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<br />1 <br /> <br />2.2.1.4 Bedrock Water Quality Water sampling and analysis are no longer required from <br />' the bedrock monitoring holes. However, as required by DMG, prior to entering Federal leases <br />C-8424 and C-8425, one water quality sample was collected and analyzed from each of the <br />monitoring holes in federal leases C-8424 and C-8425. Such sampling was limited to the <br />middle (coal facie) zone. <br />' The Deserado Mine First Annual Hydrology Report (December 1985) contains baseline water <br />quality data for the bedrock zones except for wells in federal leases C-8424 and C-8425. <br />Baseline water quality data for these wells are given in the Thirteenth Annual Hydrology <br />' Report (January 1998). Water quality data for 32-7M was collected in 2001 prior to mining it <br />out and is included in Appendix C. Comparing the 2001 data to the 1997 data indicated only <br />slight changes with a general improvement in quality for most parameters of 32-7M. <br />2.2.1.5 Mine Water Balance Table 2-2 shows the water balance for the Deserado Mine. No <br />' water has been pumped from underground workings since January 10, 1996. Electric power <br />to the pumps has been cut off due to the underground fire; the pumps have been removed. <br />During the 1996-1997 period, Deserado Mine started disposing the prep plant thickener water <br />' in the mined out area of the D-Seam (the first longwall district). This water would have been <br />othennrise discharged through Pond PP-2. A description of how these numbers are arrived at <br />follows. <br /> <br /> <br />i <br /> <br />u <br /> <br />i~ <br />' ~ <br />