PERMFILE131380

• Permit No: C1981041A
• IBM Index Class Name: Permit File
• Doc Date: 6/16/2003
• Doc Name: TOC to Appendix 20-3
• Section_Exhibit Name: Tab 20 Subsidence Survey Monitoring & Control Plan
• Media Type: D
• Archive: Yes

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TABLE 7. Pillar failure maximum subsidence predictions
for Ute Water Co. surface facilities.
Horizontal
Pillar Maximum Maximum Strains Maximum
Oepth Width* Subsidence Tensile Compressive Tilt
_
' ft ft ft ut) ut (' )
200 12 1.50 4880 3820 70.9
~ ~ 14 1.12 3640 2860 52.9
15 0.99 3220 2520 46.8
_
' 16 0.88 2660 2240 41.6
18 0.72 2340 1840 34.0
20 0.60 1950 1530 28.4
'- 30 0.32 1040 820 15.1
250 12 1.85 4810 3770 69.9
14 1.38 3590 2820 52.2
15 1.22 3170 2490 46.1
• 16 1.08 2810 2200 40.8
' 18 0.87 2260 1780 32.9
20 0.72 1870 1470 27.2
30 0.37 960 760 14.0
' 300 12 2.20 4770 3740 69.3
14 1.64 3550 2790 51.7
• 15 1.44 3120 2450 45.4
r 16 1.28 2770 2180 40.3
18 1.03 2230 1750 32.5
20 0.85 1840 1440 26.8
30 0.43 930 730 13.1
*All pillars 80 ft. in length and 6.5 ft. in height.