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No water was observed in the upper mudstone-shale <br />sequence. The first water observed was developed from a <br />calcarious sand at 75 feet. This sand coincides with the <br />uppermost sand member identified on the correlated section, <br />Plate II. Because this well later collapsed, a static <br />water Level measurement was not made. <br />We11 No. 2 was constructed to a depth of 20 ft. throuch a <br />thin veneer of soil and weathered bedrock. The water level <br />observed in this hole suggests there is a seasonal water <br />table maintained in the weathered upper surface of the <br />shale in the valley floor. <br />The Coalmont Formation is, at best, a poor aquifer. Although <br />different artesian heads may be measured in different portions of <br />thesequence these pressures represent only local conditions. <br />Due to the high degree of interbedding and lensing in the <br />aquifer, no consistent piezometric surface is mappable on a <br />regional scale in lowermost beds of the Coalmont. <br />Rate of Ground Water Flow <br />The permeability of sediments in the overburden was <br />determined from laboratory analysis of core samples collected <br />at the highwall of the existing pit. Sample A was collected <br />from the laterally most continuous sandstone in the sequence. <br />This unit is located at 90 ft in the pit section, at 350 ft. <br />g <br />