PERMFILE46452

• Permit No: C1981019
• IBM Index Class Name: Permit File
• Doc Date: 9/2/2004
• Doc Name: Attachment 10 to 12
• Section_Exhibit Name: Exhibit 07 Gulch A Pond - 004A
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
10
Subwatershed Hydro%gy Detai/;

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

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

(ds) Runoff
Volume

(ac-ft)
#2 1 303.630 0.498 0.498 0.388 60.000 M 91.21 13.447
303.630 56.23 13.447
#1 1 90.850 0.362 0.362 0.353 56.000 M 20.76 2.878
2 33.960 0.269 0.269 0.392 56.000 M 9.11 1.076
F, 124.810 25.50 3.953
#3 1 106.380 0.192 0.192 0.403 55.000 M 29.38 3.065
2 115.090 0.486 0.486 0.350 54.000 M 16.54 3.000
649.910 138.51 23.465
#4 1 68.180 0.245 0.245 0.410 52.000 M 10.24 1.426
718.090 145.24 24.893
Subwatershed Sedimento%gy Detai/:

Stru
#
SWS
#
Soil K
L ft
()
S (%)
C
P
PS #
Sediment
( )
tons Peak
Sediment
Conc.

(mg/I) Peak
Settleable
Conc

(ml/I)
24VW
(ml/I)
#2 1 0.280 2,333.00 6.80 0.1100 0.3800 1 238.6 23,075 4.81 3.39
231.2 22,370 4.26 2.99
#1 1 0.280 1,425.00 13.60 0.0100 0.4100 1 11.4 5,193 1.18 0.82
2 0.280 562.50 18.70 0.0100 0.3800 1 3.2 4,164 1.14 0.76
14.4 4,723 1.08 0.76
#3 1 0.280 1,575.00 21.70 0.0100 0.4200 1 27.3 12,636 3.92 2.52
2 0.280 1,025.00 15.70 0.0200 0.4900 1 24.1 9,870 1.39 1.04
296.9 16,636 3.31 2.31
#4 1 0.280 800.00 26.00 0.0400 0.6300 1 i 48.0 42,886 10.36 7.33

~', i
'
344.9
17,598
3.61 _
2.60
Subwatershed Time of Concentration Detai/s;

Stru SWS Land Flow Condition Slope (%) Vert. Dist. Horiz. Dist. Velocity Time (hrs)
# # (ft) (ft) (fps)
#1 1 3. Short grass pasture 8.11 150.00 1,850.00 2.270 0.226
6. Grassed waterway 8.95 85.00 950.00 4.480 0.056
Filename: GulchA-FreeboardDesign.sc4
Printed OS-11-2002