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1 <br />upper, middle and lower respectively as a matter of simplicity. The Deserado Mine coal seams <br />' are located near the bottom of the Coal and Siltstone Facies (middle zone). Water levels were <br />measured in the groundwater monitoring piezometers according to the schedule in Appendix A. <br />' The water level is measured quarterly in Qal-5, and samples collected annually to analyze for <br />the water quality parameters listed in Table 2-1. <br />' As a part of the mid-term review technical revision (TR48), DMG approved discontinuing the <br />monitoring of the following wells: <br />' TW2-7U It has remained dry <br />TW2-7L It has remained dry <br />' 2-7U It has remained dry <br />2-7M It has remained dry <br />2-7L It has remained dry <br />' 35-4U It has remained dry <br />35-4L It has remained dry <br />RM-1 It has remained dry <br />' <br />35-4M This hole is venting methane; presumed dry <br />36-2U This well is in a sealed, inactive mining area <br />36-2L This well is in a sealed, inactive mining area <br />BME also requested that the monitoring frequency be reduced to annual for all bedrock wells <br />and quarterly for alluvial well Qal-5 and the water sampling requirement be annual for Qal-5. <br />DMG approved BME's application on November 10, 1998. These changes took effect for the <br />1998-1999 water year. <br />During October 1984, the Taylor Draw Reservoir facilities were completed and the reservoir <br />began filling with water. The area around the alluvial groundwater holes has become a shallow <br />water mud flat area with the deposition of mud, silt and sand at high reservoir levels. As a <br />result, alluvial groundwater monitoring holes Qal-1, Qal-2, Qal-3, Qal-4 and Qal-6 have been <br />destroyed and are no longer available for monitoring. Alluvial well Qal-5 is still being monitored. <br />During May 1987, longwall panel 1 was mined past the location of 2-12U. The location was <br />subsided and the monitoring hole could no longer provide usable data. Accordingly, Western <br />Fuels (now BME) submitted an application for a Technical Revision on 6/7/88 to eliminate <br />groundwater monitoring at 2-12U. The Technical Revision was subsequently approved. <br />3 <br />