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Home My WebLink AboutD_Shoreline_Exemption_and_Exhibits_BRPS_200421_v1DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT PLANNING DIVISION CERTIFICATE OF EXEMPTION FROM SHORELINE SUBSTANTIAL DEVELOPMENT DATE: April 21, 2020 PROJECT NUMBER: LUA20-000089, SME PROJECT NAME: King County Black River Pump Station Improvements, Phase 1 – High Use Engines PROJECT MANAGER: Clark H. Close, Senior Planner PROPERTY OWNER: City of Renton, 1055 S Grady Way, Renton, WA 98057 APPLICANT: Tom Bean, King County Water and Land Resources Division, River and Floodplain Management Section, 201 S Jackson St, Suite 600, Seattle, WA 98104 CONTACT: George Ritchotte, Herrera Environmental Consultants, Inc., 2200 Sixth Avenue, Suite 1100, Seattle, WA 98121 PROJECT LOCATION: 550 Monster Road SW, Renton, WA 98057 PROJECT DESCRIPTION: The applicant, King County Department of Natural Resources and Parks, Water and Land Resources Division, in coordination with the King County Flood Control District, is requesting a Shoreline Exemption to replace and refurbish major components of the Black River Pump Station (BRPS). The BRPS is located on a concrete dam that spans the Black River channel, conveys all Springbrook Creek flow to the Green River, and is a critical component of the Green River flood control system. The pump station protects against signification flood damage that could occur if the Green River flood flows back up in the Black River. Repair of the high-use pumps and replacement of the high-use diesel engines and electric motor constitute the first of planned improvements at BRPS located at 550 Monster Rd SW (APN’s 3779200090 and 7229500281). The project is located in the Resource Conservation zone and is within the Black River/Springbrook Creek Shoreline Jurisdiction, Reach A (BRSC-A). The Black River is a Shoreline of the State and a Type S stream. The BRPS has operated continually since it was constructed in 1972 and includes eight flood control pumps: one electric motor-driven pump (P1) and seven diesel engine-driven pumps (P2-P8). The primary function of the BRPS is to pump river water from the Black River to the Green River under normal conditions, as well as during flood conditions. As part of this normal maintenance program, King County proposes to replace the high-use engines associated with pumps P1, P2 and P4 along with other critical systems to preserve the existing pump station capacity. The new diesel engines would include emission control equipment to meet current code requirements and exhaust pipes and silencers would be replaced for three of the diesel engines on the exterior of the pump house. The hardware connecting the pumps and pipes is located above normal forebay water level. In-water work would be limited to raising and lowering the pumps and pipes. Prior to the start of DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 City of Renton Department of Community & Economic Development Black River Pump Station Improvements, Phase 1 - High-Use Engines Administrative Report & Decision LUA20-000089, SME Report of April 21, 2020 Page 2 of 4 D_Shoreline_Exemption_BRPS_200421_v1 the pump removal, stoplogs may be installed in pump house bays for dewatering. If stoplogs are used, water would be pumped from each isolated pump bay to facilitate removal and reinstallation of the pumps. Dewatering water would be pumped to an upland location before discharge back to the Black River. Water would be treated to State water quality standards prior to discharge. Screened intakes would be used on all temporary dewatering pumps. Functioning fish screens are currently in place on the southern pump bays where the high-use pumps are located. All construction work would be contained within the existing fenced areas north and south of the pump house, with most work taking place within the existing structures at the pump station. Design work is scheduled to be finalized by summer 2020 and project construction is estimated to occur from fall 2020 through the end of 2021. King County issued a SEPA determination of non-significance (DNS) for this proposal under WAC 197-11- 340(2) on March 26, 2020 and a revised DNS on April 13, 2020. (See attached.) RMC 4-3-090.F.5.a, establishes review criteria for permitted flood control projects; the applicable criteria is addressed below: Permitted Flood Control Projects: Flood control works shall be permitted when it is demonstrated by engineering and scientific evaluations that: i. They are necessary to protect health, safety and/or existing development; Staff Comment: The proposed high-use pump, engine, and motor replacements and repairs to Black River Pump Station (BRPS), located on a concrete dam that spans the Black River channel, conveys all Springbrook Creek flow to the Green River and is a critical component of the Green River flood control system. The station has operated continually since it was constructed in 1972 and includes eight pumps (P1-P8). The primary function of the BRPS is to pump river water from the Black River to the Green River under normal condition, as well as during flood conditions as defined by the Green River Management Agreement of 1985 (Green River Basin Program 1985). The pump station protects against significant flood damage that could occur on developed lands in Renton, Kent, and Tukwila if the Green River flood flows back up in the Black River. The applicant is proposing to replace or refurbish major components of the BRPS. This work includes replacing the high-use engines (associated with pumps P1, P2 and P4) along with other critical systems. This work would preserve the existing pump station capacity by refurbishing or replacing the existing high-use pump engines and ancillary equipment. In addition, new emissions control equipment would be installed to meet current code requirements for the diesel engines that are being replaced. Exhaust pipes and silencers on the exterior of the pump house would be replaced for three of the diesel engines. ii. Nonstructural flood hazard reduction measures are infeasible; and Staff Comment: The proposed high-use pump, engine, and motor replacements and repairs to BRPS would be considered normal maintenance or repair of existing structure or developments. All repairs would be considered nonstructural, see attached drawings. iii. Measures are consistent with an adopted comprehensive flood hazard management plan that evaluates cumulative impacts to the watershed system. DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 City of Renton Department of Community & Economic Development Black River Pump Station Improvements, Phase 1 - High-Use Engines Administrative Report & Decision LUA20-000089, SME Report of April 21, 2020 Page 3 of 4 D_Shoreline_Exemption_BRPS_200421_v1 Staff Comment: The proposed high-use pump, engine, and motor replacements and repairs to BRPS is consistent with an adopted comprehensive flood hazard management plan that evaluates cumulative impacts to the watershed system. To minimize the potential for any adverse impacts, best management practices (BMPs) would be implemented. In addition, the existing pump engines would be replaced with new engines that meet US Environmental Protection Agency (USEPA) Tier 3 emission standards, resulting in much cleaner combustion. The original design concept was to implement Tier 4 emission controls for the two diesel engines being replaced. The Tier 4 concept was problematic because Tier 4 emission controls require longer continuous engine operations than is possible with the limited periods of high inflows to the pump station. The design changed to use Tier 3 controls instead of Tier 4. SEC-TWN-R: SW ¼ of Section 13, Township 23N, and Range 4E W.M. LEGAL DESCRIPTION: JUNCTION ADD POR TRS 21-22-23-24 & 25A & POR TRS 26 & 29 RENTON SHORELANDS 2ND SUPL ADD BEG SW COR SEC 13-23-04 TH E 1271.74 FT TH N TAP ON BDRY LN BET TRS 28 & 29 OF SD RENTON SHORELANDS 2ND SUPL ADD & TPOB TH CONTG N 275 FT TH W 280.69 FT TH S 59-53-47 W 377.52 FT TH S 74-13-19 W TO ELY MGN OF CO RD TH SELY ALG SD ELY MGN TO SLY BDRY OF SD TR 29 TH ELY ALG SD SLY BDRY TO TPOB ALSO BEG TPOB ABOVE DESC TH N 250 FT TH ON TANGENT CURVE TO RGT RAD OF 627.46 FT TAP ON BDRY LN BEG TRS 26 & 27 OF SD RENTON SH LDS 2ND SUPL ADD TH SWLY ALG SD BDRY LN TO BEG LESS PORTION FOR CO ROAD LESS POR FOR RD PERREC#9704291916 RENTON SHORELANDS 2ND SUPL POR OF TR 28 ALL 30 & POR GL 6 IN SEC 13-23-04 DAF BEG S 87-26-48 E 1271.74 FT E OF SW COR TH N TO NLY MGN CO RD & TPOB TH N TO NLY LN TR 28 TH SWLY ALG NLY LN OF TRS 28 & 30-31 TO ELY MGN CO RD TH SELY & ELY ALG SD RD TO TPOB LESS PORTION FOR TRACT 31 LESS PORTION FOR CO ROAD LESS POR FOR RD PERREC#9704291916 (See attached Neighborhood Detail Map.) WATER BODY/REACHES: Black River/Springbrook Creek Reach A EXEMPTION JUSTIFICATION: An exemption from a Shoreline Management Substantial Development Permit is hereby Approved on the proposed project in accordance with RMC 4-9-190C ‘Exemption from Permit System’ and for the following reasons: Normal maintenance or repair of existing structures or developments, including damage by accident, fire or elements. "Normal maintenance" includes those usual acts to prevent a decline, lapse, or cessation from a lawfully established condition. "Normal repair" means to restore a development to a state comparable to its original condition, including but not limited to its size, shape, configuration, location and external appearance, within a reasonable period after decay or partial destruction, except where repair causes substantial adverse effects to shoreline resource or environment. Replacement of a structure or development may be authorized as repair where such replacement is the common method of repair for the type of structure or development and the replacement structure or development is comparable to the original structure or development including but not limited to its size, shape, (King County Assessor) DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 City of Renton Department of Community & Economic Development Black River Pump Station Improvements, Phase 1 - High-Use Engines Administrative Report & Decision LUA20-000089, SME Report of April 21, 2020 Page 4 of 4 D_Shoreline_Exemption_BRPS_200421_v1 configuration, location and external appearance and the replacement does not cause substantial adverse effects to shoreline resources or environment. The proposed development is: Consistent or Inconsistent with the Shoreline Management Act. Not Applicable to the guidelines of the Department of Ecology where no Master Program has been finally approved or adapted by the Department. Consistent with the City of Renton Shoreline Master Program. SIGNATURE & DATE OF DECISION: ___________________________________________________ __________________ Jennifer Henning, Planning Director Date RECONSIDERATION: Within 14 days of the decision date, any party may request that the decision be reopened by the approval body. The approval body may modify his decision if material evidence not readily discoverable prior to the original decision is found or if he finds there was misrepresentation of fact. After review of the reconsideration request, if the approval body finds sufficient evidence to amend the original decision, there will be no further extension of the appeal period. Any person wishing to take further action must file a formal appeal within the 14-day appeal time frame. APPEAL: This administrative land use decision will become final if not appealed in writing to the Hearing Examiner on or before 5:00 PM on May 5, 2020. An appeal of the decision must be filed within the 14-day appeal period (RCW 43.21.C.075(3); WAC 197-11-680). Due to Governor Jay Inslee’s Proclamation 20-25 (“Stay Home, Stay Healthy”), the City Clerk’s Office is working remotely. For that reason, appeals must be submitted electronically to the City Clerk at cityclerk@rentonwa.gov. The appeal fee, normally due at the time an appeal is submitted, will be collected at a future date. Appeals to the Hearing Examiner are governed by RMC 4-8-110 and additional information regarding the appeal process may be obtained from the City Clerk’s Office, cityclerk@rentonwa.gov. EXPIRATION: Two (2) years from the date of decision (date signed). Attachments: Neighborhood Detail Map; King County SEPA determination of non-significance (DNS) (dated March 26, 2020); revised DNS (dated April 13, 2020); Plan Drawings cc: Riley Plumb, Herrera Environmental Consultants, Inc. DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 4/21/2020 | 12:57 PM PDT BNSF RAILWAYB la c k R iv e r MONSTERRDSW 0 200 400100Feet K:\Projects\Y2017\17-06618-000\Project\Report\Figure1_BlackPump_SiteMap.mxd Figure 1: Shoreline Exemption Application Neighborhood Detail Map for the Black River Pump Station, Renton, Washington. E Citation Legend Focus Area Parcel Stream Railroad Highway UV900 RentonTukwila G reenR iver DuwamishRive rRECEIVED Clark Close 04/14/2020 PLANNING DIVISION DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 Water and Land Resources Division Department of Natural Resources and Parks King Street Center 201 South Jackson Street, Suite 600 Seattle, WA 98104-3855 206-296-6519 Fax 206-296-0192 TTY Relay: 711 Determination of Non-Significance Name of Proposal: Black River Pump Station- High Use Engines Project Description of Proposal: The Black River Pump Station (BRPS), located on a concrete dam that spans the Black River channel, conveys all Springbrook Creek flow to the Green River and is a critical component of the Green River flood control system. The pump station protects against significant flood damage that could occur on developed lands in Renton, Kent, and Tukwila if the Green River flood flows back up in the Black River. The King County Department of Natural Resources and Parks, Water and Land Resources Division, in coordination with the King County Flood Control District, is undertaking a comprehensive program to replace or refurbish major components of the BRPS. This work includes replacing the high-use engines (associated with pumps P1, P2, and P4) along with other critical systems. In addition, new emissions control equipment will be installed to meet current code requirements for the diesel engines that are being replaced. A bulk urea tank will be installed within the fenced area immediately north of the pump house to supply emissions control equipment on the new engines. Exhaust pipes and silencers on the exterior of the pump house will be replaced for three of the diesel engines. All construction work will be contained within the existing fenced areas north and south of the pump house, with most work taking place within the existing structures at the pump station. Project construction is estimated to occur from fall 2020 through the end of 2021. Location of Proposal: The Black River Pump Station is located at 550 Monster Road SW, Renton, WA 98057, in the southwest quarter of Section 13, Township 23 North, Range 4E W.M. The Black River Pump Station is located on the Black River near its confluence with the Green River. The combined rivers form the Duwamish River, which flows into Elliott Bay and the Puget Sound. RECEIVED Clark Close 04/14/2020 PLANNING DIVISION DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 Determination of Non-Significance Black River Pump Station Project Page 2 Responsible Official: Josh Baldi Position/Title: Division Director, Water and Land Resources Division Address: 201 South Jackson Street, Suite 600 Seattle, WA 98104-3855 DATE: SIGNATURE: Proponent and Lead Agency: King County Department of Natural Resources and Parks Water and Land Resources Division Contact Person(s): Tom Bean, Project Manager, 206-477-4638 The lead agency for this proposal has determined that it does not have a probable significant adverse impact on the environment. An Environmental Impact Statement (EIS) is not required under Revised Code of Washington (RCW) 43.21C.030(2)(c). This decision was made after review of a completed environmental checklist and other information on file with the lead agency. THIS INFORMATION IS AVAILABLE TO THE PUBLIC ON REQUEST (for a nominal photocopying fee). THIS DETERMINATION OF NON-SIGNIFICANCE (DNS) is issued under Washington Administrative Code (WAC) 197-11-340(2); the lead agency will not act on this proposal until after April 17, 2020. Comments must be submitted or postmarked by that date. For additional information, please contact: Tom Bean, Project Manger King County Water and Land Resources Division 201 South Jackson Street, Suite 600 Seattle, WA 98104-3855 Tom.bean@kingcounty.gov Or visit: https://www.kingcounty.gov/depts/dnrp/wlr/sections-programs/river- floodplain-section/capital-projects/black-river-pump-station.aspx March 26, 2020 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 Water and Land Resources Division Department of Natural Resources and Parks King Street Center 201 South Jackson Street, Suite 600 Seattle, WA 98104-3855 206-296-6519 Fax 206-296-0192 TTY Relay: 711 State Environmental Policy Act Revised Determination of Non-Significance Name of Proposal: Black River Pump Station High Use Engines Replacement Project Description of Proposal: The Black River Pump Station (BRPS), located on a concrete dam that spans the Black River channel, conveys all Springbrook Creek flow to the Green River and is a critical component of the Green River flood control system. The King County Department of Natural Resources and Parks, Water and Land Resources Division, in coordination with the King County Flood Control District, is undertaking a comprehensive program to replace or refurbish major components of the BRPS. This work includes replacing the high-use engines (associated with pumps P1, P2, and P4) along with other critical systems. The new diesel engines will include emissions control equipment to meet current code requirements and exhaust pipes and silencers on the exterior of the pump house will be replaced for three of the diesel engines. All construction work will be contained within the existing fenced areas north and south of the pump house, with most work taking place within the existing structures at the pump station. Project construction is estimated to occur from fall 2020 through the end of 2021. Location of Proposal: The Black River Pump Station is located at 550 Monster Road SW, Renton, WA 98057, in the southwest quarter of Section 13, Township 23 North, Range 4 East, W.M. The Black River Pump Station is located on the Black River near its confluence with the Green River. The combined rivers form the Duwamish River, which flows into Elliott Bay and the Puget Sound. DocuSign Envelope ID: 583A89F0-D34E-48E4-9131-5221A59FB8CF RECEIVED Clark Close 04/14/2020 PLANNING DIVISION DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 Determination of Non-Significance Black River Pump Station Project Page 2 Responsible Official: Josh Baldi Position/Title: Division Director, Water and Land Resources Division Address: 201 South Jackson Street, Suite 600 Seattle, WA 98104-3855 DATE: SIGNATURE: Proponent and Lead Agency: King County Department of Natural Resources and Parks Water and Land Resources Division Contact Person(s): Tom Bean, Project Manager, 206-477-4638 King County Water and Land Resources Division (lead agency) has revised its SEPA threshold Determination of Non Significance issued on April 3, 2020 in consideration of the following changes: The Environmental Checklist issued on April 3, 2020 described the new engines to replace existing engines at the Black River Pump Station as meeting “USEPA Tier 4 emissions standards, resulting in much cleaner combustion. Tier 4 engines are as much as 5 percent more energy efficient than older engines and are designed to reduce particulate and nitrogen oxide (NOx) emissions. Urea is injected into the emissions to control NOx, which is catalyzed into nitrogen gas and water.” Instead, the engines will be replaced with modern Tier 3 diesel engines, which will still result in cleaner combustion for their entire useful life (decades), with reduced particulate matter, carbon monoxide (CO), and nitrogen oxides (NOx) compared to the existing engines due to modern exhaust emissions control systems. An Addendum to the Environmental Checklist has also been prepared and will be distributed along with this revised determination. King County Water and Land Resources has reaffirmed that this proposal will not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 43.21C.030(2)(c). THIS REVISED DETERMINATION OF NON-SIGNIFICANCE (DNS) is issued under Washington Administrative Code (WAC) 197-11-340(2)(F) and does not include additional notice or comment period; the lead agency will not act on this proposal until after April 17, 2020. Comments must be submitted or postmarked by that date. DocuSign Envelope ID: 583A89F0-D34E-48E4-9131-5221A59FB8CF 4/13/2020 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 RECEIVED Clark Close 04/14/2020 PLANNING DIVISION DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 EXISTING STEEL STORAGE SHED TO BE DMOLISHED PROPOSED DEF BULK STORAGE TANK WITH TRANSFER PUMPS WITHIN PREFABRICATED SHELTER DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091 DocuSign Envelope ID: 0D2CCDE7-2C5B-4270-B5DE-B03C190EC091