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

SEDCAD 4 for Windows
r..-;a k+ loos 0-1. 1
12
Subwatershed Hydrology Detail

Stru
#
SWS
# SWS Area

(ac) Time of
Conc

(hrs) Musk K

(hrs)
Musk X Curve

Number
UHS Peak
Discharge

(cfs) Runoff
Volume

(ac-ft)
#1 1 140.311 0.126 0.000 0.000 87.000 F 60.22 5.463
2 17.817 0.038 0.000 0.000 87.000 F 9.40 0.694
158.128 63.91 6.156
#2 1 34.225 0.068 0.010 0.402 87.000 F 18.06 1.332
2 14.903 0.383 0.000 0.000 47.000 M 0.00 0.000
3 10.378 0.126 0.000 0.000 47.000 M 0.00 0.000
4 7.807 0.014 0.023 0.426 67.000 M 0.03 0.021
5 32.014 0.049 0.023 0.426 80.000 F 8.84 0.636
6 3.498 0.008 0.038 0.434 67.000 F 0.01 0.009
7 2.433 0.008 0.038 0.434 87.000 F 1.28 0.095
8 1.886 0.005 0.019 0.451 87.000 F 1.00 0.073
265.272 93.09 8.323
#3 1 4.732 0.015 0.000 0.000 47.000 M 0.00 0.000
2 0.906 0.004 0.015 0.449 80.000 F 0.25 0.018
3 0.667 0.005 0.019 0.451 87.000 F 0.35 0.026
4 3.447 0.023 0.000 0.000 87.000 F 1.82 0.134
5 7.372 0.339 0.000 0.000 47.000 M 0.00 0.000
6 3.059 0.006 0.015 0.045 87.000 F 1.61 0.119
285.455 97.13 8.620
Subwatershed Sedimentology Detail;

Stru SWS

# #

Soil K

L (ft)

S(%)

C

P

PS #
Sediment

(tons) Peak
Sediment

Conc.
(mg/1) Peak
Settleable

Conc
(ml/1)
24VW

(MI/1)
#1 1 0.140 361.00 16.62 1.0000 1.0000 1 2,029.6 456,263 199.50 107.67
2 0.140 366.00 24.59 1.0000 1.0000 1 356.9 587,170 280.01 149.68
Li 2,386.5 461,356 204.46 112.91
#2 1 0.140 275.00 40.00 1.0000 1.0000 1 1,025.1 786,388 375.01 206.98
2 0.250 485.00 17.73 0.0110 1.0000 1 0.0 1 0.00 0.00
3 0.250 418.00 33.49 0.0110 1.0000 1 0.0 1 0.00 0.00
4 0.140 605.00 31.14 0.1800 0.6000 1 0.4 15,650 7.46 6.37
5 0.140 329.00 30.40 0.2600 0.6000 1 60.2 154,418 73.64 31.98
6 0.140 329.00 30.40 1.0000 1.0000 1 1.0 157,334 75.03 67.94
7 0.140 329.00 30.40 1.0000 1.0000 1 45.1 552,803 263.62 140.34
8 0.140 286.00 20.98 1.0000 1.0000 1 20.9 362,401 172.82 89.50
Filename: Horse Pond Expansion - As-built, 10 year, 24 hour event.sc4 Printed 09-12-2008