PERMFILE106498

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 6/6/2003
• Section_Exhibit Name: Exhibit 66 TOC and Mine Water Control Plan
• Media Type: D
• Archive: Yes

TABLE 44E
Ditch and Culvert Summary
10-Year 24-Hour Storm
Pond/
Diversion-- Ditch Number
~- - Discharge.
~ (cfs) ~ ~ Slope.
(%) ~ ~ Depth
`.(feet) Shape
;_~,-. .. ~- Culvert
~~ Discharge
' (cfs) Size
(inches) S
MB-1 DI-1 035 1.8 0.61 V C1-l 14.15 24 HDPE
Dl-IA 0.05 26.6 039 V" C]-IA 0.57 12
Dl-IB 0.02 26.6 0.37 V" C1-2 12.17 24 HDPE
D1-2 1.57 5.0 0.64 V" CI-2A 2.68 24 HDPE
1.57 12.5 0.59 V"
DI-3 6.63 2.0 0.64 3' Trap* C1-3 1.98 18 ADS
D]-3D 0.11 15.0 0.40 V* C1-4 8.09 30 half
D1-4 2.06 <5.0 0.71 V* C1-5 35.54 42
2.06 >5.0 0.63 V*
D1-5 2.68 4.0 0.77 V* C1-6 2.07 IZ
Dl-SA 1.24 12.0 0.65 V Cl-6A 0.76 12
D1-SAA 0.36 30.0 0.45 V* C1-6B 2.7 18
Dl-SBSouth <O.i 12.5 0.40 V* C1-7 0.02 12
D]-SB North 0.34 7.0 0.49 V* C1-8 0.74 18 ADS
D1-SC 0.74 2.0 0.63 V* Cl-9 0.76 12
Dl-6 East 3.84 1.6 0.71 2' Trap
D1-6 West 4.25 1.6 0.73 2' Trap
Dl-7 1.10 3.0 0.65 V*
Dl-7A 0.30 3.0 0.52 V*
D1-7B 0.76 1.0 0.77 V
MB-3 D3-I 1.54 2.0 0.80 V C3-I 5.12 18
D3-lA 3.58 3.0 0.93 V* C3-IA 3.58 15
D3-2 2.09 6.0 0.69 V* C3-3 0.23 12
D3-2A 0.91 6.0 0.59 V C3-4 OSO 12
D3-2B 1.80 2.0 0.83 V
D3-3 0.80 2.0 0.69 V
D3-4 0.23 ]0.0 0.48 V
D3-4A 0.50 6.0 0.57 V
D3-4B 0.50 2.0 0.45 PTrap*
MB-5 DS-1 5.36 1.5 1.20 V CS-I negligible 12
DS-2 3.98 1.5 1.10 V
SG-1 DSG-]*** li.8 4.0 0.78 2'Trap CSG-1 10.61 30
DSG-2*** 5.52 13.0 0.52 2' Trap°
DSLY-13*** 0.53 7.26 0.56 V
RPE DRPE-1' 10.83 3.5 1.21 V
DRPE-2' 22.21 2.0 1.62 V
NSSA DNSSA-1 3.00 2.5 0.93 V
DNSSA-2 2.65 2.5 0.93 V
DNSSA-3 5.65 2.5 ].10 V
Clean DCW-lA 9.01 2.0 0.78 4'Trap
DCW-1B 1.50 9.0 0.41 4'Trap
DCW-3 1.07 1.5 0.79 V
DCW-6A' 8 15.0 0.51 3' Trap CCW-lA` 19.2 30
DCW-6B' 20 4.0 0.80 3' Trap CCW-1B' 158.5 48 (54)
DCW-6C' 13 5.0 0.98 V'
Exhibit 66 1 Revised Nov. 1996 PR07; Revised Aug. 1997 MR??U;
Revised Sept 1997 MR??5; Revised Nov. 1997 HIR?3/; Revised Dec. 1997 MR?35,
Revised Mar. /998 ~LIR?9U; Revised h/ar. /999 MR2~8 & H!R?~9; Revised h/ay 2000 TR86