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Lr� <br />�� <br />CITY OF EYERETT PUBLIC W�RKS <br />DRRINIIGE CALCULATION SUBMISSION FURM <br />D�te rf,��r� 2z, 1989 <br />PI'Oject NamE: 7-Unit Apar[ment for pon Borseth <br />Project Locatlon: �•��`• Corner South 2nd and Zillah (in Lowell) <br />Suhmitted By: Trepanier Engineering <br />Drainage Basin: All others <br />Pre-L'evelopment Design Storm (yr): 10 vear n� - <br />Post-Development Desian Storm (yr): �yP�r �� -_ <br />Area of Site (ac): 0 17 AC cK- — <br />Existing Slope of Site (%): 16% o<- _ <br />Existing Grcund Cover <br />Woods/Forest (ac): <br />Lawns/Landscaping iac : O.li <br />Earth/Gravel �ac): <br />Imperv�ous (ac): — <br />Existing Run-Off (cfsY: 0 Sfl cf� �C <br />��' <br />' Proposed Grcund Cover � <br />� Lawns/Lzndscapirg (ac): <br />� � Earth/Gravel iac): <br />I! � 4 17 <br />Impervious (ac): <br />� <br />il � 1-� Detention Storage Required �cf/ac) <br />Lawns/Landscaping (cf/ac): <br />Earth/Gravel (cf/ac): <br />Impervious (cf/ac): 1041 cf oK <br />Total Detention Storage Required <br />lawns/Landscaping (cf): <br />Earth/Gravel (cf): <br />Impervious (cf): 175 <br />Total Storage Requiretl c 175 less chan 250 therefore <br />. no storage required <br />/,,% ci%li��-s�rC /PE�U/�GF1J <br />������ <br />� -3-�9. <br />