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- 3 - August 27, 1992 <br />be markedly higher than current predictions indicate. <br />Conclusions <br />Monitoring data in compliance with Rule 4.05.13 reveals that the inactive <br />Somerset and recently activated Sanborn Creek mines are not having an adverse <br />effect of the quality or quanity of surface or ground water in any applicable <br />drainage area, and should not be causing material damage to the adjacent <br />Gunnison River alluvial valley floor. <br />The results of the "B" seam inflow (From the Rawlins Sandstone ,4quifer) study <br />to be conducted during 1992 for the Sanborn Creek Mine may alter predictins <br />about potential degradatin to Sanborn Creek and ultimately Gunnison Creek. <br />Should seeps or gravitational discharge begin around the southern portion of <br />the Somerset permit boundary due to increased ground water levels in the <br />inactive Somerset mine ~dorkings or should the NPDES outfalls begin <br />discharging, the operator may wish to implement a monitoring site downstream <br />of the Somerset boundary along Gunnison Creek. NF-2, upstream of the Somerset <br />miners currently -he farthest downstream site on Gunnison Creek monitored by <br />the operator (See Hydrologic Area Map EB-3286). <br />lg <br />4651E <br />