PERMFILE104696

• Permit No: C1981022
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: PREDICTED LONGWALL SUBSIDENCE FOR THE SANBORN CREEK MINE ABEL 1997
• From: Old Exhibit 2.05-E2 Part 4
• Section_Exhibit Name: Exhibit 2.05-E8 Part 3
• Media Type: D
• Archive: No

Sanborn Creek Subsidence Page 6 September 2, 1997
Table 1. Approximate interburden spacings and lithologic
distributions between coal seams.
Borehole Shale Sandstone Coal Total
Ident. ($ in ($ in ($ in In terburden
section) section) section) T hickness
( feet)
~,

"E" Seam to "D" Seam
WSC-1 28.5$ 56.9$ 15.1$ 145.8
WSC-2 36.8$ 52.0$ 11.2$ 135.8
WSC-9 57.8$ 33.5$ 8.7$ 89.1

L WSC-7 ----- ----- ----- 138.2
Mean 91.0$ 47.3$ 11.7$ 125.9
Std Dev 15.1$ 12.2$ 3.2$ 28.2
"D" Seam to "C" Seam
WSC-1 28.5$ 70.9$ 0.6$ 192.1
WSC-2 40.8$ 59.2$ 0.0$ 188.5
WSC-9 49.0$ 54.3$ 1.7$ 199.3
WSC-7 ----- ----- ----- 195.0
Mean 37.8$ 61.5$ 0.8$ 193.7
Std Dev 8.2$ 8.5$ 0.9$ 4.6
~ "C" Seam to "B" Seam .
WSC-1 63.3$ 36.7$ 0.0$ 41.3
WSC-2 ----- ----- ----- 34.6
r WSC-9 28.5$ 71.5$ 0.0$ 54.3
L WSC-7 ----- ----- ----- 46.7
Mean 45.9$ 54.1$ 0.0$ 44.2
L Std Dev 29.6$ 24.6$ 0.0$ 8.9
L "E" Seam to "C" Seam
WSC-1 27.9$ 63.3$ 8.7$ 349.8
WSC-2 38.3$ 55.0$ 6.6$ 331.1
L WSC-4 482$ 96
6$ 5
1$ 307.1
WSC-7 . -
. 339.1
Mean 38.1$ 55.0$ 6.8$ 338.5
L Std Dev 10.2$ 8.4$ 1.8$ 16.6
~•
L
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