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S iORh1'�VATLR SITG PLAN <br />;\UGUSTA 1VOODS CONDOMINIU,\4S <br />Thc cxisting 2 year runoff rate is: <br />Rcturn Pcriod Peak Ratc cfs <br />2 Ycar 0.36 <br />SLDIMENT TRAP SIZING: <br />2 yr Discliargc (Q�) = 0.36 cfs <br />Settling Velocity (Vseo) = 0.00096 f'ps <br />Required Surfacc Ama (SA) = 1.2*Q� /Vseo= 450 sY <br />Surfacc Arca Provided = 430 sf <br />Setding Depth (SD) = 2 feet <br />Requircd Settling Volume =(SD)*{SA) = 900 cf <br />Setding Volume Provided = 960 ef <br />SOL'TFI TRAP: <br />bfAY 20, 2003 <br />P.AGL ll <br />RUNOFF CP.LCULATION: <br />This basin h�s a tributary area of 1.33 ucres. The ground cover has been taken as <br />tilled carth. <br />Land Usc CN Area (ac� <br />Qarc Earth 94 1.33 <br />Thc cxisting 2 ycar runoff ratc is: <br />Retum Period Peak Rate(cfs) <br />2 Ycar 0.32 <br />S[DIMEN"I' TRr\P SIZING: <br />2 yr Discharge (Qz) = 0.32 cfs <br />Settling Vclocity (Vseo) = 0.00096 fps <br />Rcyuired Surface Area (SA) = 1.2*Q�Nse�= 400 sf <br />Surfacc Area Providcd = 4S0 sf <br />Sctding Depth (SD) = Z feet <br />Rcquircd Scttling Volmnc =(SD)*(SA) = 300 cf <br />Setding Volume Provided = 960 cf <br />\Vhcn the sitc is stabilizcd this scJimcntation trap wili be cleaned of sediment and <br />rcconfigured to serve as an open �+�ct pond tor the site. <br />13�4P G3.40, Temporary Sediment Pond: <br />Scdiment punds are not proposed R>r this sitc. <br />� <br />i ��.o-��sc.�C�.,�3�+�,,�zi��vcuess��eP'�,�ol.mrocc��,ema�55�o.-oneoCDWH/srm <br />