Laserfiche WebLink
<br />!•1 <br />goclD, Jgacon a'~avieZitah inc. asF~oe <br />~~aiM~e~~-coM~r~uerows ~ SITE PREPARATION & DRAINAGE REV. 1 <br />~wlT urn trtr, urwH STANDARD FORM <br />RUNOFF & SEDIMENT CALCULATIONS 9/80 <br />SHT. 2 OF 12 <br />DETERMINATION OF SEDIMENT VOLUME, SETTLING VOLUME <br />AND TOTAL STORAGE VOLUME OF SEDIMENTATION PONDS <br />PROJECT \VESiEKfJ FUELS pES[-_KApO !At~E JOBN0. IJC ~~r:. _ <br />RE USE A2EA ~ 4 __ ____ _ POND NO. I~•'-`>-__ .- <br />BY _i?_M.tV._ DATE r~' 2 ?~ g~ ___ CHECKED BY -___ DATE _ <br />2. SETTLING VOLUME IFor 24~hour detention time) <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 NUfvIOER FOR CONTRIBUTING WATERSHED <br />^r~ <br />~~ <br /> <br />SOIL TYPE HYDROLOGIC <br /> <br />GROUP RCN <br />i <br />(AfvIC III <br />ACRES <br />RCN X ACRES <br />L ntl~a yr •rA <br />IAokars.n S~onr Gs. <br />17 ~ <br />$¢ <br />,j.,o <br />'33.0 <br />l~o~ers... 54er,. CI, ~ $(0 2-~,O ~ 2~Z2~,4 <br />yx~l k•r.d <br />Cv=gel s„r{ace <br />~ <br />~`~ <br />U.5 <br />44.5 <br />Vie.-. ul Ar.o- <br />I(~u.Jr rson ~~n.~ Clo <br />~ <br />~ ~ <br />I . 9 <br />11 4'.e <br /> <br />TOTALS 32.3 2,7QjZ•~7 <br />WEIGHTED RCN, AMC II = (TOTAL RCN XACRES)/TOTAL ACRES g(o.2 <br /> <br />RUNOFF, INCHES <br />O.~ 2 <br />I.54 <br />I SCS~TP~149 p.5 ) <br />RUNOFF, ACRE-FEET <br />1 Contributing drainage area, acres X runoff, inches/12 I <br />ADDITIONAL Rl1NOFF VOI UMF CAI CI II ATIONS <br />~I- i <br />FREQ. <br />24HR STM RAINFALL <br />INCHES RUNOFF <br />INCHES RUNOFF <br />AC. FT. <br />ZS 2.2 .o Z.(.V <br /> <br /> <br /> <br /> <br /> <br />• <br />• <br />u <br />10-80 <br />