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The water level in Hole 31-7M was static compared to last year. This well is up gradient <br /> from mining activity and the water level fluctuation is minimal. <br /> Monitoring Hole 32-7M was plugged in August 2010 to eliminate connection with the <br /> sealed off portion of the mine. <br /> 33-8M was measured at 0.2 feet higher than the previous year. <br /> The hydrographs of the "lower sandstone facies" are designated by the letter"L"following <br /> the hole number. <br /> Hole 2-17L showed a dropped of 0.1 feet from the prior year. This change is attributed to <br /> the fluctuation in water level within the D-seam workings. <br /> Hole 4-20L showed a rise of 0.2 feet from the prior year. This change is attributed to the <br /> fluctuation in water level within the D-seam workings. <br /> Monitoring Hole 32-7L was plugged in February 2001 to eliminate connection with the <br /> sealed off portion of the mine. <br /> Hole 33-8L showed a 0.1 foot rise in the depth to water. This response is similar to the <br /> adjacent 33-8M and 33-8U holes. <br /> Monitoring hole 22-2L was completed in October 2005 for monitoring future mine <br /> expansion. This hole recorded a drop of 0.3 feet in head over the prior year. This <br /> fluctuation indicates that the impact of development workings have stabilized as <br /> compared to the previous year. <br /> From the baseline data, all three zones should be classified as "aquitards" in that they will <br /> yield water but at very slow rates. Mining in the B Seam has encountered only small <br /> flows of water and the mine is essentially dry. Typical inflows are in the order of 25 to 40 <br /> gpm (includes water resulting from leaks, water line brakes, production equipment and <br /> other similar contributions as well as that originating from inflows from geologic <br /> formations) with occasional short term increases when localized perched water tables are <br /> encountered. The average amount pumped from underground active workings during the <br /> water year was 54.97 gallons per minute. <br /> Water leaking out of caved areas is routed to the sumps at the end of gateroads. A new <br /> dewatering system was installed in May 2012 to pump excess water captured <br /> underground to the surface for treatment, re-infiltration, and potentially discharge. Prior to <br /> this installation no underground water had been pumped out of the mine since the <br />