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While not yet a requirement of the mining permit, BME has agreed to sample the point of ' compliance monitoring well on an annual basis starting with the 2006-2007 hydrologic year. The current point of compliance is monitoring well 29-4M. Samples will be ' analyzed for dissolved iron and manganese and total dissolved solids. Field parameters measured will be pH, conductivity, and temperature. ' The Deserado Mine First Annual Hydrology Report (December 1985) contains baseline water quality data for the bedrock zones except for wells in federal leases C-8424 and C- 8425. Baseline water quality data for these wells are given in the Thirteenth Annual ' Hydrology Report (January 1998). Water quality data for 32-7M was collected in 2001 prior to mining it out and is included in Appendix C of the Seventeenth Annual Hydrology Report (January 2002). Comparing the 2001 data to the 1997 data indicated only slight changes with a general improvement in quality for most parameters of 32-7M. 2.2.1.5 Mine Water Balance Table 2-2 shows the water balance for the Deserado Mine. No water has been pumped from underground workings since January 10, 1996. During the 1996-1997 period, Deserado Mine started disposing the prep plant thickener water in the mined out area of the D-Seam (the first longwall district). This water would have been otherwise discharged through Pond PP-2. TABLE 2-2 MINE WATER BALANCE WATER IN GALLONS/YR GALLONS/MIN Production Equipment 31,248,000 59.45 Ventilation Humidity 9,983,591 18.99 Underground Storage of Thickener Water 6,400,000 12.18 Incidental (pipe leaks, road watering, wash down) 3,124,800 5.95 TOTAL 50,756,391 96.57 WATER OUT Coal Surface Moisture 24,723,468 47.04 Ventilation Humidity 20,821,610 39.61 Pumped Out 0 0 TOTAL 45,545,078 86.65 Water Left Underground 5,211,313 9.91 Water pumped from B seam to D seam 7,358,400 14 s