Washington Department of Ecology 7/27/2023

Page 9 of 46State of Washington Department of Ecology Agreement No: Project Title: Recipient Name: WQC-2023-EverPW-00118 Regional Stormwater Facility Planning City of Everett SCOPE OF WORK Task Number:2 Task Cost: $51,284.00 Task Title:Project Planning and Preparation Task Description: The RECIPENT will draft an Assessment Approach Memorandum . The Memorandum will detail an approach to identify regional facility alternatives. The RECIPIENT will use information from the Receiving Water Conditions Assessment (RWCA) to identify potential stormwater facility types and contributing areas. The RECIPIENT will develop a framework and tools to guide the facility and site selection process. A.The RECIPIENT will review the City of Everett Surface Water Comprehensive Plan , RWCA, stormwater complaint records, and existing treatment facility locations to select areas within the City to include in the Regional Facility Assessment . This will include identifying and confirming known stormwater management influences (SMI), stream erosion, water quality issues, and identifying existing flow control and water quality treatment facilities. The RECIPIENT will map areas with unmitigated or partially mitigated pollution generating and non-pollution generating impervious surfaces and flood control exemption boundaries. B.The RECIPIENT will host a maximum of three meetings with stakeholders, to include representatives from Public Works (Surface Water Management, Transportation and Maintenance), Parks, and Community, Planning & Economic Development. The purpose of these meetings is to receive feedback regarding facility type preferences and locations of planned improvements. C.The RECIPIENT will develop metrics to evaluate water quality and flow control facility alternatives and to compare the cost between implementing site-specific best management practices (BMPs) and regional facilities. The RECIPIENT will develop metrics to rate the facilities based on the City’s priorities, vision for stormwater, and feedback received at the stakeholder meetings. The RECIPIENT will also consider cost, operations and maintenance, treatment efficiency, and siting requirements. D.The RECIPENT will develop a list of the water quality and flow control facilities for consideration in the Assessment Approach Memorandum. Task Goal Statement: The RECIPIENT will develop metrics based on available data to rate facility types and locations . Task Expected Outcome: The project will complete analysis on available data and facilitate stakeholder meetings to inform the completion of an Assessment Approach Memorandum which will identify water quality and flow control facilities to be considered , and the approach for selection of facilities. Template Version 12/10/2020 DocuSign Envelope ID: 2DF45A90-96AE-464E-848B-4CA1529CAE01