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SHEET <br /> PIPER P L /� C E Drawn G. t�ermnrt <br /> Date VF <br /> /�� scale one <br /> P.O. Box 816 MODESTO,CALIFORNIA 95353STORM QRAINAG[r I.ALC$. W(209)526-4214 Job No. -731 DIE <br /> DRAINAGE OF EX151ING DRIVES ( CocNRANE Lor 3, Rose Lo-r 3 <br /> PROPOSEO SECTION 5ECT10N To PROVIDE STORAriE FOR RUNIOFF GENE�iATED, <br /> z'9VARleg <br /> 2' <br /> -••• SIO�E <br /> .I• - 33 .2 <br /> � I v.�o�•o•pp•6 `•� `e �e � e'°' -'•::' '�e:. <br /> =1u - .=l11 -111=..,I <br /> 111_ . .-Ill -III-Iti =SII-III-111 -111-lll_:Ilt-:li =R. <br /> RUNOFF COEFFICIENT <br /> 5UR1=aGE RAKI(,EyESIGN uGli REFERENCE <br /> (2F�AVEL 0.15 - 0.a0 0.3o CONCRETE PIPE HAND600K <br /> SETBACK bPE�4 LAND) 0.10 5. J. Co. STORM VE:SI&W MANUAL. <br /> EMPTY DITGI{ �OPU1 LAND) 0.20 STORKI DESIGI.I MANUAL. <br /> FULL IDI-TCA (IMPERVI005) 1•b0 <br /> Q,VERA44E AS DITC-I.1 riLL5 D•(oo <br /> 4(o.7-0) i- It (0.(-0) + 10 (0.30) <br /> WE1GFlTEp G = 25 = O, 410 <br /> STORAGE VOLUME. <br /> BASIG STORAGE VOLUME V = CAR <br /> 0.410 ( 25 G{ )(0.20 �4) <br /> 2.0s !41/P <br /> DESIGN sTbRAGE VOL.OME 2Y = )-(2.08) = <br /> '5TD9AGL PROVIDED 2 ( zx 5.5 x 0.83) = 4--)8> <br /> OK <br />