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i <br /> � �wYtONmO^Y�•D�iy�R�a1 NSBI <br /> �Il�r R�wl l <br /> � <br /> { �Ilk!D17�11��!l��'Nt <br /> 1 <br /> � Runoff generaoed(mm Fiuloe propertiea that enxr the Pond'A'dexndoa awcdme <br /> Iwcee�eoaaoed�Sum Flulae pluee 1 uid ph�e 2 dninage plana. Since d�wlydt is <br /> � only coocemed w�ith tde pafmrtunoe of the pond end aa wdth dro tleqwcy of the <br /> exiain`coeveyance ryaxrtn dirchaegini into che pood,it ia pasib�oo divide the <br /> Fluloe peoperty inW fau diadnct eubbeaina 77�e tubbuins ue�enenlly <br /> ( rep�esen�ed by the ato�m ptpe conveymcx rystems that convey iunoff oo t6e poed. <br /> i <br /> � Flulae Aiea4 ie a IugelY Pervioua uea that incindea the pond�rea. T6e nea of dk <br /> 1- pond is c�naidaed trt�pervious. 'Ibe tonl atea for Fluice Area4 wu djusled ia tf� <br /> nviaion to 13.8 acroa fmm 14.98�c�es. The ieasoe L to rrulCe the wnl Flnre <br /> jdninage uea much d�e area uxd in che orlgin�l7/t7/84 cort�puadoaa. <br /> �` B�aed on the ovenll aiae of d�e pond and the configuntion of the diic6�rge <br /> structwes, u ia andcipaoed thu the outflow hydrogr�phs 6om t6e pond will <br /> � experiena a g�eu deal of attenwdon. Under theae routieg coadidons,pealc nu�oPf <br /> ntes for each individu�l 6ydrograph do not play a signific�nt rok in tde th�pe of the <br /> � outflow hydro�aph. The wui volwne of runoff enoaing the detentioa pond <br /> deoennines the ahape of tl�e outflow hydro�aph. 7t�e followin�i�a de�cription of <br /> �� the four Flul�e dninage ereas. <br /> � Mq Descriplion <br /> Fluke Areal Roof Minage from offia building in pfuae 2 <br /> Tottl Area: 1.63 aaea <br /> � F7ulce Aroa2 Pulong�rea ivaoff�nd roof mnoff from p6aae 1 buildin�. <br /> ToW area: 15.32 acrea <br /> Imp Mta: 9.21 �ca+es <br /> Avg Pipe elope: 1.396 <br /> � F7�I�e Anea3 Parlring usa runoff u�d roof runoff 6om Phase 1 building <br /> Total A�ea: 14.43 aaes <br /> Imp Area: 10.48 ecres <br /> � Avg pipe slope: 2.396 <br /> F1uke Acea4 Puvious uea Mining into pond A <br /> � Tutal Area: 13.8�cres <br /> Pond A�ea: 4.06 ac�ea (�eated as impervious) <br /> � Supplement 2 Revited-P�ae 2 <br /> ( Engenian Sypemb Iac.■PO Box 301lS.Seutk N'A 98103�(206)7d4-S2S2 <br /> � <br /> I <br />