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<br />~fo~.~gACOfla~vleZilAh 3RC. 4sF.oe <br />^^at~un^.car^rwcro^^ SITE PREPARATION & DRAINAGE REV. ~ <br />^Ali U^^ CITE, Yi^M STANDARD FORM <br />RUNOFF & SEDIMENT CALCULATIONS 9B~ <br />SHT. 2a OF 12 <br />DETEniriiivA T ION OF SEDIMENT VOLUME, SETTLING VOLUME <br />AND TOTAL STORAGE VOLUME OF SEDIMENTATION PONDS <br />PROJECT \VESTEfZV FUELS ~f ESEwAOO tnwf JOB NO. UG- 3k(o _ <br />REFUSE a2EA 'I Z _ POND NO. _ <br />BY O.rA.W. DATE ~1-Z'7.bo __ CHECXEDBY DATE _ <br />2. SETTLING VOLUME IFor 24hour detention umel <br />Settling volume =volume of runoff from 10~year, 24~hour rainfall <br />10 year. 24~hour rainfall, inches I - <br />DETERMINATION OF WEIGHTED RUNOFF CURVE NUMBER FOR CONTRIBUTING WATERSHED <br />• <br /> HYDROLOGIC RCN <br />SOIL TYPE ACRES RCN X ACRES <br /> GROUP :,AMC ~It <br />Jr~lr,r,,.t,<~ <br /> <br />7urlt F~~c Sc.,•.1 C "19 a.3 ~~~, l <br />{ZZfusC- I~eclx,.-ted-l3a.-~. G C~2 Il.'~ li`I-18.~ <br />Turlt F~..~ St,,,~ <br />tJo.,-lox,c F;II S+uraa ~, D 8~ ?.Co 39,(0 <br />I-laJ4 Ro9.Js p ~'jj 3_-/ 329 <br />3 <br />Cnr l:Jtl 5vr~r-cc . <br />~u..d P.r<r.. <br />C <br />`12 <br />I <br />7 <br />IS~09- <br />7t,.-I< F~:.r 5~...t . <br />TOTALS 30.G 2, 55'~ - ~ <br />WEIGHTED RCN, AMC II = ITOTAL RCN X ACRESIliOTAL ACRES Pj3.S <br /> <br />RUNOFF, INCHES O.56 _ (SCS~TP~14g p.5 1 <br />RUNOFF, ACRE-FEET I'~ 8 I Contributing drainage area. acres X runoff, ~nches!12 1 <br />ADDITIONAL RUNOFF VOLUME CALCULATIONS <br /> <br />FREC. <br />24HR STM RAINFALL <br />INCHES RUNOFF <br />INCHES RUNOFF <br />AC. FT. <br />~5 2.2_ O.~/ 2.30 <br /> <br /> <br /> <br /> <br /> <br />