Laserfiche WebLink
It <br />3.2.2 CHARACTERISTICS OF WATER BEARING STRATA <br />In the area of CWI's coal loadout facility ground water <br />occurs in the alluvial sediments of the North Fork Gunnison <br />River. Alluvium in the study area is formed by a mixture of <br />gravel, sand and clay, including mostly basalt boulders. <br />The permeability of the alluvial aquifer is relatively low <br />due to the high content of clay and silt particles. Field <br />permeability test data indicated an average permeability of <br />approximately K = 10-q cm/sec or 0.2 ft/day. More data regarding <br />the permeability of the aquifer and the yield to a well will be <br />• obtained after the installation of a water well within the area <br />of the coal loadout facility. The approximate location of this <br />well, which should be completed in October, 1982, is shown in <br />Plate 1. <br />The ground water table in the alluvial aquifer, as <br />measured during the field investigation in September, 1982, is <br />very high. The water table, as shown in cross-section A-A' (Plate <br />2) between the three monitoring wells MW-1, 2 and 3 is well above <br />the elevation of the water level in the North Fork Gunnison <br />River. The approximate difference between the river water level <br />and the water levels measured in the monitoring wells are the <br />following: <br />• <br />9 <br />GEO-HYDRO CONSULi1NG, INC. <br />