TIS 2022-10-03 Item 2B - Grant Application - Public Works Shops Decant Facility Project

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Cit of Tuk la ,Public Works D,oportment lc f Pennekont , Director/City Engin r INFORMATIONAL MEMORANDUM TO: Transportation and Infrastructure Services Committee FROM: Hari Ponnekanti, Public Works Director/ City Engineer BY: Brittany Robinson, Grant Analyst Sherry Edquid, Project Manager CC: Mayor Ekberg DATE: September 30, 2022 SUBJECT: Public Works Shops Decant Facility Project Department of Ecology Grant Application Allan Ekberg, y ISSUE Authorize the submittal of a Department of Ecology (DOE) Water Quality Combined Funding Program grant for an enhanced maintenance plan (EMP) and a decant facility at the combined Public Works Shops site. BACKGROUND As part of the 2016 plan developed for the Public Works Shops projects, a decant facility was identified as a potential improvement to the future site. A decant facility is an area where stormwater, gathered by vactor trucks from catch basins and other stormwater catchment areas, can be properly disposed of. Stormwater typically contains high concentrations of contaminants. Currently, the City relies solely on a King County (KC) decant facility to dispose of their vactor waste from catch basin cleaning. The KC decant facility is located in Renton, WA which is approximately 18 miles roundtrip during peak traffic. Furthermore, since the pandemic KC has reduced their hours of operation to just three days from previously five days. Also, with the reduced hours it is often busier and there is often a line. Their hours of operation and driving distance severely limit the City on the frequency and number of catch basins they can clean along with additional costs. DISCUSSION DOE has issued a call for projects inviting applicants to submit projects for the Water Quality Combined Funding Program grant. The Water Quality Combined Funding Program grant funds projects that improve and protect water quality throughout the state. Grant applications are due on October 12, 2022. If received, grant funding would be available to the City starting in July 2023. A new requirement to receive DOE funding for maintenance projects, which includes decant facilities, is the development of an Enhanced Maintenance and Source Control Plan (EMP). An EMP is a tool that provides information on total stormwater quality infrastructure and performance costs, and helps local governments prioritize resources based on areas that pose the biggest potential risk to water quality. The City can apply for funding for an EMP as part of the grant application for the decant facility, with the condition that the City completes the EMP before starting design on of decant facility. FINANCIAL IMPACT This grant would fund the development of an EMP and the design phase of the decant facility. It is estimated that an EMP will cost approximately $100,000 and that the design for the decant facility will cost $450,000; totaling $550,000. The City is requesting $467,500 from DOE's Water Quality Combined Funding Program grant. This grant requires a 15% match, which is $82,500 for this project. Project match would come from the Surface Water enterprise fund. 5