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i <br /> I 10/18/97 3 :8 :22 pm W&H Pacific, Inc. page 6 <br /> Lot 2F West Combined 47etpond / detention <br /> Detention Pond Sizing <br /> I _____________________________________________________________________ <br /> DETAIL BASIN SUMMARY <br /> I BASIN ID: POST6mth NAME: POS'?' DEVELOPED 6 Month Vol <br /> SPTJI-I METHODOLOGY ' <br /> TOTAL AREA. . . . . . . : 0.79 Acres BASEFLOWS : O . UO cfs <br /> � RAINFALL TYPE. . . . : TYPElA PERV IMP <br /> PRECIPITATION. . . . : 0.99 inches AREA. . : 0 .00 Acres 0 . 79 Acres <br /> TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 0.00 98. 00 <br /> I TC. . . . : 0 . 00 min 6 .30 min <br /> ABSTRACTION COEFF: 0 .20 <br /> PEAK RATE: 0 . 14 cfs VOL: 0 . 05 Ac-ft TIME: 480 min <br /> I TIME DESSGN TIME OESIG:7 TIM6 CESIG:: ::.._ :cS::➢S C:AE DESIG:i TIM6 DESICN <br /> RUNOFe RUNOFF RVhCFF kVt:.^.PF RVtJOFF RUNOFF <br /> (min) (cEe) (miN lcfe) lnin) :cfs _.. (ct�l ":n) ;c:�; !miN (cCe) <br /> I .""...'."'.".............................."'................................................"'.'.. <br /> 30 710 0.0770 630 0.0783 ?!0 0.02G0 ::.10 0.0190 I510 <br /> 70 J20 O.O1B5 620 0.0766 ?20 0.0362 :_20 0.0199 1530 <br /> I 30 370 0.0701 670 0.0�65 �30 0.0263 ::70 0.0189 1570 <br /> 40 340 0.0J11 6�0 0.0363 310 0.0361 1i40 0.0191 1540 <br /> 50 350 0.0710 fi50 0.0766 950 0.0267 --50 0.0189 1550 <br /> 60 360 O.OJYB 660 0.0366 960 0.02G1 :360 O.O1B9 1560 <br /> 1 70 370 0.0723 670 0.0734 ?!0 0 0212 :270 0.0191 1570 <br /> BO 7B0 O.O116 6B0 0.029'1 :30 0.0158 ::.90 O.OIB9 1580 <br /> 90 ]90 0.0718 690 0.0794 . .. a.Oli2 -=30 O.O1B9 1590 <br /> I 100 i00 0.0331 700 0.0395 _.-, 0.01�19 _]JO 0.0191 1600 <br /> 110 0.0001 �10 0.0339 710 0.029: 1.0:51 :-30 0.0189 1630 <br /> 120 0.0008 730 0.0372 720 0.02°a .:�] O.OI51 _:2U O.OIB9 1G20 <br /> I 130 0.0070 �70 0.0515 '/70 0.0396 :LJO O.OIBI :130 0.0197 1630 <br /> 160 0.00I) �00 0.0726 740 O.OI95 :_i0 0.0:31 :i70 0.0355 1640 <br /> � 150 0.00�6 �50 0.0764 750 0.0]95 :J50 0.0275 _i50 0 A153 1650 <br /> 160 0.0057 �60 0.30�5 ]60 0.039] ::fi0 0.0226 _:00 0.0151 1G60 <br /> . 170 0.0068 �70 0.1762 ]70 0.0796 1v�0 0.0.26 :i]0 0.0152 1670 <br /> � 100 0.0078 180 0.1�]5 ]BO 0.0396 1=80 J.0226 :i30 0.0153 1600 <br /> 190 0.0086 190 0.3081 ]90 0.0264 .::0 :..J-:O _l30 0.0:57 1690 <br /> 700 0.0095 500 0.0681 B00 0.0329 .::0 0.0:90 -;�0 O.o:57 1"!00 <br /> 210 0.0103 510 0.0638 B10 0.032i ___. J.C:3B _::0 O.U:S] 1030 <br /> 320 0.0110 520 0.06�1 B20 0.02]7 ..-. J.C?50 =;30 0.0151 1'J]0 <br /> 3J0 0.O11B 570 0.0577 B70 0.0223 .:�J 0.0:95 :.JO 0.0153 1770 <br /> 240 C.O1]4 5�0 0.0571 B10 0.073] ::i0 0.0129 ::{0 0.0153 17�0 <br /> 250 (1.0139 550 0.0193 P50 0.0779 1:50 O.OIB3 :.50 0.008i 1]SU <br /> 260 0.0155 560 0.0105 B60 0.0359 1160 O.O1BA :460 0.0010 1760 <br /> I 270 0.0161 570 O.O196 870 0.0761 11']0 O.O1B8 ::]0 0.0001 1]70 <br /> ]BO 0.01'/D 580 O.Ol9B BBO 0.0760 1180 O.OIYO ::80 1780 <br /> 490 0.0376 590 0.0797 890 0.0762 1-90 0.0189 1:90 1790 <br /> I300 0.0181 600 0.079] 900 0.0262 1:00 0.0188 :°JO 1800 <br /> I <br />