Reg 2018-12-03 Item 4F - Grant Agreement - East Marginal Way South Stormwater Outfalls with WA State Department of Ecology for $1,475,000 (Includes $368,750 City Match)

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' 'WIN, DEPARTMENT 0 F u1 W CILIL , State of Washington Agreement No. WQC-2016-Tukwil-00132 WATER QUALITY COMBINED FINANCIAL ASSISTANCE AGREEMENT BETWEEN THE STATE OF WASHINGTON DEPARTMENT OF ECOLOGY AND CITY OF TUKWILA This is a binding Agreement entered into by and between the state of Washington,Department of Ecology, hereinafter referred to as"ECOLOGY,"and City of Tukwila,hereinafter referred to as the"RECIPIENT,"to carry out with the provided funds activities described herein. GENERAL INFORMATION Project Title: East Marginal Way South Stormwater Outfalls Total Cost: $1,475,000.00 Total Eligible Cost: $1,475,000.00 Ecology Share: $1,106,250.00 Recipient Share: $368,750.00 The Effective Date of this Agreement is: 07/01/2018 The Expiration Date of this Agreement is no later than: 06/30/2021 Project Type: Stormwater Facility Project Short Description: This project will improve water quality in the Duwamish River through the installation of conveyance, stormwater treatment facilities, and permeable pavement, as well as lining a leaky storm pipe along East Marginal Way South in the city of Tukwila.This project will provide water quality treatment for total suspended solids(TSS), and will reduce groundwater contamination. Project Long Description: The project improves the water quality in the Duwamish River by treating stormwater outfall discharges from a municipal drainage basin serving a portion of East Marginal Way South(EMWS). EMWS is a heavily traveled five-lane roadway that does not have provisions for water quality treatment.The project will treat stormwater runoff from EMWS prior to its discharge into the Duwamish River within the Lower Duwamish Waterway Superfund site. The RECIPIENT will build a new conveyance system along approximately 0.4 miles of EMWS.The system 127