PERMFILE135209

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 9/2/2004
• Doc Name: Attachment 1 to 9
• Section_Exhibit Name: Exhibit 7 West Pit Pond - 008A
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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16
Subwatershed Hydro%gy Detai/;

Stru
#
SWS
#
SWS Area
(ac) Time of
Conc

(ham)
Musk K
(hrs)
Musk X
Curve
Number
UHS Peak
Discharge

(~) Runoff
Volume

(ec-ft)
#1 1 500.000 0.200 0.200 0.000 70.000 S 21.42 7.084
500.000 19.00 7.084
#2 1 96.090 0.461 0.481 0.303 75.000 M 10.47 2.303
596.090 9.65 9.387
#3 1 62.250 0.167 0.167 0.385 55.000 M 0.04 0.017
2 47.760 0.061 0.061 0.426 55.000 M 0.04 0.013
706.100 9.65 9.416
#4 1 29.750 0.094 0.094 0.414 51.000 M 0.00 0.000
735.850 9.65 9.416
Subwatershed Sedimento%gy Detai/:

Stru
#
SWS
#

Soil K

L (ft)

S (%)

C

P

PS #
Sediment
( )
tons Peak
Sediment
Conc.

(mg/p Peak
Settleable
Conc

(ml/1)
24VW
(ml/I)
#1 1 0.280 1,000.00 0.01 0.0010 1.0000 1 0.0 7 0.00 0.00
0.0 7 0.00 0.00
#2 1 0.280 1,550.00 7.50 0.5100 0.3800 1 109.7 76,326 18.47 10.40
9.7 6,951 0.00 0.00
#3 1 0.280 1,337.50 21.80 0.0100 0.4100 1 0.0 2,244 1.01 0.83
2 0.280 850.00 16.10 0.0200 0.4300 1 0.0 2,304 1.13 0.93
9.8 6,949 0.02 0.01
#4 1 0.260 975.00 23.80 0.0400 0.6400 1 0.0 1 0.00 0.00
9.8 6,929 0.00 0.00
Subwatershed Time of Concentration Details;

S~u S#WS land Flow Condition Slope (%) Ve (ft) ist. Hori(Zft) ist. V(fPdty Time (hrs)
#2 I 3. Short grass pasture 3.48 80.00 2,300.00 1.490 0.428
6. Grassed waterway 12.00 120.00 1,000.00 5.190 0.053
#2 1 Time of Concentration: 0.481
#3 1 6. Grassed waterway 18.57 260.00 1,400.00 6.460 0.060
Flfename: Wes1P11-t Oyr.sc4 Printed 07-16-2002