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• <br />Silver Lake Plaza <br />�m <br />�� <br />�-M <br />:m <br />WWHM2012 <br />PROJECT REPORT <br />Project Name: Silver Plaza <br />Site Name: Silver Plaza <br />Site Address: 10521 19th Ave SE <br />City : Everett <br />Report Date: 4/11/2018 <br />Gage : Everett <br />Data Start : 1948/10/01 <br />Data End : 2009/09/30 <br />Precip Scale: 1.00 <br />Version Date: 2018/03/02 (15-Minute Time Step Analysis Used) <br />Version : 4.2.14 <br />Low Flow Threshold for POC 1 : 50 Percent of the 2 Year <br />High Flow Threshold for POC 1: 50 year <br />PREDEVELOPED LAND USE <br />Name : Undeveloped <br />Pervious Land Use <br />C, Forest, Mod <br />C, Lawn, Mod <br />Pervious Total <br />Impervious Land Use <br />Impervious Total <br />Basin Total <br />Element Flows To: <br />Surface <br />MITIGATED LAND USE <br />Name : Developed <br />Pervious Land Use <br />C, Pasture, Flat <br />C, Lawn, Mod <br />Pervious Total <br />Impervious Land Use <br />ROOF TOPS FLAT <br />SIDEWALKS FLAT <br />acre <br />.939 <br />.16 <= Upstream Runoff Entering Site <br />1.099 <br />acre <br />0 <br />1.099 <br />Interflow <br />Groundwater <br />acre <br />.161 <= Amended Site Pervious <br />.161 <= Upstream Runoff Entering Site <br />0.322 <br />acre <br />0.213 <br />0.006 <br />WESTERN ENGINEERS, INC. 20 <br />PROJECT: 15-1415-A <br />