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CITY OF EVERETT PUBLIC WORKS <br />DRAINAGE CALCULATION SUBMISSION FORM <br />Date AA 0, 21 % <br />Pri ject Name: EVEREIT STtE,L WA:0.EMOUSt MON, <br />Project Location: 31Z(p H ALL STREET <br />Submitted By': VEkme- L LINDBERCm P.E. <br />Drainage Basin: C.OMBIkOD SF-we1L Ow -molt "C>4d%1VW1A <br />Pre -Development Design Storm (yr): 10 YM <br />Post -Development Design Storm (yr): 10 V►' <br />Area of Site (ac): e. ( ac,_ <br />Existing Slope of Site (%): last +k" Z.A91t <br />Existing Ground Cover <br />Woods/Forest (ac): <br />Lawns/Landscaping (ac): <br />Farth/Gravel (ac): g s <br />Impervious (ac): a,(v <br />Existing Run -Off (cfs): 0,913 cG s � <br />per acre <br />Proposed Ground Cover <br />Lawns/Landscaping (ac): .2 ac , <br />Earth/Gravel (ac): 4.72 trc <br />Impervious (ac): 3 ,l8 <br />Detention Storage Required (cf/ac) <br />Lawns/Landscaping (cf/ac): NZ <br />Earth/Gravel (cf/ac): (d <br />Impervious (cf/ac): <br />Total Detention Storage Required <br />Lawns/Landscaping (cf): <br />Earth/Gravel (cf): <br />Impervious (cf): <br />Total Storage Required c Now e , <br />