PERMFILE121541

• Permit No: C1981018A
• IBM Index Class Name: Permit File
• Doc Date: 5/13/2002
• Doc Name: Sediment Control Design Calculations, old NPDES permit
• Section_Exhibit Name: Illustration 07 through 13
• Media Type: D
• Archive: Yes

•o•r••r••• THE uASN PROGRAM DETERN INES ~ YAiERSHEO STORK HYOROGa APH •sreea-rr•

••••• YA TERSHED CONDITIONS ••-••
AREA = 44,0 ACRES SLOPE = 23.40) i LENGiH = 1180.0 FT R-IN = 1.80 jNCHEl T7ME = 24.00 HAS
•sri• NYDROGRIPN PARAMETERS •••e•
CL =1.000 CI =1.OL0 D = .OSp [N = BY.500 DELTAT .20
IiP = 1 TP = ,ISONRS OPCiS = 221.8} CfS GRIN = 5.00 IN/HR
••••• UNIT HYDROGRAPN •••••
.]L YY,9) 169.94 221.9! 197 .VD 124.7} 7j.J9 36.83 17.6C 7,94
3.42 1.42 .57 .22 .09 ,O3 .01 .00 .00 .00
.DG .00 .]G .CC .00 .00 .00 .OC .Ov .07
.70 .OU .OD .CC .CG .^G .Ou .00
•rr•r••••• STORM HYD90GRAPM GENERATED FROM START OF RUNOFF rrr••••r••
1
TIME • 0.70 C.05 O.3C 0.15 0.20 0.25 0.30 0.35 0.40 O.YS
•r1•rr•r•r•••••••p•r•rr•••r••gr•r••p••r•••pr-•rrr-•••p ••r•••p •rr•r••••rq rrra•r•
.^0 • .73 .^V .~5 .06 .07 .09 .10 .17 .12 .IV
.SU • .IS .l7 .1~ .2J .2! .17 .31 .77 .52 .72
I.OG • ,92 1.IV 1.4d 1.89 2.29 3.CT 5.D7 1,90 17.86 14,IV
1,50 • 18,70 24.14 29.34 lI.BS 27,9d 20.76 14.11 9.51 6.80 5.37
2.00 • 4,67 tl,3i 4.19 V,jD 4.!16 Y,0} 3.99 7.95 3.9! 1.91
7.50 • 3.87 S.BS 1.811 3, 1d 3.74 3.70 7.66 3.64 1.60 3.55
3.00 • 3,51 3.49 3.44 3.39 3.76 3.33 3.76 3.77 7.19 3,16
3.5D • 3,11 ],~~ ..^.2 2.92 2.62 2.24 1.93 1.72 1.59 1.53
V,OL • j,49 1,40 1.V1 I.Y6 1.V5 I.VS 1.44 1,44 I.Y} 1.41
4,Su • 1,42 1.V2 1.41 1,41 1.41 I.4D 1.40 1.39 1,19 1.38
5.70 • 1. Sd 1.17 1.37 1.36 1.36 1.35 1.35 1. 1V l.34 l.ll
5.5J • 1,77 1. .'1 1.31 1.31 1.31 1.3U 1.30 1.29 1.29 1.28
6,7L o 1.27 1..'7 1.26 1.26 1.25 1.25 1.24 1.24 1.23 ].23
6.52 • 1.?: 1.2: 1.21 1.21 I.2D 1.19 1.19 1.18 1.18 1.17
7.^v • 1.1e ].It l.li 1.15 1.14 1.14 1.13 1.12 1.12 1.11
7, 5,i • l.ll I.IL 1.1L 1.09 1.09 1.DB 1.07 1.•77 l.06 1.05
8.'1L • I.CS 1. ~4 1."`~+ 1.03 1.73 1.'12 ].?1 1.01 1.00 I.OJ
B.SC • .99 .9d .9d .97 ,97 .96 .OS .95 .9V ,93
9,^~ • ,93 .9i .9; ,91 .9J .90 .89 .89 .88 .87
9.5v • .E+7 ct .'+: ,95 .84 ,94 .93 .82 .92 .B1
lF.. ~L o 'J .7v ,7B .7b .7T .77 .76 .75 .75
1f,. 50 • .74 .7; .73 .T2 .71 .71 .7G .70 .69 .68
ll.~u • ,bd .57 .bb ,66 .65 .6V ,6V .63 .62 .62
,,. t:~ r .SI .b. .tJ .59 .59 .5tl .S7 .57 .56 .SS