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Thomson Residence <br />Stormwater Site Plan Report <br />March 5, 2021 <br />Section III, Page 2 <br />1 <br />3s <br />MH <br />g <br />Figure III-1. Study area (Map Everett). <br />Task 3 — Field inspect the study area <br />From evaluating surrounding conditions, the site does not appear to take on any upstream <br />runoff. The project proposes to route roof runoff to a detention tank with a flow control <br />structure and outfall into the combined sewer along Thomson Ave. Since all runoff will directly <br />tie into the combined sewer, the offsite analysis will only extend to the area of proposed tie in <br />at the site frontage. <br />C 4CM, <br />ENGINEERING <br />250 4th Avenue South, Suite 200 <br />Edmonds, WA 98020 <br />ph.425.778.8500 1 f.425.778.5536 <br />www.cgengineering.com <br />