of the site. Problems of flooding and drainage in the area south of lhe Sienna project seem to have been 9/18/2005 Job #04-257 /rRJAD Page 9 i [ __ ie Martin Property -Level 1 Downstream Analysis alleviated with the recent installation of a 36-inch pipe system . Details of these complaints are available in the Shamrock Level I Downstream Analysis. Since the installation of the 36-inch conveyance system there has been one downstream complaint This complaint comes from the resident at the address of 5511 NE 2nd Street The resident complains of the roadside ditch overtopping, Per conversations with Ron Straka with the City of Renton, this is considered a maintenance issue. In addition, available topography suggests that potential over-flows from the Sienna project would flow east along 3rd Street to Lyons Avenue, then south along the west side of Lyons A venue rather than further east to the subject property, Some complaints have been documented near the Martin project's downstream path. A compilation of the drainage complaints reviewed for this site are in the appendix. An Offsite Analysis Drainage System Complaint Map shows the approximate location of the drainage complaints on a Thomas Guide map, King County's 2005 Surface Water Manual does not require drainage complaints that are more than IO years old to be included in a Level I Downstream Analysis due to the age of the problem, development that has occurred, etc. A list of drainage complaints within a one mile radius has been compiled and evaluated in reference to the proposed project's downstream drainage pathway, Please refer to the master list of complaints and annotated Offsite Analysis Drainage System Complaint Map included in the appendix. The complaint map shows the approximate location of the drainage complaints on a Thomas Guide map. King County's 2005 Surface Water Manual does not require drainage complaints that are more than IO years old to be included in a Level I Downstream Analysis due to the age of the problem, development that has occurred, etc, Complaints #1 through #42 have been listed, however, they are not within the downstream drainage path. Copies have been provided as informational only, The following complaints are due to either flooding or erosion. Drainage Complaint #28 (location shown on the Offsite Analaysis -Drainage Complaint Map) was at or near the intersection of 148th Ave SE and S.E. 136th Street in August of I 999. These were concerns about possible future flooding due to development at that location. Drainage Complaint #10 is a description of flooding near Amonte Florist at 4801 NE 4th Renton, WA. This flooding was due to clogged cb's and culverts and appears to be a maintenance issue. The siltation of cb's and culverts will not be 9/1812005 Job #04-257 /TRIAD --- Page I 0 j ' 'e Martin Property -Level 1 Downstream Analysis aggravated by development of the Martin Property due to not being located within the Martin Site's downstream path. Complaint #30 in August 2000 was due to citizen concern regarding flooding from upstream development. Capital Improvements were under taken to correct historic flooding expressed by this neighbor. The Martin Property is not upstream of this flooding described in this complaint and should not aggravate the situation during development. Complaint #12 in 1997 was flooding in Puget Colony Homes (also not downstream of the Martin Site). Complaint #16 and #17 were of ponding in yards and are not downstream of the proposed site. Complaint #2 and #3 are related to a residence that is low with respect to the road and neighboring lots and storm water tends to pond in the driveway. This residence is not in the drainage path of the Martin property. Complaint #42 and #39 are regarding a pond outlet control structure that is not within the Martin Site's drainage path. It was clogged and flooding. The remaining drainage complaints on record that are not related to flooding or erosion were often related to suspected pollution or broken fences. Complaint #24, #21, #37 and #38 were pollution related. Complaint #5 is at or near the intersection of SE 128th and 143rd is in regards to possible pollution led to storm drainage system. Complaint # 15 is a broken fence at an RID pond outside of our drainage path. Complaint # 31 is a broken fence at easement. Complaint #4 is permission to vacate a road that is unrelated to this project. The proposed development of this site will not aggravate the above mentioned situations. 5 TASK 5 MITIGATION OF EXISTING OR POTENTIAL PROBLEMS The project proposes to construct a storm water detention pond which will provide Level 2 Flow Control per the 2005 King County Surface Water Drainage Manual. The pond will incorpornte sufficient dead storage to also provide Basic Water Quality Treatment in accordance with King County requirements. Additionally, all new storm water conveyance systems will be designed in accordance with the criteria outlined in the current King County Surface Water Design Manual. 911812005 Job #04-257 /TRIAD . . . ,., ' ·,' " ........ Page 11 j Martin Property -Level 1 Downstream Analysis During the field investigation of the downstream drainage course ongoing eros10n or downstream drainage problems were not observed onsite or near Cedar River. To mitigate any potential problems, overflow route for flows larger than the 10-year peak storm event wi II be directed into the downstream pipe system. The proposed detention pond will be modeled assuming the existing site as completely forested as required by the 2005 KCSWDM. Flows will be detained and released controlling the 2-and 10-year peak flows as well as matching the durations of storm events from the 1/2 of the 2-year through the 50-year storm. 9/18/2005 Job #04-257 /rRIAD • '" '" I"' ' --- Page 12 i re (. Martin Property -Level 1 Downstream Analysis APPENDIX iMAP DOWNSTREAM DRAINAGE EXHIBIT ONSITE FEATURES EXHIBITS WESTSIDE OF SITE EASTSIDE OF SITE DRAINAGE BASINS (K.C. BASIN RECONNAISANCE PROGRAM 1987) LOWER CEDAR RIVER BASIN MAP (PRINTED 8-18-05) KING COUNTY COMMUNITY PLANNING AREAS FLOOD INSURANCE RATE MAP #530071 0350 A (F.E.M.A.) KING COUNTY SOILS SURVEY MAP AND LEGEND REPORT PREPARED BY AESI, INC. (January 27, 2005) TABLE 3.2.2.B OF THE 1998 KCSWDM TOPOZONE TOPOGRAPHIC MAP LOWER CEDAR RIVER TRIBUTARIES OFFSITE ANALYSIS DRAINAGE SYSTEM TABLE OFFSITE ANALYSIS -DRAINAGE COMPLAINT MAP DRAINAGE COMPLAINTS TERRASERVER AERIAL IMAGE SENSITIVE AREAS FOLIO MAPS SIENNA ROADWAY IMPROVEMENTS 9/18/2005 Job #04-257 Page 13 ,,.. .. , @ King County IIIIE!lm!ll llmlllll 4144'1144¥ r Legend Ill The Surfer /Vi 1¥-"5->:U"!. !Ill! Buffeted SekJction '""" D Thomas Brothern Map Page D Paree~ * 'WLRD Surface Water Engineering 0 Lakes and Large Rtvers Projects rl straams . -County Boundary m WLRD Drainnge C.Omplairlts I -• Slreets ;.I ll~"tr}· '""'' Page I of I Comm1mts A1M.J91M he lnrormation included on this map has been compiled by King County staff from a variety of sources and Is subject to change without notice. King County makes no representations or warranties, express or lmpUed, as to accuracy, completeness, tlmeUness, or rights to the use of such information. K!ng County shall not be liable for any general, specla1, Indirect, lnc!dental, or consequential damages lnclud!ng, but not Umlted to, ost revenues or lost profits resulting from the use or misuse of the Information contained on this map. Any sate of this map or Information on his ma is rohlblled exce t b written ermlsslon of Kin Coun . Klng_Q.2JilliY. I GLfLQ~umr I tw,,_:; I ~.ife.§.1 QQffim~!l!i I~ By visiting this and other King County web pages. you expressly agree to be bound by terms and condlUons of the site. J..h~_c;tfil{l.l!§, http ://wwv,5. metro kc. gov/servlet/com.esri .esrimap. Esrimap ?ServiceName~overview&Clie... 8/16/2005 I -, I 1 I J_---j I -, UPSTREAM, OFFS/TE TRIBUTARY AREA V/////11 ,,,,,, I I I ---------,--1 ,---- 1 ,______________ If 111 , 1 I I 11 I I r--,-- , I f--, J---1-f-t-H I I I I I 48TH A~ ' ' ' ' ' ' ' ' _,l ---n_, f l_ __ __r--- ~~~ II/ ~@ SHAMROCK , _ ~ .. , -__ Lr.lJJM? a11211 .. ,-.11E _ ... _ ., .. ,, ..... -----~-- "' ~ i )... 1/) i ..... iii IU ~~ (!j !!lol :i: "t ,..-~ i!E ;:=:: ::i; "I: ... ._, ~ ~ii ilk~ ~;i:! sa.:!I) ~~ "t I I!: (.) ;: () I i:: ~ g Q: ~ f') .____:®: ;::-·-· ·.·] . ~::;.:.-_.· ~~ ~ C: 8 <, ~ . . . .... ·.·.··.··.·.·.·. -TUI::~ . :i-_:_.:-:-... :::::::1····::-:-~~ : :i: t ::::>:::::::::::<::::::~::>--· -----: -·r I TOTAL SITE AREA • 3.11 AC ~ ~:; ·, ... ... ...:._ n " ,--I I i -+--i~ __ J----, ..,. 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Lower Cedar River Basin Map Page l of l -· •® King County llllllll!II-Wi§IIJIB4¥ Comments &IMHA,M Natural Resources ,mcl Parks » Water and Land Resources Division » Lower Cedar River Basin i. .~·• L • ---~ .... lt'Jlt.e/~""' --9our"'"" ~..-d"'I' . ~ti:lb~,by lr,n:,,~ A1u&,,...,r1 Ulb11,, (l,o-.-.h AIAII kiuidorr Updated: May 29, 1998 > ·~~ ,1 .. , ..... \ ':· .. ·:/_':--_~/.:·· . ........... .. \. ,' 1--,·-··• -.T . -Ji " ~- 1, -· \ ', ' hd: Cun King County I Natural Resources ~ Parks I Water & Land I News I Services I Comments I Search • Links to external sites do not constitute endorsements by King County By visiting this and other King County web pages, you expressly agree to be bound by terms and conditions of the site The details http://dnr.metrokc.gov/wlr/BASIN S/cedarmap. htm 8/18/2005 r------L-_UNt;_.::.!._K <...tl)1'K K.IV t:K lf< f~ I f\Kit:? -' • " ,, (I) j! .J z >-.... j Cl) co N --< "C ..., C .,.. c:a ::, .... I 0 Cl) ..., ( a: t co ..., .0 ~ w ·= E ,,/ > (0 +-' 0 ·e ··-· "O C: :, C CV ~ z ' a: E Q. ..... :, C a: 0 .c. 0 t i en (,J ·-< C 1v y E a o C (0 .5 a. w 'iii ..8 = Cl) (0 ~8 .... ·-0 (.) <i> ........ co I-Q.. a: Ii) w fi i ~ 0 ..J 0 -~ ~· ( •h ••, . . . ·~~ .' ~ .. ·~/ ./1~, N; , .. ,.. &' n,, ... . i I n ( 1 :r I '" f ....... :. ( . ' \ i i \ "'····\ -. 'i, i ~.i I j./ .. \ \.::: ·~" D ~} ./ Figure 1 KING COUNTY COMMUNITY PLANNING AREAS King County 1986 0 l 2 l 4 5 6 7 I MIi - l : 300,000 • • • This ffllP Is for flood lnsurinu purposes only ; It does not neus· milt show 111 irus wbJect io floo41n1 1.n the community or Ill p!Jnlmetrlc futures outside special flood huud ueu. For 1djolnln1 mip panels, see separately printed Index To M1p Pands. For 4escrlptlon of Elev1tlon Reference MMks, see pinef 530071 017~A INITIAL IOENTIFICA TION JANUARY 17, 19715 CONVERSION TO REGULAR PROGRAM SEPTEMBER 29, 1978 -;..· l . .?'T J ~ . . . I i l ~, 'Z, i ~ \I,. ~- 5 t:" J ~· ! -1 I i : J :-::rrr •'"T ·•~-. ~~ • . .# .......a.,'-\ !--~::;:::;\ L o ' '-_;~-J ;---r ,,/ ) -~1 ,,.f ,, 7 , ~ ZONE A t ~J-.. __ . ..,, ..... - • ) ' .r··- \-0 \ ""'-~ ~----Ur. ~· i t t ize,,-tt 1\\/E N. E -[ r-~Jl~-=-r--i--~-r---~~T_ I : Q ~ \ l t li i , • t l [1 ---i ~---· ! ' f ~ J t--_r{ .J ~---1 . -tu·-,~-_J ·--, , T ~ \ •I ---1 . -~rt-.. .., ~ t , r -J-Rtru to the CONVERSION TO REGULAR PROGRAM d.it c shown on ttils mip to determine when Ktuul1I ntes 1pply t o s1ructures in the zones where eltv1tlons or depths have been esubltsh.:d. To determ ine II lfood lnsurince Is 1v11f1b le In this community, contlct Y®' insunnce 11ent, or ull the N1tlon1I Flood Insu r· ~n,e1'rogr1m, 11 (800) 638~20, or (800) 424 ·8872. · .• g 5 J ,_., I J-.m -L 4=r= -~J..--':r-,-. l l ~,,, T r . D rr ---------,-1' ---~"'-rt~~NE ~ .. , ~ ,..·i J .• ,, I '~ l• .,. , _t .,.,_.> -., . ..;.t • APPROXIMATE SCALE ~ ., . ~,. - ZONE B ., J (§) ', ,, -., 1 ' ....... , '--~"" ...... 2000 0 2000 FE ET 3 E-3 F--3 E ...e. .. -·~·rt-:'•'"_, ' -, l V # -~ ., .... .....,_, -~~........i.···~:.i~tl'.--\ ) \·-·· ----+. ,r,. -·---::r.::-~ . . r~ r'r= r·~ / ,,...... . .,..,...,-,;i • L ~f •,·'•.. •·-, °'])~ ,,-. L \ .. J.. .'),.. ~ ... ~· .-· w., ! . 1 _ L1=-i I i \'\.)1 ___ · --<: _J , ii r=-r=rn, IMTIJMl. FLOOD INSURANCE PRGIRAM FLOOD INUIANCE RATE MAP IING COUNTY, WA&IINITON (UNINOORPORATED AREAS) PAGE 350 OF 650 (SEE MAP INDEX FOR PAGES NOT PRINTED) U.S. DEPARTMENT OF HOUSING ANO URBAN DEVELOPMENT .FED£RAL INSURANCE _AD~INISTRATION ZONE B I .I ··" ,-t' , ,..,=·-·" •-=-:.-it'-=-=-~~ ., ~ ~ I I ~-·j • ) 530071 0 530071 0350 A .r: a "' :, .. 3' r .! 0 530( ' 530\J SOIL MI\P is, N C::i c D l)NTY So , LS S LA R v E y M f\ P SHEET NO. 11 KING COU NTY AREA , WASH INGTON (RENTON QUADRANGLE) ~IN6 COUNTY 50ll-S SIAR\/Ey' L£tIFND. EPARTMENT OF AGRICULTURE INSERVATION SERVICE • SOIL LEGEND Th, firH c;opllol 1111hr i, th. inltl<1I on, of 1h, toll nome. A ucond copOol lerr,,, A, B, C, D, E, ~ F, lndlc;oln !he clou of 110?9. SymbGI• without o slope lellu or, •hose of n,orly te,,.el soils. SYMBOL .,. ~•,c A,O AkF .... AmC Ao B,C s.o s., . , o, Bo NAIIE Ald,rwood grove Hy 1ondy loom, 0 to 6 perctnl 110?91 Alderwood 9rov,lly 1ondy loom, 6 to 15 perc,nl 1lope1 Alderwood gravelly tondy loom, 15 to JO percent ,lope, Alderwc,od ond Kitsap 10111, vtry lletp Aren11, AldeMood morer!ol,O lo 6 peu:,nt 1lope1 • Arenh, Ald-ood motttlol, 6 to IS F*(ctM slope,• Arenls, E"ff•II rnot..-lol I Beaus ire g•ovelly sandy loom, 610 IS perc:tnl 1lc,p.1 Btousile grovtlly sandy loom, 15 lo 30 pef'ctnl 1lope1 Beousl1e g•avelty ,a..,dy le><>m, 40 to 75 p<11•cenl slope1 e.11,n.gt.om ••h 1-... Brl1col silt loom B,,cld•y 1lh loom Cb Cocntol Beochn Eo Ed hB E-<: E•D E-C laA loC loO KpB KpC K,O K,C H•C "' "' Ho 0, 0. 0.C 0.0 o., p, p, Po Py RoC RoD RdC RdE R, Rh Eorlmonl sill loo"' Edgewlcl. fine l<>ndy loorn E\lere11 ll'O"elly •ondy loo,..., 0 lo 5 p,1rcent s lope1 Everell gravelly 1ondy loam, 5 ro 15 perceril slop,11 Everell ll•ovelly sondy loam. 15 to JOpe,c•nl slope• Everell,Alderwood g•ovelly 1ondy loam1, 6 lo 15 percenl slop,,,, lndionolo loamy Fir,e sond, 0 ro 4 pe,cenl I lope1 lnd!onolo loomr fine 10.-.d, 4 10 15 pe,cenl slopes lndionolo loomr fine sond, 15 lo 30 percent slop,11 Kh1op sih loom, 2 lo B ~cent 1l09e1 KHsop 1d1 loom, 8 lo 15 percenl i1ope1 Kitsop silt loo,., 15 lo 30 percent 1lope1 Kious gravelly loomy sand, 6 lo 15 pe•c•nl slope, Mi>ted alluvial lon.d Neihon ve,y g•ovelly loomy 1on.d, 2 lo 15 percent 1l0pes Ne ... ber9 1lh lc,qm Nooksod, s i h loom No,-rna sandy loom O.cos pe-o! Orldio 1/h loom Ovoll 9rovelly loom, 0 10 15 pe,cent slopes (}..(ilt grov,lly loom, 15 lo 25 p,1re1n1 sloptts Ovo/1 gravelly loom, •Oto 75 petcen1 1lop41 Plkhvcl. loomy fl...., sond Pllchvcl. fine •ondy loam Pug.e 1ihy cloy loom Pvyoll ... p lln, 1or.dy loom Rognor fine sandy loom, 6 ta 15 percn,1 110~• Rogl"r<lr fine sandy loom, 15 ta 25 perun1 1lape1 Rognot•lncltonalo 011ocla1lon, sloplng • Rognor-lndlanalo os•oclatlon, mcd1ro1ely 11e,p • R•nlon 1111 loom Rl\11twosh So Salol slh loom Sh Samrnomlsh s!h loom ik S.ottl• muck Sm Shokar muck Sn SI ,11! loam So St,ohomlsh slh loam S, Snohom!1h silt IOC1m, rhlc:k ,,..rfoe• varlont Su Sulton slit loom lu Tukw!lo myck u, w, Wood!n ... 111• sill loam • Th'! c<rmposllfon of 1heu ""its Is more vor!oble thon 1h01 of th• othsrs in tht or•o, bvr !t hot been cootrolled well enovgh lo lntsrpret for 1he t><petted vu of The soils. KING COUNTY AREA, WASHINGTC Boundort, nolionol Stbte ..... . Counry, P<rrlsh, :... .... J .,,._ .. Sec1ion Ii,.., UnilK Townshlp 1;...._, not p.,..., 1<0.-., ... ;,.1,;c,,- Horl1c,n1ol on.d "•"•C Ho,-lzo.,101 control 11, Vsrllcol c<.>ntrol 11011 Unc1'tc~td 100• elevc L- ~ :;- ~ ~ ~ <( ;,(_ a i ll t; -) ~ ) • • Cl w ll.l ~ ,.-~ • OFF-SITE ANALYSIS DRAINAGE SYSTEM T /\BLE 91 • Surface Water Design Manual, Core Requirement #2 Basin: LOwER CE't)A.R RIVE:i;a Subbasin Name: CSDAR RIV£R.. Subbasln Number: Symbol Drainage Drainage Component Slope Distance Existing Potential · Observations of'field inSf?8<:toi" Component Ty.pe Description from site Problems Problems resource reviewer, or resident Name.Size discbaJ,g~ Type: sheet swafe, constrictions, under capacity, pondin-g see map stream, channel, pipe, drainage bashl, vegetation, % 1/4 mi= 1320ft overtopping, flooding.habitat or organism tributary area, likelihood of probk?m, pond; Size: diameter, cover, depth, type of sensitive destruction, scouring, bank sloughing, overflow pathways, potential impacts. surface area area·. volume sedimentation, incision, other erosion A D rT'c...H "-l% ON 5JT'E es· bl i" c::..H ~2% Di-!SITE c.. 1:> l'T Ll-1 Z2% ON $1i"E \.) ~NCH DRA.11'-1 2D' i:: 9\A_~IC. POND ~54o' F Cf.AL-Ve~.,-1:20' -42'' 7!z% ::::.050 1 L,lNJ:;,eR ,ze,"T\i Alie SE G D1Tc.1-t cz-,;, ........,,·, 6a11ND 144-15 ~ ~s, ~ea?/ C.Ul.-\/€:RT ~'-'~'' 7 h2 -:::qoo 1 H ~-. I e"-'IGR..,e=: ..... cf E:>-rrRA>4c:.e:: ,o ~ /100 I . "W TI bl-IT-Lt NE' T SIENNI\ 3b" -n e, 1-rru NE3:> 71zZ ~ /~ZC:>1-t- 5'/~55 S'ISTE:H K Drn:..H c=,,....,. '-""ID "'J<U ' ~2100+-H'f'U 71:> 142-'r,AVESE /_ C/.ALVE=RT l,.,fNC>f:~ 'Z3400,. S& 131,-,n, c;r M Tl<f\5H RACK 42" Cl,fLIIER1 ID 7:S4co '+-,AJ.Jr-. l/UTL£'f' MAPLIS' ~ ,' Triad Associates • • N f MAP OFFSITE: t\NAL..'fS\S -DRAINA~E C..DM?L.A1t--JT MA.~ 65E ~ -J . u..J c:i..1 V) PL "° :::; SE w w °'/~~~1 V) V, I-::r: I~ o.. ....J ....J ,-..... I-Q. 0.. "'t' CI)/ ' i= i= .-, ~ ~\ LJ') I..O --$--i ~ "<1" V ..... ...... "'-1" i:J FAIIRWOOri SE -t59TH + &..! .. -..... ' ~ .•.. .. -... -·. ·-·-··· ···-COMPLAI-NTS DRAINAGE C cmp,alnt , ... ~:.~~ .. _ Statue Problem Type Rec Datt PADD PADD1 PIN .~104 CLOSED H20LEVEL C Tue Jan 31 1995 120"' 148TH AVE SE 1123069081 I _.. 1998-0472 CLOSED RUNOFF C Tlle May 23 995 . 1400 144THAVE SE 1523059121 2 .---1995-0472 CLOSED RUNOFF RN Tµe May 30 1995 1400 144THAVE SE 162306912f 3 / 1995-0763 CLOSED VACATION C Mon Sep 4 1995 1401 134TH ST 6928000311 4 --1995-0788 CLOSED DISCHARG C ThuSep21 1995 1432 128TH ST 1023069035 .'.5 ..., 1996-0991 CLOSED DUMPING wac Mon Nov 20 1995 1281 142NOAVE SE 1023069281 i:.. ./ 1900-0167 CLOSED DIGGING C Tue Feb 6 1996 1222 148THAVE SE 1023059022 7 ~ 1996-0323 CLOSED 'M:T\.AND C Tue Feb 8 1996 1222 148THAVE SE 102306902 6 1996-0880 OPEN EROSION wac Thu Apr 4 1996 1432 128THST 1023069031 ~ • -1996-1401 CLOSED FLOG C Sun Jul 211996 128TH & 142ND A SE 1623069031 I c; ./ 1996-1771 CLOSED RUNOFF C Thu Oct 10 1996 1••• 148THAVE SE 102305902 I/ CLOSED FLOG C Wed Jan 1 1997 1410 133R0ST 892800021' IZ CLOSED FLOG NOA Wed Jan 29 1997 141" 133R0ST 892800021( I~ CLOSED FLOG R sun Jan 121991 1410J 133RDST 892800021' \"'1 -"4997--0716 CLOSED RIDFENC FCR Wed Apr 21997 13&1 131STST 1623069223 I:: -,~,o CLOSED DRAINAGE C Tue Sep 23 1997 1~"' 133R0ST 892800016( I, . LOSED DRAINAGE R Tue Sep 301997 1"11 133R0ST 892800018• 11 1997-1380 CLOSED DRAINAGE C Tue Sep.23 1997 . 14"' 133RD ST 892800017< l'e> .. f'J "'417-1625 OPEN BMP&apos;S WQA tue Dec 30 1997 1441; 128THST 84710001! l"l nseo PONO FCR Sun Jan ·4 1998 1~ 149TH PL SE 10n03054C 2o ~LOSED DRAINAGE C Thu May 21 1998 144" 132NDST 847100054 2' LOSED DITCH FCR Tue Aug 4 1998 1.,.,. 142NDST 1072030Wl 2. '2. CLOSED 'Mll v\QR MonAug 17 1998 1322• 144THAVE SE 84710007' z_ 1, ;.9-0015 \..,LOSED WASttNATE 'MlC Sun Aug 9 1998 1•n 144THAVE SE 847100071 24 CLOSED DRAINAGE R Tue Jan 6 1999 1401 133RD ST 892800018! 2.-s CLO ,_;,; --•CR Mon Mar 1 1999 1410 148TH PL SE 1072010W b1.,, [ 1999-0202 CLOSED DRAINAGE CL J Sun Mar 7 1999 140!M 133RD ST 892800016( 2·1 -09 CLO>tU CONSTR"" '-' Mon Aug 161999 1""" 138TH ST 8471001nf' "/_:_?, -999-o625 CLOSED STNOH20 C Sun Aug 22· 1999 13741 148TH PL SE 10'/203044( ;,-:·' .... 2000-0597 CLOSED OCA C MonAug28m<) 141" 132ND ST" 1~23059211 ... -0783 CLOSED . MNM FCR Mon HQ-, 20-2000 14 6 133RDST 69280001RC ,:.·. DOM FCR Mon Jan~ 2001 1~" 149TH PL SE 107203054( ,( 2001-o697 o:Eij; -DOM C tuo·Nov f:i 2001 13" 148THAVE SE 84710007 ~-_::,· LOSED MMF FCR Wed Dec 12 .2001 1400 149TH PL 107203054( ,··-.\ CLOSED MMF R sun oac 23 2001 . 1400 149TH PL 107203054( :;-:.;) ( 2002-0128 CLOSED " .. Wed Feb 20 ·2002 1401, 133RD ST 8928000150 "'. . ,,,wv Mon Aug 2002 1401 145TH AVE •• 5104200620 :3'? agg;a QIQQ CLOSED WQD WQR Thu Sep 6 2002 1401 145THAVE se 510420052 0 :;e .. CLOSED MNM FCR Tue Feb 4 2003 14.00 149TH PL ae 107203054 0 ,7f'l C 2003-0359 ELOSEO v\QD WQC Sun May 18 2003 14nn 149TH PL se 107203054 014,;; 2003-0359 ., OPEN wao WOE Wed May 21 2003 1400 149TH PL •• 107203054 on, """"·"-CLOSED MNM FCR Tue Nov 18 2003 1492 139TH PL 107203054 01 .....__ ' l . . : , .... ' le Page I oft Torkelson, Cindy •--------,------ From: Rebecca Cushman (rcushman@TriadAssoc.com) sent: Tuesday, August 16, 2005 1:54 PM To: Torkelson, Cindy cc: Kristen Anderson subject: drainage complaints Attachments: consolidated list 8_16_06xls.xts Cindy, How have you been? I have not talked to you In some time. I have another new project that we are doing a downstream analysls on. Enclosed Is the list of complaints off of I- map that I detennlned may be downstream of the site: Would you please pull these complaints and send them to me? Please let me know an estimated time frall)8. Thanks much! Hope your summer Is going well. Sincerely, Rebecca Cushman, PE I Project Engineer (. Triad Aesoclates- 12112 115th Ave NE>> New Address Klrlc:land, WA 98034 P: 425.821.8448 F: 425.ij2l.3481 e: ~sbmonCPtdadassoc,cam w: '(!Y;J.,,_,trtadnssoc.com Con1memoratln9 JO years of land development consulting ,e 08/16/2005 -King County Water and tand Resources <WLR} Division 20 I S Jackson St, Suite 600 Seattle, WA 98104-3855 FAX Fax: -----------Phone: ---------- oate: ij;9µs Number of pages· including cover sheet: -- From: Cindy Torkelson · WLR Stormwpter Services Section Phone:206-296-1900 Fax Number: 206-296-0192 IMPORT ANT LEVEL 1 ANALYSIS NOTE;, We do not send copies of certain complaint types that are not relevant such ~J3CY{, Fl, FIR. FIB and WQA, and we do not send CL and LS types. See key below. Type S 1, S2 and S3 will not be . faxedduetosize~~!n~'/,J.'1 (v\(, ~ t-~ ~ 1• /9 1 · tJdO'-.-. . W b· l'f'l7-lbJ6' ')(16/-ets>'/7,.. ~3-"~9 {}/LLrf{l:tl The following is a list of complaint types received by the Water and Land Resources Stormwater Services Section. Complaint numbers beginning prior to 1990-XXXX have been archived and are no longer in our possession. They can still be retrieved, if necessary, but will take additional time and may not be beneficial to your research due to their age, d.evelopment which bas occurred, etc. If you are Interested in reviewing the actual complaints, ther. can be pulled (time permitting) for your review. Copies can be obtained for $ .15 per page, and $2.00 per page for plans. Km. Type.of lnmti11don C Aodon Request BCW Busbtoss' for Clean Water CCF Ro,ponse to lnqul,y · 'CL Claim BH Bntbn:ement on Hold BR Bntbniemant Review FCC,FCR,FCS Faolllty Complaints Fl SWM Fee Inquiry FIR SWM Fee Review PIH SWM Fee on Hold •LS Lawsuit RR Facility Engineering Review NDA Neighborhood Drainage Assistance WQC Water Quality Complaint WQE Water Quality Enforcement" WQR Water Quality Engineering Review WQA Water Quality Audit WQO Water Quality-Other Sl,S2,SNJ Engineering Studies -~ or.Problem DDM DBS DLB DTA INQ MMA MMF . '. MJ,!O .MMM 'MNM 'MNW .SWF. ·WQB WQD WQI REM NWD ORT Dovtlopment/Construotion ll<alnlgo • Mlsoe!laneous Dialnage -Bnnlol>'Sodlmentatlon Dialnage-LandsUde/BuUI Movement Drainage Technloal Al•l-oe Dialnage -General Inquiry Malntonanoe • Aesthotios Maintenance • Flooding Maintenance • Ooneral Maintenance • Mowing Maintenance -Needs Maintenance Maintenance-Noxious Weeds SWM Pee QuosUons Water Quality-Bost Management Practices Water Quality-Dumping Water Quality-Dllolt Connection SWM Pee .. Remeasurement SWMP ... Orant SWM Fee·New Discount 'Subject to Public Dls_closure r.qulrements I. Receipt ofwrltu:n request for documents 2. Review and approval by Prosecuting Attorneys office -KING COUNTY SURFACE WATER MANAGEMENT DIVISION DRAINAGE INVESTIGATION REPORT -lved by: f./... R,cs!ved from: NAME: flt>/m<jt/l~·f I It/ '10 ADDRESS: /J.050 I '18 7J, !/VE Location of problem, If different: Reported Problem: Page 1: INVESTIGATION REQUEST . _· Type 6! . Date: 2/1 /q5 OK'd by: FUe No. 95-0104 (._ I (Pleaae print plainly for ecannlng). (Day) J :.t, . ~t) ~ME.~ PHONE 27/-7/Z'f )'t'o-76.9/ 5£ City t{E AITON State. __ Zip __ _ I /}/I(. ~lm<jt.ll5f-ls <!..t!>ncerned al,ou-t +he . ,'ncrtt.a.Se. in the. w0v+er +o..ble- nea.r his 10+. The 10+ di'rec+ly S:,u.,th has a Io.Kc. f:ormi:'5 an i +, and +he 'lac.an+ Le+ l?e,hir,d h,m is sa.+ura+.ea'. c.o.r-i we. he.Ip rnR Holn,cau.tst wi'+h h1·s (')e/ahWS .' who.f a.re , Cov.nty ~,.,._/qf-~ons on e+f'ec+in_qQ.r>eighbors l<lo..Hr 'le.v(ll. ""'con+ Le+ • .. //230S '70":, owl'1Ld by llobu-+ ,4,-der.so.J Plat name: Other agencies Involved: . S'w _1_1 _ ~ £ Parcel No./12305 9087 1/4 S T R (Jc, I.e.-. "~ iu,..,1,,, .. .._. Lel:'4 M .... ...,~""' .... ~ -l.. ....1\ z.11.-1< 2·'r, 1-10, 2-~ Lot No: Block No: No Aeld Investigation Needed __ _ 1<ro11S06w Th.Bros: New (27 AZ Old 35£:'( (Dt./) Basin MAY Council Dist 12. Charge No:. ____ _ RESPONSE: Citizen notified on /·IJ·9J-by .IL phone_ letter _ In person .,.-i!:r C'..c,.\.kJ. µ.,. /./c,(.,,,,._d,f ->b l°k~~"'t i..;,._. ~\..ol--._.._...._ doc.,k ·/ i.-,-... ~ =~ul..,{.:c,~ c,..\o.,~f- ~\Ov...J,~ 4 ...,,..1;,0" "'«~I..~ ... ..c...._.:., p .. ...i.:"r "-..;. Sc...,..l 1' ....,..~IJ. c..~ f._. ...... ;+ 'lo.y•-1<.... ~ ... u, O\c...\,'t,.,.~. (.l.«<.~ lll>f:S ~ t'-<-"-'"-•51.J.or -lo~ -i i,...,.,J. c... ~.....J., vi1:1l,,.-\-iu"' tl,....:C} "-'"I' c::he-e,:1 <Z·t.f-14 l.v Ko" l4i1<:ol<t.. Cc,..Ll...l M, ~l ... 2,v,~ /,,"'-(~ ....,,'IL, ~ .... , ... 't.:::i:) -II_--,os.ed' Pv+ ?c:iJt..-Z-f!i ·'rs.,__ · .;i.~ DISPOSITION: Turned to on by OR: No further action recommended because Lead agency has been notified:-----------~------------- -Problem has been corrected. No problem has been Identified. Prior Investigation addresses problem: -. --s .. Ale# _____ _ !~lvate problem -NDAP wlll not consider because: _ Water originates onslte and/or on neighboring parcel · _ Location Is outside. SW. M Se~/)'ea. DATE CLOSED:..!:!._; 15(,U. ·~y: _.:,,[S! .£. Other (Specify): (;,-4.Jvi)~ . . ... . '• • • ~- -.... -· ---···--·---·-·--...... . Complaint #9.S--0104 Holmquist lnveltipted by Doug Dobkins ---· ·-.. -· ..... ._._ -· .. ,,.. {i) Mr:Holmquist ls concerned about the groundwater table around hJa house. Holmquist'• neighbor to the south bas standing water in the pasture/front yard (see picture ). Tho neighbor to the North of Holmquist bas tome ltanding water on hJa driveway area. ThJa neighbor bas a small V-dltch along the north property line of Holmquist that pleb up surface flows and dlaim them to the roadside ditch. Area around the Holmquist property . wa, damp on the day of inveatiptlon. I recommend that I contact Mr. ·11o1.mqu1Jt to inform him ttu,t SWM doesn't have any program, or r.cgulatJons to deal with groundwater. 148111 A VB SB f~- ! . --· .. .--., KING COUNlY SURFACE WATER MANAGEMENT DIVISION DRAINAGE INVESTIGATION REPORT {?-/s) ·Page 1: INVESTIGATION'REQUEST Type C.. Date: 5/2'1 /C/S OK'd by: FUe No. q5. OL/ ?Z. . - (Eve) . RIICelved from: F fYI (Pteaae print plainly.for ~nlng). (Day) NAME:. ___ [c..L.n ... a .... z,..ie ... r_, ....,.D<..!g"-'/l'-'-__ ......;, _____ -'---PHONE 2.7/-'f279 ADDRESS: L 'i ao Z 141../rli. 1/vE 5£. State __ Zip.-"---- Locailon of problem, If different: Reportad Problem: Gces.s,'ve n.,rioPf' Pn:,,.,., s+rec.:t. Refer -ti::, Cl. +f-a.c.hed p tYl c.omplo..i n+. Plat name: Lot No: Block No: Other agencies Involved: ··~ · No Field Investigation ·Needed __ _ . ~_jz._ 23 ..E;_ ParcelNo.152305 9125 1/4 S T R Kroll $10 E. Th.Bros: New <.5.t. J'.3 . Old JS"X Basin L c.R_ ·CouncU Dist /2 Charge No: RESPONSE: Citizen notified ori (>\1-~ 1by ...!::::' phone _ letter _ In person /J9rt -R-H. ~;-..... .., ~.../-i.-, ..1 ...... (er_ ~c .r. DISPOSITION: Turned toM on f ~ J/~Z5by _.::1!_d OR: No further action recommended becaus, _ Lead agency has been notified: .· f aoblem has been correct 0 ed. -~~""Nc-o-::p"'ro7b.:-le:-m.-h~a,...s -::-be:-e-:-n-:-ld::-:e-:-nt""lfl,-ed7 . .'---. -=--=--~=-~..,..l~-\ • ..,..1~-ve-s.,.,tlg-a""tl-on-. a-d,-,d,...re-ss_e_s_p-ro'blem .,lvate problem -NDAP w/11 not consider because: -Water originates onslte and/or on neighboring parcel -. Location Is outside SWM Service Area. X Other (Specify): .P~o//1~ 1e<:.K. t«P.sT,t DATE CLOSED:--1:J--2.J 1.J by: 11:!_ • . Dean, of Invert/get/an: On site 5-26-96. KINGCOUN1Y SURFACE WATER MANAGEMENT DIVISION DRAINAGE INVESTIGATION REPORT . . Page 2: FIELD INVESTIGATION . The Frazier lot la a corner lot below road grade and lower than the lot to the south. Bordering roads are shoulder type without ditches. Run off la to the Frazier's gravelled driveway. Mr l'razler is not looking so much for County assistance as he Is wanting to know what he can do on his own property to keep the water from ponding In the driveway. Photo 11 Looks across 144th at house (left) and garage. 21 Looks north on 144th from front of driveway. 31 looks south In front of lot. 41 View west on 140th with Frazier lot on left. 61 Looks east on 140th, with Frazier lot behind maple bush on right. Sketch: . i -~ : • ~ . F,; .... ~~ ~ , I' ',, .~· . ,~~6~ .C.t.>4~i.t ~ .. Investigated by cf'9<>rt /...t.A4 ,._ \ ,' . ~ .. ~ . '· ' . ·~ , ,,,,:1 ~, .... \ r "" / Date __ :i~-__.c..~ ;..I _-:...9_~ _ }. til • EMORANOUM DATE: Au 7, 1995 TO: file FROM: Gary-Paul Reinke Engineer,. DIR RE: File #95-0472 ( 95-0472BJ CC: Brian Sleight, P.E Brian, Thia is similar to the Riordan file I just sent to you. I haven't filled out a score sheet prior to this but have included one with this. The letter and information has gone out. Thia complaint was a request for technical assistance, not for a fix. I feel we can close this out right away.· I will pass along Tony Ledbettor's phone nwnber to Mr. Frazier. Brian, I have talked to Mr. Frazier concerning his questions on this complaint just this last week. He is satisfied with our assistance at this time. He ia planning some work in his yard first and if this does not stop the flooding in the driveway he will contact Tony Ledbettor about what he might be able to do to stop the water in the right-of-way. I feel we can close this out at this time. Gary =--Gr) KING COUNTY SURFACE WATER MANAGEMENT DIVISION , . ~ DRAINAGE INVESTIGATION REPORT e Page 1: INVESTIGATION REQUEST . . Type C.,, Re~elved.by: _____ ·····--····---.···········-···Date: . c,j~/.:Jp OK'd b'L.------'1r/ .. FIie No .. q?. 07 ~~ RecEJived from: (Please print plainly for seanning). (Day) (Eve) NAME: J)O'Yl~S/Ci I a/f'red. PHONE ------ ADDRESS: / "f O / 0 0 C. /3 't -n, sr. . City ,R-tnfun State. . Zip9&25 Location or_~~oblem, ~ differ_~~ { (JOY-rtfm.S ~ /'f()'!!"' -~e-5 f=--)---:·········-··--------...:- ReportBd Prob!Bm: . · SE£. ~~~y • 8elore__ ,."nve:s-f-~-1-1~ -, .. -----;).~A /_ /' /" ""ll ,1~ • .-.r ,l;;;LIIC,o;:. ruq~ LO"''-, HOTYILi:J .=>arcel :~o. ---------- _._,, .,...,_ 1-.· "-·3/ Kroll i'/0 £., Basin t.C R.. Council Dist . / 2.. C~~h:::a.:_:rg:_::e_:_N:.:_o:::: ===== RESPONSE: Citizen notttied on 92.?~'i!foy phone tener in person 310::k No: Th. Sros: New VJ 5(pH Old :3'5D,:. -' -Cite. c..beJ -~~ S.."4,.f--loT~~~~ DISPOSiT!ON: Turned lo on by OR: No funher ac\ion recommended bee; ----------- • Lead agency has been noHfie. d: Problem has been corrected. No problem has been idenliiied. Private problem . NDAP will not consider bec·euse: Prior inves1igation addresses prob -See File '----- -Waler originates onsite and /or on neighboring parcel _ =Location: outside SWM YileJVice Ar a. _ Other (Specify): DAT::: CLOSED: /0 I I.'::> I 7 5 by: /. /,',-:;. //A ,., -'- ------A f'7 J V.oc II ti/ VJ rr' :r•, J • i .• ·--·-·------··--······· .... ··········--.. · complaint 95-0763 Dembroski, Alfred Investigated by Doug Dobkins on 9-18-95 Mr. Dembroski is requesting to vacate some ROW along 140th avenue SE. The area in question is unopened ROW and not maintained. The only drainage that I could find was at the end of SE 132nd avenue which crossed the 140th Ave. SE ROW from the west to the east. This is a 12"concrete pipe. No other pipes or drainage systems were found in this ROW. Drainage within the plat of Puget Colony Homes drains away from the 140th avenue southeast right-of-way to the southeast. On the westsfde of the 140th Ave se ROW there are 4 large parcels which have no drainage systems affected by this proposed vacation of ROW. Right of Way isn't improved for travel . . see attached drawing (+) -----, KING COUNTY SURFACE WAT'ER MANAGEMENT DIVISION (?) DRAINAGE INVESTIGATION REPORT ;,,.e, • · . Page 1: INVESTIGATION REQUEST . Type __ ~ Received by:..,tw . Date: 1/.:i;./q5 OK'd by: JA. A File No. q5.07ae, .. -~---------------------------------~f--1-~J _______ ~ ~ ______ .:, ________________ _ Received from: (Please print plainly for scanning). (Day)~ /; 30 (Eve) NAME: _ ___.V/...,_r.:.....:A q'-'-'1'-'-·n-'-1,._.'N:...:=....._.-111__;c.;__G_t._!2_CJ_,_Y_· ____ PHONE ;2 E>o -IB4-Z.. / 11 2. 2 a ... vL D . I-. . 4.3Z. 38-'t; --- ADDRESS :. __ __,_7L..:::..;..., _ _:o:____,$:::...:..f;. __ f_2_8_7 _ ,..,__ City /(-{'.n TI/ rJ State Zip qg CJ'::, Location of problem, ff different: :f'o"" M. n-,-"<='-- ---. ·····-···-·········---··-······ .-·--····-···-·----·--···-··· ·-···--·--·-·----···-·····-·········--·----.:.. Reported Problem: --1)1~' vf'Y'lc. el,/ZbY tJ!,'Jl1S p~-1-y ~ £..e,;,:ls if ~ ~ a,nd f./du-lq ~. 1,-u_ ;U.etqhbJrs rt -the. /Jt>V/41 ho.ti lftS~lfet . :i.. .I./" '])r'"-111 pip?~ whib.A cLisdio..J-"{~5 nrld !'-er p~l-tf. -1hU( (f'W)1 tl. d.09 kd?n<./ Mrl Lttk-/11 sht. has ntJ-hcec( "'-nlm If su.bs_ crrn-inq ~m ./he.. pi'p-t... :she. wtTWd ~ -f/,,is ksi.cd -,t> .r~ l,.}},c,,-f 1 ~, tv1d f)t7-s,;;ibl'f so~h?/nq d~f/t c,.,/:)r,,vl---f/,tis-.r::t~ cm-lo AdpHf'~" '11'~ . 11--fp..e ~s toca.kcl µ~ {'h~ pt'QPU.J.4 /lr,.e. fl'} .f'l,e, NOY#l c;.ide.. 1 a,1-13olk,n?_, ,,, mid/I/-{. dt knee t:0PWI t,t10 If-ba.c.i::.. P/-etl..Se tJlo nof . ~d nu,-R.aifeR-, ,S'I-,~ All~·. CM1~UZ. t/ C(/)1,'. ~ed lo l,f(!'v< can Ca..JI ~e!> . the, !El eoy, • sh~ h,.f d<M'~"--f Pl'>'l('. o? -11'14 8n<sA "'-"-'<Ml s-c '1(!\A. c~ .S-e-e i-1-~ , n,ue · 1V.e..iqn be>v IJ..ec~infllf Pu:/~ bf;t,.r,,f Pve/2. ripe· :-'L.:.1 • ,.:., , .,:; . Si; .. lo 2!3 2_ Parcsi :,o /t>.2..3tJS Cft>.35 ; /:. S T R Le: No: 3/ock No: Kroll 805 £ 7h.3ros: New/p '5ft:,:Tj Old 3'5D'f Basin LC!<_ Co0ncil Dist / 2., Charge No: ___ _ ·---·----------------··-··----------' ·--··---- DISPOSITION: Turned to __ on ----by __ _ OR: No further action recommended bee _ Lead agency has been notified:------------------------ '· • Problem ha.s been corrected, _ No problem has been identified. Prior invesligation addresses prol -Pri',a:e problem -NDAP will no/ consider because: Water originates onsite and/or on neighboring parcel _ Location Is outside SWM 53?Jervice Are . DATE cLosEo: 10 1 1~1 9s by ------J/Of"t:.o-6 -See File# ----- _ Other (Specify): KING COUNTY SURFACE WATER MANAGEMENT DIVISION DRAINAGE INVESTIGATION REPORT • Page 1: INVESTIGATION REQUEST Type k.J~C.. . Re~~~ed_ by: .:T.L. ...... ____ ·-·--·---···-·----····Date:. J//2,1 / c;5> --·-· OK'd by:.· ·----------·----···File -~~~_q_{?:_ 9_CJ__CJ1 Received from: (Please print plainly for s.t.annlng), (Day) (Eve) (Ylob,I NAME: Ndsoa, 15/!I <ef C,@?v PHONE .255-B12Cf d 999-3S ADDREss: 0,61 o 1'/zn::1 A111= s£ CitY____,.A'.'-'-'eo"'-'-"---h_"'c,"-t?-'---State-,---Zip qBa.5' Location of l)roblem, ff different: ----·· ------------·-·---------------··-----··-----------------------·------------·-·------·--··-··----········--------- Reported Problem: /l?R. N'el .5'c¥1 s l'JeJ'ghbor , :5 ao.:u s, ·n.5 hi rn of du.m ~ t ~ ev1i ,no.! I.\.) i:t -s +.e.. fleou -+he. drn..in.a..9e.. a.r~, (a.n ......:ie... ~. ou:r arid ~cl<. .(-Or Sl.91'\S of' ctWVIP~~, a.nd ml K .\-o n, s l'ill.3vibc:r : ?lat ;;a:-;;e: Lot No: 'l 31ock No:77~ O;ha:-agencies i.1volved: No Field Investigation Naede:J --- (::il'.1a,!) ;tJ;t~J~ttt:t;:,t::1ttttt:t1:ttttt::,:t::t:T~f.~ ~ .. :0?t~.1?,.b~:.:' ... ~~r:~)7£fJMg~]tD;{et;~p:q.~,f M .. ,filG£~/}t=!::f!,{ttt:.tt;.tf t/::::ttt;;t\:.;t t~f 7 Kroll Sf=. /0 Z3__ 5 ?ari:sl No. / CJ 2 305 q '2 $ / ---Th 3ros New ~5/o'J" I Old 35 DI s T Basin Lo£_ Council Dist / -2... Charge No:_-,----,-----'----------------------------·---,----- RESPONSE: Citizen notffied on ___ by _ phone _ lener · In person DIS,POS!TION: rurned io ___ on -----by ---OR: No further aclion recommended bee. • Lead agency has been notifie. d: 1. Problem has been corrected. & No problem has been Identified. · Prior investigation addresses prob: -See File'---~- _ Private problem -NDAP will nor consider because: Water originates onsHe and/or on neighbor"1ng parcel -Location is outside SWM Service Area. _ Other (Specify): DATE CLOSE;[/ JQ_j_J 72 by: .::J!J rv'r, /,('r,,e, /r,--. ~ ... . . . ... ,. -... • Date: December l , 199.S ' • • Date of Invat11adon: November 30, 12995 FM: Gary-Paul Reinke RE: Evaluation for Complaint # 95-0991 The Nelaom neighbor (McTiea) ii claiming they are dumplng animal waste from their dop and from their do1 ll'OC>mina buADell into a drain ,ystem which eventually empties on the McTice property . The · Nellon, have an eument through the neighboring property directly wt of them. Thi1 neighbor ra.ltel clop and bu two bones OD tho property. I cbecked the Nebom' dralnqe l)'ttem (roof draiDI) and found them to be clear and clear. We walbcl to the out&ll near the McTiea property . Mr. Ncllon'1 l)'ltem endl ln a dry well that bu a rode wall on the aide the water would empty on. Althoup it wu rainin1 bard at the time of the vWt there wu no moving water c:om1q from the drywdl. Tbo pond on the Mc'Ttea' property sitl ln the middle of a low spot, to water would QOUec:t there naturally. Tbe health department wu out roc:ently and did not find any evidence of anlmal waste from the Nellon l)'ltem. Thi, appears to be bad relations between the neighbors. I did not find any violations and closed the complalnt onsite. I asked Mr. Nelson to send a lketch and history of his problem with the Mc'I'iel for tho file. Ho aid be would ICDd it in. f .~ ' ~ 1 I ' ~ r , ~-I {~J Ponded area KING COUNTY SURFACE WATER MANAGEMENT DIVISION DRAINAGE INVESTIGATION REPORT ........ e · Page 1: INVESTIGATION REQUEST . Type (_. Re~-~~~-~:: ~e-0 ___________________ ........... Date: .. __ 2 j 1 _I er (p OK'd by: ~---·-···FIie( No .. g_~ -/ 5 .Z. . Received from:· K j Ck. -,-1,\ 0 YYI. \O. S.6iJ(Please prinl plainly for scanningl. (Day) (Eve) NAME, __ --< ..... 1...!.,.!..N.:.:.A.!.-.!..w"-.""o..._1 .!.-'to~f\J_,· '----------PHONE Z'S,? -D , ci 3:::..-__ ADDRESS: __ ,_z_z_2._-=r._._~·'-t./_g_fh_. _WV_E._<;;"_£_. City. RVJTDN Staie z;/:i'ifD1;1 · .~cation or problem, if differenl: Reportttd Problem: ~e.e:_ # "'t i.J 012.5 N~ i,,boy. ·1s. t:,e(.CL_ hoe... ~IS . . . ~5~1n5 tN IS b.e..J ~ ,e.v-eo/ u-J~I~.- Lo: No: 31ack No: Otha:-e.gencies bvolved: No Field lr.ves;ig2.iion N;.ed;.::1 --- ?arcel No. Kroa 8()$ (::. ,h.3ros: New/p'2{p.J' s T ;; Basin t-CR- -~---------- O:d /p '2.. ~ A,' . 3i./-D'f Counc'.'. D'.s_1 _(p _______ :_:.:_ha~r9:_:e~N.:_:'o:::: ===== . ------· __ a 2 p~..§!J;_ RESPONSE: Cttlzen notified on j,Z61J; by -fC phone _ lener _. in person · 1 I le.ct ~ w ~ i...,~cAJ be. ~'C.11,1 -1o ~J tJ F· '..._ SAt> v~o<J.,.'..._ s~ A~ '2..-?:.'t-'U ... +o ~'l::>e.s. ~ DISPOSITION: Turned 10 on by -----------OR: No furtheraction recomrner,ded be, 1 ~ Lead agency has been no1ified: .-"lJ:_.:_..!)(...;,,_r::5~ _ _,,,,S«:.L:.@':D:::c!.1"'-"'µi/C,.,:..::Z.<;'c,,--,----~--,---,--,--,...-'--- --Problem has been correc1ed, _ No problem has been identiiied. Prior investioa1ion addresses pro -See F"1!c # __ -___ _ _ ?rivare problem· NDA? will not consider because.' _ Water originates onsile and/or on neighboring parcel _ Location i.s outside SW/vi se_rvi'1,,~rj8. Other (Specify): DATE CLOSED: AJ;,;l;J; J',? by: '7f7 ,?/cr-.nrJ . ..-.-.-...-,, - . ··--·"· ;QR . ~- complaint 96-0157 Walton, Tina Investigated by Doug Dobkins on 2-21-96 I met. with Mr. Walton onslte to discuss his concerns with the work being done on the nursery property to the south. According to Mr. Walton the nursery has been clearing land that could be considered a wetland. I walked the back property line of Mr, Walton's property and discovered that he also has done some work in the wetland to install a fence. Mr. Walton cleared In the wetland and disturbed a small stream. I told Mr. Walton that he needs to talk to DDES Grading section about a pennlt to do this work and to stop work in the wetland. I tried to access the property of the nursery to the south but was unsuccessful because they were closed. The nursery appears to have encroached the wetland with Its clearing. I suggest sending this complaint to ODES Grading section for their investigation . NE.10-23-5 f:lll-1 11W. ..:JC.. IU-c~-!) SCALE I" -100' .,,..__s,,: 1324.$6 ~ ~ •· • f •• ~ ~ ·---- - ,.,, .. ~ . t,~ ,,, ' @} . I • 1,-~··t -!J!J ----~---·:\..:d ,I" ,, w I ----1--------------=···--~··=··=''--- ,. .~ ... 8 ,_,,-#,. @) I I ~ I : ~ . __ ...,.,_, ~ I ·1 ·1 : . ~-~w ··· I ~''I ..... -> -----------·----~ -. --'~J~ < ~~ ' .. ! .. -----.-· ~ . t I ) I ., , .,,. ,_., . ,,. ,,, .. , .. "I·. ·."\ .· . ·'.) " ·.~< .. , - KING COUNiY SURFACE WATER MANAGEMENT DIVISION 1/..,r,:J..'\--- DRAINAGE INVESTIGATION REPORT l v) ' tt, . . . (f'rolYI 61.t}fY/ COlfl{ff,,t'( Page 1: INVE.STIGATION REQUEST . . • . Type . ~. ~ivedby: /f'/d71zompsoit1,ne) Date: .. ?./!/&._ OK'd by:·~ .••• File No. 9~-3d_Q Received from: . (Please print plainly for scanning). (Day) (Eve) NAME: 77aa uJa!ton PHONE !J~Of/3 _· · -~ ADDRESS: /JJd 7 -/"&th /J!le /Jt City . ~ State Zip ?.f'J. Location or problem, n different: ------·-··------··--·--·-----··-·----····-·-··----·----···-···-······---- Reported Problem: · . · · · . '· · lle19h6or d,991/79 !o <Yeelr w/':.//7 m.dl,oe, She tnlnks /I /s a f)/lJleelecl (Lie/land. N° rz.-lD . 31ock No: · Otha:-agencies l:ivolved: fJo Field Jnves~igation Needed --- (:~,1 .. l) ~7~·~,~i~tt:~~~~~;tf..[~~~;~r::;;rccrs=·cc~~~F=TEff?Y~~~.9~A!;P,llrr.y,B.P.G.5.:~·t£S!fZ!~l.tt~:0,;:\~.:;:7.ft.t.::;:tr_:;;t~;.~~:;t:~ 8£. /0 ~3 5 ?areal No. /0,2,:iO,i-90cX? . Kroll 80/'fl;,. .. ,.:. S T n Basin &rtf Council Dis_t_;,_;,2 __ c_h_a_rg_e_.N_o_:::.::.::.::.::.==::.-=... ____ • RESPONSE: Citizen notified on ___ by _ phone _ lener in person 7h.Sros: Ne.w ·~:) 7 fl O:d 35-£~ DISPOSITION: Turned to on by OR: No runher action recommended bee ----------- _ Lead agency has been n·otttied: --.,.,.---,-,--.,.--,--..,.,--.,.....,.-----=-,--,----,.-.----,,.,......c---, '· ...• Problem has been corrected, . _ No problem has been identified. Prior investigation.addresses prol _ Private problem· NDAP will not consider because: _ Waler originates onsile and/or on neighboring parcel Location is outside SWM Service Area. DATE CLOSED: ~Ill! r;~ by:~ See File# ____ _ Other (Specif)'): <:. Q;:' C//. -"'1 I ~7 ---··" KING COUNTY SURFACE WATER MANAGEMENT DIVISION J)C}) DRAINAGE INVESTIGATION REPORT (io) ;-- • Page 1: INVESTIGATION'REQUEST Type--"V __ . rtecelved by: Date:. 7/22/q4, OK'd by: '[) ~ FIie No. <?6'-/L/0/ . :Received from: (Plea$<! print plainly for scanning). (Day) 7~ 3!'6 (Eve) NAME\kM:s /%,111ft@"?!5!' ,.,:?i,.,,ii,~ Hor,:ST PHONE ,'<77-05",3/ __ _ ADDRESS: ~o I ,II.IE<!# 7!21tef.,.., W/1: City State Zip __ Location of J)foblem, ff different: 1/$01 /IJE" l.j,ff.... S£ /J./;znd <T I L'r-l2""ri,, . ~ ~ ~~ o ST ------8-'-as_;ln:::t.=<;g:::· =--Cou~~-t _I Z.--~~arg:_N_o: ______ ---------------·------ .RESPONSE: Citizen notified on~--by _ phone _ letter _ In person DISPOSITION: Turned to on by ---------OR: No further action recommended beec _ L£>ad agency has been notified: ----,-~----,-,-----~--,---,------,-.,----, ·, .• Problem has been corrected. _ No problem has been identllied. Prior Investigation addresses probi -Sea File# ------Private problem -NDAP will not consider because: _ Water originates onslte and/or on neighboring parcel . _ Location Is outside SWM Serv~~ ~'/a. DATE CLOSED: _3_; ? ;__j_f, by: ""'frJ ---tft.tferP Other (Specify): • • TO: Jl'ROM1 DATB1 ICING COUNTY SUU'ACB WATBR MANAGEMENT INTDNAL MBMORANDUM Don Althauser Larry Gettle August 7, 1996 SUBJBC'l'z James Montgomery -Amonte Florist 96-1401 (io) ,.-4801 RB 4th (142nd Avenue southeast and Southeast 128th street) Per your request Local Drainage services Unit inspected the drainage channel from the pipe outlet at southeast 128th street to the south Lobe of Wetland 150. we also checked to determine if there are easements or agreements that require the county to maintain this off R/W channel. our investigation revealed the channel south of southeast 128th Street has been impacted with sediment, vegetation and debris. The channel invert appears to be higher than the culvert outlet. We detarained at least 40 feet of channel dredging would be required to obtain positive.flow. l'Urther downstream a significant amount of brush and trees are restricting the channel and causing additional sediment building; A check for easements at the Record Center and Property services Division did not identify any easements or agreements giving Ring County maintenance responsibility for this channel. Because we do not have maintenance responsibility this maintenance should be considered as part of the CIP project. Thanks for the opportunity have any questions or need free'to call me at 6-8326, to respond to your request. If you additional information please feel • - KING COUNTY SURFACE WATER MANAGEMENT DIVISION {_11) DRAINAGE INYESTIGATION REPORT Page 1: INVESTIGATION'REQUEST Type (? R-ed by: L.~ Data: /~11-z/ft OK'd by:. -111/ FIia No. lt'-~1""""n __ /_ ReaeJv«/ from: tM·"" t::,.,.u::i.A~ 1c l-l'~aae plfnt plalnly for acannlngJ. · (Day) (Eve) IIAME: ,Mt!N ; ~, ~'1Zl4:B,tC-H PHONe:¥,s4-:(700_-:---- \DDRess: . I 2.. 2 2 7 l 4 8 rH d:J R S" e c11y Rew7"o N State t,J It-Zip 'z: fos .ocatlon of problem, If different ,,,,,orted Prob/1111: i>M-c \S U-1-<.., u c fi...,_ W, ~ G"'L O c;r72 '-Y ?h?c-?..-T'!. 77>"e"Y /U~?:"V) ; 5' at-ilk?~ 5 ffi= /€'~ 8vl"" . N e'FP ;;_,, er k-#,J/ u-L ks: r I f'"77"r/c , fo 11~L ti.;-_.!i;.....,...a=:-f>,.e41"f.fit:cr /~~v €~. a°o'f"'H ~~f._.....,,_...-, ..,~ ~.JJ\-c~-r Tu fl,4r &,-/(,,9 ,,vA (,...-r;;., 9<,...Jrlt ~ ~ /V-'ll.S.,,;:n. "( /Voe_ 7"/../ ,A _5irU-!..ci 4-r, . r/,,hr" ~v'le "/' /µ-;s d',f.•JOl-7". _,.,,. nt-t. tf:,L., .A £v-4";::, ........... p [;>1,<1::7:r,r<r::, .PAAr,,JJr<:,F ClrJ"TV 77h:='/,e ·,t1 _,} =-1t-ru · 1/h,-&-r ro rr,;,,r ;<{u.£.rH ~ ;/,:..s-a ~,r".1.-E"re't> /:eQr ~ r · /J _j _ ~ 41/r~ ;--. ;'#.:F1,e Co-r t:s 11/,w r/1,:C tccc.errPt:=3 ,,,....'--'T7'A=. . • TeH ·U-Lt-[M-.1£ !l<1oe. n; /..uilc3"'?7uf7o..v ,0 U:-C,,v Ou ... lhs ~~ '7irrc--:e. -// Al let-name: ,,,r-../ Lot No: Biock No: lher agencies Involved: No.Fleld Investigation Needed __ _ Parcel No .. _ _.;. ______ _ Kroll __ _ Th.Bros: -!iN.,.ew.._ ___ _ Old Basin Counca Dist Charge No:. ___ _ SPONSE: Citizen notlfled, on j/.::S::i.L by ..JtZ.. phone _ latter _ In person ~I~ c.o~l~~ -+o c.J~-e. ..C: k 1o ""vt:j:.S. 6-cw. 11'\ / 1 .... t...-..,~ -:# t E1,1Q,~ -,,/-; . ~ u:v,... L.-rlerfc.. IPOSITION: Turned to 'on · by OR: No further action recommended because: : Lead agency has been notified: D Dt;,;--S 5'; li[ ~@-eJ /Jtlt;,?;--,.,,;7 ~ t// c p'2 -1• blam has been corrected. _ No problem sheen Identified. _ Prior Investigation addresses problem: I Set Flit# · · _., te problem • NDAP will not consider because: _ Water originates onslte and/or on neighboring parcel -...;. Location Is outside SWM Serv'::,f :Jr. _ Other (Specify): ~TE CLOSED: _/J__j 2LJ J.!:... by:~ K1 FD .-,r) 'v ~ &5 King County t)epartmellt of Natural R.ceourcc, . Surfaco Wat« Manapment DRAINAGE INVESTIGATION REPORT · PIELD INVUl'IGATION PILB NO 96-1771 NAME: JOHN KAUZLAJUCH ADDRl!S8 : 12227 1'"111 A VB SB PHONE 45 .. 9700 MAINTENANCE 4 llfOMAS PAOB627n DATE IM5·96 INTllAL8 DCD (l 1) DET~ OP INVESTIGATION: Dave Kauzlarich ii the 10n of th~ property ownen. Dave i, coacenaed that the property bu been dama1ed with aD the activity at the nunery to the south and the nelpbon to the aorth of them. A wetland now ui,t,.on the bacblde of the property. Dave feels with aD the activity of the · other propeda they. are now the dumpln1 around for all the 1urf'ace water ,Wows. I walked the puture on Uae backside of tile property and found the wetland Dave wu tallda1 about but could not Rad a dired flow patb oft)ae water from the nunel')' or the north property. It appean the water ponds on the Kaazlarlch'• property than ftow1 to the north. I wW check the 1en1ldve area, maps to find out what b located on the backside of tbb propety • . SKETCH: • • .................................................................................................................... 1········································· NURSERY 148fflAVBSB ~:r:1n:m .:.:::::: KIN~ SURFACE WATER MANAGiMEtfT DIVISION DR.AINAGE ~TIGATION REPORT Page· 1: INVESTIGATION"REQUE~T IOEllvecl by: ~ Date: {--;;?-CJ 7 01<:d by. FIie No. 9 7. 5 5 leoe/ved ;,.::, LAmE, .· (Please pri~ plainly for scanning). ·. (Day) (IM) I.ME: .£~ '~ . .. · PHONE~S-S-57'.~---- >DRESS: ){//Q s s ~-Zs~ rel City lknzlkl I State ilp?SJ I ~ >eai!on of problem, If different ,ported Problem: . , 1rv->.~ ~ ·thf tJ~ ~ ~{Nm fiM aU -~ ~ (5)/0~ . './VIA·. wnd . . (~-~~ 0~~~~-·. ·. I~-- llt name: fL'J .af L-o/D-1.., {(c,,ne_:5 ... --~ Lot No: / Block No: iher agencies Involved: No _Field Investigation Needed --- 11.£....LL...!l......£. Parcel No£'f2..~oo-oz.10 1/4 S T R Basin LC fl--CouncD Dist~ Charge No: Kron JroE Th.Bros: New 6 5 k? J 2 . Old 350t, 'SPONSE: Citizen notffled on ___ by _ phone _ letter _ In parson .. ( IJ oJt,d'J . .. . . SPOSff/ON: Turned ~o f-· on f'/J · <z 7 . by~ OR: No further action recommended becausE _ Lead agency has been notified: --,..,---,-,---,--,--.,..,.--,,.,,.--,------=-,,----,--,,---,,------,,-,---- 1 ___ ... blem has been corrected. _ No problem has been ldentlfled. _ Prior Investigation addresses problem Su FIie # , _ le problem· NDAP wl/1 not consider because: _ Water originates onslte and/or on neighboring parcel . Location ,.Is outside SWM Service Area · _. Other (Specify}: IATECLOSED:~by:#-././~~ ,-},-~) i. ..... ·-·-··-········· ------------ Date: January 13, 1997 Date of Inve,tigatlon: January 11, 1997 FM: Gary-Paul Reinke RE: Evaluadon for Complaint # 97-0056 Ben Lamb 14105 SB 133"' Street Renton, WA 98059 255-54S9 . --···-·······-.. .. ---·-·- Mr. Lamb lives In the Puget Colony Homes project. The neighborhood had significant flooding during the Xmas storm of 1997. They experienced soveral feet of standing water around their homes. nrls area has been under a study by Wendy Kara and Don Althauser. They do have a project that ls ready to be started but are held up by one or two property owners. A public meeting ls schedule for this coming Febrwuy to discuss the solution. This part of the complaint should be closed to that project. Downstream from Mr. Lamb Is another series of pipes which might be plugged or collapsed. I suggest we do a Quick Fix on this section to determine the actual condition of the pipe. Please see the attached diagram. '-w Q E:'O e . Received by: KING COUNTY SURFACE WATER MANAGEMENT DIVISION DRAINAGE INVESTIGATION REPORT {1r:;) ~ Type FC,t FlleNo. t\1-j t / ~ . Page 1: INVESTIGATION'REQUEST Date: .~ J 9 7 OK'd by: -RIH:e/vsd from: (Please p~nt plalnly tor ocannlng), . (Pay) (Eve) PHONE J55-8Ci3 NAME: . ~J/h~Llfl1f · · {/ . . ADDRESS: . l,18 :Y'.1: c)& · !3/A27 /?I City y[}.dfliitt) State __ Zip fJt2 53 Looatlon of problem, If different: YI~ udf&N~ -4, fa~lM/ u a, t!..LJ . .,;u,1d, <d ~ ~ <f' db '2/JjOMe./ pi72? weef <Y7J S'E /.3.14UV Sr- Plat-name: Lot No: Block No: Other agencies Involved: No .Field Investigation Needed ---(lnttJal•) mm:r,wum1,,·~~H!U'\filflMEMM@~WWR·M:aw~Mttt•:!i .:J/w :_!2_ .n_ __,2_ Parcel No. 101...7;,06 -Cj 1...1.? Kroll fl(} W Th.Bros: New 094,f/~ 1µs r R · ad~~ Basln.lC/f CouncU DlstL Charge No: ___ _ )ISPOSIT!ON: Turned to · on · by . OR: No further action recommended becaus j} Lead agency has been notified: fo ~ r11twv?:d?'/"&w&;::-flr('EC..!Jf L-d P,S ., eoblem has been corrected. No problem has been lden@ed. _ Prior Investigation addresses problen Sae FIie l ____ _ rivate problem -NDAP will not consider because: Water originates onstte and/or on neighboring parcel = Location Is outside SWM Se.:'.1~· _ Other (Specify): DATE CLOSED:_£; /cf/ !l2. by: ~V (/( rf) rcJ IR.i) _5 INVIIBl'IGATION DATIII 4-111-"7 ADDllES81 lJae 8B uan Bl'. LOCATION, crrYRBNTON PHO~ REPORT DATE, 4-11•"7 MAINTENANCE DIVISION, 4 (15) CHAIN LINK FENCED DAMAGED DURJNG LAST STORM ~VENT. NEED TO DO A ASSESSMENT OP TIIB FACILITY ON MIS TO REPLACE nm CHAIN LINK PENCB. WILL DO RESEARCH TO FIND our WHAT POND nns IS AND WHETHER WE MAINI'AIN TIIlS POND. COUID BE AN OLD OPP OR REGIONAL FACILITY. FURTHER RESEARCH NEEDED. I talked to Lany·Cletllo about the maintenance of the pond In question and found out that Ii ls maintained by roads as part of the SE 12a• SU'ect drainage. Sent cmall to Jon cassldy about the problem. Attaclied copy of o-mall to Jon casstdy. File closed to Roads. '*1z,. DRAH;AGE;INvESTIGATION REPORT 1 10 /l 7l . ! ~ r · . Page I: INVESTIOATION REQUEST L Type t , = PROBLEM:(~d...M?$ .. r, !f (Vtf'~ -,--I . l, . •.:..,. AE1vEosv~ il/G,wv+c Date; 9--~'132 OK'dby: . \"llll!eceived from: _ / (Day) ( } i,/ 'v6 (Eve) ._( ----1l NAME: lei~ Ar-~ PHONE :-/(t,12100 tJ .:US ;c;yy ti /~Riss: S~. /33,R~ st City l<.v-,in, State b.,l;ft Zip 1 '905j FILENo.01-/ :;153 Location of problem, if different: initials) Parcel NoJll-z.tCO-oluiD Th.Bros: New Lt fil J-1 Z, Old 35~· Basin I (.f;_ Council District ·fl:::_ Charge No. ______ _;__ --··· .. ·····-·······················································-···························-· .. · .. ·--·--·-··---................................................................................... ____ ... .,, ___ ,,, ................................ . RESPONSE: Citizen notified on -----by: _ phone _.:._ letter __ in person DISPOSITION: Turned to K on /{J; / I 'z,2 by-KaR: No further action recommended because: _ Lead agency has been notified: _____________________ _ _ Problem has been corrected. _ No problem has been identified .. -Prior investigation addresses problem: SEEFILE.# --- • Private prnblem -NDAP will not consider because: \ Water originates onsite and/or on neighboring parcel. __ Location is outside WLRD Service Area. __ Other (Specify): DATE cLosEo: ~ 1 tc1 <tv By: #--er,..~ 11 /Jk r £) i --· e Evans Glenn From: Sant: To: Cc: Subject: Althauser, Don Tuesday, October 07, 1997 4:54 PM Welch, Maureen ONell, Mike; Kara, Wendy; Evans, Glenn; Adler, Paul; Parsons, Randall Phone Complaint from Lola Archer -status Ms Archer complained about activity on our Capital Improvement Project-_Puget Colony Homes Floodlng Improvements to your office a second Ume. · . We called her to understand her Issues about unfenced area of the project and nuisance flooding potenllal In her rear yard area. People were accessing her property at Umes when the contractor's equipment did not block entry and caused nuisance on the unimproved right of way adjacent to her home. Paul Adler supervised a Conservation Corp crew to Install a permanent fenoe at the perimeter of the work area at several sites to secure the private properties. His program allowed for quick response and an Inexpensive solution to the complaint. Ms Archer Is concerned about surface water drainage changes that may occur due to our construction. We ·have flied her complaint with Local Drainage Services Unit and requested support from Glen Evans In the Neighborhood Drainage Assistance Program to provide a drainage solution for her lot and an adjoining lot. This program Is capable of providing small drainage project construction this fall. II Is apparent from field Inspection that they need a drainage line to convey surface flows from an adjoining pasture-through their lots to the street drainage system. , Our field Inspector has had many contacts with Ms. Archer and taken care to protect her property, but Ms Archer · • felt we were not addressing her Issues adequately and quickly enough. I have also encouraged her to contact me In the future If she feels her concerns are not being addressed. From discussion with her and neighbors I think these staff actions wlll fully address her concerns. \. Page 1 \ • • -····-----~~ --·········----. ···--·-···-... ··--·····-··- NBI<111BORHOOI> DRAINAQB .11,SSISTJUtCB PROQRAII COKPLAIMAIIT BVALUATION IIBICO DATE: December 2, 1997 TO: FILE FROM: JEFF JACOBSON RB: ENGINEERING EVALUATION FOR COMPLAINT NO. 97-1378; Archer COMPLAINT CHRONOLOGY: ORIGINAL: FIELD INV: FIELD BVAL: OLD FILES: BAC1COROUND1 9/24/97 11/21/97 11/21/97 N/A Don Althauser with the CIP group is heading a conveyanc·e project in the area of SB 133rd Street and 140th Avenue SB. The project will convey the area's surface water from a nearby wetland along an undeveloped portion of King County right-of-way, 140th Avenue SE. As part of the project the County cleared the flora found in the right-of- way including a few large trees. The·conveyance line is expected to be constructed sometime in the late spring of 1998. Two residents claim to have been affected by the clearing practice, the aforementioned Ms. Archer and her neighbor Lilly Bischai/ Rene Treadwell. Ms. Archer claims surface water enters the· back of her property resulting in standing water problems. According to Ms. Archer ·the recent clearing has exasperated the extent of the standing water problems. In the past Archer's neighbors, Bischai/Treadwell, have had greater standing water problems. They have a sump pump in the basement ot their house. The pump outlets to the drainage system fronting their property along SE 133rd Street. · Ms. Archer would like to see a conveyance system installed along the property boundary shared with her neighbor Bischai/Treadwell with the te.rmination poipt located in the backyard. The Bischai/'!:'readwells have. recently expressed their desires to have a drainage system installed after fir11t taking a "wait and see" approach. The rainstorm of December 17, 19th of 1997 changed their minds. Both residents firmly believe the recent clearing has exasperated their drainage problems: rINI>INGS1 Since the problem meets all of the NDAP project criteria listed below, it qualifies for and has been investigated under the NDAP program. • The problem site is within the SWM service area and does not invol.ve a King County (KC) code violation. 1 • • The problem site shows evidence .of or reported localized flooding, erosion and/or sedimentation within the off road drainage system on private residential and/or commercial property due to later upstream development. • The problem is caused by surface water from more than one adjoining property. ·soILS: According to the KC soils map, the site is located in the following soil association: ALDBRWOOD ASSOCIATION: Moderately well drained undulating to hilly soils that have dense, very slowly permeable glacial till at a depth of 20 to·40 inches; on uplands and terraces. OPTIONS AND DISCUSSION, 1. Construct a conveyance line along the two complainant's properties with one termination point in the backyard of the Archer property and the other in the open ditch found on the Bischai property. The conveyance l.ine would outlet in the sump/storm drain system found fronting the complainants' property. 2. Do nothing. The CIP project may provide some relief to the problem. The project is scheduled to be constructed in the spring/summer of 1998. The trench for the project may intercept problematic surface water and re-direct it to the south and away from the complainants' properties. DIPACT SCORB • 40 PROPOSBD SOLOTION1 The NOA Program will incur the material costs for the proposed project discussed under option number. 1. The CIP group will provide the funding for the remainder of the project. PRIORITY SCORB • 3.1 2 ____ ·-_ , , ..... ....,,u,~-~A.<' ...,n.,,,u .a:,o,LOVUl'\.\....I!..~ .J.JfVUSlUN DRAINAGE INvESTIGATION REPORT (iBJ / r ~ Pag~: IWSTIGATIONREQUEST PROBLEM: tht« _c:/:~.S~r: 4r"" o:;:!s[ ~ Type apc!YED BY: Pft?t ~ Pc Date: ?,2<LQ ~eceived from: OK'd by: FILE No.· 0,;-/ '1:)£!{) / , / (Day) ( ) ?--ii/(! ffi't..£Aij{€Ne' fa:«kh PHONE----- ADDRESS: /'-/.61.') .. ~ /3,3 fiel:, $(: City Kedr,c State (Eve) ~C ---..1.l Location of problem, if different: Reported Problem: CALL FIRST D (Would Like To Be Present) 5'.o~-JB$~ript,~ {;,-4;./,,__ /)_ r-~ Lot No: Block No: Other agencies involved: No field investigation required. __ (initials) • ··· :, To nt'coliflitJ~·llv:'coMi>UJNT PRoG!v.M in'.:t · · ~,:;,~'.,Y.\'ii,1;'.;51'<1, ·,!!.t'it·.>1·~.11:~~".:, . ,• .-......... ····~-'!'(f~, ·-· , .. ,.,., ....... " .... , .. , ' .. , ·--... :"'-'•' ."-,:>t., ~~~~~i.·~~.f{~~.t .. -J:Q__ 222._ ..£L . YI S T R Parcel No, ltA.ZgCJD-O/](\Kroll 'bl() 5Tu.Bros: New&f:>& H2- . Old 3'5D5 Basin LC!: Council District·~ Charge No. _______ _ --·-··-···· .. ··•·••·••······················ .. ·········------............................................... -... ·--··---·· .. ---.. ---.. ---····--······---·----··--···-·---· ................ -...................... -....................................... -............ . RBsPONSE: Citizen notified on ------by: __ phone __;__ letter _ in person DISPOSITION: Turned to on _ _,_/ --'-/ __ by __ OR: No further action recommended because: __ Lead agency has been notified: _____ __,----------,--------- -Problem has been corrected. _ No problem has been identified .. --Prior inves~ation addresses problem: · SEE FILE.# ':f_ 7-( f 7 f .. ,..Private problem -NDAP will not consider because: '. Water originates onsite and/or on neighboring parcel. Location is outside WLRD Se~. __ Other (Specify): DATE CLOSED: /0; / 177 By: _eJ/ 5t-~-9'7-/J7? • !. TO, ll'ROM1 DATE, StJBJl!l CT I KING COUNTY WATER & LAND RBSOURCBS INTERNAL MBMORANDTJM Glenn Evans Larry Gettle October 1, 1997 Archer, Lola 97-1378 14004 Southeast 133rd Street Reference, 97-1380 Treadwell These complaints were referred to us by Don Althauser. These sites are adjacent to .and part of the Puget Colony Homes BPCIP Project. The problem here is water ponding in the backyards of these two parcels. These are being referred to you per your discussion with Don. 1J~E1NvESTIGATIONREPORT ,.w D~ Page I: INVESTIOATION REQUEST (j.-o) Type ([£: PROBLEM: tU'Y1Cl.. . •. CEJVED BY: ld-cJ eceived from: . Date: 1{':Y OK'd by:))~FILENO. Cf!-{):)07 (Day) c ±z..S"l PHONE 22.J.g -U 1~ (Eve) ._( ----.11 NAME: {).:j~ G«-1 #L · ADDRESS: l:t}Q-, 119-tt, ::pj Location of problem, if different: City ]e,'l-hnt._.. State. __ Zip q@S1 Reported Problem: CALL FIRST D (Would Like To Be Present) Lot No: TP-/4 Block No: Other agencies involved: No field investigation required __ (inillals) s T R Parcel No. lOJ1Q!-Q51t) Council District .Jl:_ 1<ro11'i511 w 1/S'l 14-,3 ~ eb Th.Bros: Ne~!;ae :f 3 01 '?,'5£)(, Basini»:: Charge No. _______ _ RESPONSE: Citizen notified on I-S: · ? r by: _ phone __:_ letter _r_ in person f!;~ l'fo Ice dL. J •/ ..., ., W>7, 'H.. ~'a"'-. c.lr,s,~ t..,,'ft.._ w/1# l~o, ! :Pb, DISPOSITION: Turned to on / by __ OR: No further action recommended because: _j:s_ Lead agency has been notified: ,fQ ~ SI tfltuvr %--z-[/1k Q/' .5 _ Problem has been corrected. _ No problem has been identified. __ Prior investigation addresses problem: SEE FILE# ---- prj vate problem -NDAP will riot consider because: --Water originates onsite and/or on neighboring parcel. Location is outside WLRD SerjsjpeJ-_Other (Specify): DATE CLOSED: f 1 "J--f I if By: _£_""v . WI 3tJ£__s ) ) MW ) .. ) ) f' I 1.e fr:,::::~~ Th~, am••• mAs Typ11 P~d BRIAR HILLS I \ Street Address1 14005 -149TH PL SE Dire(:tions1 FROM SE 128TH ST, TAKE 144TH AVE SE 142ND ST. TURN LEFT ONTO 149TH PL SE •. THE 14005. Chected on 1/15/96 by DOUB DOBKINS~ Sp1clal Equipaent1 SVN Not11/Co11ent11 Radio II 555 Charge to Project 11 067~75 Fisheriiss Re,1lr Inlet pipe to CS/CBI and baclflll with\ to 6 Inch spills to 1nchor pipe, If you have any questions concerning the 1nchorlng of the pipe please contact Doug Doblins at 296·1975 or on C1ll 660-6352. Ro1ds Div, Notes: Tasl Unit Code Type I Date Actual Nahrill N1terial Units Vorl Requested Co1pleted Units !nit Placed £1c1vated V02 E1.hc. I IRe1ove sedi1ent in control structure CSCB/1, (reflOI ' VIS Eich 2 IRe1ove sedi1ent lro1 the following c1tch b1sln(sl ind dispose In 1ccordance with applic1ble Regulations, CB12 CB13 ( nf2101 V2~ E1,fac. 1 Perlou the ·1ollowing 11lnt_en1nce/npalr worl1 repair Inlet pipe to CS/CBI, see notes in the co11ant section •• lrel6601 Work A_uthor i zed1 ______________ _ Work Completed •--------------~ Progr11 Yerslon1 February 22 1 1993 Date, ____ _ Date1 ____ _ .. -------------------------- KING COUNTY WATER A.,IB l!!AND REsOURCES DMSION J>6D · DRAINAGE INvESTIGATION REPORT fz._ \; Page I: INYESTIGA TION REQUEST ( ' Type c_ I BLkM: t:iAJ l'\escm • ~EIVED BY: b(U Date: Ci/ Z. 2-OK'd by: l?W:r1LE No. q 8-03LRD Received from: NAME: l-Q.Kol M0(v ADDRESS: \t\-464 % I~ 51f Location of problem, if different: · (Day) (4'2..'5) (Eve) jµ..,, ) PHONE 2.01 -L,,/Q'.) (&xr ~ 2-f Le -] 1 J{, City'.\0~ State Zipq f1:r.:l7 Reported Problem: CALL FIRST D (Would Lik~ To Be P~esent) Lot No: '7 Block No: Plat name: &lo..,c-k, /....J!)c,_,-,,._ 5-~ Other agencies involved: I . 2.-':> No field investigation required. __ (lnillals) ·TOBE COMPLETED BY COMPLAINT PI\OGRAM STAFF ..t:.J..a IS '23 S Y-1 -S-~ -R-Parcel No. 0~ 4-, 10 -00 ~ Kroll ?10 6 Th.Bros: New l.,~ -'.T'J,., . Old ·3'5D '? Basiµ.e_ Council District ~ Charge No .. _-------- RESPONSE: Citizen notified on 5 -'2. 'f-9 8 by: V phone. _ letter __ in· person '7 e.n + +o D DE .S -G./ y-,,_ c:l: ""j . C..., .-,ro.. c. t : /c'!~;,; ol ~ Sc,.n i; I? . "1 <> p ex.,,.,: f ~ + o I.A..., d .f o Y' ~ v-o.. d.:,.., :, ~or k; poss : b le. ; evi,P a.'--+ f D rYH!.j e_ '(' f' V" 0 f' ex' "t'j , DISPOSITION: Turned to __ on / / by __ OR: .No further action recommended because: ....2C Lead agency has been notified: /17?;:,-~4:::2::4:t"kst:c-:::z::: ~0'.G:a::S .i>pcS _ Problem has been corr~cted. _ No problem has been identified. _. _ Prior investigation addresses problem: • SEEFILEN ~ Private problem -NDAP will not consider because: __ Water originates onsite and/or on neighboring parcel. Location is outside WLRD Se~e~ __ Other (Specify): DATE CLOSED 7 p,?1' 1.9.r' By: _,{f_'r:J' //Vrb.P~ •• -........... _·--·-·····-·-··· -· Cornp~t 98-0360 Meyer Investigated by Robert Manns OD 5-27-98 I found that a large area bad bcco cleared, approximately 1/2 acre . An existing depression with water is located at the south side of Tax parcel 0847J0-004S , next to Meyer's property . Some dirt and debris bas been pushed into the water from the grading work being done on parcel -0045 . I checbd Sierra and found no permit, for the grading work. Clarence Weyer is the property owner of this parcel. His house is on the adjoining parcel; house# 14602. Meyer's property is not impacted by the work, because of the higher elevation above the grading. Ondcdarca Barn '------EJ 12" cone . Meyer 14454 12" cone. SB. 132nd ST. 12" cone . Weyer 14602 146th A VE . SE . NTS I -le--KING COUNTY WATER_ AND LAND RESOURCES DMSIO!'y: <7 1 - DRAINAGE INvESTIGATION REPORT (_ z~_; -~ ,; ·. Jagel: INVESTIGATIONREQUEST Type ;:~ .LEM: r~~· . r!!;1vEo BY: ~ J . • · Date: R}f98 OK'd by: FILE No. PJ' ~ Jf)Q Received from:~ an tJe!(.tU.J~.J (Day) ~< _ __,) NAME: __ ..,UJ.""!?1,_.,....'{)11_....._.· ...,#17d.l'--'.Jt..J-,11('-"'-"""Jk=--• ----PHONE ------ (Eve) ,.__/ ------t) ADDRESS: _______________ City ______ State __ Zip __ _ Location of problem, if different: / If 9 y 5 ()b / lj ef/14 S/ I ~1 ' ,637 · / ,0()()7 !>lat name: Block No: )!her agencies involved; No field investigation required __ (Initials) -22. _£ .. ; T R Parcel No. / 0 7J0,3fJ,-J?/Q Kroll f/ / ft) Th.Bros: New t:,57,Ji}° .• ·. . . . :, .. -: ...... · . I ·TOBE COMPLETED BY COMPLAJNT PROGRAM STAFF . · Old Basin·@ Council District -12__ 6$,;rY .350(pE{p Charge No. _______ _ IESPONSE: Citizen notified on -----by: __ phone __ letter __ in person 11sros1noN: Turned to __ on -~/'--__,_/ __ by __ OR: No further action recommended because: _ Lead agency has been notifi~.;.:.,.....---------------------- -Problem has been corr;cted. No problem has been identified. __ Prior investigation addresses problem: • SEEFILEN ~ ivate problem -NDAP will not consider because: __ Water originates onsite and/or on neighboring parcel. Location is outside WLRD S~a. __ Other (Specify): ATECLOSED: .f; /J;f{ By: I /17/.4 ,,,/J I I\ . ~ ,. ,.:..... Complaint 98-0520 Anonymous Investigated by Robert Manns on 8-6-98 . I checked D90515 and found no problems. This facility has no ditch. In the pond facility D90669 there is a rock lined ditch that I found to have no problems. This pond had work done on it last year. It's clean and functioning. No problem was identified. No photo's were taken. DRAINAGE lNVESTIGATION REPORT ·. . . . J Page I: INVESTIOA TION REQUEST ~6-4 PRoaLEM: M&? uli::kr: m ~~ · . · . R~lv\ Type~· -'''.EDBY: '2H' {1,/~m Date: <{-/0-'tr OK'dby: 17\<JA-FrLENo. ?7f 531 ~ce1ved from: · (Day) ,{25 (Eve) I ) NAME: &artr.? "t::: Ca,oe-y Ct2(: PHONE c:£35-;z<tc/3 . ._____, ADDRESS: (c ?~,;;x V, -/ qlµA ffiS-£&c'ity tl:tvzm--o State@ Zip ff{S) Location of problem, if different: Reported Problem: . CALL FIRST D (Would Like To B_e P~esent)~~ ~'J:,UTEl"n.U· ~~/?'2,s. 4-~h~2::J ~c.P· ~.~ ~/t/Yf.S ~ }W,t_, ~ ~·f-Q_ ~-· . ~ad ~~~~t~~r;,44~ ...;:ntdt< . ~/ -~ 61 ,d,-nL. ~uf if, oAm kuY ~ ~ . t:J-(,t/J,ul/l i:1 £~ /}u,. . I /J ~ ' ::.:.!J!o 10031 -(!)t11µ~ la, ame:~So&cZt. . ~ c.<44 Lot No:// BlockNo: lther agencies invol\'ed: . · ,,, WtW No field investigation required __ (initials) TO BE C0~1PL£T£D BY COMPLAINT PROGRAM STAFF ~ . ($'. .d,3__ _!i_ . Y.. S .T R Parcel No. CJ8'/'!(0aJ '(j Basin· LC/f Council District ..iii._ Kroll fl!(}[; Th.Bros: New [;;${,. J,Z_,, Old rJ505 Charge No .. _______ _ ~PONSE: Citizen notified on -----by: __ phone __ letter __ m·person SPOSITION: Turned 1rAJ~~n r I / r / f ( by~R: No further actio~ recomm_ended because: · tified: _____________________ _ (L_~~~~~~~;;> __ No problem has been identified. _ Prior investigation addresses problem: . SEE FILE# --- .aivate problem -NDAP will not consider because:. ·• Water originates onsite and/or on neighboring parcel. Location is outside WLRD Servi~.cee eaa.:.. _Other (Specify): ,TE CLOSED: /2 12010{ By:0=---=~=R( /~t01{b,e~b • • ' ---···-----~---·····----· --·------~---···--·· Date: March 26, 2001 Date of Investigation: December 14'", 2000 FM: Gary-Paul Reinke RE: WQ Evaluation for Complaint # 98-0534 Shayla and Casey Cox 13224 -J44• Avenue SE Renton, WA. 98055 Day ~CONNECTED (the Cox family has moved on) Owner~-768-1062 Findings I have been checking this site whenever I was in the area to see if I could find any evidence of the problems the Cox's have mentioned. I have not found any evidence of house pipes exiting to the stream or any other part of the property. The Cox's have moved on and there is a new family in the house now. They had no idea of what I was talking about. I did contact the owner (Roger Brendan) of the property and he said the previous tenants had made the illegal connection. The former tenants are now gone and the illegal pipe has been plugged up. Numerous visits to the site confirm this is no longer a problem . Options and Discussion As I stated, I haven't found any evidence of the problem in about 8 spot checks on the place. The overall condition of the property is poor and there is lots of junk lying about but nothing that would seem to affect water quality. Proposed SolutJon I suggest we close the complaint. ,· KING COUNTY WATER AND LAND RESOURCES DIVISION DRAINAGE INvESTIGATION REPORT (~) · • . ? .. ."2 Page I: lNVESTIOATIONREQUEST l: · Type /'Cg,, aLEM: Gv<<'.ef!> rtJNl?. . . . RllcBIVED BY: . Cr Cl£CTL. ti" Date: .s/.z/ '1 ? OK' d by: FILE No, qq-atx 3' Received from: (Day) C ¢,-S NAME: _._A.<--e-l-L-4--'--;.J-~8.....c::;;,C--'-/...;;t:'--S"-C..._c_-rz.. ____ PHONE ;! 2.C r / {::1-(. (Eve) ,._( _ _,) ADDRESS:_,/'--'-4_./_.Q.o<.>.C:-=---1--/.cz¢~f"--"-our:f__,_(?--=C..::.....:S.::.:c=----City ,f'p..,7e1.,J State WA Zip ~ Location of problem, if different: Reported Problem: . CALL FIRST D (Would Like To Be Present) R/ p /;A/ D a J..,-c... er t?o A-c, .4 <V o Y At?. 1;:, ~-Platname:-:tria...< th\\s No 2. Other agencies involved: A_ wc-t:.-0 , LvA ,.-~ 11-,? ~ r2-oc.> C>/'A.IC: Lot No: '3 / s T R Parcel No. l01 WI -()St 0 Kroll ~111.N Th.Bros: New Old Block No: Basin l.(i_ (o51;Jb ~"5D(p Council District /1...--Charge No. _______ _ ?-{ L 7/9 'f by: _ 6hone __ letter ___ in person RESPONSE: Citizen notified on JA//r~ 1.5 9 5'5' DISPOSITION: Turned to on ~ / by __ OR: No further action recommended because: _Lt Lead agency has been notified: b ~ ';, ~I ""':C. S?r:rc::: IA-L,-o~..S _. _ Problem has been corrected. _._ No problem has been identified. __ Prior investibation addresses problem: • · . SEEF'ILE# · Private problem • NPAP will not consider because: __ Water originates onsite and/or on neighboring parcel. Location is outside WLRD Se[jy.,Jg/;f __ Other (Specify): DATE CLOSED: g I I 7 I ,/j By: __ifS7 !, ll'f9<'~ ------=---'--'-------~ ~ K1NG CouNTY ~ Department of Natural Reaourcea ~ Water and Land Reaource Dlvlalon PILE NO. NAME D90616 ALLAN KIEBLER ADDRESS 14102 148TH PL SE PHONE 426/228·1448 TB PAOE 8&8J3 DRAINAGE INVESTIGATION REPORT FIELD INVESTIGATION KROLL PAGE 811W DATE INITIALS - 1/27/89 MAINT. DIVISION DMP DETAILS OF INVESTIGATION: 91°0101 BITE VISIT ON 2/27/99. RECEIVED CALL FROM L, GETTLE THAT A RJD POND LOCATED IN THE PLAT OF BRIAR HIUI DIV. 4 WAS CURRENTLY IN OVERFLOW. MET WITH UR. KIE8LEA ANO FAMILY ON SITE. INVE8TIQATION FOUND THAT UPON SITE VISIT THE POND WAS OCCURINQ A BREACH OF THE SPILLWAY ONTO 148TH PL IE, THE SPILLWAY 18 DIRECTED TO OVERFLOW ONTO THE R/W WITH FLOW BEINQ COVEYED VIA CURBSIDE DRAIN AQE TO THE SOUTH, THREE TYPE I CATCH BA81N8 LOCATED AT THE INTERSECTION OF 8E.139TH Pl CONTAINED WATER OVERFLOW THE TOP OF THE BABIN, 0 A8 WATER IN THE POND WAS AT A HIGHER ELEVATION TH&N THE RIM OF THI BASIN GRADE. FLOW FROM THE TYPE I BA8IN8 ARE CONVEY SOUTH ON 1H PL BE., AND WEIT A.LONG SE 11 TH PL, A II' RUN OF 10" CMP 18 THE OUTLET PIP& FROM THE POND TO THE CONTROL MANHOLE, THE MANHOLE REFLECTED WATER BNTERING THE 10'" PIPE AT APPROX. 10% CAPACITY (•THAN 4..f1. THE OVERFLOW TEE.SECTIN WAI NOT IN OV&AFLOW. THl8 INDICATED THAT A BLOCKAGE OCCUREO AT THE PIPE INLET TO THE CS/081, TREE DURIS FROM OVERHANGING IEVERGRIEN8 WERE A&MOVl!D FROM THE PIPE INLET INCREASING THE AMOUNT OF WATER RELEASE TO THE Cl/081, EVENTUALLY, WITH IOMI MANUEL LABOR THE BLOCKAGE WAI REMOVED AND THE POND WA& CAPABLE OF DECRl!A81NO AND THE OVERFLOW CEASED. THE KIE8LER LOT 18 LOCATED ON THE a.w. SIDE OF THE POND WITH A PRIVATE GATE PROVIDING ACCESS TO THE TRACT. THE BEAii ELEVATION ON THE WEIT BIDE OF THE POND DID NOT POSE A THREAT TO THE KIEBLER LOT. WATER WAI DESIGNED TO OVERFLOW ONTO THE R/W OF 141TH PL SE, MR. KIEBLER AND FAMILY WAS VERY PLEASED WITH THE EDUCATIONAL EXPERIENCE ANO OPPORTUNITY TO DISCUSS THE FUNCTION OF THE POND. SKETCH: V KING COUNTY WATER AND LAND REsOURCES DIVISION C JI --- DRAINAGE INvESTIGAT. ION REPORT /;f;>) • Page I: INVEsTIGATIONREQUEST ~ Type c__ -BLEM:~ . --- RJKEYEDBY: JUN., Date:~/11 OK'dby: ~FILENo. qq-(){tOC( Received from: (Day) ,._( --'> (Eve) ( ) PHONE------NAME:~~ ADDRESS: /4t,d){g o5o lole //1 ,57: City ~ State. __ Zif{@S'J Location of problem, if different: · Reported Problem: CALL FIRST D (Would Like To Be Present) ~r,t-u;;,,_,,J -P-ri ~ ~n:y tJJ'L, tbf :X 12-J' //4-J-fh ,rve, Se. l'?l> cwu.-,s). -J>ti,J 0 ~ tJ} -/Ju--~ ~ (--r>'lfaP/e.u..'J7n;zJ.s t;s~)- ~Pf:WL jll<MtO il, ~,,.;_, ~ --/rJ 14::;n'--.5:r,) /,Uh1cN tu_ l<9) • ~ ~~ ~ ~.c»u_e_ k ~ -hu .,I,~~ 1,JJ,li/U1.CL ~ ~ ~ ,7"Y\Vu -/-11.L-~ ~ /1.bV P"~~- o4~ e)(s·l;s J,..._,:::...;" o-1-...r !'nr"' Plat name: Lot No: Block No: Other agencies involved: s T R Parcel NoD <]4 lloo Ll5D Kroll 510 Th.Bros: New u.5ZR J2. Old ~6pS Basin ~ Council District L2:._ Charge No. RESPONSE: Citizen notified on / 5. a/s.f by: __ phone __ letter .....x:_--in-. -p-P.r-so_n __ _ d,.,-~. ,;-;,a...n,c....-~ ~ :it,r.r, ~ G~ ~ ~ ,,._. ~ ~ ~~re, Zhv.r-c....,.....,.._A-...tt,, ~--...o <Z:.,.n~.,..,,, VT!w--.£.-Ar"~,. JJ -'' (1,/.,,.,.;.,._J a,,4 c'..-,n .,,.,,.. ~,.,, e ~c ~ ,,.,,.c-, ,t.,,,.,...-~ ~ .....,~, ~ .... .6'<T>1-,, ;./ """"' ~ nk-~.., r .... ~ C'a,...,c,....,.....:, ~ ;<J., -Cl', <t&' Mh nr~o ~ ~ ~tAJ <,,rr ,<.c.. ,v__.c;'.> ~~..; "'""' ~ ,;:>,rv,rt..,,-..4, DISPOSITION: Turned to·--on / / by __ OR: No further action recommended ber.ause: _£ Leadagencyhasbeennotified: /(,,JC ~J""17 'r' ~---f ...:__ Problem has been corrected. ___ No problem has been identified. __ Prior investigation addresses problem: .• SEEFILE# . Private problem· NJ)AP will not consider because: --- __ Water originates onsite and/or on neighboring parcel. Location is outside WLRD Se~jj,9! · __ Other (Specify): nATEcLosEo CZ1 2 1 ti By: ~v ;(l//Vl#-k . <-", ,_,_._ -, __ : __ -,,_._._\i.~k--_-~--_-_....___.::.,.:-~ --- . .,1,,/,: ... ·.•: .. ·.:,;-v.' ' • I • Complaint 99-0609 Torantola Investigated by Chris Treichel 08/19/99 Visited, and met Mrs. Torantola at the site. Her property is a five acre lot, Lot 16 of Black Loam Five Acre Tracts. Her lot is at the east end of the semi developed portion of SE 136" ST. The lot slopes from north to south. Streets 144" Ave SE, 146" Ave SE, 148" Ave SE, and 132'' Ave SE are undeveloped at this time. The area in'question is east of the site. It is wooded area of approximately 62. 7 acres, has type 2 and 3 wetlands on it, and is located within the city limits of Renton. There is currently a land use proposal by B1111181ead Construction filed with the city under: LUA-99-069, PP, ECF,V, to subdivide the property into 218 lots for single family residences. Mrs. Torantola is concerned that the development proposal does not adequetley address the storm water runoff. She also said that two years ago she received a letter from the county wanting to vacate SE 136" ST, so the county could expand Maplewood park and put in additional baseball fields. The Bumstead proposal does not include using SE 136"' ST. _ 14606 SE 136" ST .I I ~! ..---1-------<i i Future Bu i1 D \I _ ____________ ..l_ J.1 .. _ .. 1__ .L~ ·----------· , .. ' -· future ba1eball tlekll? m Wetlands ---KING COUNTY WATER AND LAND RESOURCES DIVISION C J-l -- . DRAINAGE INvESTIGATION REPORT (JP\') · /7. ~ ,:f' ~/ ~J._age I: INvEsTIGATIONREQUEST . Type _.L..L_ .aLBM: C )(///j/-1!1.i/ll.9 <:!Lt1LL/12. MCEJYBDBY: ~ Date: mf99 OK'dby: ~ F'ILENo. qq 0(p2{5_ N:"'~ CJ,iD]L!] 1 -3.%'~oz (E .. ) ADDRESS: jy7/?)T)3Jkdi I?/ ( fE City ~ State -""i.LJ....~::~ Location of problem, if different: Ph1t name: Other agencies involved: s T R Parcel :No. lQ:J2 Q-:,0±1:() Lot No: Kroll ¥'H Th.Bros: New Old Block No: /;5lpJ 2:, 3 esos Basin 1.-C,le...; Council District _fr Charge No. ______ _ RESPONSE: Citizen notified on 12/,,/99 by: _)f.._ phone __ letter __ in person ,,, ,r;r ...... ;.,.... (/J<J,-.-,A,/ o_.; , ,,nr ,.;.. ., /Y,. .,.,...,.. ~_.,,.,, .,. $ ,.., ,.. t:.,.,, ,.,...., ,- a..... ."1 4-...-v ..,; .. .-~,o,,r, ~rr"""-~-_, _. ,__. e,p ......... .,........,_.,.. r,;- . ~ ~ 4. -1,..,, ~-~ .,.,....,, .... ,..,,,....... t'•.,.,,..,.... DISPOSITION: Turned to_ on _ _,__.,___ by __ OR: No further action recommended because: _ Lead agency has been notified:. _____________________ _ ...:._ Problem has been corrected. _ No problem has been identified. __ Prior investigation addresses problem: SEE FILE# --- • Private problem • NPAP will not consider because: __ Water originates onsite and/or on neighboring parcel. Location is outside WLRD S?1?J?. --1'.C_Other (Specify)· DATE CLOSED: </ I ,.l__ I / j' By. G.12v..;,-.,'l)...;~ fY;7/&6' . ------------------- 3~::ih~:1y.ry .. ~ 't:·/.(/> Wet area • CMUWall 2-4' tall • J:t;\:.<':,:.t~;E·.· . ,,._ .. :·~--... · •.. ,'.-•• • ... : .. :-.··.·.:.·.'.? ... ;.·.:.·.·.· .. · .• ~ ·'.··.·.· .. ·.~.·_i ... :<' ' J " ' •••• ,. ' : ••• ??~·-.. -{,,/ -{·:,: ~>, ... ' ..... f>)i ;;./~.'.-?}'} ·' .. Complaint 99-0625 Quinn Investigated by Chris Treichel 08/30/99 Met with Mrs. Quinn on site Aug. 27, 1999. Her lot is Lot 44 of Briar Hills Div 4. The property is relatively flat but the house does sit in the higher elevation. There is a CMU block wall on the west property line. The water drains away from the house in all directions. They have a street to the east and south, a single-family residence to the west, and Maplewood Park to the north. She stated that she was worried about an area in the Northwest comer of the property where the water seems to slowly infiltrate. She stated that she and her husband thought that the sprinkler system for the yard maybe leaking, they are In the process of replacing some of the sprinkler beads. When they were digging the sprinkler heads up, she stated that there was water in the ground. She also stated that they smelled a waste type of odor. The area seemed to be the low point from the park, house and neighbors. She stated that this was occurring prior to the CMU wall being installed. Maplewood Park Blockade at end of road +- <( ._ __ _J .,, Lot 44 Briar Hills #2 8E138thPL IJ IC I NTS "--:...~ _..4 KING COUNfY WATER AND LAND RESOURCES DIVISION DRAINAGE INVESTIGATION REPORT [~ol .LEM: 'Dfl..A j,_}I'\ i;,-~ INVESTIGATION REQUEST Type -(:_, l<.ECl!(VED BY: /dAv u 4'== Date: ¢ f PO OK'd by: FILE No. 00-59 7 Received from: NAME: MR.~ ADDRESS: / 4: / 0 D (Day) cl/:Z5 l PHONE 2 t..b -'2, '} S-b (Eve) ~C _ ___,) /sl......J City A;f .,'-"-State __ Zip c; <fo s· L0cATI0N OF PROBLEM, IF DIFFERENT: Lot No: Block No: Other agencies involved: No field investigation required'.D~ Me: -15. _:.2:3__ _£_ ' ' · 'l4 S T R Parce1No./52J(}$f:J/7 Kroll i/Q£ Th.Bros: New 6:f(p fJ;if2 Basin LCR Council District /;l Charge No. _______ _ RESPONSE: Citiz~n notified on q fill> i, by: ~ phone _ letter __ in person '),o .... ,qL,."t'HA-v$«rL ~t" . ...i7 MU, Y,tJ;,>J 7?.> J;>)Sc-vrS vf'UJ.,.,,,INl,, C. IP f /J-&JG,,c-..,-, #St> 1 NI/. 0 ~ G6~.s'c,qfL-7 5~ W.-tS SA rt S' f" )6() /,J , ..,. H HI s I ~~,,+,..("'i'I If./ ' DISPOSITION: Turned to on / / by __ OR: No further action recommended because: )(_ Lead agency has been notified: 'w G:~ s: ' 1>i2 tJ ALT Hs ,J ..s .f;;:/L- _. Problem has been corrected. _. _ No problem r<as been identified. __ Prior investigation addresses problem: · -Private problem -NDAP will not consider because: SEE FILE# __ _ ___ Water originates onsite and/or on neighboring parcel. ___ Location is outside WLRD Service Area. _ __,Other (Specify): DATE CLOSED: 'l I " ;O "6 By: D~ 1<. f b -ro s vJ E: E: s KING COUN I\' WATER AND LAND RESOURCES DIVISIO!'I . l DRAINAGE INVESTIGATION REPORT 0' INVESTIGATION REQUEST Type FC/L .BLEM:~¢, R.ECB!VED BY: Date:/ I f#/co OK'd by: ~ FILE No. @. 0?63 Received from: D ~~C~l C~~c-~1 NAME: ___,:Q .... r ~ ... ~..__.UalL'ALo<<,.LN~A'..l.,, ______ PHONE 8,.).8:: -/ <lt/'f ____ _ ADDRESS:__,/_,~r-=OO"-"-'-{.........._,$..q£.,... -~'-"C--~__.,,S_._':T....__city ~ r State __ Zip 9'!DS'? LocA TION OF PROBLEM, IF DIFFERENT: It-/ 'lo~ € Plat name: Lot No: Block No: Other agencies involved: No field investigation required== Krol15>/o Th.Bros: New ft60t-{;2. Basin LC.,12... Council District _fL Charge No. _______ _ RESPONSE: Citizen notified on by: __ phone __ letter __ in person '[)1.S.c..w~'3 c"<:> W / J:tc__/c._ /..°"-u/J'tfn1N P55", /4-J.,1-,n 11.:ns-?-J ,IN &t,..Jvt--c7 w / ~ U?-· /1--('.J() /h::J 1 .r,v,7/' A74""A/~...-"'t> ~<..$ • DISPOSITION: Turned to on _ _,I_-'--by __ OR: No further action recommended because: _ Lead agency has been notified: ________________________ _ • Problem has been corrected. _ No problem has been identified. __ Prior investigation addresses problem: \ . SEE FILE# --- -.-Private problem -NDAP will not consider because: __ Water originates onsite and/or on neighboring parcel. Location is outside WL~Jrea. DATE CLOSED W > ;c/ By: ~ #A°)7.,,t.P ,,?>.> 5 _ __,Other (Specify): e • I. Complaint No 00-0763 Investigated By: Virgil Pacampara DETAil . .S OF INVESTIGATION Name : Lola Archer Date: November 29, 2000 I went to the residence of Mrs. Lola Archer on 11129/00 at 3:00 PM. She was not home at time of the visit. I was able to spoke with Mr. Rene Treadwell (neighbor of Mrs. Archer) who lives at# 14005 SE 133'' St. He is also concern on the damaged gate and people entering/using the easement as a trail/access which is located at the back/rear side of his property. Mr. Treadwell showed me the damaged /tom down gate. He informed me that the King cowity has installed the fence gate and showed me also drainage catch basin aloof the undeveloped trail. Investigation shows that the gate is located at the south end of the culdesac of SE 132° St. The gate is made of ·aluminum griW round bar and attached to a wooden post (4"by 4" by 6 feet). The gate is at the corner of 140,. Ave. SE and SE 132"' Ave. St. The fence gate is detached from the wooden post and bent. . Inquiry reveals that tho access road is not included in the list of KC maintained road. It is a dirt road and undeveloped and no street vehicular access. Gravel Road aa.1S2ND 8T • 3 14 Archer #14004 I ST. Treadwell #14005 ·, 18 I 31 • 32 ea. 1MTH ST. 33 DNTS KING COUNTY WATER AND LXNb .RESOURCES DMSION DRAINAGE INvESTIGATION REPORT C ~e..') IN ~b> ei~ATION REQUEST Type r-:-c.. '{L. CEIVED BY· I 2-3 0 I OK'db :~ FILENO. Received from: (Day) ( IJ--Z.$) . NAME: K'-'t-J lA '<Lo r1-PHONE~ -4:3 6 7 ADDRESS: JL/-11, D St: / J 7 #-f)(.._ City ~v-. State __ Zip __ _ (Eve) ,._( _--1) LocA TION OF PROBLEM, IF DIFFERENT: I tr O O S / 4"C, 4 \.... f l $.-0 • Access Permission Granted D Call First (Would Like To Be Present) D I ti SI O I ~ df" 1\t~b\ 1h~ rie3 7t.t ~o-,il,0-tcP h ~ be--~ r~ vi~-"~· I J + eJJ~5 fl ~"G dv~ '"' tlr.e.. r,v/ D ft>.;o., J, 71,€.,, b.--e.J a vi v .f () o j} "fil\ 'f' j e::f A.-/ ~ Vl ~ +: 11r-+ f\ e_, d U c.,.,e---E. h di S a /-Pr t1, e,,f e ;) r 4 f s . --::fs--1-~ i,-e_, 4 V\. / /,,.Jc v/'_ roA~ av41f4)J., ~ de/~,-fo 1,r ?YC).bk ( ( cli,u.,k, _w/ ~ D~ d,-a-';t?' ~ ~ ~ , l>,JJ,:;. /GIC,6 MA~ ,4L--S"b /C)Jl),,J, Plat name: ~ C'\. ~ V-{~,'/Is 4/>lf {D1os1s_) Lot No: Block No: Other agencies involved: No field investigation required 'f[l!L~_f >'fD -feW#l@jij Y-t S T R Parcel No. / C> 77,,0 3 Qiil:fi:J-t( Kroll 8 II vJ Th.Bros: New05 7 A3 DISPOSITION: Turned to on --'/ _ _..._/ _ by __ OR: No further action recommended because: _ Lead agency has been notified:-.::~--:-,-,---.,..--,-----_:.----------- -;-. Problem has been corrected. No problem has been identified. __ Prior investigation addresses problem: · SEE FILE# _ Private problem· NDAP will not consider because: --- __ Water originates onsite and/or on neighboring parcel. Location is outside WLR~Area. DATE CLOSED k: I j KJ/ By JIJ11 fn #11 _ __,Other (Specify): KING COUNTY WATER AND LAND RESOURCES DMSION DRAIN.AGE INvESTIGATION REPORT (?'f/3'.2) Type £CfL IVEDBY: D OK'db: F LENO 2001 - · Received from: (Day) (t/~ PHONE ~35': !i367 (Eve) ,__( _ ____,) NAME:(J1Afl~~y~ ADDRESS: t*tao 86 /'2:.9.,.,,, rJL City Re,µw,t..l State lJA Zip __ _ LocA TION OF PROBLEM, IF DIFFERENT: /i005 1t./f1" Pl Access Permission Granted D Call First (Would Like To Be Present) D ~10 ~~ Plat name: Q'?65/) Lot No: Block No: R Parcel No. lO]dO':JiOS'/6 Krolt'i//lJ Th.Bros: New 0$) A-3 RDP Basin L::()L Collll ii District~ Charge No. RESPONSE: Citizen notified on I 11.. ~ I O \ by: _L phone __ letter __ in person -""ttn, "f.tl.e:. ~~fJ'(" u) F,t-lS'P 1'C ~l=W fe-J.D VJ\\..L ~t:E. 1'2..Wl:S.I<~ DISPOSITION: Turned to..£ on /Z-1J..4o/ by~R: No further action recommended because: _ Lead agency has been notified:----------,------------------ -_ Problem has been corrected. __ No problem has been identified. __ Prior investigation addresses problem: · -SEE FILE# __ _ ..,WPrivate problem -NDAP will not consider because: ___ Water originates onsite and/or on neighboring parcel. DATE CLOSED ( 0 I Z.:L ;01... By: -tf:/ __ O,ther (Specify): :l'M.5ce.,n &?«ecr?!t:J • ----·----......... COMPLAINT NO. 2001.()1105 blveatlsan,d By: Vuail PllrM!pana DETAILS OF INVESTIGATION I mpouded to a ftoodiJla duriJJa a storm event oo 12/13/01 at 4:30 PM. 1be intoneotion of 149'm PL. SE and SE 139m PL. was floodod. The water Jovel at the &cility D90515 (Briar Hills #4) was very hiab but not overftowins to the spillway. Tho 111cility was a by1)8118 pond. Tho pond was t'unctiOJ1U18 well, tbc war.or was ftowins through tho control Slnlcl1ue and unto tho orittoo. Tho dareo catch basins at tho . lntcneotion of tho road wore ovetftowins and sutl'ace water waa flowins onto tho road and by passing the pond. It seoms that either it ia clogged or too much \Vllter COIIWIS from 149TH PL. SB and SB 139m PL Tho water Jovel wu approx. 4-6 incbea. It-that tboro wero too IIIUcb water solna to CB-4. I obaeno tho great 8DIOllllt of water COIIWIS out from tho 3 catdi basina despite tho pond was woddng. I spoke with Jrqr. Briall Slates with regards to tho coadition of the .floodina. Tho sur1llco water has not fflldlocl tho houaoa iroUlld tho area. It.lust l1ayod within the odao of tho lawn and sido walb. I also notice tbat the two catch basins lid/cover wu mnowd from tho ftamo. Tho KC Roads penouael arrives at around 7:00 PM and installed the sign ("Water on tho roadway") at the upatream 111111 dowamiam. of tho 149m PL. SB. I mum to tho site to obeok the condition of tho flooding and tho water bad receded. I spoke with Mr. Taylor with repids to tho water at their baaemcot Ho io1brmed mo that the water has roadied thoir beater. I WOllt to tho crawl apace and notice that tho water was gone The beater was 'ffllddna. It aeema that tbe water that irnpac:tcd tho crawlspace and tho beat« did not COlllO from tho sudaco water but from tbo ground wat« seeplna onto tho en.wlspa-,e. Tho clearance from tho crawl surlaco and the base oftbe heat« was approx. 2"-4". l walked and drove to tho upstrealll and fbuad that there, was a la,go drainage &cllity that was discbalgiog water downstream. Tho dralnase facility was part of the now large clovelopmcot that was being coastructed at SE 12818 ST. It soems that the VAlt\lr ftom 1hia tadlity was /. clladlalglng much amount of water that may have cootributod to riao of the water level oftbo pond (D90515).1bo amount ofwatea-discbalJo ftom the now development bas to be address in the future that may impact the &cility D905 l S. Tho &cility is located within tho Routon jurisdiction. I repoUed the clogscd catdJ basin at tho intersection of 149m PL. SB and SE 139m PL. KC Roads dralnaso hot llDo. SBEFACilJTYSKETCH (. tr rtrrznlilkii!! Wl!iiio:t". • Fm: Len Juhnke RE: Engineering Review for complaint #2001-0805 Complainant: Kenneth Taylor 14920 SE 139 111 Place Renton, WA 98102 Background Called compainant who said problem had already been corrected. Findings Checked with Drainage htvestigator, Virgil Pacampara, with regards to complaint. Found out the problem was corrected on 4/29/02 by removing debris from the control structure and removing the trash rack at the outlet from CB2 to the pond of facility 090515. Options and Discussion NDA Impact Score= N/A Proposed Solution :. File should be closed as problem corrected. NDA Priority Score= NIA •• J(JNG COUNTY WATER AND LAND REsOURCES DIVISION \J ff DRAINAGE Th'Vl:STIGATION REPORT i?j;) INVESTIOATION REQUEST ~ '1l . Type ~ C. .....{LWJ!!@~--- Received from: oe FILEN 2002 - (Day) ( ~ (Eve) ( } ......,,~--~~~----PHONE ;J_j/-7t/6¥ ~---' ADDRESS: _________________ City _______ State __ Zip __ _ LocATION OF PROBLEM, IF DIFFERENT: //..,lo 1q . ,q-5,fA, t&ttfv Access Permission Granted O Call First (Would Like To Be Present) D (. ::e:~:~~:~ Lot No: Block No: ··. ~ .. -.:: {\)-~"-~,:·ff-~ .• ~.; .. :·.' . ' ,··., .. ,·····' ~,,_ _....._ fil_ fS_. \/.4 S T R Parcel No. 5 /(j,/~J(Kroll <i/0 Th.Bros: New~ ,J.3 RDP Basin /,?f Council District ( ,... City ___ Charge No. _______ _ RBsPONSE: Citizen notified on ------by: __ . phone __ letter _._ in person DISPOSITION: Turned to ~n L I C /J l--b~: No further action recommended because: Lead agency has been notified: _________ . -----------------V Problem has been corrected. __ No problem has been identified. __ Prior investigation addresses problem: -f"-: . . SEE FILE # --- ! .Private problem -NDAP will not consider because: · Water originates onsite and/or on neighboring parcel. DATE CLOSED 3· 1 l01o3 By:~ __ Other (Specify): j.JV ~ ~ :t:D&"JUir. • Memo Date: January 29, 2003 Complaint Number: 02-0599 (Smith) From: Cameron Cbapman Regarding: Closing of file 02-0599 This complaint was regarding (veggie) oil in a catch basin, reported by Grant Smith from KC Roads. The problem is Jong gone. Virgil P. found nothing and neither did I. It is not apparent whether Roads ever cleaned out the CB, as the basin is (still) filled with sediment. Either way, it has rained considerably since the time of the complain~ so it is probably a moot point. I smelled the water in the catch basin and it seemed normal. I stenciled the catch basin with Dump No Waste. There is nothing else to do and I am closing this file. Cameron Chapman .A r, ,{) KING COUNTY WATER AND LAND RESOURCES DIVISION vw;/1[~ DRAINAGE INvESTIGATION REPORT c~(AJ !NVESTIGATIONRBQUBST Type Fe f<- .illJ!LBM: l="G f'c,-...t> of.J s t-rl:.. · • 2--ro·o~ REcE1VBD ev· I AN u, ~ D te: 2 fi O 3 OK'd b : FILE No. Receivedfrorn: /<cDOT NAME: IAYl 0 /2--. , ~ /(Erv (Day) ( 'f2,5 l PHONE 2:3 .r--Lf 3G 7 (Eve} ._( _ __,) ADDRESS: /49 7.,,0 /"JCf~i... fL S;E:. City _____ -'-State __ Zip __ _ LocA TION OP PROBLEM, IF DIFFERENT: Li 00, ~ . . tt1r<r 'J'1,-\ el-s e Access Permission Granted O Call First ·(Would Like To Be Present) 0 p~ ~Ffe-~ ~~J~~~· /~~~ ~ ~re/~ Other a encies involved: . ··. ":'_! :,:i~ ::-: .• _,},.'.!~ Lot No: Block No: =. :,,..T_,_ 5;-Parcel No. /Q]JO:!l)S'/0 Kroll '6///V Th.Bros: New /157tft3 RDP BasinlL/L Council District __,&J'6'---City ___ Charge No. _______ _ RESPONSE: Citizen notified on ------by: _ phone __ letter __ in person DISPOSITION: Turned to _ on / / by __ OR: No further action recommended because: ---2JLead agency has been notified: lr CJ\,;:)~ vJ;l,1,,JT: Sf'.=c 1111.-pf5 _ Problem has been corrected. _ No problem has been identified. __ Prior investigation addresses problem: SEE FILE# __ _ . Private problem -NDAP will not consider because: ! • Water or~es onsite and/or on neighboring parcel .. DATECLOSED 'r1 i.!o3 By: ~ __ Other (Specify): lJ2o74S Citizen Action Request Request taken via Request Details f6 II {( @1<11111 County ... Department of Tranaportatlon ) Request No: · Request Date -,r1---=:..i.~--: Time /'-( .m. hnuest fo7ded to: -r; /9. 30 {,U!f.-IPU I, DIV Dispatched top.t.~:L.'&;.14.l:.,14=:.._---------- ,J 3 -13-a.m. Time Ref'd -L/-' f D p.m. Above this fine 1ot6111ce UH Below 1h11 fine lor Field UH . tnilial Investigation by J. 7ia JJ e>::= Req:.Type..J2__ Investigation Date • / -.;it, , 2003 Findings/Action Taken 0,, +I ... + P p1?C f 'le l '/'1 P) WfJ f',r, /, 0 J/c,c J,. cf j tr ., V fcrnc,;,J:.. 1/c,J:.,., ~ (tn.,rJ. i;,.n,/,eJ} Ct..ffc.f ;;;;,~ .,z4..,.,:.e, ,? \':~t:~~tf ·p~' ~5f!j.!}f 2-'if-fi;.~1. Task Completed /110 6 Refer'd to , & RPU · " Work Scheduled / /ts•,, 6 Task Code Olher PU Agency · Monlh/Task Responding Pit_..:.-...,__o""--'-'---------Date Ref'd----------· 200_ Second Invest. by __________________ _ Date Recv'd __________ , 200_ Action Taken .,..].,_,..~,.:~,..,·e,:m' ~---~\.,\r,,~·~>,._~'-e:'.:i-~ __ L . .,_j ~· __ ._ .... =b~()~(,=),r_ .. ._., /...,!) _______________ _ I q :DI' :s l+l"i tb. ,~, St.e ' A.., Request Choices ·a;ndoned/Com'I Vehicle B Utility Inspection C. ContracVOverlay issues 0. Drainage E. Debris or Hazard on Roadway F Flooding Properly Date Cloeed_~/~-~.,J-L __ , 200--=1 (E} Em11fl (I) in person (NJ Note (lett8r} {UJ Unable to contact (VJ Voice Mall G. Guardrail/Fence Damage H Spill Cleanup (General) l Inquiries RE: Maint. Activities J. Spray Application K. Washout Repair/Slide Removal L. Vegelalion Conlrol (Mow. Brush. etc.) M. Illegal Use or RMI S. Street Maint./SweeP N. Shoulder Maintenance T. Trashilitter on R/W 0. Misc. Requests U Snow/Ice P. Pothole V. Water on Road/Flooding Q. Sidewalk/Curb Mainl. W. Lid Missing (C/8, Util.) A. Repair Street/Paving X. Di1Ching 0917 IRev !2/02) While Copy (Closure) Canary Copy {PU) Pink Copy (Sctieduhng) Goldenrod Copy (Dala Entry) Y. Bridge Issues ------------------ KING COUNTY WATER AND LAND RESOURCES DIVISION DRAINAGE INvESTIGATION REPORT ,1f v -ft ~LEM: ::::DM1.v&ce:; RECEIVE~ BY: L <;.,---z::zx t,,5: INYESTIOATlON REQUEST Date: l l / rjo3 OK'd by: FILENO, Type& 2003 -(£<./s Received from: . (Day) <42-SJ (Eve) ( ) NAME: Kc'""lU Vlvl.o(? PHONE 23'[-43{.. 7 '-------' ADDRESS: /4-.fzo .5'¢: /<)j/'??r /JL City ~IY,./ StateyJ/-Zip LocATION OF PROBLEM, IF DIFFERENT: Access Permission Granted D Call Firs~ -(~o~ld Like To ~e ~esent) D .-~c.;-/73 :?. ~ c-?-#l'Y?=SI_ Platname: 0905/5' ~JU}o#l( Other a encies involved: Lot No:, Block No: s Th.Bros: New 65r;,. /.3 II RDP Basin LU Council District /;) City Charge No. ______ _ REsPONSE: Citiz:en notified on aj ~ by:~ phone __ letter __ in person ~~~ -:;:~ ~ ~-t-.· '4-e.{ 'f'~ l.<)~ ~ ~h.~ "fk,t:r /!,H<,v1I 5p&Mk ~, ~ ~ l<.I ~ ('[00 ~ '::Jo J«._ 1 f-' DISPOSITION: Turned to on _ _,! _ _,._I _ by ___ OR: No further action recommended because: _-_ Lead agency has been notified:------------------,------- -Problem has been corrected. _ No problem has been identified. __ Prior investigation addresses problem: ~ SH~# __ _ i ~rivate problem . NDAP will not consider becau_se: W · _ water originates onsite an~~"/!_ eighboring parcel. DATE CLOSED: I Zr I I p'j By: -~--'-!f7'<!_ I ~fr) f~,11b~ KING COUNTY RAINAGE INVESTIGATION REPORT FIELD INVESTIGATION NAME: Ken Taylor ADDRESS: 14920 SE 139th Pl, Renton, 98059 PHONE: 425-235-4367 . TH. BROS PG: 656J3 KROLL PAGE: 811 MAINT.DIV:4 INITlALS:MAG On site December 5, 2003. At the time of my visit It was precipitating heavily and the pond and control structure were working at well. The Inlet to the control structure bad some moderate debris on the trash rack. This debris did not disrupt Row to the control structure. The Inlet to the pond was running at nqrmal capacity for the conditions at the time or Inspection. The Emergency spillway for this pond spills over the control structure onto 149,. PL SE. On November 19, 2003 the area experienced significant precipitation. I could Rod no defects at the time of my Inspection to Indicate a blockage In the control structure or catch basins down stream from this facility. NTS SE 139th Pl \. • • TerraServer Image Courtesy of the USGS Send To Printer Back To TerraServer Change to 1lx17 Print Size Page I of I Change t.o Landscape Image courtesy of theiJ$. Geological Survey © 2004 Microsoft Corporation. Terma of Uae Privacy Statement http://terraserver .microsoft .com/Printlmage.aspx?T=4&S=l l&Z=10&X=l408&Y =13 146& ... 9/2/2005 • • • ., • 1/2 0 • =--==-:J MILE 11:•r• + N The boundaries o f the sensitive areas diS· pl a yed on these m aps are approxima t e . Additional sensilive areas t hat have not been mapped may be present on a devel- o p ment proposal site. Where differ ences occur between what is ill ust rated on these maps and the site conditions, t he a c tual p re - sence o r a b sence on t he site of t h e se nsitive area · as defined In the Sensitive Ar ea O r d inan ce . is the legal control. .These coal mines have had additional min· Ing si nce the most r~nt map was flied with t he Washl119ton Depa rtment of Natural R•· sources. Any deyelo p me n t that occurs adjacent to these areas should be Preceded by a t horough study to c on fi rm Of deny the exist ence of addit ional subsurface tunnels. : L. t -~- ; ,, .. ~ ~ , . :. .~:: -~- .{~ .. -.. ~ . .... ~"""'-'"->r-. -, .,,, . . , •; . -. . ~ ' .. t . , : t . 'I -: .:J· .. \ ,: 1 · ~,i~-· i ::;r-':-· --', -_~.,_ -~-\ ' t, ' . ,:_! -: " '., :'-.. ... ,. -:""'; .. ,\.... t ·i-· ...... ' ~-·~ 1· .. -~ ·"'ir:: I I -... I ' l. .. ,::-~. ··:·:: :~. / . " • --·: \ , ~ !.,:-~ ·' · ,;/ 1:f' i • ··~ I 1 ,• "/ ,. ,· .4 :··,·.··¥·· ,·, ·', f / \ ·-, ·.!... 'T'\;. .!/' ·, ' • ..'\: •' ;it: 'i It h : ) ~ '\. -~~~­ ~·:~~ ·-~-.. J. :· .·YJ:'·. --~~\<·~·-' ;,.. .:v.-'(/ . .L . . -~ \·:+ ' !J+i;· -~--s --r · • "'" <t, • '. -1 ,l-.. ,. ~' ... . ... ,, Coal Mine Hazard Areas )0 . :: . ~ .. :.:t .,· ;., ,"i__j'i~V,: I /r"~1 -i·~ :~---·: ... ;.:.r--·"· -~-. . . t-.. ! ,' ' .. : i ,. "I -... :'. _:.. . . ; ' . . . .. '~ .... .. \,. V I ssaquah .... , i / s ... 9 \ \ • • 1/2 0 • + MILE N The boundaries o r the sensitive areas dis- Played on t h ese maps a re approx im ate . Additional sensitive areas that have not been mapped may be present on a devel - opment proposal site. Where differences occur between what Is Illustrated 011 these maps and the site conditions, the actual pre- sence o r absence on the site of the sensitive area . a s defined In the sensitive Area Ordinance • Is the legal cont ro l. ; ·,1 ' ·..- Erosion Haza rd .Are-as :~',+ . -~:_. ,---.:: i ,. '(~;··~--: '/ , .. , l: :,._ Issaq uah 9 .j • 1/2 0 • + MILE N The boundaries of the sensitive areas dis· played on these maps are approximate. Additional sensitive areas that have not been mapped may be oresent on a devel · opment proposal site. Where differences occur between what Is illustrated on these maps and the site conditions, the actual pre· sence or absence on t11e site of the sensitive area · as defined In the sensitive Area Ordinance . Is t he legal control ·.·, ' >• ., I.,;('• , -· ... . "\ ,.- · ~ ":,". ,, tk ·, t,, . \. ,, _.., ·, .-4?.fl _ ... _ ... "" '. ' .. ,., . l ' . ' . ,. > /' ' ' . -' J \j '\ .... . .,,;.·, ·' . \ . .. ' ' ';,. . . ' / i' ' . ' ,, . _// ,·-\ see wetlands and landslide h.uard maps tor s • • H d add,uona1 po1en1,a1 se,sm1, 11a,11d areas. e1S1Il1C azar Wetlands and land11,oe ., .. s a,e susceptible t o failure during earthquakes. Otllt:r seis1nic Ar hazard areas n o t s t,o wu 011 1h1s map are Shorelines under lain l>y I JCUSlflOe sediments : eas these are sus ccp t,b le to 1,quera c1,oo. . t W' ----::r· )( ' .., .r--', ! .. -,.J ... -~~ •., ~ ~-·;·-. .:~ !;;: ;. : U .F -~. J,,~. I ·-·~: ·,I ... t·'" : . :.., •.. . . ,· ~ ; . ·... : ·-~ . .... , I'.. " . . .,.. ·t . " . r. ... .. ·c i .. ,. . •. ~·· r ,, : ~·. ' .. : , ? .L, .i. . •. • ' .., ... ,.,A.. f ·,.· '·.'./,-:- ·' : ) ~ .. ~~ro ··-·· .... ~ -·i·i,_ . :'" I ,.J~·-· •. ,:!::, JO t • ·.,· _· .IJ ) I. ;, b;;-. :3 . ( ''ll' ; -~ .. -'\':· ' ; ;\ {,. ,--~. ; :h f) , " ' ,.··,\.,;'' ,_k':.,,, . ~· ... ,. . . ,-~-. '· -~ ,r ,· t' A' .. !:+~·· -·},··· ' . 't , ' I ., ·-~,. (.I:-\.... : ~\ I\· . f.-,, ........ -. r-·· ' I , ••.-•• ....,... "'. I <+A·:--""· I -a.· .. : :_-"'l ! • . '1' .· . . • . ,'/, . . ! . . I • • _,j t • ''" .. \.: Issaqua h --, .) \ \. -., ~ ,, ., i \ : I 4---.+- ,. 9 .) • 1/2 0 • I I I:_ + MILE N The boundaries of the sensitive areas dis- Played on these maps are approximate . A dditional sens itive areas that have not been mapped may be present on a devel. o pment proposal site . Where differe nces occur between what Is Illustrated on these maps and the site conditions, the a c tual pre- se nce or absence on the site of the sensitive area -as defined In the Sensitive Area Ordinance. is the legal control. . r Landslide Hazard Areas \ . , . ' 14' I • .!· ;/ 1':· -· ,., J. '-~ ··-.~: . ...-~<¥-· ~ ,.,-/-·. \ . .. i t . \ • )> •• r 1 -~ · '{ :M · .. ...,. -~ ...,::_ _::;-. ;. 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TRIAD ASl,!2...ClATIS -. 11414116'1-IE _ .. _ 4215.e,21.&4,ca ~.M1a eoo.411.on,; lol frl• -- \ "" ~ (I, ~ o\ or,»"'"' r "~ •"" ~ n" ! . !I . I . ~-. " ~ ltO . . !Ii ii ~1 i i ;a: l:a ~ i ~ Cl) f ltO ltO!l · I C) . . ~ t 'Ifill !Ull Ill ~u 1111 HI nm Iii~ lal,'iillV"" • 11!11f1Mi' l'a'IM Ho.iaiilliiltDiWWW ---,,,.,,.,, IICllla ........ m.,~ """ ... """ DlUIS3 DlllD ~ WD ima · ()1-108 """ ... 15 .. 36 Martin Property -Technical Information Report • 4 FLOW CONTROL AND WATER QUALITY DESIGN • 4.1 Performance Standards and Drainage Concept The detention volume in the wetpond was sized with King County's computer program KCRTS. The site will release water at the KCRTS Conservation flow control standard (Level 2). The 2005 KCSWDM does not require the use of a factory of safety. A combined detention/wet pond will be used for water quality treatment. The facility has been designed using sizing criteria from the 2005 King County Surface Water Design Manual (KCSWDM). The KCRTS Level 2 flow control standard requires maintaining the durations of high flows at their pre-development (forested condition) levels for all flows greater than one-half of the 2-year peak flow up to the 50-year peak flow. The pre-development peak flow rates for the 2- year and 10-year runoff events are also required to be maintained. Dead storage in the wetpond will be used for water quality treatment. 4.2 KCRTS .Methodology The King County Runoff Time Series (KCRTS) program was developed as a hydrologic modeling tool for western King County. The runoff files have been pre-simulated for a range of land cover conditions and soil types for different regions of King County using the U.S. Environmental Protection Agency's HSPFlO model. The HSPFlO model was calibrated with regional parameters developed by the U.S. Geologic Survey and King County Basin Planning. The KCRTS program simulates the project hydrology through the scaling, summing, lagging, and level-pool routing of runoff files. The KCRTS program includes a group of analytical tools to provide statistical data on the generated time series files. The KCRTS Level 2 standard requires the project to maintain the flow durations at their predevelopment levels for flows greater than one-half of the 2-year flow up to the 50-year flow (predeveloped). A target duration curve (generated from the existing conditions time series), and the detention facility outflow duration curve are generated using KCRTS. The duration curve graph plots flow rates verses probability of exceedance ( on a logarithmic February 19, 2008 Job #04-257 Page 4-1 • • Martin Property-Technical Information Report scale). The detention facility characteristics (facility dimensions, discharge structure configuration, etc.) are manipulated to adjust the facility outflow duration curve until it approxiinately matches the target duration curve over the required range. This iterative process is repeated until the facility outflow duration curve is strictly below the lower end of the target curve (corresponding to 50% of the existing 2-year flowrate) and does not exceed the target curve by more than I 0% at all other durations in the range. Additionally, the 2- year and I 0-year peak discharges must be below the 2-year and I 0-year existing runoff rate. A summary of the results from the detention calculations is included in the following pages. Actual KCRTS output (i.e. basin summaries, stage/storage/discharge table, inflow and outflow durations, etc.) is located at the end of this section. According to Table 3.2.2.A from the 2005 KCSWDM the estimated Regional Scale Factor for the Rainfall Region is a Landsburg value of 0.83. The site is underlain with Alderwood soil, which is classified as hydrologic soils group "C" or Till soils. (Please see Figure 3.2.2A from the 2005 KCSWDM, Soil Conservation Services (SCS) map and SCS legend located at the end of the section) . February 19, 2008 Job#04-257 Page 4-2 Martin Property-Technical Information Report • 4.3 Existing Conditions • • See the Existing Conditions Exhibits located at the end of this section. All onsite existing areas have been modeled as defined in the· 2005 KCSWDM (till forest/Historic conditions). The upstream tributary areas have been modeled as non target impervious and pervious surfaces (existing). The ground cover characteristics including upstream areas are listed in the following table. Till Forest ( onsite) Till Grass (upstream) Impervious {upstream) Total 3.83 acres 0.59 acres 0.23 acres 4.65 acres The peak analysis for the pre-developed tributary area is shown below: Pre developed flows KCRTS I-hour time step Flow Frequency Analysis Time Series File:pre.tsf Project Location:Landsburg ---Annual Peak Flow Rates--------Flow Frequency Analysis------- Flow Rate Rank Time of Peak -Peaks Rank Return Prob (CFS) (CFS) Period 0.404 2 2/09/01 15:00 0. 631 1 100.00 0.990 0.107 8 1/05/02 16:00 0.404 2 25.00 0.960 0.278 4 2/28/03 16:00 0.356 3 10.00 0.900 0.137 7 8/26/04 1:00 0.278 4 5.00 0.800 0.255 5 1/05/05 10:00 0.255 5 3.00 0. 667 0.203 6 1/18/06 21:00 0.203 6 2.00 0.500 0.356 3 11/24/06 5:00 0.137 7 1.30 0.231 0.631 1 1/09/08 7:00 0.107 .8 1.10 0.091 Computed Peaks 0.556 50.00 0.980 The peak downstream flows from the detention pond will not exceed 0.20 cfs and 0.36 cfs for the 2 and 10-year storm events, respectively . February 19, 2008 Job #04-257 Page 4-3 • Martin Property-Technical Information Report 4.4 Developed Conditions See the Developed Conditions Exhibit located at the end of this section. The proposed drainage system consists of rolled curb and gutter with catch basins for the interception of runoff. Roof and footing drains are to be connected to the same conveyance system, which in tum discharges into the detention and water quality facility. 0.09 acres of ROW are not able to be routed to the pond and are treated as bypass in the detention calculations. The percent impervious area for lots is calculated assuming 5 5%, the maximum allowed per King County Code Title 21A.12.030. · The 2005 KCSWDM requires flow control BMP's for all projects or portions of projects that are subject to Core Requirement #3 and will not be served by infiltration facilities. Small lots< 22,000 sf are required to apply one or more BMP's for an impervious area equal to at least 10% of the site/lot. 10% of the site's area is 16,683 sfor 0.383 acres. 5,532 sf(0.13 acres) of ROW along with the impervious area of Lot I (7,729 sf x 55% = 4,251 sf) will be treated with a rain garden and 7 ,OOOsf of impervious area will be treated with basic • dispersion BMP's. • Rain garden sizing is shown below: Runoff Source: 5,532 sf+ 4,251 sf= 9,783 sf impervious area Minimum Storage Required= 3 inches (0.25 ft) Storage VolumeRequired = 9,783 sfx 0.25 feet= 2,446 cf Rain Garden Design Volume= 2,447 cf Provided Volume= 2,483 cf Gravel filled trenches will be used for basic dispersion. Per Appendix C.2.4.4. -Use of Gravel Filled Trenches for Basic Dispersion (page C-50) of the 2005 KCSWDM "where dispersion ofconcentratedjlows through 50/eet of vegetation is not feasible, such as on a small or highly constrained site, a gravel filled trench (also called a dispersion trench) may be used to "unconcentrate "flows. " February 19, 2008 Job#04-257 Page 4-4 Martin Property -Technical Information Report IO feet of trench is required per 700 square feet of impervious area. IO feet of dispersion • trench will be provided for IO of the lots. 700 square feet of impervious area from IO houses will drain to its respective dispersion trench. This will provide a longer time of concentration and promote local infiltration. The proposed gravel dispersion trenches combined with the proposed rain garden will provide treatment for 16,783 sf, satisfying the small lot BMP requirements. • • According to Table 5.2.2.A of the 2005 KCSWDM rain garden BMP's and basic dispersion allow for the treated impervious area to be modeled as 50% impervious and 50% grass. A summary of the modeled areas is shown below. Areas Tributary to Pond Lots 55% x 2.30 acres = 1.27 acres Impervious 45% x 2.30 acres = 1.03 acres Till Grass 50% x (*6,930 sf+ **4,251 sf) = 0.13 acres impervious modeled as till grass Lot Impervious Lot Till Grass Pond Tract ROW 0.44 acres impervious 0.02 acres pervious 1.27-0.13 = 1.14 acres 1.03 + 0.13 = 1.16 acres 0.20 acres Open Water (Impervious) 0.54 acres Till Grass 0.13 acres impervious (to rain garden) modeled as 50% imp. and 50% grass = 0.06 acres Till Grass+ 0.07 acres Impervious ROW Impervious ROW Till Grass Open Space Upstream Area February 19, 2008 Job #04-257 0.44 -0.06 = 0.38 acres 0.02 + 0.06 = 0.08 acres 0.24 acres Till Grass 0.23 acres Impervious 0.59 acres Till Grass Page 4-5 • Martin Property-Technical Information Report Impervious Total to Pond Till Grass Total to Pond Total to Pond 1.14 + 0.20 + 0.38 + 0.23 = 1.95 acres 1.16 + 0.54 + 0.08 + 0.24 + 0.59 = 2.62 acres 4.56 acres *6,930 sf= area to dispersion trenches **4,251 sf= Lot 1 impervious area Developed Flows Flow Frequency Analysis Time Series File:dev.tsf Project Location:Landsburg ---Annual Peak Flow Rates--------Flow Frequency Analysis------- Flow Rate Rank Time of Peak --Peaks Rank Return Prob (CFS) (CFS) Period 0.876 4 2/09/01 2:00 1. 65 1 100.00 0.990 0. 471 8 12/03/01 17:00 1. 06 2 25.00 0.960 0. 757 7 9/10/03 15:00 0.939 3 10.00 o. 900 0.939 3 8/26/04 1:00 0.876 4 5.00 0. 800 0. 764 6 10/28/04 18:00 0.790 5 3.00 0. 667 0. 790 5 10/22/05 17:00 0.764 6 2.00 0.500 1. 06 2 11/21/06 9:00 0.757 7 1. 30 0.231 1. 65 1 1/09/08 7:00 0.471 8 1.10 0. 091 Computed Peaks 1. 45 50.00 0.980 A small area ofright-of-way on SE 125 1h Street is too low to reach the pond. This area has been treated as Bypass area. Bypass ROW 0.09 acres impervious The peak analysis for the developed and bypass tributary areas are shown below: Bypass Flows Flow Frequency Analysis Time Series File:byp.tsf Project Location:Landsburg ---Annual Peak Flow Rates--------Flow Frequency Analysis-----c- Flow Rate Rank (CFS) 0.029 0.020 0.036 0.038 0.032 0.033 0.037 0.048 Computed Peaks February 19, 2008 Job#04-257 7 8 4 2 6 5 3 1 Time of Peak - 2/09/01 2:00 12/03/01 17:00 9/10/03 15:00 8/26/04 1:00 10/28/04 18:00 10/22/05 17:00 10/26/06 3:00 1/09/08 7:00 -Peaks Rank Return Prob (CFS) Period 0.048 1 100.00 0.990 0.038 2 25.00 0.960 0.037 3 10.00 0.900 0.036 4 5.00 0. 800 0.033 5 3.00 0. 667 0.032 6 2.00 0.500 0.029 7 1. 30 0.231 0.020 8 1.10 0. 091 0.045 50.00 0.980 Page 4-6 ------------------------ Martin Property-Technical Information Report 4.5 Detention Pond Design The detention pond has been designed per Section 5.3 Detention Facilities of the 2005 KCSWDM. The wetpond was modeled with a design depth of 5.5 feet, and the resulting theoretical pond is summarized below: Theoretical Pond Type of Facility: Side Slope: Pond Bottom Length: Pond Bottom Width: Pond Bottom Area: Top Area at 1 ft. FB: Effective Storage Depth: Stage O Elevation: Storage Volume: Riser Head: Riser Diameter: Number of orifices: Orifice # Height (ft) 1 0.00 2 2.60 3 3.80 Top Notch Weir: Length: Weir Height: Outflow Rating Curve: Detention Pond 2.00 H:lV 135. 00 ft 45.00 ft 6075. sq. ft 11431. 0.262 5.50 0.00 45190. 1. 037 5.50 12.00 3 sq. ft acres ft ft cu. ft ac-ft ft inches Full Head Diameter Discharge (in) (CFS) 1.50 0.143 1. 63 0.123 1. 50 0.080 Rectangular 5.00 in 4.80 ft None Pipe Diameter (in) 4.0 4.0 Theoretical storage volume= 45,190 ft3 Design storage volume= 51,969 rt3 Provided storage volume= 53,167 ft3 A 17. 7% factor of safety is used to compensate for potential construction constraints in the design storage volume, see the Pond Volume spreadsheet. A copy of the KCRTS summary printouts of both the theoretical and actual ponds are at the end of this section. February 19, 2008 Jol:>#04-257 Page 4-7 --l Martin Property-Technical Information Report The flowpath dimensions are calculated per Section 6.4 Wetpool Facility Designs of the 2005 • KCSWDM. A. copy of the Pond plan and sections is located at the end of this section. • • (168 + 2227) Length= = 197.5/eet 2 Width= (so.5 +73 ) =61.75/eet 2 Flowpath Ratio= 197.5'/61.75' = 3.20 The actual pond including the safety factor was modeled using the bottom area of the designed pond. The pond is summarized the table below: Actual Pond Type of Facility: .Side Slope: Pond Bottom Length: Pond Bottom Width: Pond Bottom Area: Top Area at 1 ft. FB: Effective Storage Depth: Stage O Elevation: Storage Volume: Riser Head: Riser Diameter: Number of orifices: Orifice # Height (ft) 1 0.00 2 2.60 3 3.80 Top Notch Weir: Length: Weir Height: Outflow Rating Curve: Detention Pond 2.00 H:lV 147.79 ft 49.26 ft 7281. sq. ft 13081. sq. ft 0.300 acres 5.50 ft 0.00 ft 52855. cu . ft 1. 213 ac-ft 5.50 ft 12.00 inches 3 Full Head Pipe Diameter Discharge Diameter (in) (CFS) (in) 1. 50 0.143 1. 63 0.123 4.0 1. 50 0.080 4. 0 Rectangular 5.00 in 4.80 ft None The table shown below represents the combined peak flows from the actual detention facility and bypass. Hyd R/D Facility Tributary Reservoir POC Outflow Outflow Inflow Inflow Target Cale 1 0.82 0.05 ******** ******* 0.85 2 0.29 0.03 ******** ******* 0.30 3 0.28 0.03 ******** 0.36 0.29 4 0.17 0.02 ******** ******* 0.18 5 0.17 0.02 ******** ******* 0.17 6 0.10 0.02 ******** 0.20 0 .11 7 0.08 0.04 ******** ******* 0.10 8 0.07 0.02 ******** ******* 0.07 February 19, 2008 /r.FJJAP. Page 4-8 Job #04-257 ;...---- • • • Martin Property -Technical Information Report Due to limitations of running the KCRTS program with reduced runoff record files, information for the 50-year duration curves is not available. Because of this, the upper limit of the target duration curve is based on the 25-year existing design storm event. Based on discussions with King County personnel responsible for creating the KCRTS program, the difference in volume of a detention facility sized using the 25-year duration curve versus a facility sized using the 50-year duration curve is negligible. The following figure is a graph of cumulative probability vs. discharge at the point of compliance. The graph shows that the peak flows at the point of compliance for the 2 and IO-year storm events will not exceed those of the predeveloped conditions. Return Period 2 5 10 20 50 100 10 0 rdout pks in Landsburg • • dsoutpks 0 pre.pks 0 • byp.pks 0 0 N e 0 • 0 o 000 in • e u. 0 ~ 11, 10· 0 • .. -5 t .!!l 0 • • • • • • • • 10··2..L~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 2 5 10 20 30 40 50 60 70 BO 90 95 98 99 February 19, 2008 Job #04-257 Currulative Probability Page 4-9 Martin Property -Technical Information Report The following figure is a graph of probability exceedance vs. discharge at the point of • compliance. The graph shows that the outflow duration curve is strictly below the lower end of the target curve ( corresponding to 50% of the existing 2-year flow rate) and does not exceed the target curve by more than I 0% at all other durations in the range . • • U) u. !:!. a, e> "' 'li c5 ... 0 "' N 0 N 0 0 10 .. February 19, 2008 Job #04-257 10 .. 10.:, Probabifity E>o:eedence rdout.dur o dsout.dur • pre.dur o Page 4-10 • • • Martin Property-Technical Information Report The following table shows the duration comparison analysis for the theoretical and actual ponds. Theoretical Pond Duration Comparison Anaylsis Base File: pre.tsf New File: dsout.tsf Cutoff Units: Discharge in CFS -----Fraction of Time--------------Check of Tolerance------- Cutoff Base New %Change Probability 0.101 0.92E-02 0.82E-02 -10.8 I 0.92E-02 0.124 Oc61E-02 0.63E-02 3.5 I 0.61E-02 0.148 0.39E-02 0.47E-02 20.0 I 0.39E-02 0.171 0.26E-02 0.27E-02 4.4 I 0.26E-02 0 .194 0.16E-02 0.15E-02 -9. 0 I 0.16E-02 0.218 0. llE-02 0.12E-02 8.6 I 0. llE-02 0.241 0.88E-03 0. llE-02 25.9 I 0.88E-03 0. 264 0.65E-03 0.78E-03 20.0 I 0.65E-03 0.288 0.46E-03 0. 42E-03 -7.1 I 0.46E-03 0.311 0.33E-03 0.21E-03 -35.0 I 0.33E-03 0.335 0.20E-03 0.82E-04 -58.3 I 0.20E-03 0.358 0.98E-04 0.65E-04 -33.3 I 0.98E-04 0.381 0.49E-04 0.33E-04 -33.3 I 0.49E-04 Maximum positive excursion= 0.022 cfs ( 9.4%) occurring at 0.234 cfs on the Base Data:pre.tsf and at 0.256 cfs on the New Data:dsout.tsf Maximum negative excursion= 0.040 cfs (-11.3%) occurring at 0.355 cfs on the Base Data:pre.tsf and at 0.315 cfs on the New Data:dsout.tsf Actual Pond Duration Comparison Anaylsis Base File:. pre. tsf New File: dsout.tsf Cutoff Units: Discharge in CFS Base New %Change 0.101 0. 098 -2.5 0.124 0.129 3.7 0.148 0.156 6.0 0.171 0.172 0.6 0 .194 0.191 -1. 9 0.218 0.236 8.4 0.241 0.259 7.3 0.264 0.272 2.8 0.288 0.286 -0.8 0. 311 0. 297 ~4.7 0.335 0. 311 -6.9 0.358 0.332 -7.1 0.381 0.375 -1. 7 -----Fraction of Time--------------Check of Tolerance------- Cutoff Base 0.102 I 0.90E-02 0.126 I 0.60E-02 0.149 I 0.38E-02 0.172 I 0.25E-02 0.196 I 0.16E-02 0.219 I 0. llE-02 0.242 I 0.86E-03 0.265 I 0.65E-03 0. 289 I 0.46E-03 0.312 I 0.31E-03 0.335 I 0.20E-03 0.358 I 0.98E-04 0.382 I 0.49E-04 February 19, 2008 Job #04-257 New %Change 0. 73E-02 -18.8 0.55E-02 -7.9 0.39E-02 2.1 0.20E-02 -21. 4 0 .14E-02 -13.1 O.llE-02 -4.3 0.91E-03 5.7 0.46E-03 -30.0 0.13E-03 -71. 4 O.OOE+OO -100.0 O.OOE+OO -100.0 O.OOE+OO -100.0 O.OOE+OO -100.0 Probability Base New %Change I 0.90E-02 0.102 0.098 -4.7 I 0.60E-02 0.126 0.116 -7.7 I 0.38E-02 0 .149 0.150 0.9 I 0.25E-02 0.172 0 .167 -3.1 I 0.16E-02 0. i96 0.185 -5.2 I O.llE-02 0.219 0.212 -3.0 I 0.86E-03 0.242 0.245 1. 2 I 0.65E-03 0. 265 0.257 -3.3 I 0.46E-03 0.289 0. 267 -7.6 I 0.31E-03 0.312 0.278 -11. 0 I 0.20E-03 0.335 0.285 -15.0 I 0.98E-04 0.358 0.291 -18.9 I 0.49E-04 0.382 0.296 -22.5 Page 4-11 • • Martin Property -Technical Information Report Maximum positive excursion= 0.004 cfs ( 1.5%) occurring at 0.241 cfs on the Base Data:pre.tsf and at 0.245 cfs on the New Data:dsout.tsf Maximum negative excursion= 0.103 cfs (-25.5%) occurring at 0.403 cfs on the Base Data:pre.tsf and at 0.301 cfs on the New Data:dsout. Control Structure The control structure has three orifices on a 12 inch riser. The first orifice is 1.50 inches in diameter and is at the bottom of the riser. The second orifice is 2.60 feet above the live/ dead elevation (442.50} and is 1.63 inches in diameter. The third orifice is 3.80 feet above the live/dead elevation and is 1.50 inches in diameter. And the weir is 5.0 inches in circwnference located 4.8 feet above the live/dead elevation. Overflow Riser The riser is designed to have enough head above it to safely pass the I 00-year peak developed flow. It has been analyzed as a weir; see Excel Riser worksheet and calculations shown below . 4.00 3.50 3.00 g2.S0 12.00 Input Output :f! 1.50 Q (cfs) 1.65 1.65 1.00 D (In) 12 12.00 0.50 H (ft) 0.31 0.00 Flow: Weir Flow Transition I/ / ~ I/ 01 fice ,.. w lP" .ff !if Wei, h .,,,., ~ 0 10 20 30 40 so 60 70 80 90 100 110 120 130 Diameter (In) where: Q = flow, 1.65 cfs D = diameter, 1.0 feet H = (0.2193xl.65 213)/ J.a213 = 0.31/eet The minimwn head above the riser (0.5 feet) will be used as per Section 6.4.2.2 of the 2005 • KCSWDM. February 19, 2008 Job #04-257 Page 4-12 • • Martin Property-Technical Information Report 4. 6 Water Quality Per the 2005 KCSWDM, the Basic Water Quality Menu will be used for water quality treatment. The site will utilize dead storage in the wetpond for water quality treatment. Section 6.4.1.1 of the KCSWDM specifies that the following equation be used when sizing wetpond facilities. To be conservative, both the site area and the bypass area are included in the calculations. A summary of the water quality facility sizing calculations is provided below. Wetpond Tributary Area= 4.56 acres The wetpond volume (Vb) is calculated from finding the volume of runoff (V,) from the mean annual storm and multiplying it by a wet-pool volume factor (j) of 3 .0. Use equation 6- 13 from the 2005 KCSWDM. V,= (0.9A;+ 0.25A1g + 0.IOA1r+ O.O!Ao) • R • 43560 where V, = volume of runoff from mean annual storm (cf) A;= area of impervious surface (2.11 acres) A1g= area of till soil covered with grass (2.45 acres) A1r= area of till soil covered with forest (0.00 acres) Ao = area of outwash soil covered with grass or forest (0.00 acres) R = rainfall from mean annual storm (0.040 feet) [Figure 6.4.1.A] V, = (0.9(2.11)+ 0.25(2.45) + 0.10(0) + 0.01(0)) • 0.040 • 43,560 = 4,880 cf Vb= V rf = ( 4,920)(3) = 14,640 cf February 19, 2008 Job#04-257 Required Water Quality Volume= 14,640 cubic feet Provided Water Quality Volume= 15,189 cubic feet Page4-13 ,, ~ 5 ! ' , • i • ' i ' ' , ; \ ' ' \ . , , ; ! ?i i I ! ' > I \ ) -,~:-- I " < / \ > l I I • I •------~•1--.-----_.--'-'--~ ------r,j 111 : i I : .JLi Pr= 1+51.rf .>, .. I 4=FM-tf lf1 fl 1:-1 ' '· ' ' " .... :{~P,-::i ---~ I~ ~:,.. --··-.,ii •:-; '-.,,,:_[ ·· ·W-q ·a~ \ ~SO-_ ··, .r~ ,. • .... -. 'f r:-, ,·, ,,r, l "--'4io·,. , -\ 0 ' ·. 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' / ------1F------------ ,, ', i + ---1---,--, ; ti ,.. C',f ~ ~ !! I ~ Iii 0 ~, " i! ii 9 (/) w I- <( <} 0 (/) (/) <( 0 <( a' I- "' 0 0 N Q b ~ 0 cg II ~ ..... iii w ...J <) SI C/J 0 lUartin Theordic,al Pond (. Retention/Detention Facility l • • Type of Facility: Side Slope: Pond Bottom Length: Pond Bottom Width: Pond Bottom Area: Top Area at 1 ft. fB: Effective Storage Depth: Stage O Elevation: Storage Volume: Riser Head: Riser Diameter: Number of orifices: Detention Pond 2.00 H: lV 135.00 ft 45.00 ft 6075. sq. ft 11431. sq. ft 0.262 acres 5. 50 ft 0.00 ft 45190. cu. ft 1.037 ac-ft 5.50 ft 12.00 inches 3 Full Head Pipe Orifice # Height I ft} Diameter (in} 1. 50 Discharge (CFS} Diameter I in} 1 0.00 2 2.60 1. 63 3 3.80 1. 50 Top Notch Weir: Rectangular Length: 5.00 in Weir Height: 4.80 ft Outflow Rating Curve: None 0 .143 0.123 0.080 4.0 4.0 Stage Elevation Storage Discharge I ft} I ft} (cu. ft} (ac-ft} (cfs} 0.00 0.00 0. 0.000 0.000 0.02 0.02 122. 0.003 0.008 0.03 0.03 183. 0.004 0. 011 0.05 0.05 305. 0.007 0.013 0.06 0.06 366. 0.008 0.015 0.08 0.08 488. 0.011 0.017 0.09 0.09 550. 0.013 0.019 0.11 0.11 67 3. 0.015 0.020 0.13 0. 13 796. 0.018 0.022 0.25 0.25 1541. 0.035 0.031 0.38 0.38 2361. 0.054 0.038 0.51 0.51 3193. 0.073 0.044 0. 64 0. 64 4037. 0.093 0.049 0.76 0.76 4827. o .111 0.053 0.89 0.89 5696. 0.131 0.058 1.02 1. 02 6577. 0.151 0.062 1.15 1.15 7471. 0.171 0.065 1. 28 1. 28 8377. 0 .192 0.069 1. 40 1. 40 9225. 0.212 0. 072 1.53 1. 53 10157. 0.233 0. 07 6 1.66 1. 66 11101. 0.255 0.079 1. 79 1. 79 12058. 0. 277 0.082 1. 92 1. 92 13029. 0.299 0.084 2.04 2.04 13936. 0.320 0.087 2 .17 2 .17 14932. 0.343 0.090 2.30 2.30 15942. 0.366 0.093 2.43 2. 4 3 16965. 0. 38 9 0.095 2.56 2.56 18001. 0.413 0.098 2. 60 2.60 18322. 0. 4 21 0.098 Percolation (cf s} 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Surf Area (sq. ft} 6075. 6089. 6097. 6111. 6118. 6133. 6140. 6154. 6169. 6256. 6351. 64 4 6. 6542. 6631. 6728. 6826. 6924. 7023. 7114. 7214. 7314. 7415. 7 516. 7 610. 7713. 7816. 7 919. 8023. 8055. !Uortin Theore(ieol Pond (. 2. 62 2.62 18484. 0.424 0.099 0.00 8071. 2.63 2.63 18564. 0.426 0.101 0.00 8079. ' . 2.65 2.65 18726. 0.430 0.104 0.00 8095. 2. 67 2.67 18888. 0. 4 34 0.108 0.00 8111. 2. 68 2.68 18969. 0. 435 0 .114 0.00 8120. 2.70 2.70 19132. 0. 4 39 0.120 0.00 8136. 2.72 2.72 19295. 0.443 0. 125 0.00 8152. 2.74 2.74 19458. 0.447 0.128 0.00 8168. 2.86 2.86 20444. 0. 4 69 0.140 0.00 8265. 2.99 2.99 21525. 0.494 0.151 0.00 8371. 3. 12 3.12 22620. 0.519 0.160 0.00 8477. 3.25 3.25 23729. 0.545 0.168 0.00 8584. 3.38 3.38 24852. o. 571 0.176 0.00 8691. 3.50 3.50 25901. 0.595 0.183 0.00 8791. 3.63 3.63 27051. 0. 621 0.189 0.00 8899. 3. 76 3. 76 28215. 0.648 0. 196 0.00 9008. 3.80 3.80 28576. 0.656 0.198 0.00 9042. 3.82 3.82 28757. 0. 660 0. 199 0.00 9059. 3.83 3. 8 3 28848. 0.662 0.201 0.00 9067. 3.85 3.85 29029. 0.666 0.204 0.00 908 4. 3. 86 3.86 29120. 0.669 0.208 0.00 9093. 3.88 3.88 29302. 0.673 0. 213 0.00 9109. 3.89 3. 8 9 29393. 0. 675 0.219 0.00 9118. 3.91 3.91 29576. 0. 679 0.223 0.00 9135. 3.93 3.93 297 59. 0.683 0.225 0.00 9152. 4.05 4.05 30863. 0.709 0.240 0.00 9253. 4.18 4.18 32073. 0.736 0.253 0.00 9364. ,. 4.31 4. 31 33298. 0. 7 64 0. 264 0.00 9475. 4 . 4 4 4 . 4 4 34537. 0. 7 93 0.275 0.00 9587. 4.56 4.56 35693. 0.819 0.285 0.00 9691. 4.69 4.69 36961. 0.848 0.294 0.00 9804. 4.80 4.80 38044. 0.873 0.302 0.00 9900. 4.89 4.89 38939. 0.894 0.341 0.00 9978. 4. 98 4. 98 39840. 0.915 0. 4 05 0.00 10057. 5.06 5.06 40648. 0.933 0. 4 80 0.00 10128. 5. 15 5. 15 41563. 0.954 0. 561 0.00 10207. 5.24 5.24 42485. 0.975 0.645 0.00 10287. 5.33 5.33 43415. 0. 997 0. 728 0.00 10367. 5. 41 5. 41 44247. 1.016 0.809 0.00 10438. 5.50 5.50 4 5190. 1. 037 0.885 0.00 10519. 5.60 5.60 4 62 4 6. 1. 062 1. 200 0.00 10609. 5.70 5.70 47312. 1.086 1.770 0.00 10699. 5.80 5.80 48386. 1. 111 2.500 0.00 107 8 9. 5. 90 5.90 4 94 69. 1.136 3.300 0.00 10880. 6.00 6.00 50562. 1. 161 3.590 0.00 10971. 6.10 6.10 51664. 1. 186 3.850 0.00 11062. 6.20 6.20 52774. 1. 212 4.090 0.00 11154. 6.30 6.30 53894. 1. 237 4.310 0.00 11246. 6. 40 6. 4 0 55024. 1. 263 4.520 0.00 11338. 6.50 6.50 56162. 1. 289 4. 720 0.00 114 31. 6.60 6.60 57310. 1. 316 4.910 0.00 11524. 6.70 6. 70 58467. 1. 34 2 5.090 0.00 11617. 6.80 6.80 59633. 1.369 5.260 0.00 11711. 6. 90 6.90 60809. 1.396 5.430 0.00 11805. I-7.00 7.00 61994. 1. 4 23 5.590 0.00 11899. 7.10 7.10 63189. 1. 4 51 5.750 0.00 11994. 7.20 7.20 64 3 93. 1. 4 7 8 5.900 0.00 12088. 7.30 7.30 65607. 1. 506 6.050 0.00 12184. 7. 40 7. 4 0 66830. 1. 534 6.190 o.oo 12279. 7.50 7.50 68063. 1.563 6.330 0.00 12375. illartin Theoreti~al Pond (. Hyd Inflow Out flow Peak Storage Stage Elev (Cu-Ft) (Ac-Ft) 1 1.65 1.02 5.54 5.54 45635. 1.048 2 0.88 0.38 4.95 4.95 39511. 0.907 3 1.06 0.30 4.78 4.78 37820. 0. 868 4 0.57 0.18 3.53 3.53 26161. 0.601 5 0.51 0. 18 3.53 3.53 26145. 0.600 6 0.47 0.13 2.79 2.79 19881. 0. 4 56 7 0.94 0.08 1.83 1. 8 3 12320. 0.283 8 0.41 0.07 1.44 1. 4 4 94 92. 0.218 Hyd R/D Facility Tributary Reservoir POC Out flow Outflow Inflow Inflow Target Cale l 1. 02 0.05 ******** ***"'·** 1. 05 2 0.38 0.03 ******** ******* 0.39 3 0.30 0.03 ******** 0.36 0.31 4 0. 18 0.02 *·** ***" ******* 0.19 5 0.18 0.02 ***-1, I<*** ... ,,,. ..... 0. 19 6 0.13 0.02 *******" 0.20 0 .13 7 0.08 0.04 ******** **-k**"* 0.10 8 0.07 0.02 ******"* * • * ..... 0.08 (. i'Hariin Achml l'ond i. Retention/Detention Facility • ,. Type of Facility: Side Slope: Pond Bottom Length: Pond Bottom Width: Pond Bottom Area: Top Area at 1 ft. FB: Effective Storage Depth: Stage O Elevation: Storage Volume: Riser Head: Riser Diameter: Number of orifices: Orifice l 2 3 Height I Et I 0.00 2.60 3. 8 0 Top Notch Weir: Length: Weir Height: Detention Pond 2.00 H:lV 138.46 ft 48.16 ft 6668. sq. ft 12196. sq. ft 0.280 acres 5.50 ft o.oo ft 48852. cu. ft 1.121 ac-ft 5.50 ft 12.00 inches 3 Full Head Pipe Diameter I in) 1.50 1.63 1. 50 Rectangular 5.00 4.80 Discharge (CFS) in ft 0. 14 3 0. 123 0.080 Diameter I in I 4.0 4.0 Outflow Rating Curve: None Stage Elevation Storage Discharge Percolation If t I If t I (cu. ft I lac-ft) (cfs) (cfs) 0.00 0.00 0. 0.000 0.000 0.00 0.02 0.02 134. 0.003 0.008 0.00 0.03 0.03 200. 0.005 0. 011 0.00 0.05 0.05 334. 0.008 0.013 0.00 0.06 0.06 401. 0.009 0.015 0.00 0.08 0.08 536. 0.012 0.017 0.00 0.09 0.09 603. 0.014 0.019 0.00 0.11 0.11 738. o. 017 0.020 0.00 0. 13 0.13 873. 0.020 0.022 0.00 0.25 0.25 1690. 0.039 0.031 0.00 0.38 0.38 2588. 0.059 0.038 0.00 0.51 0.51 3499. 0.080 0.044 0.00 0. 64 0. 64 4422. 0.102 0.049 0.00 0.76 0. 76 5286. 0.121 0.053 0.00 0.89 0.89 6234. 0.143 0.058 0.00 1. 02 1.02 7195. 0.165 0.062 0.00 1.15 1. 15 8170. 0.188 0.065 0.00 1. 28 1. 28 9158. 0.210 0.069 0.00 1.40 1. 4 0 10081. 0.231 0. 072 0.00 1. 53 1. 53 11095. 0.255 0.076 0.00 1. 66 1. 66 12122. 0.278 0.079 0.00 1. 79 1. 79 13162. 0.302 0.082 0.00 1. 92 1. 92 14216. 0.326 0.084 0.00 2. 04 2.04 15201. 0.349 0.087 0.00 2 .17 2.17 16282. 0.374 0.090 0.00 2.30 2.30 17376. 0.399 0.093 0.00 2. 43 2. 4 3 18484. 0.424 0.095 0.00 2.56 2.56 19606. 0. 4 50 0.098 0.00 Surf Area (sq. ft I 6668. 6683. 6690. 6705. 6713. 6728. 6735. 6750. 67 65. 68 56. 6954. 7053. 7152. 7245. 7345. 7 4 4 6. 7548. 7 650. 774 4. 7848. 7951. 8055. 8160. 8257. 8363. 8470. 857 6. 8684. !Uartin Adual Pond l-2. 60 2.60 19954. 0. 4 58 0.098 0.00 8717. 2. 62 2. 62 20128. 0. 4 62 0.099 0.00 87 34. 2.63 2.63 20215. 0. 4 64 0.101 0.00 8742. 2.65 2. 65 20390. 0. 4 68 0.104 0.00 8758. 2. 67 2. 67 20566. 0. 472 0 .108 0.00 8775. 2. 68 2.68 20654. 0. 4 7 4 0 .114 0.00 8783. 2.70 2.70 20829. 0. 4 78 0.120 0.00 8800. 2.72 2.72 21006. 0. 4 82 0.125 0.00 8817. 2.74 2.74 21182. 0. 4 8 6 0.128 0.00 8833. 2.86 2.86 22248. 0. 511 0.140 0.00 8934. 2.99 2.99 23417. 0.538 0.151 0.00 9043. 3.12 3.12 24599. 0.565 0 .160 0.00 9153. 3.25 3. 2 5 25796. 0. 592 0. 168 0.00 9263. 3.38 3.38 27008. 0.620 0.176 0.00 937 4. 3.50 3.50 28139. 0.646 0.183 0.00 9477. 3.63 3.63 29378. 0.674 0.189 0.00 958 9. 3. 76 3.76 30632. 0.703 0. 196 0.00 9701. 3.80 3.80 31021. 0. 712 0.198 0.00 97 3 6. 3.82 3.82 31215. 0. 717 0.199 0.00 9753. 3.83 3.83 31313. 0.719 0.201 0.00 97 62. 3.85 3.85 31508. 0.723 0. 204 0.00 9779. 3.86 3.86 3160 6. 0.726 0.208 0.00 9788. 3.88 3.88 31802. 0.730 0.213 0.00 9805. 3.89 3.89 31900. 0. 7 32 0.219 0.00 9814. 3.91 3.91 32097. 0.737 0.223 0.00 9831. 3.93 3.93 32294. 0. 741 0.225 0.00 9849. 4.05 4.05 33482. 0.769 0.240 0.00 9954. i. 4. 18 4.18 34783. 0. 7 99 0. 253 0.00 10068. 4.31 4. 31 36099. 0.829 0. 264 0.00 10182. 4. 4 4 4. 4 4 37431. 0.859 0.275 0.00 10298. 4.56 4.56 38673. 0.888 0.285 0.00 10405. 4.69 4.69 40033. 0.919 0.294 0.00 10521. 4.80 4.80 41196. 0.946 0.302 0.00 10620. 4. 8 9 4. 8 9 42155. 0. 968 0.341 0.00 10701. 4. 98 4. 98 43122. 0.990 0. 4 05 0.00 10782. 5.06 5.06 43987. 1.010 0. 4 80 0.00 10855. 5. 15 5. 15 4 4 968. 1.032 0.561 0.00 10937. 5.24 5.24 45956. 1.055 0.645 0.00 11019. 5.33 5.33 46951. 1.078 0. 728 0.00 11101. 5. 41 5. 41 47842. 1. 098 0. 809 0.00 11175. 5.50 5.50 48852. 1. 121 0.885 0.00 11258. 5.60 5.60 49982. 1. 147 1.200 0.00 11350. 5. 70 5. 70 51122. 1. 174 1.770 0.00 11443. 5.80 5.80 52271. 1.200 2.500 0.00 11536. 5. 90 5.90 53429. 1.227 3. 300 0.00 11629. 6.00 6.00 54596. 1.253 3.590 0.00 11723. 6 .10 6.10 55773. 1. 280 3.850 0.00 11817. 6.20 6.20 56960. 1.308 4.090 0.00 11911. 6.30 6.30 58156. 1.335 4.310 0.00 12006. 6. 40 6.40 59361. 1. 363 4.520 0.00 12101. 6.50 6.50 60576. 1. 391 4.720 0.00 12196. 6.60 6.60 61800. 1. 419 4.910 0.00 12292. 6. 70 6. 70 63034. 1. 447 5.090 0.00 12388. 6. 80 6.80 64278. 1. 4 7 6 5. 2 60 0.00 12484. \. 6.90 6.90 65531. 1. 504 5.430 0.00 12580. 7.00 7.00 66794. 1.533 5.590 0.00 12 67 7 . 7.10 7.10 68066. 1. 563 5.750 0.00 12774. 7.20 7.20 69349. 1. 592 5.900 0.00 12872. 7. 30 7.30 70641. 1. 622 6.050 0.00 12970. 7. 40 7.40 71943. 1. 652 6.190 0.00 13068. (. ;. \. ~lartin Adual Poncl 7.50 7.50 73254. 1.682 6.330 0.00 Hyd Inflow Outflow Peak Stage Elev 1 1. 65 0.88 5.49 5.49 2 0.88 0.31 4.82 4.82 3 1.06 0.29 4. 64 4. 64 4 0.57 0.18 3. 4 2 3. 4 2 5 0.51 0.18 3.39 3.39 6 0. 4 7 0.11 2.68 2. 68 7 0. 94 0.08 1.73 1.73 8 0.41 0.07 1. 36 1. 36 Hyd R/D Facility Tributary Reservoir Outflow Inflow Inflow 1 0.88 0.05 ******** 2 0.31 0.03 ******** 3 0.29 0.03 ******** 4 0. 18 0.02 ******** 5 0. 18 0.02 ******** 6 0 .11 0.02 ******** 7 0.08 0.04 ******** 8 0.07 0.02 ******** Route Time Series through Facility Inflow Time Series File:dev.tsf Outflow Time Series File:rdout POC Time Series File:dsout Inflow/Outflow Analysis Peak Inflow Discharge: 1.65 CFS Peak Outflow Discharge: 0.877 CFS Peak Reservoir Stage: 5.49 Ft Peak Reservoir Elev: 5.49 Ft Storage (Cu-Ft) (Ac-Ft) 48742. 1.119 41450. 0.952 39536. 0.908 27384. 27086. 20647. 12705. 9792. POC Outflow Target Cale *****"'* 0.90 ****"''** 0.32 0.36 0.30 ******* 0. 18 *****'""'* 0. 18 0.20 0 .11 ******* 0.10 ******* 0.08 at 7:00 on Jan at 11:00 on Jan 0. 629 0.622 0.474 0. 292 0.225 9 in 9 in Peak Reservoir Storage: 48742. Cu-Ft l . 119 Ac-Ft Add Time Series:byp.tsf Year 8 Year 8 Peak Summed Discharge: 0.903 CFS at 11:00 on Jan 9 in Year 8 Point of Compliance File:dsout.tsf Flow Frequency Analysis Time Series File:rdout.tsf Project Location:Landsburg ---Annual Peak Flow Rates--------Flow Frequency Analysis------- Flow Rate Rank Time of Peak --Peaks --Rank Return Prob (CFS) (CFS) I ft I Period 0.312 2 2/09/01 20:00 0.877 5.49 1 100.00 0. 990 0.071 8 11/05/01 3:00 0.312 4.82 2 25.00 0. 960 0.178 4 3/01/03 7:00 0.291 4. 64 3 10.00 0.900 0.081 7 8/26/04 7:00 0.178 3. 4 2 4 5.00 0.800 0.176 5 1/05/05 16:00 0.176 3.39 5 3.00 0.667 0 .114 6 1/19/06 3:00 0 .114 2.68 6 2.00 0.500 0. 2 91 3 11/24/06 8:00 0.081 1.73 7 1. 30 0.231 0.877 1 1/09/08 11: 00 0. 071 1. 36 8 1.10 0.091 Computed Peaks 0.689 5.29 50.00 0.980 Flow Frequency Analysis Time Series File:dsout.tsf Project Location:Landsburg 13167. !'Hartin Adnal Pond /. ---Annual Peak Flow Rates--------flow frequency Analysis------- 1. . !:low Rate· Rank Time of Peak --Peaks Rank Return Prob (CFS) (CfS) Period 0.318 2 2/09/01 20:00 0.903 1 100.00 0.990 0.076 8 11/04/01 23:00 0.318 2 25.00 0. 960 0. 18 4 4 3/01/03 5:00 0.300 3 10.00 0.900 0.100 7 8/26/04 1:00 0. 184 4 5.00 0.800 0.182 5 1/05/05 14: 00 0.182 5 3.00 0.667 0. 114 6 1/19/06 3:00 0. 114 6 2.00 0.500 0.300 3 11/24 /06 7:00 0.100 7 1. 30 0.231 0.903 1 1/09/08 11: 00 0.076 8 l.. 10 0.091 Computed Peaks 0.708 50.00 0.980 Flow Duration from Time Series File: rdout. tsf Cutoff Count Frequency CDF Exceedence Probability CFS % % % 0.004 34011 55.465 55.465 44.535 0.445E+OO 0. 013 5228 8.526 63.991 36.009 0.360E+OO 0.022 4 92 5 8.032 72. 022 27.978 0.280E+OO 0.031 4479 7.304 79.326 20.674 0.207E+OO 0.040 3876 6.321 85.647 14.353 0.144E+OO 0.048 2962 4.830 90.478 9.522 0.952E-01 0.057 1952 3.183 93. 661 6.339 0.634E-01 0.066 1352 2.205 95.866 4.134 0.413E-01 0.075 740 1.207 97. 07 3 2. 927 0.293E-01 0.083 621 1. 013 98.085 1.915 0. l 91E-01 i. 0.092 4 38 0.714 98.800 1. 200 0.120E-01 0.101 305 0. 4 97 99.297 0.703 0.703E-02 0 .110 45 0.073 99. 371 0. 629 0.629E-02 0 .118 18 0.029 99.400 0.600 0.600E-02 0.127 17 0.028 99.428 0. 572 0.572E-02 0. 136 43 0.070 99. 4 98 0.502 0.502E-02 0. 14 5 53 0.086 99.584 0. 416 0.416E-02 0. 154 36 0.059 99. 643 o:357 0.357E-02 0. 162 4 5 0.073 99. 716 0.284 0.284E-02 0 .171 35 0.057 99.773 0.227 0.227E-02 0.180 35 0.057 99.830 0 .170 0.170E-02 0.189 13 0.021 99.852 0. 14 8 0.148E-02 0.197 13 0.021 99.873 0.127 0.127E-02 0.206 5 0.008 99.881 0.119 0. ll 9E-02 0.215 1 0.002 99.883 0. 117 0.117E-02 0.224 3 0.005 99.887 0 .113 0.113E-02 0.232 6 0.010 99.897 0.103 0.103E-02 0.241 4 0.007 99.904 0.096 0. 962E-03 0.250 7 0. 011 99.915 0.085 0.848E-03 0.259 13 0.021 99.936 0. 064 0.636E-03 0.268 9 0.015 99.951 0.049 0. 489E-03 0.276 7 0. 011 99.962 0.038 0.375E-03 0.285 6 0.010 99.972 0.028 0. 277E-03 0.294 10 0.016 99.989 0. Oll 0.114E-03 0.303 5 0.008 99.997 0.003 0.326E-04 0.311 l 0.002 99.998 0.002 0.163E-04 Flow Duration from Time Series file :dsout. tsf 1 •• Cutoff Count Frequency CDF Exceedence Probability CfS % % % 0.005 33962 55.385 55.385 44.615 0.446E+OO 0.013 5104 8.324 63.708 36. 292 0.363E+OO 0.022 4902 7.994 71.703 28.297 0.283E+OO Jllartin Actual Pond i. 0.031 4497 7.334 79.036 20.964 0.210E+OO 0.040 3836 6.256 85. 2 92 14.708 0. 147E+OO 0.049 2979 4.858 90.150 9.850 0.985E-01 0.058 2055 3.351 93.501 6.499 0.650E-01 0.067 1370 2.234 95.735 4.265 0.426E-01 0.076 753 1.228 96. 963 3.037 0.304E-01 0.085 620 1. 011 97. 97 5 2.025 0.203E-01 0. 094 479 0.781 98.756 1.244 0.124E-01 0. 103 2 98 0. 4 8 6 99.242 0.758 0.758E-02 0.112 70 0. 114 99.356 0.644 0.644E-02 0.120 25 0.041 99.397 0.603 0.603E-02 0 .129 22 0.036 99. 4 32 0.568 0. 568E-02 0.138 40 0.065 99. 4 98 0.502 0.502E-02 0.147 52 0.085 99.583 0. 417 0.417E-02 0 .156 33 0.054 99.636 0. 364 0.364E-02 0. 165 42 0.068 99.705 0. 295 0.295E-02 0.174 40 0.065 99.770 0.230 0.230E-02 0. 183 36 0.059 99.829 0. 171 0.171E-02 0. 192 11 0.018 99.847 0.153 0.153E-02 0.201 14 0.023 99.870 0.130 0. lJOE-02 0.210 6 0.010 99.879 0.121 0.121E-02 0.219 1 0.002 99.881 0 .119 0. 119E-02 0.227 5 0.008 99.889 0. 111 0. 11 lE-02 0.236 4 0.007 99. 8 96 0. 104 0.104E-02 0.245 5 0.008 99.904 0.096 0. 962E-03 0.254 6 0.010 99.914 0.086 0.864E-03 0.263 12 0.020 99.933 0.067 0.669E-03 0.272 10 0.016 99.949 0.051 0.506E-03 • 0.281 6 0.010 99.959 0.041 0.408E-03 0.290 8 0. 013 99.972 0.028 0.277E-03 0.299 7 0. 011 99.984 0.016 0.163E-03 0. 308 6 0.010 99.993 0.007 0.652E-04 0.317 3 0.005 99.998 0.002 0.163E-04 • • • • u,snNC SfOR!,1 5\'SffJ./ ro BC 11010\fll ' f a f f f ,j ... I $ SCALE: 1 • = 20' • • • -c-- I' I I I 'CH BASIN LOCAT10N AND CUVAnON rABt.C ------- ~~w 00. J.1.00' Rr (RO A) '""' : '"" ,a ,u2 Rt '.-D1f1CC110NAL \ GRA'fC 1$1.91 ; 448.'4 .,-------Jd /di lf DIRtC110NAL ""~ I.II f4t..J2 ... ., *· ..... c,,,i .. , .. ........ ~ $ 'M"l,xlaSi"ra N~7.51 C 16H10.S.6' ""' .,.,. ,2· ,C 442.!JO $ lfu."'f,x~iiA!"ra N 509,n.a, £ 16440,F.OJ ""'.,.., 12" 1£ Ul,/8 1$" 1£ UI." (CONTRACTOR n, K'/flf"r W IC} C..,,~ot<on Colo __ o.,, 0 20011 11!1...0 ASSOCIA !'ES \Zl1211--Nla ---'25.821-"""I oll!i.Uu•1• IOQ.<Um,lllol .. -- ~JMM Di.Bili.I '111ST stJBYmiL U.11: 2/IJ/rJl SCAll: -..:1·-a· igr,, ... ,. STW' llf YALII ll1fWS SICND AIQI MnD 108 HO. 04-257 9.12 • • • . -ac (ff'Vl 010S 111111 lulN(U/9a. rs 4HD PfKJWJC tOCIOHC W(.CNAHISll,I (JI/IN PAa.00<) ()H LOllVI' Pin lOCAll" lADOf"R SITT'S /JfRfClt Y K!.O,. ,. 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CB 16 OVERFLOW STRUCTURE NOT TO SCAU" Permanent Surface Water Control Pond S1 Stormwater Pond ... ----- Thll pond Is In our can. _II ___ ....__ ...... _ ......,. ... --....... .---;,, ,,,,_....,_"'9-..Thb"" ........... -.. .... -. ..... _,. ... ....,"""" - ' ·-h-~---·-1 -....-.. -~ ..... 0.~olll,l.nl-.. f-_ .. _""'00. , .... _ ..... _ RCQ.MED U.C IQ.UM£: ,~1,0 CF i Ai'OMf.lfO Ulf' KllM: XX.XXX CF RCQC.IIE> IIO KUolilC; r•,f«I CF ~ IIO IQ.UlolF: XX.XXX CF --+-L---------.J.'OAO ITYPJ s: ~ Sig" !p;;Hl<ollono· C si.o •~-,.ode t,y 2•· hkih Molorlal .125mlo g~,goat,,Jm"'""' Foco Non rellctlvo llin)'I O< 3 coolJ ouldoo< ..,..,,.. l•P'•i•~I ~ ~::•~,. :~::;::i .. -:::ai.t::"·°''"l'i''""' ~ Of £JOS'/1NG Uf'l.111{S SHo. IS APPROXIIIA11' Typo foco Holvollclo oondM>Od Till• J". svl:>~llo 1-\l"I". Te,t 1" 4Y NOr BC ACCU,Alf OR AU. .wQ.1191€. 1r IS 1HC a.,~.. 0vt .. 1>on1or 11s·-· 11<,1.""' ~-..,,,. ,,,·, ,n, .. 1 ,-:i,.. 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Q lQOII fflU,0 ASSOCIA TU U5.921.&owa Ol5.&21_,_ IOO .... .O!'M ... _ -- Pli)fcT'tl'mM iJtiilfltf rum st1Hm.ll. nan, 2/16/0' $Ci.LI: -.,,..;,, ""'"'/" na, !IOT ¥WD VNLISS tlCND 1.11D DITIO 101 HO. 04-257 Sll!l'I NO. 10~12 ( f SECTION 3.2 RUNOFF CO MPUTATION AND ANAL YSIS METH ODS FIGURE 3 .2.2.A RAINFALL REGIONS AND REGIONAL SCALE FACTORS ST 1 .1 ST1.0 Rainfall Regions and Regional Scale Factors D rr.z:1 Incorporated AreaQ ..... Rl ver/LakeO ( W-Major RoadO D 1/2 4/2 00 5 LA 1.0 LA 1.2 N COU NT• ' Kl O CO UN T 2005 Su rfa ce Water Design Manual 3-22 3.2.2 KCRTS/RUNOFF FILES METHOD-GENERATING TIME SERIES re . . . ::·. ~ .... ·. ,_·',\'.'>:.' .. ·->~>: -·:··:.:-.-. ,, _.: .. :·:··'"_,;'::·· _;·\: '' . TABLE 3;2.2.B EQUlV!<\LJi]NCl!>BETWEl!lN SC$ SOiL TYfES AND KCittS SOJL TYPES . '-. ,. : ... :_ :_' . . ' , ·,: ·.;:.·:,, ".' .. ·: ,• . ,·-..... :·· ... . . .. ·. . SCS Soll Type scs KCRTS Soll Notes Hydrologlc Soll Group Group . AldelVIOOd (AaB,Aae,AoD e TIii ~ Arents, Alde!Vlooa Material AmB, Amel e 1111 Arents, Everett Material (An B. Outwash 1 Beau site (Bee BeD, BeF\ e TIii 2 Belllnaham (Bh) D TIii 3 Brisco! Br) D TIii 3 Buckley Bu) D Till 4 Ea11mont IEal D TIii 3 Edgewlck (Ed) e Till 3 Everett EvB, Eve, EvD, Ewe) A/B Outwaah 1 Indianola (lne, lnA, lnD) A Outwaah 1 Kll&Bo IKDB, Kl>(;, KpD) e Tffl Klaus (Kse) e Outwash 1 Naillon NeC) A Outwash 1 Newbern (Ng) B TIii 3 Nooksack (Nk) C TIii 3 Norma !Nol D TIii 3 Orcas !Orl D WeUand • Oridla (Osl D TIii 3 Ovall <OvC, OvD, OvFl C TIii 2 Pllchuck (Pc) C TIii 3 Puoet (Pu) D TIii 3 Puv&lluo (Pvl B TIii 3 Raonar RaC,RaD,Rae,RaE) B Outwash 1 Renton Re) D TIii 3 Salal (Sa) C TIii 3 Sammamish (Sh) D TIii 3 Seattle (Skl D Wetland Shalcar (Sm) D TIii 3 SI (Sn) C TIii 3 Snohomish (So, Sr) D TIii 3 Sultan Sul C Till 3 Tukwila nu) D Till 3 Woodinville (Wol D TIii 3 Notes: 1. Where outwash soils are saturated or underlain at shallow depth (<5 feet) by glacial till, they should be treated as till soils. 2. These are bedrock soils, but calibration of HSPF by King County DNRP shows bedrock soils to have similar hydrologlc response to till soils. 3. These are alluvial soils, some of which are underlain by glacial till or have a seasonally high waler table. In the absence of detailed study, these soils should be treated as 1111 solls. 4 . Buckley soils are fom,ed on lhe low-permeablllty Osceola mudflow. Hydrologlc response Is assumed to be similar to lhat of 1111 soils. • '. 2005 Surface Waler Design Manual l/24/200l 3·2S 3 2.2 KCRTS/RUNOFF FILES METHOD-GENERATING TIME SERIES r4t TABLE 3,2.2.e EQurv*LtNci aE-rWEl!iN scs stin. tvfiis ANb.i<:dRts soi£ TY<PEs . . . ,. -. ' .. : . :, :_ . . -. . . . ·. : .. ~i··,' ... ' : .. : -· . ' ·. ·' .:··. . ·, . . . . . . SCS Soll Type scs KCRTS Soll Notes Hydrologlc Group Soll Group Alderwood (AgB, AoC, AoD) C Till ~ Arents, ,.,ae,wooa Material ,,.mtl, AmLI C 1111 Arents, Everett Material (An\ B. Outwash 1 Beauslle BeC, BaD, BeF) C Till 2 Belllnaham Bhl D Till 3 Brisco! 1Brl D Till 3 Buckley (Bu l D Till 4 Ear1mont Ea) D TIii 3 Edaewlck Edl C TIii 3 Everett CEvB. EvC, EvD, EwCI A/B Outwaah 1 Indianola (lnC, lnA, lnD\ A Outwash 1 MAIID 11\DB. KDC, KoDl e TUI Klaus KsC) C Outwash 1 Nellton I Nee I A Outwash 1 Newbern (Nol B TIii 3 Nooksack (Nkl e TIii 3 Norma 'No D TIii 3 Orcas Or) D Wetland • Oltdla Os D TIii 3 Ovall (OvC, OvD, OvF) e TIii 2 Plk:huck Pc) e TIii 3 Puoat Pu) D TIii 3 PlM>IIUD (Pv) B TIii 3 RAnriar CRae, RaD, Rae. RaEl B Outwash 1 Renton /Rel D Till 3 Salal (Sal e TIii 3 Sammamish (Sh) D TIii 3 Seattle Ski D Wetland Shalcar Sm) D Till 3 SI (Sn C TIii 3 Snohomish (So, Sr) D TIii 3 Sultan (Su) C TIii 3 Tukwila < 1 u l D TIii 3 Woodinville IWo\ D TIii 3 Notes: 1. Where outwash soils are saturated or underlain at shallow depth ( <5 feet) by glacial 1111, they should be treated as till solls. 2. These are bedrock soils, but callbrallon of HSPF by King County DNRP shows bedrock soils to · have similar hydrologlc response to 1111 soils. 3. These are alluvial soils, some of which are underlain by glaclsl tlll or have a seasonally high water table. In the absence of detailed study, these solls should be treated as 1111 soils. 4 . Buckley soils are formed on the low-permeablllty Osceola mudflow. Hydrologlc response Is •• assumed to be similar to that or 1111 soils. \ '· 2005 Surface Waler Design Manual 1/24/2005 3-2S ··-··· .---1. ---- fl ===------------ ;./ rwers Legend ----pl&6 o- aapholn.&id =-• 9/14/2006 10:14 AM f"\11~~ WUNI Y )LAL.-) ~l<\/1::-Y LEtJENl>. ,PARTMEN1 OF AGRICULTURE NSERVAnoN SERVICE SOIL LEGEND Th• flrll coplrol 1•11" h ti,,. h,ltlol on• o, tM 10!1 l'IClrne. A ucon.d capitol latte,, A, B, C, 0, E, or F, locllcolu lh. dou of ,lo~. Symbol, wl!hovl o 1lop. la!!u ort 1ho1• ol naorly level ,0111. sYMBOL ... ~ .. ( AoO Al<F AoB Ao( A, e.c e.o ... ... "' "" Cb •• •• ••• E.C .. 0 E-c "' In( '"° ... KpC KFD K,C ... Ho( .. "' •• (> 0. 0.( o.o 0.F " .... .. Py Roe A•O RdC AdE •• ... NAIIE Alderwood gravelly HIidy loorn, 0 to 6 percent tlopu Akl.rwood 9,ov,lly Hl'ldy loaffl, 610 15 ,,....Ont tlopt,1 Alcf.n,,.oocforo.,.lly aondy loom, IS to 30 ,-,uni ,lope, A~ood 9nd KU1op toll,, wry slffp A11nt1, Aldt-""'ood inote,lol, 0 to 6 pt,f"Cent 1lope1 • At,n11, Ald.fwood Matfflol, 6 to 15 pwcent 1lope1 • A,,n1,, Evtrttl fflOlet'lol • S.0111111 g,ovelly Mndy loan,, 6 lo IS per.;-,lope, &eou,11, g,o.,..11.,. 1oi,,dy loom, 15 10 30 ~cent 1lope1 S.ou1lt1 9"1-lly 1ondy loo,,.., ,ti() to 75 pe,i;1n1 1 lop,o1 a..11,,.. ...... llh ._ ... BrLKof 1th loam Buddey ,1 h loam (001101 Beoc: ... , Eorlm0tl1 11!1 loa.., e..,.,d, ,.,.. Mndy •- e .... ,.11 f'oY•lly ~ loo111, 0 lo S ,-rc•nt , lopu e-tt ,.. ..... 11y H""' *""· S to IS f*'C..,I ,lope, e ....... u ..... Uy lonely 1-. IS to 30 ,...nnt 1lop11 e .................. oo4 .......... ,. •°"'*r 1oo .... 6 IO IS pernn1 .,~, lr>dklnoki loa"'Y fl,....,..., 0 to 41 pa,,c ... , tlopu lndiOO'\Oki loa"'Y fl,.. 1ond, 41 lo IS p..-co,., , lopn lndl-Jo lo,,"'Y f1,.. tond, IS 10 30 ,.11:.,., ,lope, KltMp 1111 too., 2 to 8 ,...c_ 15op.1 K1t90p 1111 loa,., 8 to 15 p,t,re"91 ,lope, Kll1<tp ,11r loo•, IS to 30 p,tf'C ........ Kt...,. 9,0.,.lly I-my.....,, 6 to IS ptf"COnl 1lop,u Mi .. ,d olluvlol kind N1lhon ,., .. )' g,o.,.lly loomy 111•.d. '110 IS p,1rc,,,, •'"IH• ~9,1l1loom Nooksoclt 11ih loom Nw...., 1on,dy loom Oreo, P'l'Ot °"'"'° .... ,_ ... O..ll 9ro,.,.tly 1-... 0 to IS po,rc...,. 1lope• Ovoll ,..o•oll, loa111, IS to 2S ,..-Cini 1/op11 0.-011 9rov1lly 1-m, 41() lo 75 ptf"nnt 1lop11 Pllchvclt loolft)' flna 1ond Plkhvclt lint 1ondy loom Pva•t I llty doy loom Pvyallvp llnt 1ondy loo"" Rognor fine tondy 100111, 610 15 PffCl1'11lop11 Aognor fin. tondy looM, 15 to 25 pe1·un1 1lopt1 Rotnot•lndlonolo 01aock11lon, tlo,lng • Rognor,lndlonolo onoelotlon, mode«tttlr 11tep • R1nton 111! loon, RlvOfwoth So Solol 1111 loam Sh Somtnomhh 1Ht loam ik Seottlt mU(I,. Sm Sholcat 1t1vck Sn SI tlh loom So Sriohon'lith 11h loom Si St,ohoml1h 1fh loom, thlc:k 1urfoc, vorlonl Su S\llton 1111 loom .-l\l Tvkwllo invck w, Woodlnvlll, 11h loom • The compotlllon of, ...... vnlh 11 ITICft vorloblo lhor, 1h01 of 1h, oth.u In the o"o, bvt II hoi bun cor,trollod well enovvh to lnterpr,t for 1h, tltptCltd VII of lh. loll,. KING COUNTY A.REA, WASHINGTI ,,....,,+.;" "' ,o ... '1• ,,-.. , .... ·-....... .. Town1hip lint. no• To,,~•. o.l . .....,,.,,. ~· Ho,i10.,tol t0to1rol 11, v,nicol cMrrol stotl Othtr l1ttov1roblt • Ch,clttd 1p,g1 1l•voll, Uncl,1(ktd 1po1 eltvc 64.1 WETPONDS-BASIC AND LARGE-,\/[THODSOFA;VAUS!S FIGURE 6.4.1.A PRECIPITATION FOR MEAN ANNUAL STORM IN INCHES (FEET) ST 1.1 [ZZ) Incorporated Area ...... River/Lake Major Road 0.47" (0.039') 0.47" (0.039') NOTE: Areas east ot the easternmost lsopluvlal should use 0.65 Inches unless ralnfal1 data la avallable for the locatlon al Interest 2t The mean annual storm !a a conceptual 81orm lound by dividing tht annual pl'lcipllallon by tht 101al number ot 81orm events per year LA 1.0 LA 1.2 (? result, generates large amounts of runoff. For this application, till soil types include Buckley and bedrock soils, and alluvial and outwash soils thafhave a seasonally high water table or are underlain at a shallow depth (less than 5 feet) by glacial till. U.S. Soil Conservation Service (SCS) hydrologic soil groups that are classified as till soils include a few B, most C, and all D soils. See Chapter 3 for classification of specific SCS soil types. 2005 Surface Water Design Manual 6-71 1/24/2005 • Martin Pond Volumes 04-257 19 February 08 438.00 368 438.50 429 0 0 440.00 611 780 780 3222 0 442.00 2184 2795 3575 4767 7989 442.50 2438 1156 4730 5110 2469 Total Dead Storage Required 14,640 Total Dead Storage Provided 15,189 Live Storage sr-~T ''n l!lfA'i:":fill I • i;!Yl;IJQ •·', .. , .e ,. ~lili~ ·1·r.·~-,c~w-,, m ,,~~:i,, /IQ .~ooei !P 1 ~8:Jli ''~{(ft~()l~]l'ffll/lt~~·t11t~~~ 1&'f .. _, ·-· t .. Jti. _., U $.r...,~,.,r r11~l'ffi'c.illi! 'f{!ffl •• J'i' ' .. fl,, ~ 'µ; : < . i.'ifl,I\ I 442.50 7548 0 0 444.00 6250 10349 10349 446.00 11466 17716 28065 • 448.00 13636 25102 53167 Total Live Storage Required 45,190 0 7989 10458 3.7 % extra volume Total Live Storage Provided 53, 167 17. 7 % extra volume • Martin Property-Technical Information Report • 5 CONVEYANCE SYSTEM ANALYSIS & DESIGN • The onsite and offsite conveyance systems will be analyzed using the KCBW program. Refer to the Catch Basin Tributary Area Exhibit and KCBW print out report located at the end of this section to aid in the following discussion. The conveyance system will be designed in accordance with the 2005 King County Surface Water Design Manual (KCSWDM) to provide sufficient capacity to convey and contain, at minimum, the 25-year peak flow assuming developed conditions for onsite tributary areas and existing conditions for any offsite tributary areas. The system has been analyzed during the I 00-year design storm event to show that overtopping will not create or aggravate a "severe flooding problem" or "severe erosion problem". The King County Back Water program is used to calculate the hydraulic grade line at each catch basin. The KCBW program sums the flows tributary to each reach (pipe) and then performs a standard step backwater analysis on the network. The steady state energy equation (Bernoulli's equation) is used along each reach in the network. The friction slope is calculated by averaging Manning's equation at the upstream and downstream ends of the pipe. The hydraulic grade line is calculated from downstream to upstream. 5. 1 Onsite Conveyance All conveyance pipes have been designed to convey l 00-year peak flows determined using the rational method. The rational method for sizing conveyance systems was used on all tributary areas since the entire site is less than IO acres per table 3.2 of the 2005 KCSWDM The area tributary to each catch basin has been calculated. The flows to each catch basin are entered into KCBW in order to show the system safely conveys the 100-year flows. 5.2 Rational Method Flow rates (Q) The traditional Rational Method equation (Equation 3-1, KCSWDM) was used for calculating the storm water flows that are tributary to each catch basin. See the Catch Basin Tributary Area ·Exhibit at the end of this section . QR= CIRA February 19, 2008 Job#04-257 Page 5-1 Martin Property-Technical Information Report QR= peak flow (cfs) for a storm of return frequency R C = estimated runoff coefficient JR = peak rainfall intensity (in/hr) for a storm of return frequency R A = drainage sub-basin area (acres) R = return frequency of design storm (100-year for this report) As mentioned earlier in this report, the I 00-year, 24-hour return frequency design storm event was used for the conveyance system calculations. 5.3 Peak Rainfall Intensity (/100) 1100 = (P1oo)(i100) P 100 = the total precipitation at the project site for the I 00-yr 24-hour duration storm event for the given return frequency = 3. 96 inches (See figure 3 .2.1 D at the end of this section) 1100 = the unit peak rainfall intensity factor i100= (a1oo)(Tc)"h100 Tc = time of concentration (minutes); the actual Tc is less than the minimum 6.3 minutes so 6.3 minutes will be used. a 100 = Coefficient from KCSWDM Table 3.2.1.B = 2.61 b100= Coefficient from KCSWDM Table 3.2.1.B = 0.63 • ilOo = (a10o)(TcrblOO = (2.61)(6.3)"0 ·63 = 0.819 1100 = (P1oo)(i 100) = (3.96)(0.8 I 9) = 3 .24 • 5.4 Runoff Coefficients (CJ Runoff coefficients were used in the Rational Method calculations of flow. C-values used to represent the different types of land cover for the developed condition were: C1awn of 0.25 (for all landscaped areas), Cpavement of 0.90 (for all impervious surfaces, i.e. roads, sidewalks, roofs, driveways, etc.). The C-value used for the lot area was 0.60 per Table 3.2. I .A of the KCSWDM. Ctawn = 0.25 Cpavement = 0.90 C1o, = 0.60 February 19, 2008 Job #04-257 Page 5-2 • • Martin Property-Technical Information Report Rational Method Calculations and Q Ratios Area (Acres) Weighted CB# Open 1100 Q (cfs) Q Q Lot Space Pavement Total Cc Sum Ratio 13 0.05 0.05 3.24 0.90 0.15 0.15 12 0.04 0.04 3.24 0.90 0.12 0.26 0.800 14 0.26 11 0.04 0.04 3.24 0.90 0.12 0.12 10 0.03 0.03 3.24 0.90 0.09 0.20 0.750 9 0.00 0.00 3.24 0.00 0.00 0.20 0.000 8 0.15 0.04 0.19 3.24 0.66 0.41 0.61 2.000 RGO 0.61 7 0.22 0.05 0.27 3.24 0.66 0.57 0.57 6 0.04 0.04 3.24 0.90 0.12 0.69 0.203 1 0.69 5 0.70 0.19 0.02 0.91 3.24 0.53 1.57 1.57 5A 0.59 0.23 0.82 3.24 0.43 1.15 2.72 0.730 4 0.73 0.07 0.80 3.24 0.63 1.62 3.20 3 0.52 0.06 0.58 3.24 0.63 1.19 3.91 1.032 2 0.05 0.05 3.24 0.90 0.15 4.05 0.037 1 0.00 3.24 0.00 0.69 4.74 0.170 1 4.74 5.5 Freeboard Table The onsite systems draining to the pond are designed with tail water elevation at the maximum water surface elevation of the pond (448.00). The system draining to the rain garden is designed with tail water elevation at the overflow elevation (449.00) in the rain garden. The bypass system discharges to the existing conveyance system in the neighboring Shamrock Heights development. A new catch basin (CB 14) will be the connection point between the two systems and will be built on the existing pipe line in the Shamrock development. The tailwater elevation used for CB 14 will be the hydraulic grade line elevation from the upstream catch basin (CB S-16) in the Shamrock development. By using the upstream catch basin, the tailwater elevation (445.26) of CB 14 is a conservative estimate. The conveyance calculations for the Shamrock development can be found in Section 5 of the Shamrock Technical Information Report, dated March I 0, 2004. The freeboard table below shows that the tight line conveyance system is designed to safely convey the I 00-year storm event without overtopping. February 19, 2008 Job #04-257 Page 5-3 Martin Property-Technical Information Report Rim Hydraulic • CB# Elevation Grade line Freeboard 1 452.00 450.28 1.72 2 452.34 451.00 1.34 3 454.67 452.75 1.92 4 454.69 452.75 1.94 5A 456.38 453.02 3.36 5 456.90 453.05 3.85 6 451.91 450.32 1.59 7 451.91 450.33 1.58 8 452.06 449.03 3.03 9 453.94 449.05 4.89 10 452.28 449.37 2.91 11 452.28 449.44 2.84 12 446.62 444.82 1.80 13 446.71 445.30 1.41 • February 19, 2008 Page 5-4 Job #04-257 · FIGURE 3.2.1.D 100-YEAH 24-IIOUR ISOPLUVIALS • WESTERN KING COUNTY 100-Year 24-Hour Precipitation In Inches 2005 Surface Water Design Manual r 0 3-17 / 32.1 RATIONAL METHOD II\ "' ·o I /24/2005 ~ 0 \ ' _, .,--.. I _, SCALE: 1" = 60' CB 74 CB 73 1 0.05 AC 0. 7§ CFS '- I "' I I I '"---i_ _ --I I__ I ___ _ ~---- I I i --,--I 1/ I i / I I I I I I I ---?~~ l:: .. ~ "' .Q. l 0 { " ~ ~ ~ t..; <rt ~ ., 5 .. ,q; :2 13 ~ "' ""' ~ ... :, C) ~-O(X) .J I.) ~~ ., ... ., C) ~:,. ~~ ~~ ""' ~ ... :, C) s~ ;~ "'"' """' .c:: ... 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' ' ' I ~ '\ : !\ I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I \I I t l I \ I I \1 I I \ I I I I I I ',i \.J \ I -1 I ,, I \ I \ \ \' ~_L ____ _ I \ \ ) I r r' I --,·, I 1._ __ J r--.., .J L., I I I I J ) I r -_J _, ---I --------------------, I I I I r-_, L-, I, 1 rJ L-~ --------------1---, I I I UPSTR/f AM ARE. TO CB 15A : 0.82 At' 0.69 C[' S I __ I r _, I I r _, I I I I : I '----- .-----, I I ~ ~200 I ~ ~ ~ :s ~ ~ ~ ~ TRI AD ~sso c I I I ~ I I I I I I L I I I I I I I i I I I I I I r I I I I I I f- - /T.mw. ~ 12112 1 tsn 1we. NE ICHund,, WA NOM-et2t 425.821.M48 425.12U411 ,- too.41Ufl51111111N --• <! C) .... <., ),.. ~ ti) ..... ~ ,q l.lJ Q:; ,q ::,... Q:; ,q I---~ Q:; I- ~ ffi ~ 0.. a.. I-~ C) -~ ct: ltl :i: ~ Q.. )( Lu .... ~~ ~~ ~ ct: ~ :,.: .... § C) <..) <., ~ ,.. ~ l;; ~ ~ t;; !:I !:I e le! ~ r::. §= fi<l<l<l<l<l<J<)< ~~"':; --~ NDJtcrSlllffl =, 'r,;,caalN"'E~-ER-'"''---- iiiiillii UliDSCAPt ARCliiTl'tt nasr Sll1l MmAL IIATI: SOU: -..: 1·-so· l'ffla llA FINAL TIR SrAllP Kar YWD UNI.ISS SKm> AHt Do\11D -,. ~o ,. ~o. 04-257 -- SIITI SIITI NO. 1 or 1 ) - • • • BACKWATER COMPUTER PROGRAM FOR PIPES Pipe data from file:pout-5.bwp Surcharge condition at intermediate junctions Tailwater Elevation:448. feet Discharge Range:4.74 to 4.74 Step of 1. [cfs] Overflow Elevation:456.9 feet Weir:NONE Upstream Velocity:3. feet/sec PIPE NO. 1: 117 LF -12 11 CP @ OVERFLOW-EL: 453.00 5.00% OUTLET: 440.50 INLET: 446.35 INTYP: 5 JUNC NO. 1: BEND: 10 DEG DIA/WIDTH: 4.0 Q-RATIO: 0.17 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 4.74 PIPE NO. 2: JUNC NO. 2: 3.93 450.28 * 0.012 0.91 0.53 7.50 7.50 3.42 3. 93 1. 76 20 LF -12"CP @ OVERFLOW-EL: 452.34 5.70% OUTLET: 446.35 INLET: 447.49 INTYP: 5 BEND: 60 DEG DIA/WIDTH: 2.0 Q-RATIO: 0.04 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 4.05 PIPE NO. 3: JUNC NO. 3: 3.51 451.00 * 0.012 0.86 0.47 3.93 3.93 3.02 3.51 1. 57 116 LF -12 1'CP @ OVERFLOW-EL: 454.67 2.96% OUTLET: 447.49 INLET: 450.92 INTYP: 5 BEND: 30 DEG DIA/WIDTH: 2.0 Q-RATIO: 1.03 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 3.91 PIPE NO. 4: JUNC NO. 4: 1.83 452.75 * 0.012 0.84 0.56 3.51 3.51 1.27 1. 83 1.62 61 LF -12"CP @ 1.25% OVERFLOW-EL: 456.38 BEND: OUTLET: 450.92 INLET: 451.68 INTYP: 5 0 DEG DIA/WIDTH: 2.0 Q-RATIO: 0.73 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 1.92 1.34 453.02 * 0.012 0.60 0.47 1.83 1.83 1.22 1.34 0.87 PIPE NO. 5: 25 LF -12 11 CP @ 1.28% OUTLET: 451.68 INLET: 452.00 INTYP: 5 Q(CFS) HW (FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 1.11 1. 05 453.05 * 0.012 0.45 0.35 1.34 1.34 1.05 0. 96 0. 4 9 • • • BACKWATER COMPUTER PROGRAM FOR PIPES Pipe data from file:7-1.bwp Surcharge condition at intermediate junctions Tailwater Elevation:450.28 feet Discharge Range,0.69 to 0.69 Step of 1. [cfs] Overflow Elevation:451.91 feet Weir:NONE Upstream Velocity:3. feet/sec PIPE NO. 1: 58 LF -12''CP @ OVERFLOW-EL: 451.91 3.78% OUTLET: 446.35 INLET: 448.54 INTYP: 5 JUNC NO. L BEND: 90 DEG DIA/WIDTH: 2.0 Q-RATIO: 0.20 Q (CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.69 1.78 450.32 * 0.012 0.35 0.21 3.93 3.93 1.76 1.78 0.47 PIPE NO. 2: 28 LF -12"CP @ 1.00% OUTLET: 448.54 INLET: 448.82 INTYP: 5 Q (CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.57 1. 51 450.33 * 0.012 0.32 0.27 1.78 1.78 1.51 BACKWATER COMPUTER PROGRAM FOR PIPES Pipe data from file:13-14.bwp Surcharge condition at intermediate junctions Tailwater Elevation:445.26 feet Discharge Range:0.26 to 0.26 Step of 1. [cfs] Overflow Elevation:446.71 feet Weir:NONE Upstream Velocity:3. feet/sec 1. 38 0.29 PIPE NO. 1: 16 LF -12"CP @ 14.69% OUTLET: 442.30 INLET: 444.65 INTYP: 5 JUNC NO. 1: OVERFLOW-EL: 446.62 BEND: 90 DEG DIA/WIDTH: 2.0 Q-RATIO: 0.80 Q (CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.26 0.62 445.27 * 0.012 0.21 0.10 2.96 2.96 0.61 0.62 o. 21 PIPE NO. 2: 26 LF -8 11 CP @ 0.62% OUTLET: 444.98 INLET: 445.14 INTYP: 5 Q (CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* o .14 0.18 445.32 * 0.012 0.18 0.17 0.29 0.29 0.18 ***** 0.17 • • • BACKWATER COMPUTER PROGRAM FOR PIPES Pipe data from file:rout-11.bwp Surcharge condition at intermediate junctions Tailwater Elevation:449. feet Discharge Range,0.61 to 0.61 Step of 1. [cfs) Overflow Elevation,452.28 feet Weir,NONE Upstream Velocity:3. feet/sec PIPE NO. L JUNC NO. 1, 43 LF -12''CP @ 0.601 OVERFLOW-EL, 452.06 BEND, OUTLET, 447.93 INLET, 448.19 INTYP, 5 0 DEG DIA/WIDTH, 2.0 Q-RATIO, 2.00 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.61 PIPE NO. 2, JUNC NO. 2, 0.84 449.03 * 0.012 0.33 0.31 1.07 1.07 0.82 0.84 0.45 79 LF -12''CP @ OVERFLOW-EL, 453.94 0.591 OUTLET, 448.19 INLET, 448.66 INTYP, 5 BEND, 90 DEG DIA/WIDTH, 4.0 Q-RATIO, 0.00 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.20 PIPE NO. 3, JUNC NO. 3, 0.39 449.05 * 0.012 0.19 0.18 0.84 0.84 0.38 0.39 0.25 73 LF -12"CP @ OVERFLOW-EL, 452.28 0.631 OUTLET, 448.66 INLET, 449.12 INTYP, 5 BEND, 90 DEG DIA/WIDTH, 2.0 Q-RATIO, 0.75 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.20 0.25 449.37 * 0.012 0.19 0.18 o. 3 9 o_. 3 9 o. 19 ***** 0.25 PIPE NO. 4, 23 LF -12"CP @ 0.78% OUTLET, 449.12 INLET, 449.30 INTYP, 5 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.12 0.14 449.44 * 0.012 0.14 0.13 0.25 0.25 0.14 ***** 0 .13 • • Martin Property-Technical Information Report 6 SPECIAL REPORTS AND STUDIES 6.1 Geotechnica/ Report Reports are located at the end of this section. • Geotechnical Engineering Report; Associated Earth Sciences, Inc., January 27, 2005 • Reinforced Rockery Recommendations; Associated Earth Sciences, Inc., June 22, 2007 September 20, 2007 Job #04-257 /r.RMP --- Page 6-1 SUBSURFACE EXPLORATION, GEOLOGIC HAZARD, AND PRELIMINARY GEOTECHNICAL ENGINEERING REPORT MARTIN PROPERTY King County, Washington Prepared for: CamWest Development, Inc. 9720 NE 120 .. Place, Suite 100 Kirkland, Washington 98034 Prepared by: Associated Earth Sciences, Inc. 911 5•h Avenue, Suite 100 Kirkland, Washington 98033 425-827-7701 Fax: 425-827-5424 January 27, 2005 Project No. KE04710A • Marrin Property King Counp,, Washington 1.0 INTRODUCTION Subsu,jace Exploralion. Geologic Hawrd, and Preliminary Geotechnical Engineering Report Project and Site Conditions I. PROJECT AND SITE CONDITIONS This report presents the results of our subsurface exploration, geologic hazard, and preliminary geotechnical engineering study for the proposed new residential development. Our recommendations are preliminary in that project plans are still under development at the time of our exploration and preparation of this report. The project site location is shown on the Vicinity Map, Figure I. The existing site features. topography, and approximate locations of the explorations accomplished for this study are presented on the Site and Exploration Plan, Figure 2. The locations of the proposed improvements were not available at the time this report was completed. Therefore, the conclusions and recommendations contained in this report should he reviewed and modified, or verified, as necessary once project plans and details are developed. 1.1 Purpose and Scope The purpose of this study was to provide subsurface data to be used in the preliminary design of the project. Our study included a review of selected geologic literature, excavating exploration pits, and performing geologic studies to assess the type, thickness, distribution, and physical properties of the subsurface sediments and shallow ground water conditions. Preliminary geotechnical engineering studies were completed to formulate our recommendations for site preparation, site grading, house construction, drainage, and paving. This report sununarizes our current fieldwork and offers development recommendations based on our present understanding of the project. We recommend that we be allowed to review project plans prior to construction to verify that our geotechnical engineering recommendations have been correctly interpreted and incorporated into the design. Additional exploration or design modifications/review may be required to finalize project documentation. 1.2 Authorization Written authorization to proceed with this study was granted by Ms. Sara Slatten of CamWest Development, Inc. (CamWest) by means of a signed copy of our scope of work and cost proposal dated November 9, 2004. This report has been prepared for the exclusive use of Cam West and their agents for specific application to this project. Within the limitations of scope, schedule, and budget, our services have been performed in accordance with generally accepted geotechnical engineering and engineering geology practices in effect in this area at the time our report was prepared. No other warranty, express or implied, is made. J a1111ary 27, 2005 ASSOCIATED EAi/TH SCIENO:S, INC. S<illls11 -Kh047HM1 -F'rojrrnl20047101A'l:J\\I/' Page I ,--- • • Martin Property King Counly, Washington 2.0 PROJECT AND SITE DESCRIPTION Suhswface Exploratio11, Geologic Hazard, and Preliminary Geotechnical Engineering Report Project and Site Conditions This report was completed with an understanding of the project based on a preliminary plot plan with proposed exploration locations provided to us by CamWest. The plan does not show lot layouts or road locations. Site grading plans were also not available when this report was prepared. The plot plan was used as a basis for Figure 2 of this report. The project site includes one rectangular-shaped parcel currently developed as a rural residential property. The parcel is roughly 3.69 acres in overall area. A house and barn occupy the eastern portion of the parcel. The north, west, and south property lines border existing CamWest developments currently under construction. The eastern property line borders other rural residential properties. The majority of the property is covered witl1 pasture used for goat, sheep, and horse grazing. Deciduous trees are scattered throughout the property. A small ephemeral wetland exists near the west property line. Overall vertical relief across the site is approximately 24 feet. The property slopes gently to the southwest. The proposed project is anticipated to include construction of residential building lots, access roads, buried utilities, and other typical improvements. The planning for this project was in the conceptual phase at the time this report was written and details such as cut and fill areas and amounts, lot and street layouts, detention facility locations, etc. were not known. However, we assume that storm water detention facilities will be constructed in the southwest site corner or storm water will be conveyed to the adjacent CamWest development storm water facilities. 3.0 SUBSURFACE EXPLORATION Our field study included the planned excavation of nine exploration pits to gain subsurface information about the site. The exploration locations were staked in the field by CamWest during our subsurface exploration. The various types of sediments, as well as the depths where characteristics of the sediments changed, are indicated on the exploration logs presented in the Appendix. The depths indicated on the logs where conditions changed may represent gradational variations between sediment types in the field. The conclusions and recommendations presented in this report are based on the nine exploration pits completed for this study. The number, locations, and depths of the explorations were completed within site and budgetary constraints. Because of the nature of exploratory work below ground, extrapolation of subsurface conditions between field explorations is necessary. It should be noted that differing subsurface conditions may sometimes be present c.Jue lo the random nature of deposition and the alteration of topography .fa111mry 27. 2005 S{;ll/111 -KL04l/OA2 -rrojcrtJ\1{)(!47/0IKF.\\VP ASSOCIATED r:ARrll SCIENCF.S. INC Page 2 • • Martin Property King County, Washington Subsurface Exploration, Geologic Hazard, and Preliminary Geotechnical Engineering Report Project and Site Conditions by past grading and/or filling. The nature and extent of any variations between the field explorations may not become fully evident until construction. If variations are observed at that time, it may be necessary to re-evaluate specific recommendations in this report and make appropriate changes. 3 .1 Exploration Pits The exploration pits were excavated using a rubber-tired backhoe. The pits permitted direct, visual observation of subsurface conditions. Materials encountered in the exploration pits were studied and classified in the field by a geotechnical engineer from our firm. All exploration pits were backfilled immediately after examination and logging. Selected samples were then transported to our laboratory for further visual classification and testing, as necessary. 4.0 SUBSURFACE CONDITIONS Subsurface conditions at the project site were inferred from the field explorations accomplished for this study, visual reconnaissance of the site, and review of selected geologic literature. The general distribution of geologic units is shown on the field logs in the Appendix to this report. The explorations generally encountered a relatively thick sequence of topsoil and organic weathered soils over medium dense grading to very dense silty sand with gravel and cobbles interpreted as lodgement till. The on-site sediments are mapped as Vashon till deposits on the Geologic Map of King County, Washington by Booth et al., 2002. 4. I Stratigraphy Grassffopsoil A surficial layer of grass and organic topsoil was encountered at the location of each of the exploration pits. This organic layer ranged from approximately 10 to 31 inches in thickness. Due to their high organic content, these materials are not considered suitable for foundation, roadway, or slab-on-grade floor support, or for use in a structural fill. Below the organic topsoil, we encountered loose to medium dense, brown to dark brown weathered soils derived from the underlying lodgement till. This material varied across the site in thickness, density, and organic/root/wood content. It is not considered suitable for foundation support, but may be used at the discretion of the Associated Earth Sciences, Inc. (AES!) field representative for support of pavement and structural fill in areas where it contains only minor amounts of organics, and can be compacted to project specifications described in the Preliminary Design Recommendations section of this report. Because of its relatively high organic content, it should not be used as structural fill. .la111a11y 27. 2005 ASSOCIATED EARTH SC/F;NCES, INC. S(;l/fsn. K[047/01\2 -/-'mjcwl20047/0\KE\WI' Page 3 • • • Manin Property King County, Washington Vashon Lodgement Till Subswface Exploration, Geologic HG:l.ard, and Preliminary Geotechnical Engineering Repon Project and Site Conditions All of our exploration pits encountered medium dense grading to very dense, silty sand with gravel, cobbles, and occasional boulders interpreted as lodgement till. The lodgement till observed in our explorations graded from mottled gray and brown near the surface to gray and weakly to moderately cemented at depth. Lodgement till was deposited at the base of an active continental glacier and was subsequently compacted by the weight of the overlying glacial ice. Lodgement till typically possesses high strength and low compressibility attributes that are favorable for support of foundations, floor slabs, and paving with proper preparation. Lodgement till is silty and moisture-sensitive. In the presence of moisture contents above the optimum moisture content for compaction purposes, lodgement till can be easily disturbed by .vehicles and earthwork equipment. Careful management of moisture-sensitive soils, as recommended in this report, will be needed to reduce the potential for disturbance of wet lodgement till soils and costs associated with repairing disturbed soils. 4.2 Hydrology Ground water was encountered in several exploration pits at or near the contact with the weathered soil and lodgement till. Our exploration pits provide a reasonable assessment of ground water conditions that may be encountered during normal construction activities during the middle or beginning of the "wet" season. We expect that increased seepage could occur throughout the site during normal construction activities that begin towards the end of the "wet" season in April. This seepage is representative of interflow. Inter flow commonly occurs in areas underlain by lodgement till and originates as surface water that percolates down through the near-surface, relatively permeable weathered soils and becomes trapped or "perched" atop the underlying, relatively impermeable, unweathered lodgement till sediments. lnterflow is often a seasonal phenomenon. It should be noted that the presence and depth of seepage at the site may vary in response to such factors as changes in season, precipitation, and site use. 4.3 Laboratory Test Results Laboratory testing on selected soil samples from explorations was completed in accordance with report requirements typically requested by CamWest. Laboratory testing results are also included in the Appendix. Moisture content was tested in accordance with American Society for Testing and Materials (ASTM):D-2216. Table I summarizes the moisture content laboratory results. Table I also provides the depth to bearing soils identified in each test pit. .lammry 27, 2005 SGlll.m -KF./J47Jn.~l -l'rr>j('m\l(XJ4l/O\KE.\\V/' ASSOCIATE[) EARTH SCIENCES, INC Page ,1 ,. (. Martin Property King County, Washington Approximate Ground Surface Table 1 Depth to Subsurface Exploration, Geologic Hazard, and Preliminary Geotechnical Engineering Report Project and Site Conditions Approximate Bearing Soil Exploration Elevation Bearing Soil Elevation Existing Moisture Content Pit (feet) (feet) (feet) (""rcent)' EP-1 453 2 451 14.2@3' EP-2 450 2 448 14.2@ 3.5' EP-3 455 2 453 16.3@ 3' EP-4 462 3 459 14.0@3' EP-5 465 3 462 20.5 @3' EP-6 448 3 .. 5 444.5 10.9@4' EP-7 453 3 450 12.8@ 3.5' EP-8 457 2.5 454.5 15.6@ 3' EP-9 457 1.5 455.5 18.4@2.5' . All samples arc above optimum moisture content for compaction. The maximum dry density of one soil sample was determined using the modified Proctor test procedure (ASTM:D-1557). The results are as follows in Table 2. Table 2 Maximum Dry Density Optimum Moisture Content Sample Location Sample Type (pcf)'" (Percent)m EP-1@ 3' Lodoement Till 135.4 7 (I) pct = pounds per cubic foot. <2l Reported results are corrected for gravel conlent. .la11r,nry 27, 2005 ASSOCIATED /:'ART/I SCIENCES, INC . SG/Jh11 ~ !\'UJ./710:12 ~ f'roja1sl200-17/0\JU:"1WP Page 5 • e • Ma11i11 Property King County, Washington Subsuiface Exploration, Geologic Hazard, and Preliminary Geotech11ica/ Engineering Report Geologic Hazards and Mitigations II. GEOLOGIC HAZARDS AND MITIGATIONS The following discussion of potential geologic hazards is based on the geologic, slope, and shallow ground water conditions as observed and discussed herein. 5.0 SEISMIC HAZARDS AND MITIGATIONS Earthquakes occur in the Puget Lowland with great regularity. Most of these events are small and arc usually not felt by humans. However, large earthquakes do occur as evidenced by the 2001, 6.8-magnitude event; the 1965, 6.5-magnitudc event; and the 1949, 7.2-magnitude event. The 1949 earthquake appears to have been the largest in this region during recorded history and was centered in the Olympia area. Evaluation of earthquake return rates indicates that an earthquake of the magnitude between 5.5 and 6.0 is likely within a given 20-year period. Generally, there are four types of potential geologic hazards associated with large seismic events: I) surficial ground rupture; 2) seismically induced landslides; 3) liquefaction; and 4) ground motion. The potential for each of these hazards to adversely impact the proposed project is discussed below. 5. l Surficial Ground Rupture Generally, the largest earthquakes that have occurred in the Puget Sound area are sub-crustal events with epicenters ranging from 50 to 70 kilometers in depth. For this reason, no surficial faulting or earth rupture, as a result of deep, seismic activity has been documented, to date, in the area of the subject site. Therefore, it is our opinion, based on existing geologic data, that the risk of surface rupture impacting the proposed project is low. 5. 2 Seismically Induced Landslides It is our opinion that the risk of damage to the proposed structures by seismically induced landsliding is low due to gentle slope inclinations that exist on the site. 5. 3 Liquefaction Liquefaction is a temporary loss in soil shear strength that can occur when loose granular soils below the ground water table are exposed to cyclic accelerations such as those that occur dming earthquakes. The observed site soils were generally dense and silty and are not expected to be prone to liquefaction. A detailed liquefaction analysis was not completed as a part of this study, and none is warranted, in our opinion. Jo1111ary 27, 2005 ASSOCIATED EART/1 SCIENCES. INC. SGfllrn -Kf.047/t/Al -f'mjut.1\lfXJ./7/0lKE\W/' Page 6 • • Marlin Property King County, Washington 5 .4 Ground Motion Subsu,jace Exploration, Geologic Hazard, and Preliminary Geotechnical Engineering Report Geologic Hazards and Mi1igations The project site is located within a Zone 3 rating for seismic activity on a scale of I (lowest) to 4 (highest) based on the Seismic Zone Map of the United States, Figure No. 16-2 in the 1997 edition of the Uniform Building Code (UBC). This zonation is based on past earthquake activity in the Puget Sound region. As such, design recommendations in this report accommodate the possible effect of seismic activity in areas with a Zone 3 rating corresponding to a peak ground acceleration of 0.2g (a Richter magnitude 7.5 earthquake occurring directly beneath the site) in accordance with UBC guidelines using soil type Sc. This soil type corresponds to seismic coefficients: C. = 0.33 and C, = 0.45. Design of the project should also he consistent with 2003 International Building Code (!BC) guidelines. In accordance with the 2003 !BC, the following values should be used: Site Class "C" (Table 1615.1.1) Ss = 125% (Figure 1516(1)), F, = 1.0 (Table 1615. l.2[1)) S, = 45% (Figure 1516[2)), F, = 1.4 (Table 1615.1.2[2)) 6.0 EROSION HAZARDS AND MITIGATIONS The sediments underlying the site generally contain silt and fine sand and will be sensitive to erosion, especially in the sloping portions of the site. In order lo reduce the amount of sediment transport off the site during construction, the following recommendations should be followed. I. Silt fencing should be placed around the lower perimeter of all cleared area(s). All silt fencing must be keyed into the existing subgrade a minimum of 6 inches. The fencing sl1ould be periodically inspected and maintained as necessary to ensure proper function. 2. To the extent possible, earthwork-related construction should proceed during the drier periods of the year and disturbed areas should be revegetated as soon as possible. Temporary erosion control measures should be maintained until permanent erosion control measures are established. 3. Areas stripped of vegetation during construction should be mulched and hydroseeded, replanted as soon as possible, or otherwise protected. During winter construction, hydroseeded areas should be covered with clear plastic to facilitate grass growth . Januniy 27. 200S S(;D!w -Kf047/0A2. l'rn1,·r11\1()()47/()1KF..1WP ASSOC/AffO F:ARTH SCIENCE.~. INC. Page 7 • • • Manin Property King County, Washington Subsu,jace Exploration, Geologic Hazard, and Preliminary Geotechnica/ Engineering Report Geologic Hazards and Mitigations 4. If excavated soils are to be stockpiled on the site for reuse, measures should be taken to reduce the potential for erosion from the stockpile. These could include, but are not limited to, covering the pile with plastic sheeting, the use of low stockpiles in flat areas, and the use of straw bales/silt fences around pile perimeters. 5. Interceptor swales with rock check dams should be constructed to divert storm water from construction areas and to route collected storm water to an appropriate discharge location. 6. A rock construction entrance should be provided to reduce the amount of sediment transported off-site on truck tires. 7. All storm water from impermeable surfaces, including driveways and roofs, should be tightlined into approved facilities and not be directed onto or above steeply sloping areas (including cut and fill slopes). 7.0 LANDSLIDE HAZARDS AND MITIGATIONS The project site is characterized by gentle slopes with a low landslide risk and no detailed landslide hazard analysis is warranted, in our opinion . January 27, 2005 ASSOCIATED EARTH SCIENCES. INC. 5(;/J/111 -KE.047/0A:!. .. /'1ojcr:1s\2/){)47!0\KF.\WI' Page 8 ,. • • Martin Property King County, Washington Subsurface Exploration, Geologic Hazard, and Preliminary Geotechnical Engineering Reporl Preliminary Design Recommendations III. PRELIMINARY DESIGN RECOMMENDATIONS 8.0 INTRODUCTION Our exploration indicates that, from a geotechnical standpoint, the proposed project is feasible provided the recommendations contained herein are properly followed. The bearing stratum is relatively shallow, and conventional shallow foundations and standard pavement sections should perform well with proper subgrade preparation in most areas. 9.0 SITE PREPARATION Site preparation of building and pavement areas should include removal of all grass, trees, brush, debris, and any other deleterious materials. If the existing structures are not part of future development plans, the structures should be demolished and any remaining foundation elements or buried utilities that are not to remain operational should he removed. All existing fill around structures that are to be demolished should be removed. Existing septic systems that are not to be reused should be decommissioned in accordance with King County Health Department requirements and removed from beneath any areas where structures or paving are planned. If any water welJs exist on-site, they should be deconunissioned by a licensed well driller in accordance with Washington Administrative Code Section 173-160. If any heating oil storage tanks or other similar structures are present on-site, they should be decommissioned and removed in accordance with applicable Washington State Department of Ecology regulations. Any depressions below planned final grades caused by demolition activities should be backfilled with structural fill as discussed under the Structural Fill section. The existing grass, topsoil, and organic weathered soils should be removed from areas where new buildings, paving, or other structures are planned. These materials will "swell" some 25 to 30 percent upon excavation. The actual observed in-place depth of sod, topsoil, and organic weathered soils at the exploration locations is presented on the exploration logs in the Appendix. After stripping, remaining roots and stumps should be removed from structural areas. All soils disturbed by stripping and grubbing operations should be recompacted as described below for structural fill. Once excavation to subgrade elevation is complete, the resulting surface should be proof-rolled with a loaded dump truck or other suitable equipment. Any soft, loose, or yielding areas should be excavated to expose suitable bearing soils. The subgrade should then be compacted to at least 90 percent of the modified Proctor maximum dry density as determined by the ASTM: D-1.557 test procedure. Structural fill can then be placed to achieve desired grades, if needed. Ja1111ary 27, 200.5 liSSOCl,ffED /W/111 SCIENCES. INC. ,<;<;01s,1 -KE047J0,1'2 -/JmjfCIJ\2{)()47JOIKf.\Wr Page 9 • • • Martin Property King County, Washington 9 .1 Temporary Cut Slopes Subswface Exploration, Geologic Hazard, and Preliminary Geotechnica/ Engineering Report Preliminary Design Recommendations In our opinion, stable construction slopes should be the responsibility of the contractor and should be determined during construction. For estimating purposes, however, temporary unsupported cut slopes can be planned at lH: lV (Horizontal:Vertical) or flatter in the lodgement till. Permanent cut or fill slopes should not be steeper than 2H: 1 V. These slope angles are for areas where ground water seepage is not encountered, and assume that surface water is not allowed to flow across the temporary slope faces. If ground or surface water is present when the temporary excavation slopes are exposed, flatter slope angles will be required. As is typical with earthwork operations, some sloughing and raveling may occur and cut slopes may have to be adjusted in the field. In addition, WISHA/OSHA regulations should be followed at all times. 9. 2 Site Disturbance Most of the on-site soils contain substantial fine-grained material which makes them moisture- sensitive and subject to disturbance when wet. The contractor must use care during site preparation and excavation operations so that the underlying soils are not softened. If disturbance occurs, the softened soils should be removed and the area brought to grade with structural fill. 9 .3 Winter Construction Due to the high in-situ moisture content of most of the site soils determined by laboratory testing completed for this study, it will be necessary to dry some of the site soils during favorable dry weather conditions to allow reuse in structural fill applications. If construction takes place in winter, drying is not expected to be feasible, and we anticipate that the lodgement till soils will be unsuitable for structural fill applications. Even during dry weather, site soils excavated for installation of buried utilities might not be suitable for utility backfill under paving or other structures. We recommend budgeting for backfill of buried utility trenches in structural areas with imported, select structural fill. For summer construction, significant, but unavoidable effort may be needed to scarify, aerate, and dry site soils that are above optimum moisture content to reduce moisture content prior to compaction in structural fill applications. Care should be taken to seal all earthwork areas during mass grading at the end of each workday by grading all surfaces to drain and sealing them with a smooth-drum roller. Stockpiled soils that will be reused in structural fill applications should he covered whenever rain is possible . If winter construction is expected, crushed rock fill could be used to provide construction staging areas. The stripped suhgrade should be ohserved by the geotechnical engineer and should then be covered with a geotextile fabric such as Mirafi SOOX or equivalent. Once the January 27, 2005 SGIJlm -KE.047/0A2 -Pri1jec/1\20047!01KF.\\VP ASSOC!A7ED EARTH SCIENCES. INC Page 10 - • ,. Martin Property King County, Washington Subsurface Exploration, Geologic Hazard, and Preliminary Geotechnica/ Engineering Report Preliminary Design RecommendaJions fabric is placed, we recommend using a crushed rock fill layer at least 10 inches thick in areas where construction equipment will he used. If desired, planned roadways can be paved with asphalt treated base (A TB) for construction staging as described in the Pavement Recommendations section of this report. 10.0 STRUCTURAL FILL Structural fill may be necessary to establish desired grades. All references to structural fill in this report refer to subgrade preparation, fill type, placement, anc! compaction of materials as discussed in this section. If a percentage of compaction is specified under another section of this report, the value given in that section should he used. After stripping, plarmed excavation, and any required overexcavation have been performed to the satisfaction of the geotechnical engineer/engineering geologist, the upper 12 inches of exposed ground should be recompacted to 90 percent of ASTM:D-1557. If the subgrade contains too much moisture, adequate recompaction may be difficult or impossible to obtain and should probably not he attempted. In lieu of recompaction, the area to receive fill should be blanketed with washed rock or quarry spalls to act as a capillary break between the new fill and the wet subgrade. Where the exposed ground remains soft and further overexcavation is impractical, placement of an engineering stabilization fabric may be necessary to prevent contamination of the free-draining layer by silt migration from below. After recompaction of the exposed ground is tested and approved, or a free-draining rock course is laid, structural fill may be placed to attain desired grades. Strucrural fill is defined as non-organic soil, acceptable to the geotechnical engineer, placed in maximum 8-inch loose lifts with each lift being compacted to 95 percent of ASTM:D-1557. In the case of roadway and utility trench filling, the backfill should be placed and compacted in accordance with King County codes and standards. The top of the compacted fill should extend horizontally outward a minimum distance of 3 feet beyond the location of the perimeter footings or roadway edges before sloping down at a maximum angle of 2H: IV. The contractor should note that any proposed fill soils must be evaluated by AES! prior to their use in fills. This would require that we have a sample of the material at least 72 hours in advance to perform a Proctor test and determine its field compaction standard. We have completed one such test on a representative sample of the lodgement till and the results are included in this report. Soils in which the amount of fine-grained material (smaller than the No. 200 sieve) is greater than approximately 5 percent (measured on the minus No. 4 sieve size) should be considered moisture-sensitive. Use of moisture-sensitive soil in structural fills should be limited to favorable dry weather and dry subgrade conditions. The on-site lodgement till contains substantial amounts of silt and is considered highly moisture-sensitive when excavated and used as structural fill. At the time of our exploration program, soil Jm111nry 27. 2005 SG/1/.111 -KF.Ml/OA?. -/'1vjrm1Wt.J:J7!0l/\l'..l\\'I' ASSOCIATED FiARTH SC/ENCJ.:S, INC Page 11 • • • Martin Property King County, Washing/On Subsurface Exploration, Geologic Hazard, and Preliminary Geotechnica/ Engineering Reporl Preliminary Design Recommendalions moisture content tests indicated that all soils encountered were at moisture conditions above optimum for structural fill use. We anticipate that most excavated lodgement till soils will require aeration and drying prior to compaction in structural fill applications. Construction equipment traversing the site when the soils are wet can cause considerable disturbance. If fill is placed during wet weather or if proper compaction cannot be obtained, a select import material consisting of a clean, free-draining gravel and/or sand should be used. Free-draining fill consists of non-organic soil with the amount of fine--grained material limited to 5 percent by weight when measured on the minus No. 4 sieve fraction and at least 25 percent retained on the No. 4 sieve. 11.0 FOUNDATIONS Spread footings may be used for building support when they are founded on approved structural fill placed as described above, or on the glacial sediments that are prepared as recommended in this report. Based on our observations, suitable foundation bearing soils are expected approximately 1.5 to 3 .5 feet below the existing ground surface on each lot. The depth to suitable foundation bearing soils is presented in a table in the Subswface Conditions section of this report. If existing fill is discovered around existing structures, it should be removed and replaced with structural fill, which is also suitable for foundation support. For residential structures, footings may be designed for an allowable foundation soil bearing pressure of 3,000 pounds per square foot (psf) including both dead and live loads. Detention vault foundations excavated into dense native till can be designed with a 6,000 psf maximum allowable soil bearing pressure. An increase of one-third may be used for short-term wind or seismic loading. Perimeter footings should be buried at least 18 inches into the surrounding soil for frost protection. However, all foundations must penetrate to the prescribed bearing stratum and no foundations should be constructed in or above loose, organic, or existing fill soils. In addition, all footings must have a minimum width of 14 inches for one-story structures, 16 inches for two-story structures, or 18 inches for three-story structures. Anticipated settlement of footings founded as recommended should be on the order of '.J<\ inch or less, with differential settlement of 112 inch or less. However, disturbed material not removed from footing trenches prior to footing placement could result in increased settlements. All footing areas should be inspected by AES[ prior to placing concrete to verify that the foundation subgrades are undisturbed and construction conforms to the recommendations contained in this report. Such inspections may be required by King County. Perimeter footing drains should be provided as discussed under the section on Drainage Considerations . January 27, 2005 SGR/111 -K.£047/0,-12 -· I'mjl!m\20047/01/,."f:.\\VP ASSOCIATED EART/1 SCIENCES, INC Page 12 • • • Martin Property King County, Washington Subsurface Exploration, Geologic Hazard, and Preliminary Geotechnical Engineering Report Preliminary Design Recommendalions It should be noted that the area bounded by lines extending downward at I H: IV from any footing must not intersect another footing or intersect a filled area which has not been compacted to at least 95 percent of ASTM:D-1557. In addition, a I.SH: 1 V line extending down and away from any footing must not daylight because sloughing or raveling may eventually undermine the footing. Thus, footings should not be placed near the edge of steps or cuts in the bearing soils. 12.0 FLOOR SUPPORT If crawl space floors arc used, an impervious moisture barrier should be provided above the soil surface within the crawl space. Slab-on-grade floors may be used over medium dense to very dense native soils, or over structural fill placed as recommended in the Site Preparation and Structural Fill sections of this report. Slab-on-grade tloors should be cast atop a minimum of 4 inches of pea gravel or washed crushed rock to act as a capillary break. The floors should also be protected from dampness by covering the capillary break layer with an impervious moisture barrier at least 10 mils in thickness. Floor slabs that are supported by site soils prepared in accordance with the Site Preparation section of this report or by structural fill should experience V, inch or less of settlement. 13.0 DRAINAGE CONSIDERATIONS All footing walls, basement walls, and retaining walls should be provided with a drain at the footing elevation. Drains should consist of rigid, perforated, polyvinyl chloride (PVC) pipe surrounded by washed pea gravel. The level of the perforations in the pipe should be set at the bottom of the footing at all locations and the drain collectors should be constructed with sufficient gradient to allow gravity discharge away from the buildings. In addition, all foundation walls taller than 3 feet should be lined with a minimum 12-inch-thick washed gravel blanket provided to within I foot of finish grade that ties into the footing drain. Roof and surface runoff should not discharge into the footing drain system but should be handled by a separate, rigid, tightline drain. In planning, exterior grades adjacent to foundations should be sloped downward away from the structures to achieve surface drainage. These reconunendations apply to conventional shallow foundation walls and landscape walls less than about 4 feet tall. One should refer to the following section for walls up to 12 feet tall . ./ammry 27. 2005 S{,'lJ/rn -KFJ)-1710112 -l'mj,im120041/0\KF.IWP ASSOCIATED EARTII SCIENCES, INC. Page 13 e • Martin Properry [(ing County, Wa.ihington Subsu,jace Exploration, Geologic Hazard, and Preliminary Geotechnica/ Engineering Report Preliminary Design RecommendaJions 14.0 CAST-IN-PLACE RETAINING WALLS AND BASEMENT WALLS All backfill behind foundation walls or around foundation units should be placed as per our recommendations for structural fill and as described in this section of the report. Horizontally backfilled walls, which are free to yield laterally at least 0.1 percent of their height, may be designed using an equivalent fluid equal to 35 pounds per cubic foot (pcf). Fully restrained, horizontally backfilled rigid walls that cannot yield should be designed for an equivalent fluid of 50 pcf. Walls with sloping backfill up to a maximum gradient of 2H: IV should be designed using an equivalent fluid of 55 pcf for yielding conditions or 75 pcf for fully restrained conditions. If parking areas are adjacent to walls, a surcharge equivalent to 2 feet of soil should be added to the wall height in determining lateral design forces. As required by the 2003 IBC, retaining wall design should include a seismic surcharge pressure in addition to the equivalent fluid pressures presented above. Considering the site soils and the recommended wall backfill materials, we recommend a seismic surcharge pressure of 41-J and 81-J psf where H is the wall height in feet, for the "active" and "at-rest" loading conditions, respectfully. The seismic surcharge should be modeled as a rectangular distribution with the resultant applied at the midpoint of the wall. The lateral pressures presented above are based on the conditions of a uniform backfill consisting of excavated on-site soils, or imported structural fill compacted to 90 percent of ASTM:D-1557. A higher degree of compaction is not recommended as this will increase the pressure acting on the walls. A lower compaction may result in settlement of the slab-on-grade or other structures supported above the walls. Thus, the compaction level is critical and must be tested by our firm during placement. Surcharges from adjacent footings or heavy construction equipment must be added to the above values. Perimeter footing drains should be provided for all retaining walls as discussed under the section on Drainage Considerations. It is imperative that proper drainage be provided so that hydrostatic pressures do not develop against the walls. This would involve installation of a minimum I-foot-wide blanket drain to within 1 foot of finish grade for the full wall height using imported, washed gravel against the walls. 14.1 Passive Resistance and Friction Factors Lateral loads can be resisted by friction between the foundation and the natural glacial soils or supporting structural fill soils, or by passive earth pressure acting on the buried portions of the foundations. The foundations must be backfilled with structural fill compacted to at least 95 percent of the maximum dry density to achieve the passive resistance provided below. We • recommend the following design parameters: Janunr)' 27. 2005 ASSOCIATED EARTH SCIENCES, INC. .w~·u1i11 .• Kf..04710,12 . l'111jcw120047!0\/..'tJWP Page 14 • • • Martin Property King County, Washington • Passive equivalent fluid = 250 pcf • Coefficient of friction = 0.35 Subsurface Exploration, Geologic Hazard, and Preliminary Geotechnical Engineering Repon Preliminary Design Reconunendations The above values are allowable and include a safety factor of at least 1.5. 15.0 PAVEMENT RECOMMENDATIONS The pavement for this project is expected to be supported by medium dense, silly sand (lodgement till), recompacted, inorganic weathered soils, or structural fill soils. These soils should be suitable, with proper preparation, to allow the use of standard paving sections. Because some of the site soils were substantially above optimum moisture content at the time of our exploration program, remedial subgrade preparation might be required below the paving. Remedial preparation measures could include removal of some of the existing site soils below the planned pavement section and restoring the planned subgrade elevation with select imported structural fill, treating the native soil subgrade with Portland cement to stabilize the wet soils, or aeration and drying of existing soils prior to compaction of the road subgrades. We recommend that the final determination of how to prepare the road subgrades be made at the time of construction when weather and field conditions are known. The King County standard paving section for residential access streets is 2 inches of Class B asphalt concrete paving (ACP) above 3 inches of ATB above 6 inches of gravel borrow. All depths given are compacted depths. All paving materials, base course materials, and placement procedures should comply with suitable standard specifications such as the Washington State Department of Transportation (WSDOT) Standard Specifications for Road, Bridge, and Municipal Construction or other suitable specifications. All structural fill and all native subgrades less than 4 feet below finished grade for a planned roadway should be compacted to 95 percent of the modified Proctor maximum dry density as determined by ASTM:D-1557. Prior to structural fill placement or to placement of base course materials over native subgrades, the area should be proof-rolled under the observation of AES! with a loaded dump truck or other suitable equipment to identify any soft or yielding areas. Any soft or yielding areas should be repaired prior to continuing work. If desired, A TB can be used to provide a construction working surface. After the buried utilities are in place, the subgrade is prepared, the gravel borrow is placed, and the ATB is laid and compacted. This ATB surface is then used for construction access, and once most of the heavy const.ruction traffic has subsided, any damaged pavement areas are repaired prior to final surfacing with ACP . Janumy 27. 2005 SGU/111. l(l:.'047/0,12 -PmjrwW}{}./J/OlKf.\\\ll' ASSOC/AT/iD EARTII SCIENCES. INC Page 15 (-Manin Property Subsurface Exploration, Geologic Hazard, and Preliminary Geotechnical Engineering Repon Preliminary Design Recommendations e • King County. Washington 16.0 PROJECT DESIGN AND CONSTRUCTION MONITORING At the time of this report, site grading, lot layouts, structural plans, and construction methods have not been finalized, and the recommendations presented herein are preliminary. We are available to provide additional geotechnical consultation as the project design develops and possibly changes from that upon which this report is based. We recommend that AESI perform a geotechnical review of the plans prior to final design completion. In this way, our earthwork and foundation recommendations may be properly interpreted and implemented in the design. We are also available to provide geotechnical engineering and monitoring services during construction. The integrity of the foundations for buildings and of new pavement depends on proper site preparation and construction procedures. In addition, engineering decisions may have to be made in the field in the event that variations in subsurface conditions become apparent. Construction monitoring services arc not part of the current scope of work. If these services are desired, please let us know and we will prepare a cost proposal. We have enjoyed working with you on this study and are confident that these recommendations will aid in the successful completion of your projeqt. If you should have any questions or require further assistance, please do not hesitate to cail. Sincerely, ASSOCIATED EARTH SCIENCES, INC. Kirkland, Washington .~Jtr~ Susan G. Beckham, P.E. Project Engineer Attaclunents: Figure I: Figure 2: Appendix: January 27, 2005 Vicinity Map Site and Exploration Plan Exploration Logs Laboratory Test Results SGB/m -1<£()41/0,1 Z -/'mjt'Cls\2(}04710\KEI wr· I IJ(l"IAII 11/20/ [)(o Kurt D. Merriman, P.E. Principal Engineer ASSOCIATED EART// SCIENCES, INC. Page 16 "' .. !2 0 w 0 ~ ll'. ... :::, w ;!; w CD ~ w -' iI "' z~ .. 0 (J 0 (f) z 0 ci z ll'. Q. F •'1•/ 11.r.c,,r r·· .. w .-< </I ...... ,,... l,J ,·, ;- LLI 1.rJ ._; 1,ri <./1 ~, ' w 3S :'11/ Hifrd j ·. ,0 18vT 3 / 31-1 /1\f. ----.-----·--·-··-·· ' i I 3S .; ~ C ,; • u ~ C • u Ill .c ~ ~ L • w " l;J • ~ • u 0 " rm " .: ~ 0 0 0 "' 'if!.Z ci 0 C z "' 0 C c-., 0 ., " - "O fi .E J . • .. ~ . s ~ .. J! ~ a: "' • VI ll'. _., ~ "' ~ 0 I! VI (!) C C ., "' 0 = e 0 0 I" :, u. • '5 V) "O ~ s ., i3 " I! G 0 u Well-graded gravel and GW gravel with sand. little to no fines Poorly-graded gravel and gravel with sand. little to no fines Silty gravel and silty GM gravel with sand Clayey gravel and GC clayey gravel with sand Well-graded sand and sw sand with gravel, litlle to no fines Poorly-graded sand and sand with gravel. \illle to no fines Silty sand and SM silty sand with gravel Clayey sand and clayey sand with gravel Terms Describing Relative Density and Consistency DensilY. SPT 1" blows/foot Coarse- Very Loose o to4 Loose 4 lo 10 Grained Soils Medium Dense 10 lo 30 Dense 30 10 50 Test Symbols Very Dense >50 G = Grnin Size M = Moistuie Conlent Consistenc'l SPT 121 blowslfoot A = Allerberg Umils Very Sott 0102 C = Chemical Fine-Sott 2 lo 4 DD = Dry Oensily Grained Soils Medium Stitt 4 lo8 K = Pe1meability Stitt 810 15 Very Stitt 15 lo 30 Hard >30 Descriptive Term Boulders Component Definitions Size Range and Sieve Number Larger than 12· Cobbles Gravel Coarse Gr~vel Fine Gravel Sand Coarse Sand Medium Sand Fine Sand Sill and Clay 3' to 12· 3' lo No. 4 (4. 75 mm) 3' to 3/4' 3/4' to No. 4 (4.75 mm) No 4 {4.75 mm) lo No. 200 {0075 mm) No 4 (4. 75 mm) to No to (2.00 mm) No. 10 (2.00 mm) lo No. 40 (0.425 mm) No. 40 (0.425 mm) lo No. 200 (0.075 mm) Smaller lhan No. 200 (0.075 mm) (>) Estimated Percentage Component 1'1t----j--S-ilt-.-sa_n_d_y_s_i_lt_, g_r_a_v-et_ty_s-it-t,----1 Trace Few Percentage by Weight <5 5 lo 10 15 to25 Moisture Content Ory · Absence of moisture, dusty, dry to !he touch Slighlly Moisl • Perceptible moisllffe slit with sand or gravel Uttle Clay of low to medium plasticity; silty, sandy, or gravelly clay. lean clay Wilh Organic clay or sill of low plasticity Sampler Type astic silt, clayey silt, silt . h . 2.0" 00 MH wit m1caceous or · Sp!il·Spoon diatomaceous fine sand or Sampler ~!1---t':'si,,_lt _=--:----:---.--::-------i (SPT) Clay of high plasticity, CH sandy or gravelly clay, fat clay with sand or gravel Bulk sampte · Non·primary coarse constituents: ;::. 15% · Fines content between 5% and IS% Moisl • Damp bul no visible water Very Moist -Water visible but not free d1aining Wei· Visible lree waler, usually from below waler table Symbols B!ows/6" or portion of 6" I . • • Sampler Type Description 3.0" OD Split -Spoon Sampler 3.25' OD Split-Spoon Ring Sampler 3.0" OD Thin-Wall Tube Sampler (including Shelby lube) O Portion not recove1ed t•l Cement gout surface seal Benlonite seal :: flier pack wi1h .': blank casing .. :. section ·: Sc,eened casing ·.· or Hydrotip ·: with lilte, pac\< :. End cap Organic clay or silt of OH medium to high plasticity 1-,,,-----=::::_------------------------f Ill Percentage by dry weight 141 Depth of ground waler 121 (SPT) Standard Penetration Test f--'------£i~!8--f-----------i (ASTM 0-1586) >-.!::? Peat. muck and other tJI ln General Accordance with ?. ATO -Al time of drilling 'Sl.. Static water level (date) :c ffi ~ .21 e> ~ PT highly organic soils Standard Practice for Description I o and Identification or Soils (ASTM 0·2488) (S) Combined uses symbols used for lines between 5% and 15% C1assiricalions of soils in this report are based on visual field and/or laboralory observations, which include densilyfconsislency, moisture condition, grain size, and plasticity estimales and should not be conslrued lo imply field or laboratory le:s(ing untess presented herein. V\suat-m,mual and/or laboratory dasslrication melhods of AS1M 0·2487 and D-2488 were used as an identification guide for \he Unified Soil Classification System. { Associated Earth Sciences, Inc. FIGURE ?m~~[!J~ i Exploration Log Key A-1 --------- • 1 LOG OF EXPLORATION PIT NO. EP-1 This log is part of the report rrepared by Associated Earth Sciences, Inc. (AESI) for the named project and should be read tqgether with that repor for complete interpretation. This summary applies only to the location of this trench at the tlme of excavation. Subsurface conditions may change at this location with the passage of lime. The data presented are a simplflcation of actual conditions encountered. DESCRIPTION Sod and Topsoil grading to loose, moist, dark brown, silty SAND, with gravel roots, cobbles-and ___ _ abundant organics_ 2 ------·--·-·--nu ---·-·--·----·-----·-· 3 4 - 5 6 7 8 9 10 11 12 13 - 14 15 16 17 18 - 19 Medium dense, moist, gray mottled, silty SAND, with gravel, cobbles, trace boulders. Dense at 3', lightly cemented and no longer mottled. Very dense below 9'. ----------·--··-·--·----·------·-·-·------·--·----··-···- Bottom of exploration pit at depth 10 feet No ground water. No caving. ~ ----20----·-------------------·----·------·---· . --· ·---------···-···-·· .. ' ~ • ~ ~ ' " 0 Logged by: SGB Approved by· Martin Property King County, WA Associated Earth Sciences, Inc. Project No. KE04710A 1/12/05 • g ,g_ .. 0 LOG OF EXPLOAATION PIT NO. EP-2 This log is part of the report prepared by Associated Earth Sciences, Inc. (AESI) for the named project and should be read together with that report for complete interpretation. This summary applies only to the location of this trench at the lime of excavation. Subsurface conditions may change at this location with the passage of time. The data presented are a slmplflcallon of actual conditions encountered. DESCRIPTION Sod and Topsoil -----------------------=~~-=~--Weathered Till Loose, moist, brown, silty SAND, with gravel, roots and organics. 2 --------------------Till -----------------· 3 4 5 6 7 8 9 - 10 11 12 13 14 15 16 17 18 19 Medium dense, moist, slightly mottled gray, silty SAND, with gravel and cobbles. Dense below 4' and lightly cemented, few boulders. Sandier below 8'. Bollom of exploration pit at deplh 11 feet S1ow seepage from north al 5'. No caving. -20-----------------···-··----------·--·---·--·--------------------·------------·--i ~ • (!) ~ ' ., 0 ~ a Logged by: SGB Approved hy: Martin Property King County, WA Associated Earth Sciences, Inc. ~~~~~ Project No. KE04710A 1/12/05 • g 1 0 LOG OF EXPLORATION PIT NO. EP-3 This log is part of the report prepared by Associated Earth Sciences, Inc. (AESI) for the named project and should be read tqgether with that report for complete Interpretation. This summary applies only to the location of this trench at the time of excavation. Subsurface condlllons may change at this locaUon with the passage of time. The data presented are a simplficatlon of actual conditions encountered. DESCRIPTION -··---------Sod and Topsoil 1 ---------Weathered TIii ---· -------- 2 3 4 5 - 6 7 8 9 - 10 11 12 - 13 - 14 - 15 - 16 17 - 18 19 Loose, moist, brown and dark brown, silty SAND, with gravel roots and organics. ------··---·---Till ---·--------·------ Medium dense, moist, gray mottled, silty SAND, with gravel and cobbles. Dense at 4' and weakly cemented. -Very dense be·-1o_w_B-,.-·------· Bottom of exploration pit at depth 6 feet No ground water. No caving. ~-20--·--·-----··-·-····-·---_____________________ .. ______ .. -·-·-·--------·-.. ·- Logged by: SGB Approved by: Martin Property King County, WA Associated Earth Sciences, Inc. ~~lffl[Jj~ Project No. KE04710A 1112105 • 1 2 - 3 4 5 6 LOG OF EXPLORATION PIT NO. EP-4 -------------------·-··------------------------------ This log is part of the report prepared by Associated Earth Sciences, Inc. (AESI) for the named project and should be read tqgether with that reporl for complete Interpretation. This summary applies only lo the location of this trench at the lime of excavation. Subsurface conditions may change al this location with the passage of time. The data presented are a simplflcation of actual conditions encountered. ------------ DESCRIPTION Sod and Topsoil Weathered Till ----------------------+-----l Loose to medium dense, moist, brown, silty SAND, with gravel roots and few pockets of organics and wood. ---------------------~r=m Medium dense to dense, very moist, gray, silty SAND, with gravel, cobbles. 7 ------------------------ 8 - 9 10 - 11 - 12 13 - 14 15 16 17 18 19 Bottom of exploration pit at depth 7 feet Moderate seepage at 3'. Slight caving 2' lo 3'. ~-. 20---------------------------------------"····----------------------------------\-• a ' ~ ~ " " ~ ~ 0 ~ Logged by SGB Approverl by: Martin Property King County, WA Associated Earth Sciences, Inc. ~~~[Jj~ Project No. KE0471 OA 1/12/05 • g £ "" • 0 LOG OF EXPLORATION PIT NO. EP-5 ---·-··-----·-----·----·-----·-··-- This log is part of the report prepared by Associated Earth Sciences, Inc. (AESI) for the named project and should be read together with that report for complete Interpretation. This summary applies only to the location of this trench al the time of excavation. Subsurface condiUons may change at this location wilh the passage of time. The data presented are a simplfication of actual conditions encountered. DESCRIPTION ----Sod and Topsoil · · ··--·----·-·-- 2 ---·----·----Weathered Till . -------·---·--·-·- Loose to medium dense, moist, brown, silty SAND, with gravel, trace roots and pockets of organics and wood. 3 ---·---·-·----·-------·----·----Till ·--- 4 5 6 7 8 - 9 10 11 12 13 14 15 16 17 18 19 Medium dense, moist, gray mottled, silty SAND, with gravel and cobbles. Dense below 4', weakly cemented. Very dense and moderately cemented below 6'. Bollom of exploration pit at depth 7 feel No grounr1 water. No caving. .--~o----·--·---·-·--··--··-··-···-·--·--··-·--···--·-··-·----··-----··--·---··---• l ~ i,' ~ ~ ,_ t n ~ Logged by: SGS Approved by: Martin Property King County, WA Associated Earth Sciences, Inc. Project No. KE0471 OA 1112/05 g £ a. w 0 LOG OF EXPLORATION PIT NO. EP-6 This log is part of the report prepared by Associated Earth Sciences, Inc. (AESI) for the named project and should be read together with that report for complete Interpretation. This summary applies only to the location of this trench at the time of excavation. Subsurface condil!ons may change at this location with the passage of time. The data presented are a s!mplfication of actual conditions encountered. DESCRIPTION Sod and Topsoil ·-·-.. ----WeatheredTill · · -·-·-·---- Loose. moist, dark brown and brown, silty SAND. with gravel and roots and organics. 1 2 3 4 5 6 7 ·-·--·---··---------·------Till-------··-·---·--·------- Medium dense, moist, gray, silty SAND, with gravel and cobbles. Dense at 4', few boulders, sandier with depth. 8 -Very dense below 8'. 9 10 11 ·-·---·-·----.. ----------------··-----------·---·-·-· .. ---· ---· 12 13 14 15 - 16 17 18 19 Bottom of exploration pit at depth 11 feet Slow seepage at 3.5'. No caving ~-2G-··---·-·--··--·---·--·-···---· -·---···--··-···--· .. --.. ··-····--·-----·---· ---·--·-.. ·--·---·-·--I § ;i ;:: 6 ~ ~ Logged by: SGB Approved by: Martin Property King County, WA Associated Earth Sciences, Inc. m1~~~0 Project No. KE0471 OA 1/12/05 • g % ., 0 2 3 LOG OF EXPLORATION PIT NO. EP-7 ----··-·-----------·-·-· -----·--------·-·---·-··- This log is part of the report prepared by Associated Earth Sciences, Inc. (AESI) for the named project and should be read tggether with that report for complete Interpretation. This summary applies only to the location of this trench at the time of excavation. Subsurface condlllons may change at this locatlon with the passage of time. The data presented are a simplficalion of actual conditions encountered. DESCRIPTION Sod and Topsoil Weathered TIii Loose to medium dense, moist, brown and dark brown, silly SAND, with gravel roots and organics. ·-··------------··-··-TIii ·---··---·-·-··-·-···-··-··- Medium dense to dense, moist, silty SAND, with gravel and cobbles. 4 - 5 6 7 Strongly cemented and very dense below 6'. 8 ---·--·---·-·----·------·-------·-·----··----- 9 10 11 12 13 14 15 16 17 18 19 Bollom of exploration pit at depth 8 feet No ground water. No caving. z-O -····-·---------------·-···-··-··--··-----····-···-····---· -··"-··-··-···-----···----·· ~·----------------------------------------------~ ~ Logged by: SGB Approved lly: Martin Property King County, WA Associaterl Earth Sciences, Inc. ~~~~~ Project No. KE04710A 1/12/05 • g ,5 a. ~ 0 1 - 2 LOG OF EXPLORATION PIT NO. EP-8 -----···------·---·--·--------····------·------------·----------··. This log is part or the report prepared by Associated Earlh Sciences, lnc.·(AESI) for the named project and should be read together with that report for complete interpretaUon. This summary applies only lo the location of this trench at the time of excavation. Subsurface conditions may change al lhls location with the passage of time. The data presented are a simplflcation of actual conditions encountered. DESCRIPTION Sod and Topsoil · · · · 3 ---------------------------Till________ ----------------- 4 5 6 7 Medium dense, moist, hrown grading to gray, silty SAND. with gravel and cobbles. Dense and lightly cemented below 3'. Very dense hetow 6'. B ------------ g 10 - 11 12 13 14 15 16 .. 17 18 19 - Bottom of exploralion pit at deplh 8 feel No ground water. No caving. • ----20----- Logged by: SGB Approved by· Martin Property King County, WA Associated Earth Sciences, Inc. Project No. KE04710A 1/12/05 • 2 3 4 5 6 7 8 -- 9 10 11 12 13 14 - 15 16 -· 17 18 19 LOG OF EXPLORATION PIT NO. EP-9 This log is part of the report prepared by Associated Earth Sciences, Inc. (AESI) for the named project and should be read lqgettier with that report for complete Interpretation. This summary applies only to the location of this trench at the time of excavation. Subsurface r.ondilions may change at this location with the passage of time. The data presented are a s!mplficatlon of actual conditions encountered. DESCRIPTION · Sod and Topsoil -----·----------·· ·- ----·-·--------··----------·-----···----·--------------·- Medium dense to dense, very moist, gray, silty SAND, with gravel and cobbles. Mottled and medium dense to 4'. Dense below4'. Trace boulders, very dense below 5'. Bottom of exploration pit at depth 7 feet Slow seepage al 3'5" from south. Slight caving 2' lo 5'. ~ ----20--------------···-·-· ··--·--·-··-----·--·----···· ·--· .. ---· · ---···-···· ·----·--g ~ • 0 ~ ~ 0 g Logged by: SGIJ Approved by Martin Property King County, WA Associated Earth Sciences, Inc. Project No. KE04710A 1/12105 Associated Earth Sciences, Inc. Date Sampled Project . ,. Project No. 12-Jan-05 Martin Property KE04710A Tested By Location EB/EP No. KWL Eps Depth Proctor Analysis ASTM 01557, 0698 Soll Description Light brown silty SAND gravel !Percent eassing 3/4" siev~: 83% ASTM 01557 Method C _J Automatic Tam per i A Mold Number 1 2 3 Remarks -- B Water Added field dry dry C Wt. of Wet Soil + 24.420 24.760 24.500 Mold Clbl - D Wt. of Mold (lb) 14.090 14.090 14.090 E Wt. of Wet Soil (lb) 10.330 10.670 10.410 F Wet Density. (pcf) 137.733 142.267 138.800 G Wt. of Pan (lb) 0.735 0.735 0.660 --- H Wt. of Wet Soil + 11.075 11.925 11.125 Pan /lb\ J Wt. of Dry Soil + 9865 10.920 10.420 Pan /lb\ -- K Wt. of Water (lb) 1.210 1.005 0.705 M Wt. of Dry Soil (lb) 9.130 10.185 9.760 N Moisture Content 13.3 9.9 7.2 '%) 0 Dry Density (pcf) 121.6 129.5 129 4 . z For a 6 inch mold: Z = 0.075 For a 4" mold: Z = 0.0333 :,:3:0:0 ~----~-· =-------_··.-.-= ~----=~=-~-=-.... -. -·-·_ ···---··· ··---·. --~ ~ ~ " l ~ :,:,1:0:0 ~---··_ . -.-_.i=_' ~~-·"''\·---.-.......J· --. .. ·r--:~ --.L.· . .-·-·--'--'-·· .. ~ --··-·~--·--·--0.0 5.0 10.0 15.0 20.0 25.0 moisture content, % ~------------------------~ Test Results: Optimum Moisture Percentage: Maximum Dry Density: Correction for oversize: ASTM 04718 8.5 130.0 Corrected Moisture Percentage: 7.0 "'C"'o0 r,c.:rec::c.c.:tec.:dc.:M.c.:a:ocx.c.i m=u'-'m'-'D"'ryCL.:D:.:eccn:.::s:.:;i l Ycc.· __ ...:1 3 5 .4 Assumed Specific Gravily: 2.7 ·• ASSOC/A TED EARTH SCIENCES, INC. 911 Fifth Ave , Suite 100 K'1rkland, WA 98033 425-827-7701 FAX 425-827-5424 .ssociated te Sampled 2/2005 sted By IT nple ID t Weight+ Pan •Weight+ Pan lght of Pan ight of Moisture Weight of Soil !oisture ,pie ID : Weight + Pan Weight+ Pan g-Pan g Moisture Weight of Soil ioisture ,pie ID Weight+ Pan Weight+ Pan Jht of Pan Jht of Moisture Neigh! of Soil oisture pie ID Weight+ Pan 'I/eight+ Pan rht of Pan rht of Moisture 'I/eight of Soil >isture .,. Earth Sciences, Inc. Project Project No. Martin Property KE04710A Location EB/EP No. EP's EP-1 @3' 2316 2057 227 259 1830 14.2 EP-4@3' 1515 1355 215 160 1140 14.0 EP-6@4' 1528 1400 226 128 1174 10.9 EP-9 @2.5' 1502 1300 202 202 1098 18.4 'Depth EP-2@3.5' 1730 1542 221 188 1321 14.2 EP-5@3' 1256 1080 223 176 857 20.5 EP-7@3.5' 1706 1537 221 169 1316 12.8 Moisture Content ASTM D 2216 Soil Description EP-3@3' 1896 1662 223 234 1439 16.3 AJi'A ~/ .34,/ EP-6 1498 1278 220 220 1058 20.8 EP-8@ 3' 1510 1336 221 174 1115 15.6 ASSOCIATED EARTH SCIENCES, INC. 911 Slh Ave, Suite 100 Kirkland, WA 98033 425-827-7701 FI\X 425-827-5424 3.2.2 KCRTS/RUNOFF FILES METHOD-GENERATING TIME SERIES • TABLE 3.2.2.B E6u1V~L'ENCE IIETWEJnl'IS6S!l~ii. tYPES ANb.kca+s SOIL T¥PES . ·.. ._,.,.,,._:. ·-.. -_ . · ... · ... · •. -,_'.•·1' ··. . . ·: . ·-. -· .•.. ', ; .' . SCS Soll Type scs KCRTS Soll Notes Hydrologlc Group Soll Group ~ Alderwood (AaB, AaC, AaD C Till ~ Arents, Alderwood Material AmB, AmC) C 1111 Arents. Everett Material (An B Outwash 1 Beau site (Bee, BeD, BeF) C Till 2 Bellingham (Bh) D TIii 3 Brisco! (Br) D Till 3 Bucklev (Bu) D TIii 4 Earlmont (Ea) D Till 3 Edaewlck (Ed) C Till 3 Everett CEvB, EvC, EvD, EwC\ AfB Outwash 1 Indianola (lnC, lnA, lnD) A Outwash 1 Kitsap (KpB, KpC, KpD) C Till Klaus (KsC) C Outwash 1 Neilton (NeC) A Outwash 1 Newberg (Na\ B Till 3 Nooksack (Nk\ C Till 3 Norma (No) D Till 3 Orcas (Or) D Wetland • Oridia (Os\ D Till 3 Ovall (OvC, OvD. OvF) C Till 2 Pilchuck (Pc) C Till 3 Puf;let (Pu) D Till 3 Puyallup (Py) B Till 3 Raanar (Rae, RaD, Rae, RaE\ B Outwash 1 Renton (Re) D Till 3 Salal /Sa\ C Till 3 Sammamish (Sh) D Till 3 Seattle ( Sk) D Wetland Shalcar (Sm\ D Till 3 Si (Sn) e Till 3 Snohomish (So, Sr\ D Till 3 Sultan (Su) C Till 3 Tukwila (Tu\ D Till 3 Woodinville (Wo) D Till 3 Notes: 1. Where outwash soils are saturated or underlain at shallow depth (<5 feet) by glacial till, they should be treated as till soils. 2. These are bedrock soils, but calibration of HSPF by King County DNRP shows bedrock soils to have similar hydrologic response to till soils. 3. These are alluvial soils, some of which are underlain by glacial till or have a seasonally high water table. In the absence of detailed study, these soils should be treated as till soils. 4 . Buckley soils are formed on the low-permeability Osceola mudflow. Hydrologic response is assumed to be similar to that of till soils. • 2005 Surface Water Design Manual t/24/2005 3-25 .Topo Zo ne -The Web's Topographic Map ($1~ t~OT 0 0.3 0 .6 0.9 1.2 1.!S kill 0 0.2 0.4 0.6 0 .8 1 llli Map ce nte r is UTM 10 563458E 5257030N (WGS84/NAD83) Renton quadrangle DmiPr til"ln i c: IITM 7n n P 1n NArlR 1 n~htm r M=18 .0% r.-t'\ f'.:.? i I l -1-.. \'~ . ! ',,_,....... ~ -.:1 : ·\ , \ . ' l"' .. ~ _ .. ; ;~ \·I -,,!_, -f?r. K .· \ ~· ... I ••• : •• •• .~:,· : u -. . . -+.ii _.' ·~ '~-- 'S.,. ....:.. \. \:. 5l.:{~ ~-~ , ..... ·,, __ .' ,.,, / '·· · iV I·-·"\.., ...... \ , _ C \ J •• •• • :~< ... ~:·.:,·• •' i ..... ~, I . -"' '\~ ·.··;~ /'!"" (: " !· • ;:'" ·~ ::.-· f.-· .. _!!" - '-": ....... .. ;;;'"\I .. '·1 / I ;, ,., : " \ ' ,· ... -· .. LOWER CEDAR RIVER BASIN Basin Boundary Subcatchment Boundar y Collection Po int Stream 0299 Tributary Number •3115 Proposed Project .\ N 0 2 M ile s + ~ . ./ I ( \ ........ \ \ ~~t,r---.:c-_J~ -:,;::: £ ~ /-<~ )J -/ -,,\&-:Kft. =: . ' ' ' '} '~- .:::i> r:_: ~ ~ \\I r-:: --i ~ ~ ~ ~ r= rt \f • e • Associated Earth Sciences, Inc . • ..... cdefm~ 2.j 1/ears of ,Service June 22, 2007 Project No. KE04710A CamWest Development, Inc. 9720 NE 120"' Place, Suite 100 Kirkland, Washington 98034 Attention: Subject: Ms. Sara Slatten Reinforced Rockery Recommendations Martin Property SE 125"' Street and 146"' Place SE King County, Washington Dear Ms. Slatten: As requested, this letter summarizes our recommendations for the design and construction of the proposed reinforced rockery wall on the south sides of Lot 9, 10, and 11 of the Martin property project. Our participation on this project has included the completion of a subsurface exploration and geotechnical design report, dated January 27, 2005, and the design of this reinforced rockery. We understand that a rockery is proposed along the south sides of Lots 9, 10, and 11, and will face primarily structural fill to raise site grades on this project. The maximum rockery height is planned to be about 6 feet. In general, all aspects of the planned rockery wall should be constructed in accordance with applicable guidelines for such features as face batter angle, toe embedment, rock size, placement, and drainage features. Examples of acceptable rockery construction guidelines are the Associated Rockery Contractors' Standard Rockery Construction Guidelines, King County Building and Land Development's Rockery Standards, or other applicable local guidelines. Reinforced rockeries are designed to perform as a stable reinforced fill, protected from erosion by a rockery facing. As such, performance of the finished system is dependent on adequate construction of both the reinforced fill and the facing. Sheet 1 of l , attached to this letter, provides a graphical representation of the reinforced rockery construction, as described. Geogrid reinforcing should be placed at the specified elevations shown on the referenced plan sheet, and should be laid flat. The geogrid-reinforcing material should be free of wrinkles and folds. The joints between the separate geogrid-reinforcing material should be completed in accordance with the manufacturer's recommended procedures, which vary depending on the specific product selected. Adequate length should also be taken into consideration for the wrap around face height and top embedment length of the geogrid-reinforcing layer. Suitable fill material should be placed in loose lifts not exceeding 8 inches in thickness and should be uniformly compacted with the Kirldand Office• 911 Fifth Avenue, Suite 100 • Kirkland, WA 98033 •PI (425) 827-7701 •FI (425) 827-5424 Everett Office• 29111/2 Hewitt Avenue, Suite 2 • Everett, WA 98201 •PI (425) 259-0522 •FI (425) 252-3408 WWW~MON'I mm • • appropriate equipment such that a minimum compaction level of 95 percent of the modified Proctor maximum dry density (American Society for Testing and Materials [ASTMJ:D 1557) is achieved. Once the reinforced fill is constructed, it is typically shaped at the face, and the rockery facing is constructed conventionally. For this project, we have designed the rockery for a maximum height of 6 feet. We have assumed that the on-site soil will be used. Based on these criteria, we have calculated a minimum vertical spacing of 2 feet, a minimum top embedment length of 3 feet, and a minimum embedment length of 6 feet behind the face of the fill embankment for each geogrid-reinforcement layer. We recommend the use of a geogrid that has a minimum allowable long-term design strength of 2,000 pounds per foot. All rockery sections with heights between 3 and 6 feet should include the above- recommended geogrid reinforcements. Rockeries less than 3 feet in height do not require reinforcement. We recommend that we be allowed to observe construction of the reinforced rockery to confirm that our design recommendations are adequately interpreted and incorporated into the project. We would also perform a number of density readings as work proceeds to verify that the recommended minimum compaction levels have been achieved. We appreciate the opportunity to be of service on this project. Please do not hesitate to call if we can be of further assistance, or if you have any questions regarding this letter. Sincerely, ASSOCIATED EARTH SCIENCES, INC. Kirkland, Washington Kurt D. Merriman, P.E. Principal Engineer Attachment: Sheet I of 1 -Rockery Wall Details and Notes cc: Triad Associates • 12112115th Avenue NE Kirkland, Washington 98034 Attn: Ms. Rebecca Cushman KDMl!d -KE047I0AJ -Projccts\20040710\KE\WP 2 • • • Martin Property-Technical Information Report 7 OTHER PERMITS • NPDES September 20, 2007 Job #04-257 Page 7-1 • • • Martin Property-Technical Information Report 8 TESC ANALYSIS, DESIGN AND CONSTRUCTION STORMWATER POLUTION PREVENTION PLAN 8.1 TESC Analysis and Design The temporary erosion and sedimentation control plan will be designed to reduce the discharge of sediment-laden runoff from the site. The plan will be comprised of temporary measures (rock entrance, filter fence, interceptor swales, etc.) as well as permanent measures (hydroseeding, etc). In general, runoff from the site will sheet flow across cleared areas into temporary interceptor swales with rock check dams placed approximately every 50 to 150- feet depending on slope and into the permanent detention pond (to be used as a temporary sedimentation pond). In order to convey the runoff prior to the installation of the storm water pipes, temporary pipes along with portions of the permanent sections of the proposed conveyance system will be installed. The 15-minute I 0-year developed flow has been used to size the sediment pond. KCRTS output can be found at the end of Section4 . Surface Area Calculations for Sediment Pond Q10-<1evelop,'tl; 2.08 cfs Sediment Trap: The surface area for the sediment trap has been calculated using the following equation: Where: SA; Surface Area Required (sf) Qio; Developed peak flow for the I 0-year, 15-min peak (2.08 cfs) Ysed; Settling Velocity (0.00096 ft/s) SA ; 2 (2.0S) ; 4 333 sf 0.00096 ' The discharge volume for the IO-year storm event is 4,857 cf. The surface area of the sediment pond at 3.5 feet (minimum) above the live/dead interface is 12,440 sf. September 20, 2007 Job #04-257 Page 8-1 • • • Martin Property-Technical Information Report The Dewatering orifice has been sized using equations available in the 2005 KCSWDM Appendix D. (Section D.3.5.2). Ao= As(2h)05 0.6x3600 xTg 0·5 Where: = 12,440ft 2 (2x0.3.5)05 =O.lll 9 ft 2 0.6 x 3600 x 24 hours x (32.2 ft/sis) 0 ·5 Ao= orifice area (square feet) As = pond surface area ( square feet) h = head of water above orifice (height of riser in feet) T = dewatering time (24 hours) g = acceleration of gravity (32.2 ft/s2) D"''" = 13.54 X ..jA; = 13.54 X ~0.1119 = 4.53 inches The constructible design size that meets the Dmin criteria is 4-9/16" . September 20, 2007 Job #04-257 Page 8-2 • • Martin Property -Technical Information Report 8.2 CSWPPP DESIGN All pollutants, including waste materials and demolition debris, that occur onsite shall be handled and disposed of in a manner that does not cause contamination of storm water. Good housekeeping and preventative measures will be taken to ensure that the site will be kept clean, well organized, and free of debris. If required, BMPs to be implemented to control specific sources of pollutants are discussed below. No pollution products are to be stored on the site unless a plan is submitted and approved by King County DOES. A detailed list of person shall be submitted to King County ODES prior to any construction activity on the site including the TESC supervisor and personnel responsible for the proper refueling of construction equipment and containing any concrete washout facility. Please refer to Sheet 4 of the engineering plans for locations and CSWPPP forms in the back of this section for reporting purposes. Vehicles, construction equipment, and/or petroleum product storage/dispensing: • All vehicles, equipment, and petroleum product storage/dispensing areas will be inspected regularly to detect any leaks or spills, and to identify maintenance needs to prevent leaks or spills. • Any onsite fueling of construction equipment shall be done from truck mounted refueling equipment that shall also provide the necessary containment and spill clean up equipment per the Washington State Department of Ecology requirement. • Spill prevention measures, such as drip pans, will be used when conducting maintenance and repair of vehicles or equipment. • In order to perfonn emergency repairs on site, temporary plastic will be placed beneath and, if raining, over the vehicle. • Contaminated surfaces shall be cleaned immediately following any discharge or spill incident. Chemical storage: • Any chemicals stored in the construction areas will conform to the appropriate source control BMPs listed in Volume IV of the Ecology stormwater manual. In Western September 20, 2007 Job #04-257 Page 8-3 • • • Martin Property-Technical Information Report WA, all chemicals shall have cover, containment, and protection provided on site, per BMP Cl53 for Material Delivery, Storage and Containment in SWMMWW 2005. • Application of agricultural chemicals, including fertilizers and pesticides, shall be conducted in a manner and at application rates that will not result in loss of chemical to stonnwater runoff. Manufacturers' recommendations for application procedures and rates shall be followed. Demolition: • Process water and slurry resulting from sawcutting and surfacing operations will be prevented from entering the waters of the State by implementing Sawcutting and Surfacing Pollution Prevention measures (BMP Cl 52). Concrete and grout: • Process water and slurry resulting from concrete work will be prevented from entering the waters of the State by implementing Concrete Handling measures (BMP C 151 ) . • A specific washout area for trucks and tools and a plan for the disposal of any collected slurries shall be submitted to and approved by King County prior to and concrete placement operations. Sanitary wastewater: • Portable sanitation facilities will be firmly secured, regularly maintained, and emptied when necessary. Solid Waste: • Solid waste will be stored in secure, clearly marked containers. Other: • Other BMPs will be administered as necessary to address any additional pollutant sources on site . September 20, 2007 Job #04-257 Page 8-4 re (. Develop a plan for lmplementJng each BMP. Describe the steps necessary to Implement the BMP (I.e., any constructJon or design), the schedule for completing those steps (list dates), and the rson s res nslble for Im lementatlon. BMPs Good 1. Description of Actlon(s) Required for Im lamentation Scheduled MIiestone and Completion Date(s) Person Responsible for Action Housekeeping ..., ________ .., _________ .., ______ -t 2. 3 Preventive 1. Malntanance 2. 3. 4. Splll 1. Prevention and 2. Emergency Cleanup 3. lnepectlons 1. 2. 3. 2005 Surface Water Design Manual (CSWPP Forms) Page 1 1/1/2005 List materials handled, treated, stored, or disposed of at the project site that may potentially be exposed to precipitation or runoff. Stored Material t>u 2005 Surface Water Design Manual (CSWPP Forms) Ukellhood of contact with stormwater If Yes, describe reason Page 1 Past Spill or Leak Yes No 1/1/2005 • • Potential Stormwater Pollutant Stonnwater Pollutant Source 2005 Surface Water Design Manual (CSWPP Forms) • Ukellhood of pollutant being present In your stormwater discharge. If yes, explain Page 1 • • ~~i~€t~;~?:~~L,;7;;JJ~l~i:i!;; ~JtJ' List all spills and leaks of toxic or hazardous pollutants that were significant but are .l!S!l llmlted to, release of s!!! or hazardous substances in excess of reportable quantities. Although not required, we suggest you fist spills and leaks of non-hazardous matsrials. Date (month/day/yea r) Location (as indicated on site map) Type of Material Description auantrty I Source , If Known 2005 Surface Water Design Manual (CSWPP Forms) Reason for Spill/Leak Response Procedure Amount of Matsrial Recovered Matsrial No longer exposed to Stal mwater (Yes/No) Page 1 Preventive Measure Taken •• Describe the annual training of em ,fll Training Topics 1.) LINE WORKERS Spill Prevention and Response Good Housekeeping Material Management Practices 2.)P2TEAM: SWPPP Implementation Monitoring Procedures Brief Description of Training Program/Materials (e.g., film, newsletter course) 2005 Surface Water Design Manual (CSWPP Forms) Page 1 ,se. Schedule for Training (list dates) Attendees •• 'ces. 1/1/2005 • • Martin Property-Technical Information Report 9 BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATION OF COVENANT 9.1 Bond Quantities A Site Improvement Bond Quantity Worksheet has been provided at the end of this section. 9.2 Facility Summaries Please see the Facility Summary Sheet at the end of this section and the Pond Details at the end of Section 4 of this report. 9.3 Declaration of Covenant September 20, 2007 Job #04-257 Page 9-1 • Site Improvement B~ Quantity Worksheet Web date-1/2005 @King County Department of Development & Environmental Services 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 206-296-6600 TTY 206-296-7217 Project Name: Martin Pro~ Location: SE 125th Street and 146th Pl SE Clearing greater than or equal to 5,000 board feet of timber? ~~~~~~yes If yes, Forest Practice Permit Number. (RCW76.09) Page 1 of9 ,' bo~uanlityworksheet 6_20_07.xfs x no For alternate formats, call 206-296-6600. Da1e: Project No.: .Activity No.: 6/20/2007 L05P0019 L07SR015 Note: All prices include labor, equipment, materials, overhead and profit Prices are from RS Means data adjusted for the Seattle area or from local sources if not induded in the RS Means database. Unit prices updated: 02/12/02 Ver: ).04122/02 Report Oate,..&29/2007 • • • Site Improvement Bond Quantity Worksheet Web date~1/2005 Reference# EROSION/SEDIMENT CONTROL Number Backfill & compaction-embankment ESC-1 Check dams, 4" minus rock ESC-2 SWDM 5.4.6.3 Crushed surfacing 1 1/4" minus ESC-3 WSDOT 9-03 9(3) Ditching ESC-4 Excavation-bulk ESC-5 Fence. silt ESC-6 SWDM 5.4.3.1 Fence. Temporary (NGPE) ESC-7 Hydroseeding ESC-8 SWDM 5.4.2.4 Jute Mesh ESC-9 SWDM 5.4.2.2 Mulch. by hand, straw, 3" deep ESC-10 SWDM 5.4.2.1 Mulch, by machine. straw. 2" deep ESC-11 SWDM 5.4.2.1 Piping, tempora,y, CPP, 6" ESC-12 Piping, temporary. CPP, 8" ESC-13 Piping, temporary, CPP, 12" ESC-14 Plastic covering, 6mm thick. sandbagged ESC-15 SWDM 5.4.2.3 Rip Rap, machine placed; slopes ESC-16 WSDOT 9-13.1 (2) Rock Construction Entrance. 50'x15'x1' ESC-17 SWDM 5.4.4.1 Rock Construction Entrance. 100'x15'x1' ESC-18 SWDM 5 .4 .4.1 Sediment pond riser assembly ESC-19 SWDM 5.4.5.2 Sediment trap, 5' high berm ESC-20 SWDM 5.4.5.1 Sed. trap, 5' high, riprapped spillway berm section ESC-21 SWDM 5.4.5.1 Seeding, by hand ESC-22 SWDM 5.4.2.4 Sodding, 1" deep, level ground ESC-23 SWDM 5.4.2.5 Sodding, 1" deep, sloped ground ESC-24 SWDM 5.4.2.5 TESC Supervisor ESC-25 Water truck, dust control ESC-26 SWDM5.4.7 ~--····!!f·· ·. ·.;• ~ ~ -.. .-,,..·. -.·,··· ·~ '•.;• . .,.a•'.]'-···J Page 2 of9 boilmruanlityworksheet 6_20 _ 07.xls Unit Price Unit Quantity $ 5.62 CY 3400 $ 67.51 Each 13 $ 85.45 CY $ 8.08 CY 100 $ 1.50 CY 1406 $ 138 LF 117 $ 138 LF 277 $ 0.59 SY 9680 $ 1.45 SY $ 2.01 SY $ 0.53 SY 9680 $ 10.70 LF $ 16'.10 LF $ 20.70 LF $ 2.30 SY $ 39.08 CY $ 1,464.34 Each $ 2,928.68 Each 1 $ 1,949.38 Each 1 $ 17.91 LF $ 68.54 LF 90 $ 0.51 SY $ 6.03 SY $ 7.45 SY $ 74.75 HR 40 $ 97.75 HR 20 ..:: ·.-·· -·-.· ' t; .. • . .. ,.· .. · . • _·;.~ • :. ',c -'' Each ESC SUBTOTAL: 30% CONTINGENCY & MOBILIZATION: ESCTOTAL: COLUMN: #of Applications Cost 1 19108 1 878 1 808 1 2109 1 161 1 382 1 5711 .1 5130 1 2929 1 1949 1 6169 1 2990 1 1955 '-: .... ~-.:.,.. ,,,..;,;--c. -.;·, . ,. ·:--,, •', .,,. .. '. ,,.; $_ 50,279.61 $ 15,083.88 $ 65,363.49 A Un~ prices updat".(I: 02/12/02 Ver. ,04/22102 Reoort Dat,,,-ofa9/2007 • Site Improvement • Quantity Worksheet Web./21/2005 J(,,6i~ · •, FutuNl'l'Ubllc Prl¥ala ·· . ::b~~··· ·-· ~i.-oiii+£' ,c':,~., :• "•,.,: :i;i,ii:'"'}i0~i.,i;~_. ··• . •.,,: :? .. .. ~_:}t~i-~./~j . : .. :,.,, .:\-.. ;> tf.""" : . ';'~~i~t; ··~ -~~·:••;;,_:_;_v~ .•• : • 1-,::.,•..,:•T·~;;., ~..,s),:::··:f"•;".-,• :,¢_.._.,,.. ,•,-.::''""' ·-..~,, ·.:.· ,,,. , .'.;· ""' . ·-·rr;. ·, -• :.· -•;,-,.,;-~ GENERAL ITEMS No. Backfill & Compaction-embankment GI -1 s 5.62 CY Backfill & Compaction-trench GI -2 $ 8.53 CY 20 170.60 446 3,804.38 Clear/Remove Brush, by hand Gl-3 $ 0 36 SY Clearing/Grubbingffree Removal GI -4 $ 8.876.16 Acre 3 26,628.48 Excavation -bulk GI -5 $ 1.50 CY 2000 3.000.00 2300 3,450.00 Excavation -Trench GI -6 s 406 CY 20 81.20 446 1.810.76 Fencing. cedar, 6' high Gl-7 s 18.55 LF Fencing. chain link, vinyl coated. 6' high GI -8 $ 13.44 LF 600 8.064.00 Fencing. chain link, qate. vinyl coated. 2 Gl-9 $ 1.271 81 Each 1 1 .271 81 Fencing, split rail. 3' high Gl-10 $ 12.12 LF Fill & compact -common barrow GI -11 $ 22.57 CY Fill & compact -gravel base GI -12 $ 25.48 CY Fill & compact -screened topsoil Gl-13 $ 37.85 CY Gabion. 12" deep, stone filled mesh GI -14 s 54.31 SY Gabion. 18" deep. stone filled mesh Gl-15 $ 74.85 SY Gabion, 36" deep. stone filled mesh Gt-16 s 132.48 SY Grading, fine, by hand Gl-17 s 2 02 SY Grading, fine, with grader GI -18 s 0 95 SY 612 581.40 Monuments. 3' long GI -19 $ 135 13 Each 5 675 65 Sensitive Areas Sign Gl-20 $ 2.88 Each Sodding. 1" deep, sloped ground GI -21 $ 7.46 SY Surveying. line & grade GI -22 s 788.26 Dav 2 1.576.52 Surveying, lot location/lines Gl-23 $ 1.55664 Acre 3 4,669 92 Traffic control crew ( 2 ftaggers) Gl-24 s 85 18 HR Trail, 4" chipped wood Gl-25 $ 7.59 SY TraiL 4" crushed cinder Gl-26 s 8.33 SY Trail, 4·· top course Gl-21 s 8 19 SY Wall, retaininQ. concrete GI -28 s 44 16 SF Wall, rockery GI -29 $ 9.49 SF 822 7,800.78 Page 3 of9 SUBTOTAL 251.80 20,784.52 42,549.18 Unij prices upd;;,' '· 02/12/02 "Ki,i A authorizes only one bond reduction. Vt .: 4/22102 bondouanlitvloon<shee16 20 01.x1s Reoort Oa!B'.'6/29/2007 • Site Improvement B. Quantity Worksheet Web.1/2005 Bond -~ mp da "1~·,..,.-. .~!--,-,~:,~ --~t" , ' ~ ~ -·:1,:··· -~ . ···. ~-.,. ; . ...:: {.. ·, "~. ;-.,,. .. ;.,f}:'~·, .... . ROAD IMPROVEMENT No .. AC Grindina. 4'wide machine< 1000sy RI -1 AC Grindina, 4' wide machine 1000-2001 Rl-2 AC Grinding, 4' wide machine> 2000sy RI -3 AC Removal/Disposal/Repair Rl-4 Barricade, tvne I RI-5 Barricade. tvpe Ill ( Permanent ) RI -6 Curb & Gutter. rolled RI -7 Curb & Gutter, vertical Rl-8 Curb and Gutter, demolition and disposa RI -9 Curb, extruded asphalt RI -10 Curb, extruded concrete RI -11 Sawcut, asphalt, 3" depth RI -12 Sawcut, concrete, per 1" depth RI -13 Sealant, asphalt RI -14 Shoulder, AC. ( see AC road unit price } RI -15 Shoulder, aravel. 4" thick RI -16 Sidewalk, 4" thick Rl-17 Sidewalk. 4" thick, demolition and dispos RI -18 Sidewalk, 5" thick RI -19 Sidewalk, 5" thick, demolition and dispos Rl-20 Siqn, handicap RI -21 Stripinq, per stall RI -22 Striping, thermoplastic, ( for crosswalk ) Rl-23 Striping, 4" refledorized line Rl-24 Page 4 of 9 'l<l,j . A authorizes only one bond reduction. bondauantitvworksheet 6 20 07.Jds . >.· $ 23.00 $ 5.75 $ 1.38 $ 41.14 $ 30.03 $ 45.05 $ 13.27 $ 9.69 $ 13.58 $ 2.44 $ 2.56 $ 1.85 $ 1.69 $ 0.99 $ . $ 7.53 $ 30.52 $ 27.73 $ 34.94 $ 34.65 $ 85.28 $ 5.82 $ 2.38 $ 0.25 SUBTOTAL ·-.. :~· -. .· .. ,.":.:,: ·.-·,: ._.>·-<· .··· . . ., ' -- SY SY SY SY 308 12,671.12 LF LF LF 220 2,919.40 842 11.17334 LF 296 2.868.24 LF 40 543.20 LF LF LF 220 407.00 LF LF 220 217.80 SY SY SY 162 4,944.24 SY SY 227 7,931.38 SY Each Each SF LF 24,571.00 19,104.72 Unit prices upda•-"· 02/12/02 ' VE . 4/22102 RP.nnrt ~!'ll?M7 • Site Improvement. Quantity Worksheet Web.1/2005 1,,-r ti 7 . 3 !!RT '}~~~;~'d:~,;.• ROAOiSURICACllilG:, (4"~~s~~" For KCRS '93, (add~ional 2.5" base) add! RS -1 I S 3.60 SY I AC Overlay. 1.5" AC I RS -2 $ 7.39 SY AC Over1ay. 2" AC RS-3 AC Road, 2", 4" rock, First 2500 SY I RS -4 s 8.75 $ 17.24 SY SY I AC Road. 2'', 4" rock, O!)c over 2500SY I RS -5 $ 13.36 SY AC Road, 3", 4" rock. First 2500 SY RS-6 $ 19.69 SY AC Road. 3", 4" rock. Qty. over 2500 SYI RS -7 s 15.81 SY AC Road. 5", First 2500 SY I RS -8 $ 14.57 SY AC Road, 5", Qty. Over 2500 SY I RS -9 $ 13.94 SY AC Road, 6", First 2500 SY !Rs -1 $ 16.76 SY AC Road, 6". Qty. Over 2500 SY )Rs -1 $ 16.12 SY As_e_halt Treated Base. 4~ thick E_s: 14 $ 9.21 SY Gravel Road, 4" rock. First 2500 SY ~ $ 11 -41 SY Gravel Road, 4" rock, Qty. over 2500 SYjRS -1-= s 7 53 SY PCC Road, 5". no base, over 2500 SY IRS -1 $ 21.51 SY PCC Road! 6". no base. over 2500 SY )Rs -1 s 21.87 SY Thickened Edge IRS -1 $ 6.89 LF Page 5 of 9 SUBTOTAL *K~, A authorizes only one bond reduction. bondauantilYwoo<shee 6 20 07.xls . .. ··.. Futill9 Public . . .. . Prfyate. .. Bond Reduction• ~-~· -~f;~~tl:tt;~~~I';~,~~~ '"'"" F.oi$9J .C c:~; <ff'-'.Z,,""'"-"i',!.':_-,;;,,~is-Ni'ltii'-~ :;,iii ... ~ _;S' . _,,_...,..,,..,......, ... s -., .. ~--'" 3691 1,328.401 18081 6,508.80 3691 6.361 561 18081 31,169.92 7,689.96 37,678.72 ~~~~IT~ii3~:~~~~:.t_~;_§~4l~¥~~:1~:~:.::>5~_, .. ,~,_,~:.:·· I I Un~ prices upda•· •· 02/12/02 V1 ,: 4122102 Reoort Dine:"'6129/2007 • Site Improvement • Quantity Worksheet Web .21/2005 "".8. bRAINAGEl.'---c .. -'·· • .. ;._",""':·•• -.. , T:t •..:..-..•.;.. . -·.,.,.~i ···-·.-..... ac-... ,.-""··,·.<.:•-,;,,-;a.,..;..,: :,,;; . •• ,..-":•,:; ~, .. · :: ,•;"" ·;.·.-.,,:.:;~·.: •,:;;·-r -;1-;--,·';.;~ ... .-;"'·: · c·,:.r,,,j_;,£-~=;'~~~ Access Road, RIO 0-1 $ 16.74 SY 1-J.__ -__J_ _4a_ -7_.097.761 Bollards -fixed 0-2 $ 240.74 Each Bollards -removable 0-3 $ 452.34 Each • (CBs include frame and lid} -;i--------:;r ---T-·r-CB Type I 0-4 $ 1.257 64 Each 4 5.030.56 11 13.834.04 CB Type IL 0 -5 $ 1.433 59 Each CB Type ll. 48" diameter 0-6 $ 2.033.57 Each I I I 41 8.134.28 for additional depth over 4' 0-7 $ 436.52 FT Each f-1 ----I 11 CB Type JI. 54" diameter 0-8 $ 2.19254 2.192.54 for additional depth over 4' 0-9 $ 486.53 FT CB T vpe Ir. 60" diameter 0. 10 $ 2.351 52 Each for additional depth over 4' D -11 $ 536.54 FT CB Type II, 72" diameter D -12 $ 3.212 64 Each for additional depth over 4' 0 · 13 $ 692.21 FT ~ --- Through-curb Inlet Framework (Add) D-14 $ 36609 Each 1 366.09 --·--T --T 10T ---- Cleanout. PVC, 4" 0 · 15 $ 130.55 Each 1.305.50 Cleanout. PVC, 6" 0 -16 $ 17490 Each I I 13\ 2.273.70 creanout. PVC. 8" D • 17 $ 224.19 Each ' Culvert, PVC, 4" D · 18 $ 8.64 LF Culvert, PVC, 6" 0-19 $ 12.60 LF Culvert. PVC, 8" 0-20 $ 13.33 LF Culvert. PVC. 12" 0-21 $ 21.77 LF Culvert, CMP, 8" 0-22 $ 17.25 LF Culvert. CMP, 12" 0-23 $ 26.45 LF Culvert, CMP, 15" 0-24 $ 32.73 LF Culvert, CMP, 18" 0-25 $ 37.74 LF Culvert, CMP. 24" 0-26 $ 53.33 LF Culvert, CMP, 30" · 0-27 $ 71.45 LF Culvert, CMP, 36" 0-28 $ 112.11 LF Culvert, CMP, 48" D-29 $ 140.83 LF Culvert, CMP, 60" 0-30 $ 235.45 LF Culvert. CMP, 72" 0-31 $ 302.58 LF Page 6 of 9 SUBTOTAL 5,396.65 31,258.62 _3~ '' -----Untt prices updat"". 02/12/02 *Kl .\ authorizes only one bond reduction. Ve 4122102 bo~heel 6_20_07.xls -· Reoort D"'='612912007 • DRAINAGE CONTINUED No. Culvert. Concrete. 8" D-32 Culvert. Concrete, 12" D-33 Culvert. Concrete. 15" D-34 Culvert, Concrete, 18" D-35 Culvert, Concrete. 24" D-36 Culvert, Concrete, 30" D-37 Culvert. Concrete, 36~ D-38 Culvert. Concrete. 42" D · 39 Culvert. Concrete. 48" D-40 Culvert. CPP. 6" D-41 Culvert. CPP. 8" D-42 Culvert. CPP, 12" D-43 Culvert, CPP, 1 S" D-44 Culvert, CPP. 18" D-45 Culvert. CPP. 24" D-46 Culvert. CPP, 30" D -47 Culvert, CPP, 36" D -48 Ditchinc 0-49 Flow Dispersal Trench (1,436 base+) D-50 French Drain (3' depth) D-51 Geotextile, laid in trench, pofvnropylene D-52 Infiltration pond testing D-53 Mid-tank Access Riser. 48" dia. 6' deep D-54 Pond Overflow Spiflwav D-55 Restrictor/Oil Separator. 12'' D-56 Restrictor/Oil Separator, 15" D-57 Restrictor/Oil Separator. 18" D-58 Riorap, placed D-59 Tank End Reducer (36" diameter) D-60 Trash Rack, 12" D-61 Trash Rack, 15" D-62 Trash Rack, 18" D-63 Trash Rack, 21" D-64 Page 7 of 9 "K\, , A authorizes only one bond reduction. bonilliu'antitywori<sheet 6_20_07.xls Site Improvement B. Quantity Worksheet Web.1/2005 Existing Future Public Private Bond Reduction* Right-of-way Road Improvements Improvements & Drainage Faclllties a':"!..I Unit Price Urnt Quant Cost Quant. Cost Quant Cost Com Cost $ 21 02 LF $ 3005 LF $ 37.34 LF $ 44.51 LF $ 61 07 LF $ 104.18 LF $ 137.63 LF $ 158.42 LF $ 17594 LF $ 10.70 LF 587 6280.9 $ 16.10 LF $ 20.70 LF 36 745.2 803 s 16,622.10 $ 23.00 LF $ 27.60 LF s 36.80 LF $ 48.30 LF $ 55.20 LF $ 8.08 CY $ 25.99 LF 100 4035 s 22.60 LF s 2.40 SY s 74.75 HR $ 1,605.40 Each $ 14.01 SY $ 1,045.19 Each 1 1045.19 $ 1,095.56 Each $ 1,146.16 Each $ 39.08 CY $ 1,000.50 Each s 211.97 Each $ 237.27 Each s 268.89 Each s 306.84 Each SUBTOTAL 745.2 17667.29 10315.9 Unrt prices upda•~~-02/12102 Vi : 4122/02 Reoort D<>=1l/2912007 • Site Improvement • Quantity Worksheet Web.12.1f.l005 I .. •. , .. ,0 1:~f(:~€T~t; •... ,.;.. :{i<~,,:t·r :~;;~~"'*"'-, ;;-xv<· ? ,, . -.. ----------- No. 2" AC, 2" top course roc.k & 4" borrow PL-1 $ 15.84 SY 2" AC, 1.5" too course & 2.5" base cou PL· 2 $ 17.24 SY 4'' select borrow PL· 3 $ 4.55 SY 1.5" to.e_ course rock & 2.5" base course PL-4 $ 11.41 SY ,-r·;tg• ...:•c;""_;;·~< (Such as detention/water quality vaults.) No. WI -1 Each Wl-2 SY Wl-3 CY Wl-4 LF Wl-5 FT Wl-6 WI· 7 Wl-8 Wl-9 WI-10 SUBTOTAL SUBTOTAL (SUM ALL PAGES): 30% CONTINGENCY & MOBILIZATION: Page 8 of 9 ·K~ . ...__ A autholizes only one bond reduction. bonaauantit'IWOncsheet 6 20 07.xls GRANDTOTAL: COLUMN: -·_: ,.:_,._-" . ,,_.;,.n:" '·-·-_. di.~-;_~,¢, . -••• -. J •.• ·:_.:.;', :._, -;,.,.. 38,654.61 126,493.87 56,444.28 11,596.38 37,948.16 16,933.28 50,250.99 164,442.03 73,3n.56 B C D E Unrt prices upda•· ,. 02/12/02 VE ; 4/22102 ~Dl'VV't f'\2ff:i""'PJ?onN\7 • Site Improvement s!d Quantity Worksheet Web da~/21/2005 Original bond computations prepared by: Name: Rebecca Cushman Data: 6/20/2007 PE Registration Number: 37359 Tel. II: 425 821-8448 Firm Name: Triad Associates Address: 12112 115th Ave NE, Kirkland, WA 98034 Project No: LOSP0019 ROAD IMPROVEMENTS & DRAINAGE FACILITTES RNANCIAL GUARANTEE REQUIREMENTS Stabilization/Erosion Sediment Control (ESC) Existing Right-<:>f-Way Improvements Future Public Road Improvements & Drainage Facilities Private Improvements Calculated Quantity Completed Total Right-<:>f Way and/or Site Restoration Bond*,- (First $7,500 of bond* shall be cash.) Performance Bond* Amount (A+B+C+D) = TOTAL Reduced Performance Bond* Total *** Maintenance/Defect Bond* Total PERFORMANCE BOND" AMOUNT (A) $ 65,363.5 (B) $ 50.251.0 (C) $ 164,442.0 (D) $ _n..3n.s (A+B) $ 115,614.5 (T) $ 353,434.1 M1nmum bond* amount ts $1000. PUBLIC ROAD & DRAINAGE BOND" AMOUNT MAINTENANCE/DEFECT BOND* REQUIRED AT RECORDING OR TEMPORARY OCCUPANCY ... (E) $ Tx0.30 $ 106,030.2 OR (T-E) $ 353,434.1 Use larger of fx:!o'll, 0< (f-E) (B+C) x 0.25 = $ 53,673.3 NAME OF PERSON PREPARING BOND" REDUCTION: Date: * NOTE: The word "bond" as used in this document means any financial guarantee acceptable to King County. -NOTE: KCC 27 A authorizes right of way and site restoration bonds to be combined when both are required. The restoration requirement shall include the total cost for all TESC as a minimum, not a maximum. In addition, corrective work, both on-and off-site needs to be induded. Quantities shall reflect worse case scenarios not just minimum requirements. For example, if a salmonid stream may be damaged, some estimated costs for restoration needs to be reflected in this amount The 30% contingency and mobiflZSOOn costs are computed in this quantity. ·-NOTE: Per KCC 27 A, total bond amounts rematning after reduction shall not be less than 30% of the original amount {T) or as revtsed by major design changes. SURETY BOND RIDER NOTE: If a bond rider is used, minimum additional performance bond shall be I $ 237,819.6 ((C+D)-E REQUIRED BOND" AMOUNTS ARE SUBJECT TO REVIEW AND MODIFICATION BY DOES Paw-.-Q of 9 Unit prices updated: 02/12/02 bo~antityworksheet 6 _ 20 _ 07 .xls Check out the DOES Wt Verr A/22/02 Report Oatb.-o12.9/2007 !eat www.metmkc.goylddes /'. • j i I = = I i I ' 11 'I I SE 1/4, SE 1/4, SECTION 10, TOWNSHIP 23N., RANGE 5E., W.M. 2 -I I I 1.- ---+---------<HO I • / ' . SCALE: 1· = 20' • • • ---------· I I I PQE.~N 1111 \ car, -1 • ~ .-I -,,., , I --F-----------~ 111 I I • FB.!!111 ... _____ ., _____ w -4/IO ~ <HO ,~9'4!L • &IEIIOllD 1U -ctUIT'f -/'I.AT ' -OCIMT'f aL --,_ _, ..__ Ot44J A RD4l I/IIIC _, R& (IF -,-W£ lil.44 ·o,,ocms ID M4lfTMf N 1111M Mmlt C4n:H BASIN L.OCAJXW ANO EUVA1DI TAa£ 'iil'blil a, ~.llG 1111".SGO ....... ,r IC f&J/5 ,,.am E ""'1Z.Ma ac.-.,,,.44aoo r1Cm.o .... iUi" "' II'/ flllJIII --.. Jtp #I.II trlCfMM ~· IUJ'Lt flllJIII IMfJ) _ .. ... r1C4#.JI rr1C...- f~m E#IM•Mr •.aa tr IC-- ~ ..,..,.,., ,,..,..mf E~ ..... ,r IC 44&r6 f!f!¥"m E,.,..,_ ,. ... ,r IC f#,.,. , ... 441..U ~Jr> flftl, a, DIS9# u-,.s Sllt1IM IS M'l"IIIM'411' Me MIY 11(1( • AOCIA4.-tllf AU. MIWlftC IT IS H' CXllfllllCIIII' ,..,,,,_,,., JU ,.. lllll'l' ~-a, 111118,,.. ft),,_..""'~ 'QI /fl/IT C4IL t410 Of -#OT USS IN4II 11D A.tL ..asA41S ~-DIQIIII-INEIIE' MIi' flat 110111D Cl1ll1D MotY • L«.48. FMJII/£ JI> 00 ., <XIIIID --llmlM1MI. llll'MJ canr. --liilii Iii'-1--i&IUrllU---- o2001-.-· 111121•,-.• --------_ .... --! I ; ).. .... I ~ Ii ~ .._ 1! ~ (lj ~ i ~, ~ :i:: .._ ~ f !t ~ ~ I: i i ~ Q: ; I ! ------111111 ... 04-267 -· 9.12 • KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL STORMW ATER FACILITY SUMMARY SHEET ODES Permit Lo5 /JtJO/ 9 Number -------- (provide one Stormwater Facility Summary Sheet per Natural Discharge Location) Overview: Project Name / ---f,Y'll..u..uA=IL=<b-L..Cµ"'---'-p=~~f'---'e&.::cl ...... · ==-..-,_ _________ Date 'i? /.1-frio 7 Downstream Drainage Basins Major Basin Name {!,G])AL?t J~ Immediate Basin Name lau,.>,Cl?.. CCD41Z,, 'f2rvt:)'2.. Flow Control: Flow Control Facility Name/Number -d"'-·"-'-'t<.'-'I ,:)=--_ ___,£'.?6""-''-'-li."'4''------ Facility Location £c,c..rn-1 u)e-s, {'12,u,J1;;7< Of'-: S 1 ~ If none, Flow control provided in regional/shared facility (give location) ______________ _ No flow control required Exemption number General FaclUty Information: Type/Number of detention facilities: Type/Number of infiltration facilities: / ponds ponds vaults tanks --- ---tanks trenches Control Structure Location ;1 ~,,c Oi (()CSr: (!o,e../JQL tJr 170,J /~ Type of Control Structure f-'ltc f-1 Number of Orifices/Restrictions , I ,, Size of Orifice/Restriction: No. 1 _,.__/-_,_1;L,7 ___ _ No. 2 _..,__(_-4>k"'--~ __ No. 3 I-,;;, N<7rt..t\ N6:-4 ....-1.c..' ----- Flow Control Performance Standard {;o t,/,k-g,d ,4 T7ut.' Eir21<) ( Lel/e:LZ...J 2005 Surface Water Design Manual 1 1/1/05 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL • Live.Storage Volume t,o b 'Z:LCF U:2' I I Depth 5,.S-Volume Factor of Safety • Number of Acres Served 1, (p5 A C- Number of Lots _ _,_l~-:3<------- Dam Safety Regulations (Washington State Department of Ecology) Reservoir Volume above natural grade -----!'9-'-=--i-.~u.-- Depth of Reservoir above natural grade ___ _,_tf._/J,_,.,~=-__ Facility Summary Sheet Sketch All detention, infiltration and water quality facilities must include a detailed sketch. (I 1 "x 17" reduced size plan sheets may be used) • 1/1/05 •' 2005 Surface Water Design Manual 1 1• KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL Water Quality: Type/Number of water quality facilities/BMPs: biofiltration swale large) above --- (regular/wet/ or continuous inflow) large) _,.__ combined detention/wetpond --- (wetpond portion basic or large) combined detention/wetvault ___ filter strip lo flow dispersion ___ farm management plan ___ landscape management plan ___ oil/water separator (baffle or coalescing plate) Liner? --------- catch basin inserts: --- ___ sand filter (basic or large) ___ sand filter, linear (basic or ___ sand filter vault (basic or sand bed depth. ___ (inches) stormwater wetland --- storm filter --- --- ___ wetpond (basic or large) ___ wetvault ls facility Lined? If so, what marker is used Manufacturer ___________________ _ ___ pre-settling pond ___ pre-settling structure: Manufacturer __________________ _ ___ high flow bypass structure ( e.g., flow-splitter catch basin) source controls --- Design Information Water Quality design flow --=------------ Water Quality treated volume (sandfilter) _______ _ Water Quality storage volume (wetpool) ti, '2512 CF Facility Summary Sheet Sketch 2005 Surface Water Design Manual I ii /05 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL • All detention, infiltration and water quality facilities must include a detailed sketch. (I I "xi 7" reduced size plan sheets may be used) • • 1/1/05 2005 Surface Water Design Manual 4 After Recording return to: DECLARATION OF COVENANT AND GRANT OF EASEMENT IN CONSIDERATION of the approved King County----------- permit for application No. ----------relating to real property described as ·• follows:. ______________________________ _ The undersigned as Gran tor( s ), declares that the above described property is hereby subject to an easement for a system of stormwater facilities and BMPs, and hereby· dedicates, covenants and agrees as follows: I. King County shall have the right to ingress and egress over those portions not contained in Exhibit "A" to access such easement area for inspection of and to reasonably monitor the performance, operational flows, or defects in accordance with and [as presented in King County Code Section 9.04.120]. 2. If King County determines that maintenance or repair work is required to be done to the system, the Director of the Water and Land Resources Division of the King County • Department of Natural Resources shall give notice of the specific maintenance and/or repair work required pursuant to K.C.C 9.04.120. The Director shall also set a reasonable time in which such work is to be completed by the Grantor(s), its heirs or assigns. If the above required maintenance or repair is not completed with the time set by the Director, the County may perform the required maintenance or repair. Written notice will be sent to the Grantor(s) stating the County's intention to perform such maintenance. Maintenance work will not commence until at least seven (7) days after such notice is mailed. If, within the sole discretion of the Water and Land Resources Division Director, there exists an imminent or present danger, said seven (7) day notice period will be waived and maintenance and/or repair work will begin immediately. ;. 3. If at any time King County reasonably determines that any existing drainage facility or flow control BMP creates any of the conditions listed in K.C.C. 9.04.130 and herein incorporated by reference, the Water and Land Resources Division Director may take measures specified therein. 4. The Grantor(s) shall assume aU responsibility for the cost of any maintenance and for repairs to the system. Such responsibility shall include reimbursement to the County within thirty (30) days of the receipt of the invoice for any such work performed. Overdue payments will require payment of interest at the current legal rate as liquidated damages. If legal action ensues, the prevailing party is entitled to costs or fees 5. The Grantor(s) is (are) hereby required to obtain written approval from the Water and Land Resources Division Director of the King County Department of Natural Resources prior to filling, piping, cutting, or removing vegetation ( except in routine landscape maintenance) in open vegetated drainage facilities (such as swales, channels, ditches, ponds, etc.), or performing any alterations or modifications to the drainage facilities contained within said drainage easement. Any notice or consent required to be given or otherwise provided for by the provisions of this Agreement shall be effective upon personal delivery, or three (3) days after mailing by Certified Mail, return receipt requested. 2 • 6. This agreement constitutes the entire agreement between the parties, and supercedes all prior discussions, negotiations, and all agreements whatsoever whether oral or written. This covenant is intended to protect the value and desirability of the real property described above, and shall insure to the benefit of all the citizens of King County, and shall be binding on all heirs, successors and assigns. OWNER OWNER STATE OF WASHINGTON ) COUNTY OF KING )ss. On this day personally appeared before me: , to me known to be the individual(s) -----------,-------,-...,---,-:---described in and who executed the within and foregoing instrument and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes therein stated. Given under my hand and official seal this __ day of _______ , 20_. Printed name Notary Public in and for the State of Washington, residing at ____________ _ My appointment expires-------- 3 • • • Martin Property-Technical Information Report 10 OPERATIONS AND MAINTENANCE Publicly maintained system . September 20, 2007 Job #04-257 Page 10-1 ------------------------------------------ ® King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, WA 98055-1219 TO: Tham Yasmoothr FM: Joanne Carlson RE: Project Name -Hfµ_r;_~-1·-_____ Project No. l-.o/J8PIJ Plan Approval package: ~pproved Plans for Road & Drainage /1/.i_ Approved Structural Plan L Approved Street Tree Plan / Approved Tree Retention Plan /Approved TIR with bond quantity worksheet _L Variances: KCRS/SWM Adjustments 'f :Ifj Jtl/1,; 2 ~o,tl ""'1111111 ' ********************************************** Approved Mylars Other documents: Right of way condition letter Structural conditions Form Letters/LUIS checklist + A05PM260 ARTERIALS S-T-R ' . ,1' \.,/ QSUNES 1\/. SEC:UNES '1\/ lWPUNES /\J su- W..Bodlea Paraila A/ Otyl!amns a... 0 1000 2.000 3000 «JOO Feel 1"'3333filel ® ICJng CGunty Tho--...... _ ... __ .,. --...J~°"::'J::·~-=-:slo-lO ..-.. --.,~-.. ... -·~-........... ., ::....~-=-.~:~ .... --~w~-...~•---«• ..--. .......... -., .. --...... --,.,.,_., .... _ .. _ ...... _ .. ..-..... .,.-...-.. Quty. Plol-.M 30, 2005; \\dcleeOOtl><Ot'GINv_~ A05PM260 2002 PHOTO S-T-R /\ /QSUNES '/S.J.SECUNES '/vlWPllNES N streets Wall/llloelea Pan:els Aer1a1 Phctoe · 2002 NClly~ Cities 0 100 1"220011181 200 Feel ® l(a,g County 1t'-r -~ ..i...,1 ::i~-=::=::=.-=:.=.~ ---t<lngOoony-... .-« __ .,,.,._. ..... -..cy.--ot,1glDIDh-d ['1 u=t"-= .. ~~:-=.:.~ ~~ 1 .t1· _____ liUlnot-....... -..... • . j ' .., =--=:.~a:-~.:.-::"::".,"=-, -onll'llmoplt~-by-~d Ooony r---'--'--·--•"•--·----... -r~"!• '"'~ ,1. • ~" . '-: 1._ ~ ,.. J II A05PM260 2005 SWDM Cltiel 0 400 Feel 1-.5001ea1 ® King County lho--..... '""' __ _....,oy l<i-9CCunly_..,,,,~d-ondloUjld lo -.-rdioo. K>v CCunly-no ..,._ ...... Gf~---Of~-i)1hl -..cy.--.. ..,.. .... _d --i<ir"41CCunly-...... -1or.., --.~.--.or-.._--._bul,..-ID,.,.. __ a<loll pdllo~tom .. _or_dlN- -........ laf-dllamopor-onllw...,1o....--i,y-,.-d Courq. Plol dale: .U 30, 2005; l'ddllll001\x01'clla\a,,_~ ii I n !ji,1u1 I Jj -I ]! i JteJaj 1 11 0 ~ 111 f! 1ll 11 !tr5It c.o f is 111111 ·111 ~ N I 1f flf ;11 I ~ I ,,, hll J I (i) i·' f l'lt ~ 0.. 0 Jf I l!f i ~<( ,.s~immhr· lilMHHti <( () <~:,~ <II({] 11 I ~ ::i I l A05PM260 ZONING NT'* fi Sc:hooi$'School Fadllllel S-T-R '• 'QSIJN6S ~SEQ.JI£$ ~ WaaBOdlea Riled RlghtHI-Way c:: Parcels CJParb aaes ~10-~.one0Upor10acres • A-35-~. one 0Upor36acra1 -F-Fu"lllt -M--.i RA-2.5 -Rural Ania , one DU por 5 acres AA.s -Rural /vea, one DU por 5 acras • RA-10 -,_... Ania, one DU per 10 acres UR· l.kllan Ra9ve. one DU per 5 ecns R-1 -Allldenllll, one DU per acre R-4 • FINldlnllal, 4 DU per acre R>-6 • ANICllnlll, 8 DU per acre R-8 -RNidlnlal, 8 DU per acre R-12-~.12DUpetacre R-18 • Reoldanllal, 18 DU pet acre -R-24 • --.ual, 24 DU per acre -R-48 • Raaiclerlaal, 48 OU pet acre :.. ":I NB.~ a..irlelS -CB. Cornnvllly~ -RS . ReQknf S..U- -0-0fflee 1-lnclllllr1al Natyl!ounclarles O 600 1000 1500 Feel 1 .. 1333leel ® King County ~:ti ---.... ____ 111' - -l<qOoulty-tn>moYortolyd.....,.nllo~., D ~--.1<1r,o°""'"Y-no __.., __ .,lff1111od._ .. .,. -I LJ~~:.i-..:.-:.~d ~."'*'9.-.-.«---I --..iu ... -....... --..... ..--a.v ....... -.. --d .. -1~ ' I ~ -..... _,,,,,_d.__.,_ """""-"'~-b\'-...-d Ooulty. F'IOI -Jul 30, 2005; l \ddae001l>t01'GINY_~ Parcel Number: 1023059383 Taxpayer: MARTIN KENNETH A Annexation: N/A Jurisdiction: Unincorporated King County Situs Address: 12439148TH AVE SE Postal City: Renton, 98059 Plat Name: ; Rec: nil Lot: N/A; Block: N/A Kroll Page: 805 E Thomas Bros. Page: 656 1/4-S-T-R: SE-10-23-5 Acres: 3.69 (160736 SqFt.) Current Zoning: R-4 Potential Zoning: Comp. Plan Land Use: um Assesso~s Open Space: N/A Commercial Use: N/A Number of Units: N/A Mobile Home: N Appraised Land Value: 140000 (2004), 415000 (2005) Appraised Improvements Value: 217000 (2004), 165000 (2005) Community Plan Area: Newcastle Unincorporated Area Council: Four Creeks Unincorporated Area Council School District: Issaquah School District 411 Fire District: 0025 Roads MPS Zone: 442 ($2918.00) Roads TCM Zone: 754 Waterfront: Water Service: Water Service Planning Area: King County Water District 90 Sewer Service: Airport Noise Remedy Program: N/A Bald Eagle Flag: N/A Council District (1996-2001 ): 12 David Irons Jr. (R) Council District (2002): 12 David Irons Drainage Basin: Lower Cedar River, WRIA 8 Police: King County, Pct: 3, Dist: F2 Service/Finance Strategy Area: Service Planning Snowload Zone: Standard Agricultural Production District: N Forest Production District: N Rural Forest Focus Area: N TDR Type: N/A TDR Status: N/A TDR Permit Number: NIA Building Inspection Area: N-7 Clearing Inspection Area: Bruce Engell Code Enforcement Inspection Area: Bill Turner ESA Inspection Area: Greg Sutton . Grading Inspection Area: Bruce Engell Land Use Inspection Area: Tim Cheatum Sens. Areas Notice(s) on Title: NONE Aquatic Areas Buffer: N Basin Condition: Low Flow Control Area: Conservation Flow Water Quality: Basic Critical Aquifer Recharge Area: None Area of Potential Wetland Influence: Y soc (® King County a:::mmlll lEmmlll ild§tii%4W Comments: Wi¥113,M By law this information may not be used for commercial purposes. --·-·-···-, .. ,. ... ,. .. ,. .. -Assessor Real .Property .. Records: --··-·--·-·----·· Parcel Number 1023059383 Taxpayer MARTIN KENNETH A ·-----·· ·----------· Account Number 102305938304 _.,_, ___ ,_,~,·-•••-·•·~---•~•-• -·--"~"·•-•··-··---··-,-·,--w•-••-···---------·--···-'"'·•·-•·• ---··-· -·~--·,-·-------· Tax Year 2004 Levy Code 6867 Tax Status TAXABLE Taxable Value Reason Appraised Land Value $140,000 Taxable Land Value NONE OR UNKNOWN $140,000 Appraised Improvement $217,000 Taxable Improvement Value $217,000 Value Taxpayer Parcel Number MARTIN KENNETH A --··· -· ··-··-· Account Number -•·-·-·-··-•·• ·--· -··-----"---··-•-• -·--· ---•· --•---·••w><•• • -·-• • "W •-••• ••• • •••-•-• "• , Tax Year 2005 ______ Levy Code •......•. Tax Status TAXABLE Taxable Value Reason Appraised Land Value $415,000 Taxable Land Value 1023059383 102305938304 6867 NONE OR UNKNOWN $415,000 Appraised Improvement $165,000 Taxable Improvement Value $165,000 Value Assessor Property Sales Records: Tip: Use the Recorders Office: Excise Tax Affidavits Report to see more sales records details Sale Date 3/7/1986 !Sale Price l$o Seller Name MARTIN KENNETH A $ER Buyer Name MARTIN KENNETH A Assessor Parcel Records: District Name KING COUNTY Property Name Property RESIDENTIAL Type Present Single Family Plat Name Use (Res Use/Zone) Plat Block Water WATER System DISTRICT Plat Lot Sewer PRIVATE System Lot Area 160,736 SqFt (3.69 acres) Access PUBLIC Section/Township/Range SE 10 23 5 Street PAVED Surface Page I of3 soc Assessor Legal Description Records: Account Number 102305938304 I Record Number lo1 Legal Description 102305 383 S 1/2 OF NE 1/4 OF SE 1/4 OF SE 1/4 LESS N 16 FT LESS E 150 FT LY S OF N 14 FT THOF LESS CO RD Assessor Residential Building Records: Address 12439 148TH AV SE 98059 Building Grade Average Building number 1 Condition Good Bedrooms 3 Year Built 1969 Baths 2 Year Renovated 0 1/2 Baths 1 Total Living SqFt 2360 3/4 Baths 0 1st Floor SqFt 2360 Stories 1 Half Floor Sq Ft 0 Single Story Fireplace 1 2nd Floor SqFt 0 Multi Story Fireplace 0 Upper Floor Sq Ft 0 Free Standing 0 Fireplace Total Basement SqFt 0 Basement Garage SqFt 0 Total Finished Basement 0 Attached Garage SqFt 440 SqFt Finished Basement Grade NONE OR Open Porch SqFt 0 UNKNOWN Daylight Basement Enclosed Porch SqFt 0 Heat System Elec BB Deck SqFt 0 Heat Source Electricity Percent Brick Stone 0 This report was generated: 7/30/2005 10:13:59 AM Related on-line reports: IKingCounty GIS:~p~;;j;;rty i~for~-<rtionFAO-__ __ -·-······ .... ·-=] [isiml Count\/ !'._:lsessor: Submit a reguest to correct this infor_r:i:iation __ ] i DOES Permit Am~Ucations Report --_ .. · · · · .• · •..•. · ., ••• ,, ••.•.. _ -.· ---:=·~1 ! King6ounty: [)istricts a~d· De~elo~~ent (;onditi()l1!1 ~eport · · ..... I l!SLo.9 County Assessor_eReal Prop_M!y Report-(PDF format requires Acrobat) ~-I IBlmi Cou~ty)reasury Operations: P!op~rty I_~x Information__ _ ____ ] r~~c.o'.d~r~ otiic:e--E~?-ise-Ta~ ~~1ci~~1is R~2ort. -----. · -----·--····· . . .. · ·· .. ············•· ...... _1 1 I Rec()r9ers_ Office: _sc.a.n ned ima11ei; Clf plats .. surv:Y~:_and oth:r rn~p~()C~rTlents E~ter a 10 digit Parcel Number: ' ·--·-··---··-·--······----·-· _ or Enter an address: [~~~f4R[] Page2of3 soc Page 3 of3 King County I GIS Center I News I Services I Comments I Search By visiting this and other King County web pages, you expressly agree to be bound by terms and conditions of the site. The details. soc Page I of I @ King County 11111mlm!11111Em!!1111 Ci44'1i34W Comments Mi¥ii3,M No P-Suffix Conditions Found The Parcel Number you entered "1023059383" does not have any Development Conditions. To start over click on the New Query link below. Updated: December 29, 1998 King County I DOES Page I DDES/GIS Pa~ I New Query I News I Services I Comments I Search Links to external sites do not constitute endorsements by King County. By visiting this and other King County web pages, you expressly agree to be bound by terms and conditions of the site. The p_g_tails. 0 ol-coO NJ: ~Cl.. Cl. N LOo oo <(N + A05PM260 ARTERIALS S-T-R . . '• ' QSUNES J:\/SEQJNES 1\/TWPUNES 1\/su.. WW. Bodlee Parcels 1\/0ty~ OlleS 0 1000 2000 3000 4000 Faal , ... 333318111 ® King County ---··--• • ~ ~iTho--on'* ____ IIV ----...::-:;;; ___ .J_J::V.~J:'·~···.:::'" ... .. --. .. -... _ .. ~ ... u. ---=!',......,.....__.,...,.. .. ,,,._., --""vOOu'Oy-ldt>o _,.,.., ---~-... ---._-...1u .... -....... -or: .... ~.-.a-.. _., __ ., .. _ ::-...:.-:.:.t:=:::..~ Oouriy. Plol-Jul 30, 2005; \lddll001III01'Git\8Y_~ 1 0 ~ ow J co (!) ~ N......., ~ ~o ! a.. 0:: § LO Cl o>- <( ::r: 0 ~----~----------~·~-------------~ 0 (0 N :E 0::: a. <( LO Cl o_ <( ..J ------+--~--~--··------- --------1 .. . ·-·--• . . . . _ .. ,:.· --· -I r: .-.~-.-.· • ·-·· ~ A05PM260 2005 SWDM S-T-R •\ 'a5UNES ~SEO.INES N lWPIJNES N ~ -Water Bodies Landsllde Hatard Drainage HI/fa$ D landolde Hmrd Drainage D Ulndllllde Hazard Mita LJ f>aroelg Flow Coma (2004) Basic -CallllrvaUon -Flood Protwng Naty- Oties o '400 Feet 1-.soofaee ®King County ----°"'*-•-~b\' 1QrvCour1yull ...... ~.,--......... dw-qo......,. noia. KirV Cour1y,,_ ro ••....-..ilol•otWlffW'GN.. ..... « '""'*1. a Iott» ooancy, ..,.......,_ __ orriglalolho-ol --~Counly-tabo_tor.,, --·---·--·"'--..._111c:ldr41,l:IUlta-lO, .... _., .... prola~lromh•or-dlM--on .... -. ,,.,,_.,.,.._.,_ onlhll-iljlNIOllUcl-lJl'-~d °"")'. Plol dlle: .llA 30, 2005; lldde9001\x01'QINY_~ 0 c.o N ::E a.a ~<( <( (.) A05PM260 ZONING NTrlilta fl SclloclslSchool Facllltiel S-T-R ,, 'OSUNES ~SEQ.JI-ES 1'/TWPUNES N S11.a wat,,rl!odlel Road Ril1ltHf-Way .=i Pa,a,ls CJ Pal1cs -01les Zorq __ ,t,.10-~.one0Uper10aaes -"'36 • AcJl(:IAnl, one OU per 35 8Cl9II -F-Fcrall -M ·Mlnlnll RA-2.5 -Rl.ral Ania. one OU per 5 acres AA6 -Rini lwm, one OU per 5 acrea -RA-10 • Rini AIU, one OU per 10- UR -Utan RaaNe, one OU per 5 aa-. R-1--.tilll, one OU per acre R-t-_._, 4 OU per acre R-6· ,__.., 8 OU per acre R-6 -Rlleidentlal. 8 OU per acre R-12---.120Uperacre R-18 • RMidenllal , 18 OU per acre -R-24--.ial, 24 OU per acre -R-48 -Relicllnllal, 411 DU per acre WI loB • Nelgtlbort,ood ~ • ca -Camu,ity~ -RB. Reglonal Buelr.- -O -Olllce I -lncblrial N0ty~ 0 !iOO 1000 1 .. 1333feet ®King County 1500 Fell ~ I Ef ________ _ ~ : '~~¥~~,;; A t ~· --1<;,gc..ny-,..,.bo-tor11¥ I ::=::::, .. ~-::.:=::-...... ...--arv ............ -., .. - ---~I-~::=--...:.-:.: .. r:.;~:...~:-· Oour<y. Plcl dlle: JIA 30, 2005; llddel001\x01'(jlNY_~ Parcel Number: 1023059383 Taxpayer: MARTIN KENNETH A Annexation: NIA Jurisdiction: Unincorporated King County Situs Address: 12439148TH AVE SE Postal City: Renton, 98059 Plat Name: ; Rec: nil Lot: NIA; Block: NIA Kroll Page: 805 E Thomas Bros. Page: 656 114-S-T-R: SE-10-23-5 Acres: 3.69 (160736 SqFt.) Current Zoning: R-4 Potential Zoning: Comp. Plan Land Use: um Assessor's Open Space: NIA Commercial Use: NIA Number of Units: NIA Mobile Home: N Appraised Land Value: 140000 (2004), 415000 (2005) Appraised Improvements Value: 217000 (2004), 165000 (2005) Community Plan Area: Newcastle Unincorporated Area Council: Four Creeks Unincorporated Area Councii School District: Issaquah School District 411 Fire District: 0025 Roads MPS Zone: 442 ($2918.00) Roads TCM Zone: 754 Waterfront: Water Service: Water Service Planning Area: King County Water District 90 Sewer Service: Airport Noise Remedy Program: NIA Bald Eagle Flag: NIA Council District (1996-2001): 12 David Irons Jr. (R) Council District (2002): 12 David Irons Drainage Basin: Lower Cedar River, WRIA 8 Police: King County, Pct: 3, Dist: F2 Service/Finance Strategy Area: Service Planning Snowload Zone: Standard Agricultural Production District: N Forest Production District: N Rural Forest Focus Area: N TOR Type: NIA TOR Status: NIA TOR Permit Number: NIA Building Inspection Area: N-7 Clearing Inspection Area: Bruce Engell Code Enforcement Inspection Area: Bill Turner ESA Inspection Area: Greg Sutton Grading Inspection Area: Bruce Engel! Land Use Inspection Area: Tim Cheatum Sens. Areas Notice(s) on Title: NONE Aquatic Areas Buffer: N Basin Condition: Low Flow Control Area: Conservation Flow Water Quality: Basic Critical Aquifer Recharge Area: None Area of Potential Wetland Influence: Y ~---------------------------- soc ® King County a:Imm.!ll llm!!lll C14.\ii34W Comments W1¥ik4,M By law this information may not be used for commercial purposes. _ -·--·······-···-·-Assessor_ Real .Property .. Records: ............. _ ... ____ ,, ......... . Taxpayer MARTIN KENNETH A 2004 Parcel Number 1023059383 M-,•--•mM-••-•m•"•~••••n••-•"•-•-mw••·-•--•--••••••·--=·-~--···--·-~··-·• Account Number 102305938304 Tax Year Tax Status TAXABLE Appraised Land Value Levy Code Taxable Value Reason $140,000 Taxable Land Value 6867 NONE OR UNKNOWN $140,000 Appraised Improvement $217,000 Taxable Improvement Value $217,000 Value Parcel Number Taxpayer MARTIN KENNETH A ------------ Account Number ····--..---·---·~-----~-,-. _ Levy Code_ Tax Year 2005 -------·--·-------. ----·-- Tax Status TAXABLE Taxable Value Reason Appraised Land Value $415,000 Taxable Land Value 1023059383 102305938304 6867 ',.,.,. ___ , _ _,_,_._"·- NONE OR UNKNOWN $415,000 Appraised Improvement $165,000 Taxable Improvement Value $165,000 Value Assessor Property Sales Records: Tip: Use the Recorders Office: Excise Tax Affidavits Report to see more sales records details Sale Date 3/7/1986 !Sale Price l$0 Seller Name MARTIN KENNETH A $ER Buyer Name MARTIN KENNETH A Assessor Parcel Records: District Name KING COUNTY Property Name Property RESIDENTIAL Type Present Single Family Plat Name Use (Res Use/Zone) Plat Block Water WATER System DISTRICT Plat Lot Sewer PRIVATE System Lot Area 160,736 SqFt (3.69 acres) Access PUBLIC Section/Township/Range SE 10 23 5 Street PAVED Surface Page I of3 ------------------------------------------------------------- SOC Page 2 of 3 Assessor Legal Description Records: Account Number 102305938304 Record 01 Number Legal Description 102305 383 S 112 OF NE 114 OF SE 114 OF SE 114 LESS N 16 FT LESS E 150 FT LY S OF N 14 FT THOF LESS CO RD Assessor Residential Building Records: Address 12439 148TH AV SE 98059 Building Grade Average Building number 1 Condition Good Bedrooms 3 Year Built 1969 Baths 2 Year Renovated 0 1/2 Baths 1 Total Living SqFt 2360 3/4 Baths 0 1st Floor Sq Ft 2360 Stories 1 Half Floor SqFt 0 Single Story Fireplace 1 2nd Floor SqFt 0 Multi Story Fireplace 0 Upper Floor Sq Ft 0 Free Standing 0 Fireplace Total Basement SqFt 0 Basement Garage SqFt 0 Total Finished Basement 0 Attached Garage SqFt 440 SqFt Finished Basement Grade NONE OR Open Porch SqFt 0 UNKNOWN Daylight Basement Enclosed Porch SqFt 0 Heat System Elec BB Deck SqFt 0 Heat Source Electricity Percent Brick Stone 0 This report was generated: 7/30/2005 10:13:59 AM Related on-line reoorts: [~i119 C::<>~nty ~l~:_f>rop~ i11f<>r1T1atio11 ~~Q ........ ...... ............... .... ...... .... ...... . .... ..... ........ . .... ] --. -·--·····--·--·-··-···--·····-··-···-·-············-· J i King County Assessor: Submit a reguest to correct this information !00Es~p;;;;1t=;.:;~,i~0.rt1~~~c,-~~ort---·· ······· ·· = --· ·=·= · ·· · · --· .... --·-_ · =~=0"-I I King County: oist~i~is and. D~~~io~;;.,~;;-ic"ondi.tions Report . .. ....... ........ ..... I ... . ...... . .... ... ... .. . ...... ....... . .. .. . •· . ... . .. . ... .... . ... . . . . . ....... ......... ............. ............ ... .. .......... . . ... ... .. .. .... . .......... ·····-.. ... . .... .I l1<ingCou~~Asses~orLe~~ai~~~~~-~eg~d i~e~_i<>.~~-~tre~~:ire~Acrob:~1)··· ... ·······.·1 ~CountyTreasury-Operations:ProQMty Tax Information ________ · __ _J I····-····-···-·········· -···-··-···-·-··-· ...................... -···-......... ······· ...... ····· ..... -....................... ····· .. -... .. ... ····1 Recorders Office: Ex(ilile Tax Affidavits Report ... ·.:.·.·.:·.: ....... : ....... :-.:::: .. ' .... :: ... :· ... ,,,., ""' ... --. ,,"'",., .··· ...... · .. · ..... ""'". '" '"·'''""""'""'"'"""'" ................................. '. '' ... ,,,--,..,, ...... ---. ·--,_, ___ ;:_,· ____ ,· __ , _______ ,, ·_ . ..: . -·~ I Recorders Office: Scanned images of plats. survey.§. and other map documents I """""··-·--·-·-----· .. -· ----------. --------• ··----···---·---.. ·---·-·---·····-........................................................... , ... -........... , ........ ,., .... , '" .. -··· ........ ""' ""'""' """ .......... , Enter a 10 digit Parcel Number: or Enter an address: L--------------···----· ··-.... soc Page 3 of3 King County J GIS Center J News J Services J Comments J Search By visiting this and other ~ing County web pages, you expressly agree to be bound by terms and conditions of the site. The details. soc Page I of I @ King County IIIIl!m!II IE:r!!III Ci§i'lld49 Comments Ai¥ii3,M No P-Suffix Conditions Found The Parcel Number you entered "1023059383" does not have any Development Conditions. To starl over click on the New Query link below. Updated: December 29, 1998 King County I DOES Page I DDES/GIS Page I New Que!)' I News I Services I Comments I Search Links to external sites do not constitute endorsements by King County. By visiting this and other King County web pages, you expressly agree to be bound by terms and conditions of the site. The details. I ., I 4. • NOTES -AOSPM260 8/8/05 • Zoning: Per GIS, the site is zoned R-4. Base Density: According to the applicant, the site is 161,784 sq. ft. (3.7140 ac.). This would allow 14.856 dwelling units, or 15 dwelling units. The applicant is proposing 13 lots. Advise the applicant that minimum density requirements will apply. P suffix/Special Development Conditions: There arc no P Suffix conditions for the site. The significant tree preservation requirements of KCC 16.82.156, and the seasonal clearing restrictions of KCC 16.82.095 apply to the site. Wildlife: No bald eagle nests, wildlife networks, or wildlife habitat conservation areas arc located on the site or in the vicinity. Geotech: Per GIS, there arc no landslide, erosion, seismic, or coal mine hazard areas on the site or adjacent to the site. Wetlands/Streams: Per GIS, there are no wetlands, streams, or other water bodies on the site. The applicant's "Conceptual Site Plan" docs identify an "Existing wetland to be filled" on the western edge of the proposed plat. Can this wetland be filled, as is proposed? Will the applicant need to submit a wetland study? / A wetland study will be required. > The wetland cannot be eliminated (KCC 21A.24.335), but it can be moved, if desired by the applicant, if: • • • It is less than 2,500 sq. ft . It is not part of wetland complex . It is a category 4 wetland . The study must also determine whether the topographic feature along the southern boundary is a stream. Schools: Per GIS, the site is located in Issaquah School District #411. The current fee for this district is $4,617.00/single-family lot. Concurrency: Remind the applicant they will need to submit a Concurrency Certificate: The current map places the site in a yellow zone (Zone 754). -i \ ....... .. • • Intersection Standards: Are there any known safety issues at nearby intersections? Will we require the applicant to contribute to the SR 900/148'h Ave. improvements? > The applicant will be required to contribute to the SR 900/148'h improvements. There are no other known safety issues at intersections. Road Standards: Are there any known sight distance or intersection spacing issues? > None known about. Neighborhood Circulation: Based on the lot layout shown on the applicant's conceptual plan for the surrounding neighborhood, it looks like there is no need for a road stub to adjacent properties. > No road stubs needed to the south or east. > The road proposed along the north boundary conflicts with the Zoning Code (KCC 21A.14.020), and thus we will not support it. It creates double-fronted lots. (Discussed w / Kim; this approach reflects her position.) Drainage: The applicant will need to provide an off-site drainage easement, if one wasn't already provided with Shamrock. The applicant may also need to apply for a CAO Alterations Exception if they need to put a storm pipe through a · wetland buffer. Bald Eagle Neita ~rails ~ONIW'ip Llnes ••• Wlkllfe Nelv.ork ~T-R ,, 'QSUNES ~SEQ.JI-ES I e N lWPUNES N SlrNIII IZI SAO Landsllde 1111 SAO Coll Mine CS SAO Selerric: ~ SAO Eroelorl lk 7,'v,u3 ',, '25j1 SAO Welland (111118) --CI ZOl*1Q )C WIidiife liabltlt Con&eMl1lon Aleaa (2004) c:J F'att* !Palalls ~f:.lV8 Habllal WOFW2 OR TREES1 WOFW2 OR TREES3 TREES2 CJ Pa1<a -Aquallc-Buff• (2004) N aty 8ouncBlel CNIN 0 400 800 1-. 94519e1 ® King County 1200 Feet t:J~Tho---onHomop _ _,_.,..111' l<lng Oolny--•Yatolyal ___ .,.,...,. .. dwoqo-nottoo. 1<1ng0ouny..-no 1ap-.i&atioN01 ~exp,w«~ • loU. -.ncy,.........,_ __ orrfgl*ll>tho-al :::= .... ~~;i.:-..=.:.~ CNl'l"llgllll lnl::tJclr'O, but nal llmled ID, IOet,....,...ot Joel ..-~,....,tho-or_al .. -lon ::::*..:.·:.: .. t:.::::...~ Coul1y. Plot dllll: Aug 2, 2005; \\ddae001"'01'9NV_~lllase2.apr - • Planning/ Zoning: King County DDES Pre-Application Meeting Questions Martin Property July 6, 2005 • Overview of zoning and property setback requirements • Overview of park space requirements • Any P-suffix conditions to be aware of? • Traffic Concurrency & TIA A / /J • Will a traffic impact analysis be required for the property proposal? -/V V ROW/ Street Requirements: • Confirm applicable road standards. • Discuss the required x-sections for the interior plat roads • Discuss proposal for site access and future area to be dedicated as ROW w/ the J Shamrock property plat. ~ ~ A?-/ ]5111? ~ Drainage Analysis: -.:.. • What storm drainage standards will apply? • Additional drainage requirements to note or address? Misc Site Development: • Any restrictive clearing & grading requirements to be aware of? K.C. D.D.E.S. l ,, -.. ® • King County Department of Development and Environmental Services Land Use Services Division 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 206-296-6600 TIY 206-296-7217 For alternate formats, call 206-296-6600. Pre'-application l}lo. . " ' .' .:: ··oo··.. r2 /'N rc;;n nn . r2 [ID·.' . D· .. ·_•t·"'·R·_ •. ·_·. __ :::-d:~ o_.,l5 .. 10·l5.:LJ<IY IS ••.·o· a e· ece1ve • · .... , .· .. ·. : . '.·?st~n\pj ,. ·. · .. · JUL J 2 2005 ·. K.C. D.D.E.S. P ease print: Applicant Name: camwest Real Estate Development Date: 07 /11/05 Address: 9720 NE 120th Place, Suite 100 Phone: ( 425) 825-1955 Kirkland, WA 98034 Fax: ( 425) 825-1565 Project Description: Subdivision proposal to divide 3.71 acres into 13 lots for residential development. Permit(s) being requested: Subdivision approval Project Address/Location: Parcel No(s): 12439 148th Ave SE 1023059383 Renton, \"IA 98059 Please indicate if pre-application is: D Land Use Feasibility !ill Mandatory D Consolidated Check the box(es) regarding issues you wish to discuss: 6a Land Use Permit Issues: Subdivision /CUP/ Variances / Reasonable Use/ PAUE 6a Site Issues: Zoning I Setbacks /Density/ Subdivision Design / Landscaping 6a Site Issues: Traffic/ Road Access/ Road Improvement I Road Variances/ Parking Layout B Site Issues: Drainage I Site Development I SWDM Variances & Adjustments D Shoreline Issues: Substantial Development Permit/ Permitted Uses/ Shoreline Setbacks ~ SEPA Issues: SEPA Checklist/ Off-Site Improvements/ Mitigation ~ Wetland/Stream Issues: Buffers/ Building Setbacks/ Flood Plains/ Mitigation D Geotechnical Issues: Steep Slope/ Landslide/ Seismic/ Coal Mine/ Erosion ~ Clearing/Grading Issues: Site Development/ Clearing Restrictions/ Site Restoration D Building Issues: Building/ Mechanical: HVAC/Energy/ Barrier-Free Standards D Fire Issues: UFC / Fireflow / Access /Sprinklers/ Alarms/ Hazardous Materials D Health Issues: Sewer I Septic/ Water I Groundwater/Noise Impacts ~ Other (Specify): See attached list of questions Check out the DDES Web site at www.metrokc.gov/ddes Land Use Pre-Applic"ation Meetings Information & Request Form lc-infreq-preap.pdf 04/27/04 Page 3 of 4 • • Please Indicate the numbers and types of representatives that will be at the pre-application meeting from your design team: Will Attend Im D @ &I Will Not Attend 0Applicant g]Architect 0Civil Engineer 0Developer Will Attend D D D D Total Number Attending: 4 Will Not Will Attend Attend !illGeotechnical Consultant D ~Landscape Architect D @Legal Consultant D &)Property Owner ------------ Will Not Attend liQl Structural Engineer ~ Wetlands Consultant D Others: I certify that I am the applicant for this pre-application meeting request and I understand that ODES will assess hourly review fees for each DOES staff member Involved in pre-application research, meetings and post-meeting follow-up work, and that I assume financial responsibility for all fees associated with this request. Note: An advance deposit of $392.44 is required to schedule a pre-application meeting. All checks must be payable to King County Office of Finance. If you have any questions about your pre-application meeting, please contact DOES at 206-296-6600. Check out the DDES Web site at www.metrokc.gov/ddes Land Use Pre-Application Meetings Information & Request Form lc-infreq-preap.pdf 04/27/04 Page 4 of 4 Dev. Cond. Query Result -DOES, King County Washington •• • Page I of I (@ King County IIIE:mmlllll lEm'!!llll &i4i'ii34W Comments Wi¥h3,M No P-Suffix Conditions Found The Parcel Number you entered "1023059383" does not have any Development Conditions. To starl over click on the New Query link below. Updated: December 29, 1998 King County I DOES Pag~ I DDES/GIS Pag~ I New Query I News I Services I Comments I Search Links to external sites do not constitute endorsements by King County. By visiting this and other King County web pages, you expressly agree to be bound by terms and conditions of the site. J:he_deta_i!s. http://appsOl.metrokc.gov/www6/ddes/new _ direct.cfm 08/02/2005 Parcel Number: 1023059383 Taxpayer: MARTIN KENNETH A Annexation: N/A Jurisdiction: Unincorporated King County Situs Address: 12439 148TH AVE SE Postal City: Renton, 98059 Plat Name: : Rec: nil Lot: NIA: Block: NIA Kroll Page: 805 E Thomas Bros. Page: 656 114-S-T-R: SE-10-23-5 Acres: 3.69 (160736 SqFt.) Current Zoning: R-4 Potential Zoning: Comp. Plan Land Use: um Assessor's Open Space: NIA Commercial Use: N/A Number of Units: NIA Mobile Home: N • Appraised Land Value: 140000 (2004 ), 415000 (2005) Appraised Improvements Value: 217000 (2004), 165000 (2005) Community Plan Area: Newcastle Unincorporated Area Council: Four Creeks Unincorporated Area Council School District: Issaquah School District 411 Fire District: 0025 Roads MPS Zone: 442 ($2918.00) Roads TCM Zone: 754 Wateriront: Water Service: Water Service Planning Area: King County Water District 90 Sewer Service: Airport Noise Remedy Program: NIA Bald Eagle Flag: NIA Council District (1996-2001 ): 12 David Irons Jr. (R) Council District (2002): 12 David Irons Drainage Basin: Lower Cedar River, WRIA 8 Police: King County, Pct: 3, Dist: F2 Service/Finance Strategy Area: Service Planning Snowload Zone: Standard Agricultural Production District: N Forest Production District: N Rural Forest Focus Area: N TDR Type: NIA TDR Status: NIA TDR Permit Number: NIA Building Inspection Area: N-7 Clearing Inspection Area: Bruce Engell Code Enforcement Inspection Area: Bill Turner ESA Inspection Area: Greg Sutton Grading Inspection Area: Bruce Engel I Land Use Inspection Area: Tim Cheatum Sens. Areas Notice(s) on Title: NONE Aquatic Areas Buffer: N Basin Condition: Low Flow Control Area: Low Water Quality: Basic Critical Aquifer Recharge Area: N Area of Potential Wetland Influence: Y • A05PM260 N w .. ca.ne (WLR) Bald Eagle Nests N T""'*"'i>IJnas • Wlcll(e-.. S-T-R ,, 'QSUNES ~SEQ.JNES I e 'JlilTWPuNES N S1r9811 121 SAO l.and&ld8 BB SAO CCIII Mine CSI SAO Seilfflc i::;J SAO Eroelon 1r- 7,'v,3u , ,, cg SAO Weiand (111Q8) W..Bodlee "' Wllcllfe Habitat ecr-tlon Ma (2004) O l'lralll -Aqlrdc Arms Bullw (2004) ~ Parcels~~ HabNal WOFW2 OR TREES1 WOFW2 OR TREES3 TREES2 N Clly 80l.lldarles Oleo 0 500 1000 1500 Feet , .. 13811 laet ® Kint County ___ ....... ___ -..-i,,, KirQ Oolny-from o vwlolycf-nl 11 _,.. to ~--l<lngOolny-no --.. --.. -..... .... Iha -·--"'-"'"'" ... « =---~~:-.:=:.onv ---=.:bulnalllmlodto.lool_ ...... ~--.1rom ........ _ .. "'"_ -....... _.,.,,,_ ...... _ ... _ onNo_ll,...,__..,,_~"' Oucy. Plot dale: Jut , •• 2006: llddlll001\x01'Gll\8Y_~.apr e "J / _; • ® King County Department of Development and Environmental Services Land Use Services Division • 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 206-296-6600 TIY 206-296-7217 For alternate formats, call 206-296-6600. to ;be•~oni ple'.ter,!l~l I?,,[) ~~~~itn: Presapp\jcation No! ·,• · K.C. D,D.E.S. 80 Please print: Applicant Name: camWest Real Estate Development Date: 07 /11/05 Address: 9720 NE 120th Place, Suite 100 Phone:(425) 825-1955 Kirkland, WA 98034 Fax: (425) 825-1565 Project Description: Subdivision proposal to divide 3.71 acres into 13 lots for residential develooment. Permit(s) being requested: Subdivision approval Project Address/Location: Parcel No(s): 12439 148th Ave SE 1023059383 Renton, \'IA 98059 Please indicate if pre-application is: D Land Use Feasibility gjg Mandatory D Consolidated Check the box(es) regarding issues you wish to discuss: !xii Land Use Permit Issues: Subdivision / CUP /Variances/ Reasonable Use/ PAUE !xii Site Issues: Zoning I Setbacks I Density/ Subdivision Design I Landscaping !xii Site Issues: Traffic/ Road Access / Road Improvement/ Road Variances/ Parking Layout !xii Site Issues: Drainage I Site Development/ SWDM Variances & Adjustments D Shoreline Issues: Substantial Development Permit/ Permitted Uses/ Shoreline Setbacks ~ SEPA Issues: SEPA Checklist/ Off-Site Improvements/ Mitigation ~ Wetland/Stream Issues: Buffers I Building Setbacks/ Flood Plains/ Mitigation D Geotechnical Issues: Steep Slope/ Landslide/ Seismic/ Coal Mine/ Erosion ~ Clearing/Grading Issues: Site Development/ Clearing Restrictions/ Site Restoration D Building Issues: Building/ Mechanical: HVAC/Energy/ Barrier-Free Standards D Fire Issues: UFC / Fireflow /Access/ Sprinklers/ Alarms/ Hazardous Materials D Health Issues: Sewer/ Septic/ Water I Groundwater/Noise Impacts ~ Other (Specify): See attached list of questions Check out the ODES Web site at www.metrokc.gov/ddes Land Use Pre-Application Meetings Information & Request Form lc-infreq-preap.pdf 04/27/04 Page 3 of 4 •' ' • • • Please indicate the numbers and types of representatives that will be at the pre-application meeting from your design team: \MIi Attend &] D !xi! &] \MIi Not Attend 0Applicant @Architect 0Civil Engineer 0Developer \MIi Attend D D D D Total Number Attending: 4 \MIi Nol \MIi Attend Attend &]Geotechnical Consultant 0 @Landscape Architect 0 @Legal Consultant 0 !mProperty Owner ------------ Will Not Attend ligl Structural Engineer ~ Wetlands Consultant 0 Others: I certify that I am the applicant for this pre-application meeting request and I understand that DDES will assess hourly review fees for each DDES staff member involved In pre-application research, meetings and post-meeting follow-up work, and that I assume financial responsibility for all fees associated with this request. Note: An advance deposit of $392.44 is required to schedule a pre-application meeting. All checks must be payable to King County Office of Finance. If you have any questions about your pre-application meeting, please contact DDES at 206-296-6600, Check out the DDES Web site at www.metrokc.gov/ddes Land Use Pre-Application Meetings Information & Request Form lc-infreq-preap.pdf 04/27/04 Page 4 of 4 ' • Date: July 12, 2005 To: Permit Center Dept. of Development & Environmental Services 900 Oakesdale Ave SW Renton, WA 98055-1219 Job No: 04-257 Project: Martin Property Enclosed are: 18] Prints D Copies D Reproducibles D Reports 18] Documents D Specifications D Other These have been sent: D For Your Use 18] For Your Review I Approval 0 For Your Signature I Return D At Your Request D For Your Records D For Your Information D Other Quanlily Dale Description • 5 5 5 7/12/05 4/26/05 7/6/05 Preapplication Meeting -Land Use Request Form Martin Property Site Plan Pre-Application Meeting Questions Remarks: Please contact Jeff Morgan at (425) 821-8448 with any questions. 12112 JI 5th Avenue NE Kirkland, WA 98034-6923 425.821.8448 425.821.3481 fax 800.488.0756 toll free www.tnadassoc.com K.C. D.D.E.S. ,~''')~~ Copies To: Project Administrator land Development Consultants • • King County DDES Pre-Application Meeting Questions Martin Property July 6, 2005 Planning/ Zoning: • Overview of zoning and property setback requirements • Overview of park space requirements • Any P-suffix conditions to be aware of? Traffic Concurrency & TIA • Will a traffic impact analysis be required for the property proposal? ROW I Street Requirements: • Confirm applicable road standards. • Discuss the required x-sections for the interior plat roads • Discuss proposal for site access and future area to be dedicated as ROW w/ the Shamrock property plat. Drainage Analysis: • What storm drainage standards will apply? • Additional drainage requirements to note or address? Misc Site Development: • Any restrictive clearing & grading requirements to be aware of? (m@©@OW@'[)\ JUL I 2 2005 1_0 K.C. D.D.E.S. , .. Engell, Bruce From: Sent: To: Subject: Claire: • Engell, Bruce Monday, March 10, 2008 9:57 AM Jonson, Claire; Dye, Pete L07SR015 Revised Tree Plan • If that is the correct tracking number you will need to add my revision review station (SOS) and attach the standard GA review fee. There should be '2' GA review charges for Tree's; 'I' for initial review and the 2nd for the revision under the L07SRO 15 number. • A.ppRouen 1 • • . 9. 8 ),t iT.sl-6.M a~uo~9q.A a3<! iu:.li! k1-1Jq' 33ff·r· ., -· .' • • SIGNIFICANT TREE BOND QUANTITY WORKSHEET {Planting & Existing Trees) (Complete and return electronically) Date: February 19, 2008 Project Name: Martin Property ODES Project Number: LOSPOOl9 * Price Each I. Soil Preparation Topsoil Mulch (2 inch depth X 36" round) Fertilizer $6.00 Removal of invasive species NIA Irrigation (hand water per owner) 2. Plant Materials Deciduous Trees (Nursery Stock) Caliper: 3" cal $150.00 Evergreen Trees (Nursery Stock) Caliper: 3" cal /8' ht . $120.00 Other: 3. Labor & Equipment Costs Labor: (planting) $120.00 •Equipment: $40.00 4. Tree Protection Measures High Visibility Fencing Tree Stakes $2.65 5. Monitoring Costs 3 years monitoring with reports $500.00 Existing Significant Tree Values $250.00 Other: SUBTOTAL 30% CONTINGENCY & MOBILIZATION TOTAL PERFORMANCE BOND AMOUNT First $2500.00 shall be cash Ouantitv 0 0 21 0 $21 0 21 .. 21 0 42 3 vears 2 Quantity Calculations completed by: Mei-shiou Lin at Triad Associates Approved by Site Development Specialist: Total Price $126.00 $3,150.00 $2,520.00 $840.00 $111.30 $1,500.00 $500.00 $8,747.30 $2,624.19 $11,371.49 Comments Included in landc. bond qty. Included in landc. bond qty. Included in landc. bond qty. Exclude replacement trees located within Rec. Tract Included in Rec. Tract Bond Ouantitv Included in Erosion sediment control bond nh,, 2 significant trees to remain I " ,._ ·' • • • SIGNIFICANT TREE RETENTION PLAN BOND INFORMATION (Planting & Existing Trees) This Significant Tree Retention performance and maintenance bond (for replanting and existing significant trees) ·is to ensure that significant tree replacements are planted and survive. It is also to ensure that the significant trees to be retained are saved in a healthy state and replaced as approved by the approved significant tree retention plan or ODES approved (documented) revisions to that plan. The planting portion of the bond is for a period of three (3) years monitoring from the date of tree planting installation acceptance in writing by ODES or until the approved Significant Tree Retention Plan has been successfully complied with. The existing bond amount can be released upon successful retention of the significant trees to be retained after the construction has been completed. At the final inspection for Significant Tree Retention by the ODES Land Use Inspection Unit {LUIS), the general site bond may be released if the site is in compliance with the DOES approved Engineering Site and Construction Plan and the Significant Tree Retention Plan. This Significant Tree Retention (Planting) portion of the performance and maintenance bond remains in affect for three (3) years monitoring or until DOES LUIS has completed final construction inspection and supports bond release as the Significant Tree Retention Plan is in compliance. If the Tree Retention Plan is not in compliance at the end of the street tree monitoring period LUIS can forward monitoring responsibility to DOES Site Development Services. DOES Site Development Services will assign an inspection/monitoring tracking number and bill the permittee the hourly rate in effect at that time as established by the King County Council Fee Ordinance. The permittee/developer is responsible to post the Significant Tree Retention and Planting Bond with DOES (Financial Guarantee Section) prior to the LUIS pre-construction meeting and prior to starting any site work/disturbance. A private agreement may be necessary between the plat permittee/developer, the future builder and the future landowner to ensure continued access for DOES inspections to the lots for the three (3) years monitoring or until the approved Significant Tree Plan has been complied with. This may require legal documentation as requested by DOES and is the sole responsibility of the plat permittee/developer to secure this agreement. A copy of this agreement shall be submitted to ODES Site Development Services and the LUIS Inspector. The future builder/landowner on the referenced lots that include significant trees ( existing or planted) shall not remove or damage these trees in any way without prior approval ( a permit may be required) from ODES -Site Development Services. It shall be the responsibility of the bond holder to request bond release from DOES. !fat the end of the three (3) year monitoring period ( or as extended) the Significant Tree Retention Plan has not been complied with the bond may be forfeit to King County. It is the responsibility of the bond holder to perform monitoring and maintenance of the plantings as stated on the DOES Significant Tree Retention Plan or as legally assigned to others as stated above. Status reports on planting success shall be submitted to ODES Site Development Services a minimum of once per year. Submittal of this bond by the permittee/designee and acceptance by DOES constitutes acceptance of the above stated conditions. ... • • Pagel of 3 Jonson, Claire ---------------------------·--·-----------·--··-----------·---··-·- From: Scharer, Karen Sent: Monday, February 11, 2008 10:04 AM To: Gerry Buck Cc: Jonson, Claire; Dye, Pete; Mei-shiou Lin Subject: RE: Martin Property L07SR015 revision Gerry - You may want to read the linked document regarding the City of Renton's ability to link density as a condition of sewer service: httR://www.courts.wa.gov/oRinionslRdf/59002-2.RUb.doc.Rdf The purpose for the administrative revision is to adequately document our review. In this case, since you are required to submit a new recreation plan, the administrative revision can be included in the new recreation plan submittal. To clarify, we previously had closed out the recreation plan file at ODES, now we can not reopen, and therefore a new recreational plan file must be established. Again, you only need to submit one application. My main concern with the recreation tract is that the location of a recreation tract on the south was not disclosed at the time of preliminary plat approval. Now it will border on the south property line and the abutting property owners were given information that single family homes would be constructed directly north. The fact that this recreation tract will only serve 13 lots leads one to conclude that the tract will not have a substantial impact to abutting neighbors with appropriate design. By this I would want to see that the location of play equipment is setback from property lines 30 feet (setback required for school and daycare play equipment) and the rear line is landscaped with trees. Your point regarding complying with the minimal frontage is well taken, no revision to widen the frontage will be required. Please file an application for rec. plan approval for your current proposal. Karen J. Scharer, Program/Project Manager II Current Planning Section, Land Use Services Division Department Of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, WA 98057-5212 karen.scharer@KingCounty.gov Phone 206-296-7114 (FAX 206-296-7051) From: Gerry Buck [mailto:gbuck@triadassociates.net] Sent: Friday, February 08, 2008 3:03 PM To: Scharer, Karen Cc: Jonson, Claire; Dye, Pete; Mei-shiou Lin Subject: Martin Property L07SR015 revision 02/13/2008 ', ~ King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, WA 98057-5212 206-296-6600 TIY 206-296-7217 www.kingcounty.gov November 27, 2007 Mei-Shiou Lin Triad Associates 12112115htAve NE Kirkland, WA 98034-6929 RE: 'Recreation/Landscape Plan Approval -File No. L07MI065 Plat of Martin (Preliminary Plat# L05P0019 / Engineering L07SR015) Dear Ms. Lin: This letter is in response to your most recent revisions made on November 7, 2007, as well as supporting documentation submitted on November 15, 2007. As a result of this documentation, your landscape and recreation space plan for Tract "A" of the Plat of Martin is approved with the following conditions: 1. The equipment (structures, benches, picnic table, etc.) shall meet at a minimum, Consumer Product Safety Standards and be appropriately anchored. 2. Walkways shall be constructed of a material and grade that is accessible for disabled under the Americans with Disabilities Act (ADA). 3. Fencing shall be installed as shown on plan page L2 Of 6. 4. Street trees, significant tree retention shall be reviewed with the engineering plans and are not part of this approval. A revised recreation/landscape plan may be required, in the event modifications are made to the significant retention plan. The landscaping and recreation space improvements (i.e. big toy, benches, and table) must be installed and inspected or a performance bond posted, prior to plat recording. The amount of the performance bond has been established at $41,998.45. This includes landscaping, equipment, surfacing materials, etc. The bond amount includes a thirty-percent contingency. Note this approval does not include street trees or bonding for significant tree removal/replacement. These will be reviewed in conjunction with the engineering plans. An inspection fee is also due prior to recording. This fee covers the cost of an installation inspection and a maintenance inspection. The amount of the inspection deposit will be determined by the Land Use Inspection Section (LUIS). If a performance financial guarantee is posted, the improvements must be installed within two year's from the date of recording. At the time of inspection by the Land Use Inspection Section, if the improvements are fully installed per the approved plan, the performance financial guarantee may be reduced. , -. • I l L07MI065 November 27, 2007 Page 2 Enclosed is a copy of the approved plans for your records. If you have any questions please contact the following: Karen Scharer at 206 296-7114 or karen.scharer@kingcounty.gov. Financial Guarantee/Finance billing hotline at 206-296-6659 or fgmu.ddes@kingcounty.gov. Inspections/ Land Use Inspection Section at 206 296-6642. Sincerely, c/<-- Karen Sch er, Project Ma·nager • Current Pl nning Section, LUSD cc: Pete Dye, P.E., Senior Engineer, Engineering Review Section, LUSD w/approved plan · Claire Jonson, Engineer, Engineering Review Section, LUSD w/approved plan Joanne Carlson, ASII, Engineering Review Section, LUSD w/approved plan Steve Townsend, Supervising Engineer, Land Use Inspection Section, LUSD w/approved plan Financial Guarantee/Finance Billing, ASD w/ approved plan L07MI065 w/approved plan I J f I .® LANDSCAPE BOND QUANTITY FORM t..:i11g Cuu11l) Dl·p,u·tm,·nt uf O,·,·d11 p111,·11! uud En\'irnnm,.,ntHI Scr\'iccs 9Pll Oakcsd;1h: Avenue SW Rt:nton, Washington 98055-1219 PROJECT NAME: Martin Property: Recreation plan DOES PROJECT#: ADDRESS: SE 125th Street; King C. PREPARED BY: Mei-shiou Lin, Triad Assoc. DATE PREPARED: Oct. 29, 2007 DRAWING DATE: Oct 29, 2007 Bonds are based upon required landscaping only and will be posted for performance and/or maintenance Required landscaping includes perimeter landscaping, surface parking area landscaping, (KCC 21A.16) and any landscaping required by SEPA environmental review. The maintenance period is for the life of the project, however, after posting for maintenance, the performance bond will be reduced by 30% ($1,000.00 minimum) and be held ror a two year period. Upon re-inspection of the slte the bond will be released if the site has been properly maintained (21A.16.180). If the project has not been maintained and there are dead trees, shrubs, ground cover, or other deficiencies noted in the required landscaping the bond will be held until the deficiencies are corrected .···.· ·: <.::,. \ /' '<:.i'.\t'· " ... ,, ,. , ,'t)"'')' !; ;',\/ii\, ,Ji'):''' ,:,:~:i2~:'''• . ., ' ,,' '( .,. •.·. ,, ' ' ., .,. '}} ''S: :":\~, +TY ~~:·····,:· . . • ' 'I ' •. , . _--.. ',, .. ,.;, ' -<:; .. Id ''QUANTff'Y .•... ,'· i' . . . " i: ' ,,, i • ' • UI\JH _I • ',' . .,. SOD LAWN AREAS $500.00 MSF (1000 SQ. FT) 0.00 HYOROSEEDING: LAWN $50.00 MSF (1000 SQ. FT) 6.00 $300.00 HYDROSEEDING: INFILTRATION PONDS $50.00 MSF (1000 SQ. FT) 0.00 AQUATIC PLANTS $500.00 MSF (1000 SQ. FT) 0.00 RAIN GARDEN PLANTING $500.00 MSF (1000 SQ. FT) 0.00 $1.00 SQ. FT 0.00 SOIL PREPARATION A. TOPSOIL: SHRUB & TREES {6 INCHES DEEP) $25.00 CY (CUBIC YARD) 50.00 $1,250.00 TOPSOIL: LAWN AREA (4 INCHES DEEP) $25.00 CY (CUBIC YARD) 74.00 $1,850.00 B. MULCH (2 IN.) $24.00 CY {CUBIC YARD) 13.00 $312.00 C. PEAT MOSS (TWO INCHES DEEP) $2.30 SY (SQUARE YARD) 0.00 0. COMPOST (3" deep & tilling) included w/plant'g $26.00 SY (SQUARE YARD) 0.00 E. FERTILIZER included w/tree and shrub plant'g $6.67 CY (CUBIC YARD) 0.00 PLANT MATERIALS A. DECIDUOUS TREES (INTERIOR LANDSCAPING OR OTHER REQ'O LANDSCAPING) 2.0" CALIPER (minimum height 10') $250.00 COST & LABOR 0.00 $0.00 1.75" CALIPER (minimum height 10') $200.00 COST & LABOR 3.00 $600.00 MUL Tl TRUNK (minimum height 6') $120.00 COST & LABOR 2.00 $240.00 8. EVERGREEN TREES 8' hi: $150.00 COST & LABOR 4.00 $600.00 C. SHRUBS (5 Gallon) $45.00 COST & LABOR 0.00 C. SHRUBS (2 Gallon) $30.00 COST & LABOR 119.00 $3,570.00 SHRUBS (1 gallon) $10.00 COST & LABOR 123.00 $1,230.00 SUB TOTAL BOND AMOUNT BOND AMOUNT SUB TOTAL: 'AGE 1 OF 3 $9,952.00 J ' ' '. ;; -,,: . , , ,·· .. . ··. . ',:i::,:r::::!;i::; ;'~I~i~!i 1,:11,;: ' ,,.,,,-, ..... ·, .. , •i,;;·I . ':!/··i ;I" ' ' ·i ;' . ., : •• 1 ·, r-., .. -,,·r,(;;, ,. ' ,Uf.J1;1Jt:i!p'{ ' .. ·,~/:.~R;'/;i?~·····•' ....• : , ... . ' ·' ' .. :· ·' ·,, .. }·.. ; ..... :. 'DNIT.'R.RIGE: .. ", ,!; ' "' 0. GROUND COVER {1 Gallon) $8.00 COST & LABOR 0.00 GROUND COVER (4 inch Pots) $4.00 COST & LABOR 0.00 • • ' . MISCELLANEOUS TREE STAKES: included w/ tree planting $2.65 PER STAKE & LABOR 0.00 FENCING LINEAR FOOT 3.5 FT. WOOD SPLIT RAIL $12.00 INCLUDES LABOR 176.00 $2,112.00 IRRIGATION IRRIGATION: Tract A $0.50 SQUARE FOOT 8,731.00 $4,365.50 ADDITIONAL ITEMS ' SURFACES CONCRETE PAVING/ WALK $25.00 Sq. Yd. 87.00 $2,175.00 PLAYGROUND EQUIPMENT : All Unit Prices include delivery and lnstallatio PLAY STRUCTURE $9,183.00 LS (LUMP SUM) 1.00 $9,183.00 PLAY SURFACING ( 12 INCH DEPTH) $2,106.00 LS (LUMP SUM) 1.00 $2,106.00 PLAY SURFACE PERIMETER EDGING $14.00 LF (INCLUDES LABOR) 57.00 $798.00 SUB TOTAL BOND AMOUNT BOND AMOUNT SUB TOTAL: $20,739.50 , PAGE 2 OF 3 ) ·,·: ',' ,_ ••. :i2'i:iU) '\<·· :.}fj;··.·····., ... i .. ·/i··:.,;.·········i'''I , ... ,.,. ,. ' ,, . : . ,:,\:\,'.:,,;--,-,, -::>-:·,:.,-;: ,: ' ., ,. ;, (.:,.:: .·-.-:: ' .. · .. , •' /E(,,{/~ . .. , ,· .. ' ., ·,, · !>!UNITRRI.CE, · .. iuN ,,·:iT·r;-,,, ,-''''"•~·"''"w,, y\/·:, ... ~ SITE FURNISHINGS: All Unit Prices include delivery and Installation WOOD BENCHES $540.00 EACH 1.00 $540.00 PICNIC TABLE $1,075.00 EACH 1.00 $1,075.00 THIRTY·PERCENT CONTINGENCY FEE $9,691.95 , TOTAL BOND AMOUNT TOTAL BOND PRICE: $41,998.45 Note· 1. Street trees are calculated in Significant Tree bond quantity worksheet. 2. Cost for landscape improvements in detention tract Bis bond separately and lo be review by the engineering section. PAGE 3 OF 3 ·Pacific Outdoor Products:: The Priority of Play • Timber Playsystems • Steels stems • Premier Playsystems • Poly Playsystems • Preschool Playsyste ms • Components Age range: . : Activities : Materials: w ,.,., ~·~ . -~ http://www.pacificoutdoor.co m/playdetails.asp ?id= TC -1183 20 -24 kids 2 -5 years 6 WOOD or STEEL Page 1 of 2 11/2/2007 ·Pacific Outdoor Products:: The Priority of Play Page 2 of 2 http://www.pacificoutdoor.com/playdetails.asp?id =TC-1183 11/2/2007 • TIMBER PLAVSYSTf.M •. 't WOOd play str uctures actl an attractive. natural element to y<>ur pl ayground . All of our st ructural wood Is treated wi th non-tadc N:.Q preservative. ACQ pressure treated wood is EPA appro,,ed and contains no CCA (Cllranlum-Copper Arsenic). Tlis process IS environme ntally f nendly and does not seep into the soil . Most Importantly. it poses no danger t o childre n. ACQ protects agai nst dry rot. decay anct termite attack. and It weathers to a war m brov.,i color. Because N;Q cont ains no arsenic or cCJC>l)el'-chrornum, safet y Is enhancro for our craftsmen anct dsposal Is not an environment al concern. FEATURES: • All of our beame i,. hlnd -.. tectecl, routecl , drllled 1nc1 .. nc1ed to ~...., , .. ure t he qu1llty ; 'r.::> we hive become lln9wll nr. • Our eJ1tc luelYe caet collar eyetem allow• for ... , lnetallltlon and modular d"''"' • !lltcluelve cuetom ecale model• can be u"d for dleplly and fundralelnc. • More economical than et eel etruct uree and N•Y to lnet a ll. • Warm, ratura I, durable incl lonii la• tln 1& -blend• Into the emtronment . • No pla y etructure le too emall, -can dffl1&n to flt any budC •t or efze re "°'lremente. Ortre>rluSMcast rol!arsystem a/1cws{or eas,IIIS(Q/Jattonand modulardes/gll All p!pi5a1Pcappe/ wttha pol)(a1fxlnatt end cap fordunhl/Jty am uiety Allofourb81J11Sall!lrmd-sdc.ctat routed drlllal and sands/ to/lS5Ur~ tJie~tywehtn,ba:ome .btownfor ····· ····· • • / see bur lll'W ••• : Premlt>rc ·: ~ Pia yst l'lnS on : \ !Jil&CS 16 ll / •• •• ········· . / Don't forgetto • • • . .I.J : provide and maint,1in ~ ..iiilililll- : a cushioning ground • •. cover under all • \ equipment! • • ••• • • . . .. . . .. Warranty Information PLAY GROUND EQUIPMENT: All structural upright posts carry a 30 year warranty against structural failure due to corrosion, deterioration or faulty workmanship. All other components carry a one year warranty against defects in materials and workmanship. Warranty becomes , effective on the date of delivery. Checking and cracking are a natural characteristic of wood products and should be expected. Normal checking and cracking does not affect the structural integrity of the structure and is not covered under this warranty. SITE AMENITIES: All site amenities carry a one year warranty against structural failure due to corrosion, deterioration or faulty workmanship, effective on the date of delivery. CONDITIONS: Replacement parts will be furnished free of charge (shipping and l abor excluded) subject to the following conditions: (1) The warranty applies only to the original purchaser. (2) All returns must be approved in advance. (3) Structure assembled improperly, not to factory instructions or altered without authorization, will void the warranty. Warranty does not cover damage caused by vandalism, abuse, neglect or acts of nature. Photographs or faulty pieces may be required to determine eligibility for replacement parts. Safety by Desi.2n We take your children's sarety seriously. To provide them with a safe play envirorrnent we design all of our play equipment to meet or exceed current US Consumer Product Safety Commission (CPSC) and American Society of Testing Material (ASTM) guidelines. For more safety information contact the Consumer Product Safety Commission at (800) 638-2772 or American Society for Testing and Materials at (610) 832-9585. In addition, all of our design work is done by a nationally certified Playground Safety Inspector (NPSI) and we are a member of the International Play Equipment Manufacturers Association (IPEMA). ADAAG Play Areas Is ADA accessibility one of your concerns? Will it be in the future? There are many factors to consider when creating ADA accessible play areas and we will be happy to work with you to meet your current and future needs . our structures have been designed with ADA access in mind and most can be modified to your particular needs. For more information contact the United States Access Board at (800) 872-2253 or visit their website at www.access-board.com. Product Specifications See your dealer for product specifications . Product specifications are subject to change without notice . ' w w w . p <1 f i fi r o u l d o o r . r o m ' Standard Product Specifications METAL FINISH: metal parts are stainless steel, galvanized, zinc plated, zinc, aluminum, or powdercoated to resist rust and corrosion. TIRE SWING SWIVEL: Revolving tire swings are suspended from a custom designed and manufactured ball bearing swivel in a fully enclosed housing. The tire swing housing consists of 356-alloy sand cast heat-treated aluminum. The swivel is fitted with a grease fitting to facilitate periodic lubrication. BELT SWINGS: Belt swing seats consist of fiexible rubber 6" wide with slash-proof reinforced metal inserts. TODDLER SEATS: Toddler seats consist of flexible rubber with additional back support for smaller children and must include a safety chain across the front. BABY BUCKET: The baby bucket consists of a fully enclosed one-piece reinforced rubber seat. POLY PANEL: The one-piece poly panel is manufactured of rotationally molded polyethylene. The 24" diameter opening is used as a crawl through or for attaching a polycarbonate bubble or window. TWO-PIECE POLY PANEL: The two piece poly panel is manufactured of rotationally molded polyethylene. The two pieces are bolted together using zinc plated button head bolts and threaded inserts. The 24" diameter opening has a recessed groove into which either the rim of a galvanized steel barrel or the fiange of a rotationally molded polyethylene tunnel fits. STEERING WHEEL: The steering wheel is custom designed and manufactured of rotationally molded polyethylene. The 15" diameter wheel spins freely on a center hub and pipe assembly. BUBBLE/WINDOW: Available as either a bubble or a flat window, manufactured of clear, impact resistant Lexan, the bubble or window attaches to the poly panel with tamper resistant screws. TIRES: Tires are cleaned, re-conditioned or re-manufactured auto tires with sturdy casings. Tires are used for tire swings, tire nets, and climbing tires. All tires are pre-drilled with appropriate holes for attaching hardware and for drainage. Under no circumstances are steel belted tires used. GYM RINGS: Gym rings are custom designed and manufactured from 356-alloy sand-cast heat- treated aluminum. Gym rings are used in pairs or in a traverse configuration. TIC-TAC-TOE PANEL: The tic-tac-toe panel consists of a rotationally molded plastic double walled frame and nine blocks with a.250" wall thickness. The blocks turn independently on galvanized steel tubing. The frame is drilled with mounting holes. PEEK-A-BOO PANEL: The peek-a-boo panels are rotationally molded polyethylene. They are custom designed to offer an excellent barrier for deck openings. Because of the specially designed openings in the panel, visual supervision is maintained. WOOD TIRE SWING BEAM: When a tire swing uses 5-hole support beams, a 12' 6"x6" (nominal) wooden beam is used. This beam is approximately 6-1/2' high. COIL CLIMBER: The coil climber center support pipe is 1-7/8" OD SS 40 galvanized steel pipe. The coils of the climber are 1/38" OD SS-20 galvanized steel pipe. Models for various deck heights are available. Timber Playsystems Product Specifications WOOD: Wood beams are Hemlock or Fir. Beams are planed smooth and cut to specific lengths. Edges of beams are rounded, ends are beveled, and holes are drilled through on where needed for connecting pieces. Beams are then pressure treated with a non-toxic ACQ wood preservative and stained a natural brown. Support beams are 6" x 6" (nominal) dimension or 4"x6" (nominal) dimension. Other wood components are of 2"x6" (nominal) and 4"x4" (nominal) dimension. PIPE: All connecting pipe is 1-3/8" OD SS-20 galvanized steel pipe. All pipe is pre-cut to the appropriate length and all exposed cut ends are securely capped with high impact UV stabilized polycarbonate end caps. COLLARS: Custom manufactured zinc collars with plated set screws are used to secure all pipes into and through wood beams. Each collar is secured to the beam with two galvanized nails. Collars are self-aligning to center collar into beam hole. The completed beam/pipe/collar assembly forms an extremely solid framework. CHAIN-Chain used for swings, chain nets, and chain walks is 1/4" galvanized proof coil. Chain used for the suspension bridge is 1/4" galvanized high test and hardened. PARALLEL BARS: The parallel bars consist of two eight-foot long, 1-3/8" OD SS 40 galvanized steel pipes. SWING HANGERS: Swing hangers consist of a galvanized ductile iron bracket utilizing a bronze oil-impregnated bushing and galvanized ductile iron swing hanger. The entire assembly is bolted through the overhead beam with zinc-plated bolts, washers and locknuts. All swings use galvanized 1/4" proof coil chain for support. STAINLESS STEEL SLIDE: The stainless steel slide is either 18" or 36" wide. The slide bed is 16 gauge T-304 polished stainless steel. Side rails are galvanized steel D-shaped pipe with a minimum height of 4". The slide bed is attached to the side rails with stainless steel rivets and is reinforced from underneath with galvanized steel braces. The slide top deck connector is 11 gauge T-304 polished stainless steel. Available in 7' and 10' lengths. SPIRAL SLIDE: The spiral slide components are all rotationally molded plastic. The spiral slide uses double-wall construction with a.250" wall thickness. The sections interlock using 3/8" T-nuts that are molded-in and 3/8" button head socket cap screws, Each section slides over a 4-1/2" OD Schedule 10 galvanized steel center support post. Spiral slides are available in two heights: 72" with six sections making a 360 degree revolution and 54" with five sections making a 270 degree turn. S-TUBE AND STRAIGHT TUBE SLIDES: Tube and straight tube slide components are rotationally molded plastic. The double-wall construction has a .250" wall thickness. The sections interlock using 3/8" T-nuts that are molded-m and 3/8" button head socket cap screws. Various configurations and heights are available depending on the components used. STEEL TIRE SWING BEAM: When a tire swing uses 6-hole support beams, a 16' long 4-1/2" OD SS 40 galvanized steel pipe is used for the swing beam. The steel swing beam is approximately 8' high. The pipe end caps are permanently riveted in place. The pipe is powdercoated blue. TIRE NET: Tire nets consist of either four or six tire configurations. Tires are pre-drilled with assembly, attachment, and drain holes. The upper and lower two tires attach to pipe rungs using 5/8" zinc plated machinery eyebolts. Steel Systems Product Specifications METAL FINISH: All metal parts are stainless steel, galvanized, or powdercoated to resist rust and corrosion. POWDERCOATING: Powdercoated parts are electrostatically polyester powdercoated to a thickness of 3 mils. Powdercoating provides a colorful surface that resists wear and weather. POSTS AND BEAMS: Standard posts are 4-1/2" OD 11 gauge galvanized steel or aluminum pipe with a .012" wall thickness. All overhead swing beams, arches, and arch supports are 4-1/2" OD SS 40 galvanized steel pipe with a .237" wall thickness. If specified, 4-1/2" OD SS 40 galvanized steel pipe is available for all support posts. COLLAR SETS: Collar sets are 356 T-6 heat-treated permanent mold cast aluminum alloy. Collar sets consist of two halves. The collar sets have been designed to permanently attach accessories to support posts. Attachment hardware which consists of two plated socket head cap screws, two plated flush mount t-nuts, and two 1 /4" x 1" stainless steel roll pins are included with each collar set. The collar sets are powdercoated. PIPE CAP: Pipe caps are AS-CAST/356F sand-cast aluminum alloy. All exposed ends of posts and beams are capped with an aluminum post cap that is riveted in place. End caps are powdercoated. ARCHED CLIMBER: The arched climber consists of two curved 4-1/2" OD galvanized steel Schedule 1 O pipe rails and eight 1-3/8" OD galvanized steel pipe rungs permanently welded in place, spaced at 12" intervals. The arched climber is powdercoated and held in place with two collar sets. STEEL DECK: The steel decks are made of 2"x3" angle iron and 3/16" expanded steel. Steel decks are plastic coated with 1 /8" thick PVC coating, bonded to steel with anti-corrosion epoxy primer. The standard deck is 48 "x 48"; OVERHEAD SWING BEAMS: All overhead swing beams are 4-1/2" OD SS 40 galvanized steel pipe with a 4" OD SS 40 galvanized steel sleeve permanently welded in each end. Each end of overhead swing beams fit into a 4-1/2" OD SS 40 galvanized steel pipe connector which is permanently welded to either a swing arch or support post. Attachment is with 5/8" plated bolt and plated acorn nut. FIRE POLE: Fire poles consist of 1-7/8" OD Schedule 10 galvanized steel pipe with a 1-3/8" OD SS 40 galvanized steel connector pipe permanently welded in the end for connecting to support post with collar set. PARALLEL BARS: Parallel bars consist of two powdercoated, 1-3/8" OD, SS 40 galvanized steel pipe. The parallel bars are eight feet in length and connect to support posts with four collar sets. BANISTER SLIDE: The banister slide consists of two powdercoated 1-7/8" OD Schedule 10 galvanized steel pipe with a slope of 30 degrees. Each banister slide rail connects to the adjacent support post with one collar set. Each rail also rests on and bolts to the deck. STANDARD SLIDE: Standard slide consists of a bed made from 24" wide 16 gauge T-304 polished stainless steel. The side pipe rails are 4-1/2" OD Schedule 10 galvanized steel pipe which is powdercoated. The top deck connector is 11 gauge polished stainless steel. The side pipe rails are extended to be footed into the ground. The slide bed is attached to the pipe side rails with stainless steel rivets and is reinforced from underneath with galvanized steel braces. WIDE SLIDE: The wide slide is identical to the standard slide with the exception of the slide bed, which is 36" wide instead of the standard 24". HORIZONTAL LADDER: The horizontal ladder consists of two 4-1/2" OD Schedule 10 galvanized steel pipes with aluminum end caps riveted in each end. The nine ladder crossbars are 1-3/8" OD Schedule 10 galvanized steel pipe evenly spaced and permanently welded in place. The horizontal ladder attaches to the support posts with four collar sets. CHAIN NET: The chain net is constructed of 1 /4" galvanized steel chain into a net of 12" squares. All chain connections are formed using galvanized S-hooks. The chain net assembly attaches to two 1-3/8" OD SS-20 galvanized steel pipe rails with eight 1-3/8" ID plated steel shaft collars. The pipe rails attach to four support posts with four collar sets. CHAIN WALK: The chain walk consists of two eight foot 1/4" galvanized steel chain sections. The chain sections attach to the support posts with four collar sets. BALANCE BEAM: The balance beam is a 12' long 4"x6"(nominal) Western Red Cedar beam. The balance beam connects to the support posts with two collar sets. POLY TUNNEL: The poly tunnel is rotationally molded polyethylene 24" in diameter. Each end of the poly tunnel has a flange that fits into a corresponding recess in the poly panel. The attachment for the tunnel assembly to the support posts is four 1-3/8" OD Schedule 10 galvanized steel pipes and eight collar sets. COIL CLIMBER: The coil climber center support pipe is 1-7/8" OD SS 40 galvanized steel pipe. The coils of the climber are 1-3/8" OD SS-20 powdercoated galvanized steel pipe. Models for various deck heights are available. TIRE SWING SWIVEL: Revolving tire swings are suspended from a custom designed and manufactured ball bearing swivel in a fully enclosed housing. The tire swing housing consists of 356-alloy sand-cast heat-treated aluminum. The swivel is fitted with a grease fitting to facilitate periodic lubrication. SPIRAL SLIDE: The spiral slide components are rotationally molded plastic. The double-wall construction has a .250" wall thickness. The sections interlock using 3/8" T-nuts that are molded- in and 3/8" button head socket cap screws. Each section slides over a 4-1/2" OD Schedule 10 galvanized steel center support post. Spiral slides are available in two heights: 72" with six sections making a 360 degree revolution and 54" with five sections making a 270 degree turn. S-TUBE AND STRAIGHT TUBE SLIDES: S-tube and straight tube slide components are rotationally molded plastic. The double-wall construction has a .250" wall thickness. The sections interlock using 3/8" T-nuts that are molded-in and 3/8" button head socket cap screws Various configurations and heights are available depending on the components used. DOUBLE-RAIL AND TRIPLE-RAIL SLIDES: Double-rail and triple-rail slides are rotationally molded plastic. The double-wall construction has a .250" wall thickness. The double-rail slide is 32" high, 36" wide, and 57" long. The triple-rail slide is 43" high, 36" wide, and 69" long. GYM RINGS: Gym rings are custom designed and manufactured from 356 alloy sand cast heat treated aluminum. Gym rings are used in pairs or in a traverse configuration. The gym rings are plastisol coated. D-HANDLES: D-handles are used to assist and facilitate movement from climbing activities to decks. The D-handles are custom bent 1-3/8" OD SS-20 galvanized steel pipe. Each D-handle attaches to the support posts using two collar sets. Note: We reserve the right to change product specifications without notice. STEP RUNGS: Step rungs are used to facilitate climbing from ground to deck, or deck to deck. Step rungs are 1-3/8" OD galvanized steel pipe. Each step rung attaches to the support posts with two collar sets. WORM CLIMBER: The worm climber consists of 1-7/8" OD SS 40 galvanized steel pipe side rails and 1-3/8" OD SS-20 galvanized steel pipe climbing loops permanently welded into a one-piece unit. The end supports are 1-7/8" OD SS 40 galvanized steel pipe. Worm climbers are designed for 42" and 56" deck heights. TIRE NET: Tire nets consist of either four or six tire configurations. Tires are pre-drilled with assembly, attachment, and drain holes. The upper and lower two tires attach to pipe rungs using 5/8" zinc plated machinery eyebolts. The tire net assembly attaches to support posts with four collar sets. ARCHED HANO-OVER-HANO: The arched hand-over-hand consists of 1-7/8" OD SS 40 galvanized steel pipe side arches. Hand-over-hand rungs consist of 1-3/8" OD SS-20 galvanized steel pipe. The horizontal span of the arched hand-over-hand is 102" between support posts. The entire assembly is permanently welded into one piece and attaches to four support posts with four collar sets. • Pacific Outdoor Products -PT-38 ADA Square picnic table Recycled Plastic Frame Color -Black In ground mount Heavy duty single pedestal 3-sided table to meet ADA standards -in wood or plastic Picnic Table Pacific Outdoor Products -BP25 6' length Recycled Plastic Frame Color -Black In ground mount Bench • • Pacific Outdoor Products -PM1403 Area (soft surface) Capacity Age range Activities Colors Slide Roof . Uprights 30' X 24' 20-24 children 2-5 years old 6 Green Green Green Play Structure-2-S year olds --... • Response to request of additional information For Martin Property King County, WA Recreation/Landscape Activity No. L07MI065 • Detailed Manufacture's specifications for Play equipment TC-1183 • Recreation Plan bond quantity Form l tni ~ n VJ (J /(/ Jo -_Rev,s,oM}~ro,. ()g 5' Camwe~l, elopment '01 ~~t~OW~rR\ ... !1if 'P\fP>o 7 2007 JJ; Triad Job Number: 04-257 (6. D.D.E.s. November 5, 2007