2008-09-15_REPORT - C1981010

• Permit No: C1981010
• IBM Index Class Name: Report
• Doc Date: 9/15/2008
• Doc Name: Horse Pond Expansion Certification
• From: Trapper Mining Inc
• To: DRMS
• Permit Index Doc Type: Waste Pile/Fill Report
• Email Name: JDM
• Media Type: D
• Archive: No

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Siu SAS

Soil K

L (ft)

S(%)

C

P

PS #
Sediment
(tons) Peak
Sediment
Conc.
(m9/1) Peak
Settleable
Conc
(ml/1)
24VW
(MI/1)
1 3,538.9 510,157 231.68 124.13
#3 1 0.250 427.00 35.13 0.0110 1.0000 1 0.0 1 0.00 0.00
2 0.140 295.00 37.29 0.2600 0.6000 1 1.3 128,720 61.38 30.96
3 0.140 286.00 20.98 1.0000 1.0000 1 6.5 340,072 162.17 94.55
4 0.140 117.00 25.64 1.0000 1.0000 1 29.9 293,603 140.01 71.80
5 0.250 403.00 19.85 0.0110 1.0000 1 0.0 1 0.00 0.00
6 0.140 427.00 35.13 1.0000 1.0000 1 78.8 707,471 337.38 183.99
E 3,655.4 578,366 263.07 124.11
Subwatershed Time of Concentration Details:
Stru SWS Land Flow Condition Slope (%) Vert. Dist.
(ft) Horiz. Dist.
(ft) Velocity
(fps) Time (hrs)
# #
#1 2 8. Large gullies, diversions, and low 14.77 238.00 1,611.00 11.530 0.038
flowing streams
#1 2 Time of Concentration: 0.038
#2 1 B. Large gullies, diversions, and low 14.88 253.00 1,700.00 11.570 0.040
flowing streams
8. Large gullies, diversions, and low 7.04 57.00 810.00 7.950 0.028
flowing streams
#2 1 Time of Concentration: 0.068
#2 2 1. Forest with heavy ground litter 20.55 323.00 1,572.00 1.140 0.383
#2 2 Time of Concentration: 0.383
#2 3 1. Forest with heavy ground litter 12.20 35.00 287.00 0.880 0.090
8. Large gullies, diversions, and low 41.39 226.00 546.00 19.300 0.007
flowing streams
#2 3 Time of Concentration: 0.126
#2 4 8. Large gullies, diversions, and low 27.85 225.00 808.00 15.830 0.014
flowing streams
#2 4 Time of Concentration: 0.014
#2 5 8. Large gullies, diversions, and low 11.04 195.00 1,766.00 9.960 0.049
flowing streams
#2 5 Time of Concentration: 0.049
#2 6 8. Large gullies, diversions, and low 17.57 65.00 370.00 12.570 0.008
flowing streams
#2 6 Time of Concentration: 0.008
# 7 8. Large gullies, diversions, and low 17.57 65.00 370.00 12.570 0.008
2 flowing streams
#2 7 Time of Concentration: 0.008
8. Large gullies, diversions, and low 98
20 60
00 286.00 13.740 0.005
#2 8 flowing streams . .
#2 8 Time of Concentration: 0.005
Filename: Horse Pond Expansion - As-built, 10 year, 24 hour event.sc4 Printed 09-12-2008