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January 31, 1996 underground fire. During this interim, excess water was pumped from <br /> the B-seam to the abandoned D-seam for storage. <br /> 2.2.1.4 Bedrock Water Quality Water sampling and analysis are no longer required <br /> from most of the bedrock monitoring holes. However, as required by DRMS, prior to <br /> entering Federal leases C-8424 and C-8425, one water quality sample was collected and <br /> analyzed from each of the monitoring holes in federal leases C-8424 and C-8425. Such <br /> sampling was limited to the middle (coal facie)zone. <br /> BME has agreed to sample the point of compliance monitoring well on an annual basis <br /> starting with the 2006-2007 hydrologic year. The point of compliance in 2007-2008 was <br /> monitoring well 29-4M. Starting in 2008-2009 the point of compliance was changed to <br /> monitoring well 22-3M. Samples are analyzed for dissolved iron and manganese and <br /> total dissolved solids. Field parameters measured are pH, conductivity, and temperature. <br /> Results for this well are found in Appendix C. <br /> The Deserado Mine First Annual Hydrology Report (December 1985) contains baseline <br /> water quality data for the bedrock zones except for wells in federal leases C-8424 and C- <br /> 8425. Baseline water quality data for these wells are given in the Thirteenth Annual <br /> Hydrology Report (January 1998). Water quality data for 32-71VI was collected in 2001 <br /> prior to mining it out and is included in Appendix C of the Seventeenth Annual Hydrology <br /> Report (January 2002). Comparing the 2001 data to the 1997 data indicated only slight <br /> changes with a general improvement in quality for most parameters of 32-7M. <br /> Water quality data for 30-8M was collected in December of 2006 prior to longwall mining <br /> of adjacent areas. Comparing the 2006 data to the 1997 data indicates a general <br /> improvement in water quality. <br /> Water quality data for 29-4M was collected in September of 2012 prior to longwall mining <br /> early in 2013. Comparing the 2012 data to the 1997 data indicates a general <br /> improvement in water quality. <br /> 2.2.1.5 Mine Water Balance Table 2-2 shows the water balance for the Deserado Mine. <br /> No water was pumped from underground workings between January 1996 and May of <br /> 2012. Pumping of excess mine water to the surface recommenced in May 2012. <br /> During the 1996-1997 period, Deserado Mine started disposing the prep plant thickener <br /> water in the mined out area of the D-Seam (the first longwall district). This water would <br /> have been otherwise discharged through Pond PP-2. <br /> 8 <br />