PERMFILE64267

• Permit No: C1981024
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 6 SEDIMENT POND REMOVAL INFORMATION
• Media Type: D
• Archive: No

Civil Software Design -- SEDCAD+ Version 3
Copyright (C) 1987-1990. Pamela J. Schwab. All rights reserved.
• Company Name: Greystone Development Consultants
Filename: D:\SEDCAD3\CCMCPST3 User: CAB
Date: 09-17-1991 Time: 03:38:14
POST MINING WATERSHED 2 (POND PARTICAL DIST.)
Storm: 3.00 inches, 10 year-24 hour, SCS Type II
Hydrograph Convolution Interval: 0.1 hr
SUBWATERSHED/STRUCTURE INPUT/OUTPUT TABLE
-Hydrology-
Base- Runoff Peak
_BS SWS Area CN UHS Tc K X Flow Volume Discharge
(ac) (hrs) (hrs) (cfs) (ac-ft) (cfs)

11 1 13.04 69 M 0.200 0.000 0.000 0.0 0.73 6.37
111 2 9.62 69 M 0.098 0.000 0.000 0.0 0.54 7.18
Type: Null Label: RECLAIMED
11 Structure
------------ 22.66
-----------------
--------
------------
------ 1.26
---------
---------
----
111 --
Total IN/OUT 22.66 1.26 12.36

SUBWATERSHED/STRUCTURE INPUT/OUTPUT TABLE
-Sedimentology-
SED: Sediment
SCp: Peak Sediment Concentration -
SSp: Peak Settleable Concentration
24VW: Volume Weighted Average Settleable Concentration - Peak 24 hours
24AA: Arithmetic Average Settleable Concentration - Peak 24 hours
PS
JBS SWS K L S CP Tt # SED SCp SSp 24VW 24AA
(ft) (~) (hrs) (tons) (mg/1) (ml/1) (ml/1) (ml/1)
111 1 0.24 387.5 3.0 0.028 0.000 2 0.8
111 2 0.24 225.0 9.6 0.140 0.000 2 13.2
Type: Null Label: RECLAIMED
111 Structure 14.0
111 Total IN/OUT 14.0 23337 19.57 6.79 1.85
eevo. .aceee.e.c=~ .-~ =-==--cv----coe =oc===e~=-v - ~=o-~~-