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<br />IX-4 <br /> <br />Hillier, D.E., Schneider, P.A., Hutchinson, E.C.: <br />(1976-1977) in the Greater Denver Area, Front <br />Colorado; U. S. Geological Survey, 19B3. <br /> <br />Depths to the Water Table <br />Range Urban Coordor, <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />portions of the gravel lake is normally lower than the pre-mlnlng water <br />table. The lake water level is normally higher than the pre-mining water <br />table in the downstream portion of the lake. The lake acts as a water table <br />drain in its upstream area, and as a water table recharge zone in its <br />downstream area. If a series of lakes are constructed, the resulting lake <br />water levels are stepped down from one lake to another in a manner so that <br />the overall drop is approximately the same as the river slope. <br /> <br />REFERENCES <br /> <br />Bittinger and Associates; Water Utilization Study Water District 2; Colorado <br />Department of Natural Resources; July, 1968. <br /> <br />The larger the lake, the larger the impact on the adjacent water table <br />elevations. Due to the fact that gravel pit lakes normally recharge the <br />groundwater aquifer, the water quality of the lakes is important in <br />maintaining good groundwater quality. <br /> <br />Hillier, D.E., Schneider, P.A: Hutchinson, E.C.: Well Yields and Chemical <br />Quality of Water From Water Table Aquifers in the Greater Denver Area, <br />Front Range Urban Corridor, Colorado, U.S. Geological Survey, 1983. <br /> <br />Wright Water Engineers; Study of Integrated Water Use South Platte River <br />Basin Water District No.8; Colorado Department of Natural Resources; <br />July, 1968. <br />