PERMFILE58809

• Permit No: C1981012
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 19 POSTMINING DRAINAGE CALCULATIONS 10/23/97
• Media Type: D
• Archive: No

Civil Software Design -- SEDCAD+ Version 3.1
C'apyright (C) 1987-1992. Pamela J. Schwab. All rights reserved.
Company Name:
Filename: C':\SEDCAD3\N
Date:
NEW ELK POST
Stone: 2.90 inches, 10
Hydrograph
GREYSTONE DEVELOPMENT CONSULTANTS •
;LK\C5POST User: CWB
10-14-1997 Time: 17:00:31
MINING TOPOGRAPHY ABOVE C5: D5
year-24 hour, SCS Type II
Convolution Interval: 0.1 hr
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SUBWATERSHED/STRUCTURE INPUT/OUTPUT TABLE
-Hydrology-
Base- Runoff Peak
JBS SWS Area CN UHS Tc K X Flow Volume Discharge
(ac) (hrs) (hrs) (cfs) (ac-ft) (cfs)
111 1 17.49 72 M 0.091 0.029 0.425 0.0 1.09 14.61
111 2 39.40 72 M 0.114 0.027 0.428 0.0 2.46 32.91
111 3 4.93 72 M 0.049 0.000 0.000 0.0 0.31 4.12
111 4 15.59 72 M 0.184 0.000 0.000 0.0 0.97 9.16
111 5 0.00 0 M 0.000 0.000 0.000 0.0 0.00 0.00
111 6 0.00 0 M 0.000 0.000 0.000 0.0 0.00 0.00
Type: Null Label: UNDISTURBED
111 Structure 77.42 4.83
111 Total. IN/OUT 77.42 4.83 59.2
112 1 0.73 74 S 0.040 0.000 0.000 0.0 0.05 0.68
112 2 3.08 91 M 0.066 0.000 0.000 0.0 0.51 5.85
112 3 0.00 0 M 0.000 0.000 0.000 0.0 0.00 0.00
112 4 0.00 0 M 0.000 0.000 0.000 0.0 0.00 0.00
TyF~e: Riprap Channel Label: TRACK & RECLAIMED
112 Structure 3.81 5.39
112 Total. IN/OUT 81.23 5.39 65.80
ill to ].7.2 Routinci 0.012 0.405
121 1 2.97 91 M 0.059 0.098 0.284 0.0 0.49 5.65
121 2 0.77 74 M 0.058 0.000 0.000 0.0 0.05 0.72
121 3 4.09 91 M 0.098 0.000 0.000 0.0 0.67 7.77
121 4 0.00 0 M 0.000 0.000 0.000 0.0 0.00 0.00
121 5 0.00 0 M 0.000 0.000 0.000 0.0 0.00 0.00
Type: Nul l Label: UNDIS, TRACK, RECLM
121 Structure 7.83 1.22
121
---- Total IN/OUT
------------------ 7.83
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-------
------
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------- 1.22
-------- 13.93
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