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Mr. David Berry <br />Senior Environmental Protection Specialist <br />December 19, 1997 <br />Page 4 <br />12. How many measurements of the mine inflows were made during 1995 that lead to the <br />constant 18 gpm value for June through December 1995 indicated in your 1995 AHR? <br />Bear -The 18 gpm flow value was measured once or twice during the year. The flow <br />remained constant throughout the yeaz so numerous measurements were not considered <br />necessary. <br />13. In your 1996 AHR, the mine inflows for December 1996 aze noted as zero. Does this <br />indicate that Bear did not treat and discharge any mine inflows or that mine inflows <br />ceased? <br />Beaz -Bear ceased the discharge of mine water in September 1996 after a massive roof <br />fall and floor heave forced the installation of seals immediately inby sixth east. The mine <br />water from second west continued to flow and was consumed by the mine operation. The <br />mine water from third west was appazently contained within the roof fall and floor heave <br />rubble because it did not emerge from the seals inby sixth east before mining ceased at <br />the Bear No. 3 Mine in November 1996. <br />14. MCC's calculations of water discharge through the coal block between the NW Panel <br />sealed sump and the Beaz Mine aze based on the respective mine maps of MCC and Beaz. <br />Can Beaz representatives confirm that Bear did not mine to the south of its prescribed <br />boundary and, on the north side of the Beaz Mine, that mining stopped at the prescribed <br />boundary all as depicted on the maps? <br />Bear -Yes. See B-Seam Progress Map, (Frle #7). Can MCC make the same <br />confirmation? <br />15. Is there historical evidence of water at the Beaz Mine with high electrical conductivity <br />values? What do the Bear AHRs indicate on this subject? <br />Beaz -The water which was discharged by Beaz during 1996 (Outfa11001) had <br />conductivity values which would be expected for water from a coal mine. Conductivity <br />measurements ranged from 3,000 to 4,000 umhos/cm. <br />16. Please describe the ventilation system for the Beaz Mine. Is the Bear Mine now <br />completely sealed? <br />Beaz -See the mine map for the layout of the ventilation system. The Bear No. 3 Mine is <br />now completely sealed (File #7). <br />