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II <br /> Western Washington Hydrology Model <br /> I PROI7ECT <br /> REPORT <br /> Project Name: WaterQuality <br /> II Site Address: 2909 Seaway Blvd <br /> City Everett <br /> Report Date : 11/24/2009 <br /> Gage Everett <br /> I <br /> Data Start : 1948/10/01 <br /> Data End : 1997/09/30 <br /> Precip Scale: 0.80 <br /> WWHM3 Version: <br /> 1 <br /> IIPREDEVELOPED LAND USE <br /> Name Basin 1 <br /> Bypass: No <br /> 1 GroundWater: No <br /> Pervious Land Use Acres <br /> II C, Forest, Steep 2.83 <br /> C, Pasture, Flat .92 <br /> IIImpervious Land Use Acres <br /> 1 Element Flows To: <br /> Surface Interflow Groundwater <br /> II Name Basin 1 <br /> Bypass: No <br /> IGroundWater: No <br /> Pervious Land Use Acres <br /> II C, Lawn, Flat .22 <br /> C, Forest, Steep 2.36 <br /> Impervious Land Use Acres <br /> II ROADS FLAT 0.75 <br /> ROOF TOPS FLAT 0.42 <br /> II <br /> Element Flows To: <br /> IISurface Interflow Groundwater <br /> IIMITIGATED LAND USE <br /> 11 ANALYSIS RESULTS <br /> Flow Frequency Return Periods for Predeveloped. POC #1 <br /> Return Period Flow(cfs) <br /> I <br /> 2 year 0.058752 <br /> 5 year 0.090856 <br />