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J <br />crn oF �rr �c �cs <br />DRAINAGE CALCU.ATIW SZBMISSION F�tM <br />Date jl-! 3 - �O <br />Pmject Name: 19GL�1��lJDD/.� t�JNW �79�70�7 �2 <br />Project Location• '�6300 �v.E,�ii.��•v LdAX <br />' - • : ♦ Il�i,. �I .�s <br />Drainage Basin: i�lhEO-y1 G��GC N�. ! <br />Pre-Development De"sign Storm (yr): /D �Z <br />Post-Development Oesign Stnzm (yr): �� y/Z , <br />Area of Site (ac): �.q� ,01�2(�T7 Ji•� l�jyU1� <br />Existing Slope of Site (%): �,p� [ �/,� � <br />Existing Ground Cover <br />Woods/Forest (ac): -Q' <br />Lawns/Landscaping (ac : �,6-' -6' c�13i =0.20 <br />Earth/Gravel (ac): , 6}� =8,� 3 <br />Impervious cac): —�Jc ,r , � � -p,t(� <br />�• Y <br />Existin� Run-0ff (cfs): �yq��•Q� =p.�z e1cSi 9�5 <br />Proposed Grwnd Cover <br />Lawns/Landsr�ping (ac): Q. Sz � <br />Earth/Gravel (ac): Q.p�� <br />Impervious (ac): B, 3,� <br />Detention Storage Required (cf/ac) <br />Lawns/Landscaping (cf/ac): . <br />Earth/Gravel (cf/ac): <br />Impervious (cf/ac): � <br />' Total Detention Storage Required <br />. Lawns/Landscapinr (cf): <br />' Earth/Gravel (cf): <br />Impervious (cf): 3 �6 � , � � �F <br />Total Storage Requued c: y�3 eF <br />(y�j �f�(�2. �) _ �iz �z 37 � �o,�,—w,d�T,o,� <br />f,'��ov, •rT, <br />.i/'i <br />/Z-Z/'90 <br />