PERMFILE107487

• Permit No: C1996084
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: Figure Crooked
• Section_Exhibit Name: EXHIBIT 15 MINE AREA P3 SEDIMENT CONTROL POND 3-1
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
Copyright 1g98 Pamela J Schwab
Cinl Software Design
1
f '
l.~
Structure #3 (Pond)
Pond
Pond Inputs:
Structure Detai/:
Initial Pool Elev: 6,665.00
Initial Pool: 5.63 ac-k
'Sediment Storage: 2.27 at-ft
Dead Space: 20.00
'Sediment capacity based on Average Annual R of70.0 for 2 year(s)
Emergency Spillway
Spillway Elev Crest Length Lek Right Bottom
(k) Sideslope Sideslope Width (ft)
6,665.00 22.00 2.50:1 25.00:1 10.00 ~
Pond Results:
•
~~I~~
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
•

Elevatlon Area

(ac) Capacity

(ac-k) Discharge

(~) ~v'ater
Time
(hrs)
6,655.79 0.470 0.000 0.000 Top of Sed. Storage
6,656.00 0.475 0.098 0.000
6,656.50 0.490 0.340 0.000
6,657.00 0.504 0.588 0.000
6,657.50 0.519 0.844 0.000
6,658.00 0.534 1.107 0.000
6,656.50 0.549 1.378 0.000
6,659.00 0.565 1.656 0.000
6,659.50 0.580 1.943 0.000
6,660.00 0.596 2.237 0.000
6,660.50 0.612 2.539 0.000
6,661.00 0.628 2.849 0.000
Filename: Pontl 3-1 eme..d0.yr.srA

Peak Elevation: 6,666.01
H'graph Detention Time: 1.53 hrs
Pond Model: CSTRS
Dewater Tme: 1.22 days
Trap Effciency: 9699-%
Printed 04-16-2001