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The project site lies adjacent to the Snohomish River. The river provides a direct discharge from the site so <br />stormwater detention for protection of downstream facilities will not be necessary. The project will rely on two <br />existing 12-inch diameter stormwater outfalls for discharge of stormwater to the Snohomish River as shown on <br />the grading/drainage plan. Because the outfalls will be used as they currently exist, and no improvements to the <br />outfall structures are proposed, flows draining to the outfalls will need to be metered to match the capacity of the <br />subject outfall. The site has been divided into two tributary areas sized in accordance with the 25-year storm <br />capacity of the outfall they flow to, with flows thereto attenuated by stormwater detention ponds within the two <br />drainage basins. <br />As required by the City of Everett drainage code, both basins will flow through Ecology -approved oil -water <br />separators and StormFilterTM water treatment facilities before discharging to a new manhole to be placed on the <br />existing storm drainage lines upstream of the existing outfalls. Flows from a portion of the south basin will flow <br />through a low impact development rain garden before entering the south basin collection system. No in -water <br />work in the Snohomish River is proposed as part of this project <br />8b. Will your project impact a waterbody or the area around a waterbody? of eM <br />❑ Yes X No <br />JARPA Revision 2015.1 Page 9 of 16 <br />