REP09581

• Permit No: C1981018
• IBM Index Class Name: Report
• Doc Date: 4/1/1996
• Doc Name: 1995 AHR
• Annual Report Year: 1995
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

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TABLE 2-2
STATISTICAL SUMMARY OF WATER DEPTH IN BEDROCK HOLES 8 QAL-5
DATE MAX. DATE MIN. AVG. STD DEV. READINGS
TW2-7U - 157.00 - 157.00 157.00 - 4
TW2-7L 0821/95 859.00 12/22/94 841.00 849.25 7.89 4
2-7U 0321/95 127.30 09/19/95 127.00 127.15 0.1500 4
2-7M 327/95 438.00 9V19/95 437.00 437.50 0.5000 4
2-7L - 280.00 - 280.00 280.00 - 4
TW2-17M 09/19/95 219.20 10/31/94 214.10 218.40 2.1622 4
2-17U x327/95 149.00 os/1s/95 1as.ao 1a7.7s 1.s3sa1 a
2-17L 9/19/95 405.90 0027/95 402.80 40.3.80 1.3563 4
4-20U 0327/95 200.10 0828/95 202.20 202.83 0.34911 4
4-20L 09/19/85 238.90 10/31/94 238.10 238.63 0.31125 4
35-4U 1222/94 244.00 0027/95 231.20 234.80 5.322 4
35-4M VENTING AIR 4
35-4L - 438.00 - 438.00 438.00 - 4
38-2U 0828!95 152.10 1222!94 150.40 151.33 0.740 4
38-2L 0327/95 197.20 12!221'94 181.80 192.75 8.341 4
OAL-5 0424/95 12.90 08/08/95 11.80 12.35 0.5074 12
2.2.2.3 Bedrock Water Level Data Hydrographs for the 15 bedrock monitoring holes are
contained in Appendix D. Table 2-2 contains a statistical summary of the water level data from
each of the 15 bedrock monitoring holes. The locations of the holes are shown on Plate 1 in the
pocket of this report. As noted in the original Deserado Mine permit application, the three zones
being monitored (upper sandstone iacies, siltstone and coal facies, and the lower sandstone)
identify three different stratigraphic zones which lack the characteristics of typical aquifers. The
strata are tight as demonstrated by pumping tests. Western Fuels has acquired a new water level
monitoring probe that allows monitoring of depths beyond the previous 300 foot limit.
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