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• analyses of pump test data. An average value <br />for transmissivity of 10 gallons per day per <br />foot, and storage coefficients of 0.001 for <br />confined conditions, and 0.05 for unconfined <br />conditions are considered to be representative <br />of the 100-foot zone above the F seam. <br />3. The static water level in the overburden varies <br />widely over the coal Tease area and generally <br />the water table is a very subdued reflection of <br />the topographic surface. However, an average <br />value of over 100 feet above the F seam is <br />considered a reasonable approximation. <br />• The <br />No. <br />exp <br />and <br />and <br />results presented in Figure 2.8.5.A, (Mt. Gunnison <br />1 Mine MRP) show that maximum inflows would be <br />ected about five years after commencement of mining <br />would vary between 8 gpm and 40 gpm for the confined <br />unconfined conditions, respectively. <br />Other estimates of mine inflows have been made. The <br />Technical Environmental Analysis (p. 58) cites 200 gpm <br />as the average mine inflow for the life of the mine. <br />The basis for this estimate is not given. The NPDES <br />permit application (p. 3) estimates a maximum mine <br />inflow of 220 gpm. <br />• Prior to construction of the mine entries, piezometers <br />were installed in the collulvial/landslide strata <br />-31- <br />