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EVERETT 8400 <br /> Location: 11 1 1 80TH ST SW <br /> Reveiwer: KB <br /> Drainage Basin MERRII AND RING CR <br /> Pre-Development Design;iorm (yr): 10 <br /> Post-Development Design Storm (yr): 25 <br /> Area of Site (ac): 5.10 <br /> Existing Slope of Site ( ): 10.00 <br /> Existing Ground Cover <br /> Woods/Forest (ac): 5.10 0.26500 1.35150 <br /> Lawns/Landscaping (3c): 0.00 0.51000 N/A <br /> Earth/Gravel (ac): 0.00 0.96000 N/A <br /> Impervious (ac): 0.00 1.45000 N/A <br /> Total Site Runoff: 1.35 <br /> Existing Run-off (cfs/acl 0.26500 <br /> 1 i cf1 1ofJ. <br /> Proposed Ground Cover <br /> Lawns/Landscaping (ac): 5.10 <br /> Farth/Gravel (ac): 0.00 <br /> Impervious (ac): 0.00 <br /> ---------------- ---------------- ---------------- -------------- --------------- ---------------- --------------- <br /> Detention Storage Required <br /> Lawns/Landscaping (cf/ac): 398.25 <br /> Earth/Gravel (cf/ac): 1863.20 <br /> Impervious (cf/ac): 2587.38 <br /> ---------- ---- --------------- --------------- --------------- ---------------- ---------------- ---------------- <br /> Total Detention Storage Required <br /> Lawns/Landscaping (cf): 2031.08 <br /> Earth/Gravel (cf): N/A <br /> Impervious (cf): N/A <br /> Tolal Storage Required (cf): <br /> 2031.08 <br /> ---------------- ---------------- ---------------- ---------------- ---------------- ----- ---------- ------------ <br />