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of the water. The operator is monitoring springs in currently affected azeas <br />quarterly for major cations and anions, and no changes have been detected. <br />Water utilized for mine operations is obtained from a well in the Steven's Gulch <br />well field. Consumption from this alluvial/ colluvial deposit is measured with a <br />wellhead gage. From July 1990 through June 1991, BRL produced 720,000 tons of <br />coal and imported approximately 18,000 gpd from the Steven's Gulch well. Water <br />quality information is also collected and reported to the Division. In 1986, CWI <br />produced 333,292 tons of coal and consumed 8,700 gpd while in operation. In <br />1983, the Bowie No. I Mine produced 1.3 million tons of coal and consumed <br />27,400 gpd. There has not been any detectable impact to the groundwater/surface <br />water regime in this well field since they initiated pumping at the site. <br />Dewatering will occur at the Bowie No. 1 Mine but will be insignificant in extent. <br />Mine inflows may be derived from fractures associated with perched aquifers <br />within the overlying Mesaverde, surficial alluvial/colluvial sediments, and stream <br />flows associated with fracture systems as well as from dewatering of the coal <br />aquifer itself. In 1983, approximately 300,000 gallons of water flowed into the <br />mine from perched, discontinuous, water-beazing sandstones overlying the D seam. <br />A Division inspection in Mazch 1986 documented inflows of 200 gallons per day. <br />This inflow gradually slowed once this perched aquifer was completely dewatered. <br />Inflows during 1991 failed to produce over 3 gpm for any significant period of <br />time. Because the portals at the Bowie No. 1 Mine were sealed in 2001 and the <br />Bowie No. 1 West Mine portals were sealed in 2000, there is no current <br />information on mine inflows. <br />BRL has established an extensive monitoring system to monitor water levels in <br />colluvial/alluvial deposits in the permit azea and in the alluvium of streams <br />overlying mine entries. Permeability tests on colluvium in the East Roatcap Creek <br />drainage averaged 7.2x l OZft/day. No significant water level fluctuations have been <br />noted in conjunction with mine inflows. Mine inflows in the mains underlying <br />East Roatcap Creek averaged less than 1 gpm from 1987 to 1993. <br />The permeability of the coal aquifer was measured in 1986 at 1.4x10zft/day. This <br />insignificant aquifer has yet to make a visible contribution to mine inflows. Bowie <br />Resources Limited imported water for dust suppression from their wells in Steven's <br />Gulch. In 1983, for example, the operator estimated that approximately 6.24 <br />million gallons of water is consumed as moisture on the coal, 0.5 million gallons is <br />consumed through increased humidity in the ventilation air, and less than 0.5 <br />million gallons is lost through seepage into the floor of the mine. <br />Surface Water - <br />The Bowie No. 1 Mine area will not significantly affect the local surface water <br />hydrology or the regional hydrology. Sediment control measures will ensure <br />protection to stream quality. No mine water will discharge from the portals and no <br />32 <br />