Laserfiche WebLink
u <br />Olt 3k= LVtiii eZ�tIIh air- 4 SF 06 j.d.S I ■O. corSTOLK7 OHS SITE PREPARATION & DRAINAGE REV. 1 <br />HALT LASS crTT. UTAH STANDARD FORM <br />RUNOFF & SEDIMENT CALCULATIONS 9/80 <br />SHT. fie OF 12 <br />DETERMINATION OF SEDIMENT VOLUME, SETTLING VOLUME <br />AND TOTAL STORAGE VOLUME OF SEDIMENTATION PONDS <br />PROJECT h1tTE¢.1 113c-L-, Dcccaa0o /A,tir JOB NO. UC. 4/_p _ <br />SEDIr %0 V091 D•Po g�sy_ PONDNO. <br />BY rns,�.�r�wl DATE I"1-131 CHECKED BY DATE <br />!CJ i6cd <br />2. SETTLING VOLUME (For 24 hour detention time) <br />Settling volume = volume of runoff from 10 year. 24-hour rainfall <br />10 year. 24 hour rainfall, inches 1..1A, <br />DETERMINATION OF WEIGHTED RUNOFF CURVE NUMBER FOR CONTRIBUTING '.VAT `s RSHED <br />1 <br />• <br />SOIL TYPE <br />HYDROLOGIC <br />GROUP <br />RCN <br />FAMC III <br />ACRES <br />RCN X ACRES <br />cf'iE�rTSe,L - R��N�.c (c.,r�t <br />E3 <br />?5.82 <br />3oc8.gFi <br />i„eQlcl,uvtl.jTS - �w -t:;t> <br />D <br />�,4 <br />i I <br />G�j <br />182.NS <br />Ce NT S PC- P QSr p <br />/ Z <br />K,jt¢So.J <br />89 <br />14 45 <br />12Q6 .12 <br />I <br />TOTALS <br />/ <br />55c}3,r)1 <br />WEIGHTED RCN. AMC II = (TOTAL RCN X ACRESI.TOTAL ACRES <br />M TniS area o,%cumes q , d�k_ or sW6le 1 4TU Ca -3D <br />Ureme are, PI�IO and to04r 24%.r r'1Aw�• 1 <br />0 o^c g r r S d I a eci <br />RUNOFF, INCHES W A. <br />RUNOFF, ACRE —FEET WAN <br />ADDITIONAL RUNOFF VOLUME CALCULATIONS <br />I SCS.TP-149 D.5 I <br />1 Contributing drainage area. acres X runoff, nches, 12 I <br />FRED. <br />24HR STM <br />RAINFALL <br />INCHES <br />RUNOFF <br />INCHES <br />RUNOFF <br />AC. FT. <br />