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dimensions of 40 miles wide by 200 to 300 miles long. This long <br />sequence vas followed by basinal subsidence which would cause a <br />. transgression of the sea, destroying the coal forming <br />environment. <br />The depositional processes caused [he coarsest grained members <br />sandstone) which are [he delta front sands to be [he most len[i- <br />cular and discontinuous. The coal beds are the most continuous <br />strata of [he unit. <br />4.2 Aquifers <br />4.2.1 Williams Fork Aquifer <br />-l Initial studies indicated saturated zones are associated with <br />sandstones and coals a[ the mine site ~WOOdWdrd-Thorfinnson 1975, <br />Golder 1976). Pump tests were carried out to determine permeabi- <br />lilies of these units and estimate the amount of water that would <br />flow into the initial mine boxcuts. Woodward-Thorfinnson <1975) <br />estimated a flow rate of up [0 175 gpm per 1000 ft boxcut in <br />preliminary work. Pump tests conducted by Golder X1976) showed <br />only 36 percent recovery in the upper unconfined aquifer <br />indicating that the aquifer encountered was of limited areal <br />extent. <br />To date, no significant or continuous water has been encountered <br />l by the Trapper mining activities. Therefore, we feel these <br />J saturated <br />-27- <br />