2010-12-17_REVISION - C1981019 ‎(122)‎

• Permit No: C1981019
• IBM Index Class Name: REVISION
• Doc Date: 12/17/2010
• Doc Name: Exhibit 7 Item 23 Erosion and Sedimentation Control Plan
• Type & Sequence: PR3
• Email Name: JRS
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
r-"WO 1000 -4nn7 D -.t. 1 CrMueh
38
Pond Inputs:
Initial Pool Elev: 6,719.50 ft
Initial Pool:
2.71 ac-ft
*Sediment Storage:
27.64 ac -ft
Dead Space:
20.00%
*sediment capacity based on Average Annual R of 19.0 for 1 year(s)
Emeraencv Saillwa
Pond Results:
Spillway Eiev Crest Length Left Right Bottom
(it) Sideslope Sideslope Width (ft)
6,737.00 20.00 2.00:1 2.00:1 50.00
Peak Elevation: 6,737.06 ft
�H'graph Detention Time:
13.80 hrs
Pond Model:
CSTRS
Dewater Time:
0.82 days
Trap Efficiency:
100.00
Dewater/ng time Is calculated from peak stage to lowest spillway
Elevation - Capacity - Discharge Table
•
Elevation
Area
(ac)
Capacity
(ac -ft)
Discharge Dewater
Time
(cis) (hrs)
6,718.56
2.839
0.000
0.000 Top of Sed. Storage
6,719.00
2.893
1.253
0.000
6,719.50
2.956
2.715
0.000
6,720.00
3.020
4.209
0.000
6,720.50
3.084
5.735
0.000
6,721.00
3.148
7.293
0.000
6,721.50
3.214
8.883
0.000
6,722.00
3.280
10.507
0.000
6,722.50
3.345
12.163
0.000
6,723.00
3.411
13.852
0.000
6,723.50
3.478
15.574
0.000
6,724.00
3.545
17.330
0.000
6,724.50
3.613
19.119
0.000
6,725.00
3.681
20.943
0.000
6,725.50
3.750
22.800
0.000
6,726.00
3.820
24.693
0.000
6,726.50
3.889
26.620
0.000
6,727.00
3.959
28.582
0.000
6,727.50
4.029
30.579
0.000
Fllename: 10 -year Collom_Pond (With Riser).sc4 Printed 01 -22 -2009
Exh. 7- 23A -42 Revision Date: 12/15/10
Revision No.: PR -03