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EXHIBIT G -WATER INFORMATION <br />1 The operation is not expected to directly affect existing surface or <br />' groundwater systems in the vicinity. The affected area is located in the <br />stream valley of Sand Creek which is an alluvial aquifer tributary to the <br />' South Platte River. The channel is normally dry with the groundwater <br />' Level occurring several feet below the surface. Recharge of the aquifer <br />is accomplished from precipitation and runoff in the basin, so that the <br />' groundwater Level fluctuates and occasionally becomes surface flow <br />' during high runoff periods. Thus the normal water resources available <br />in the area are subsurface. <br />The proposed operation will require up to 750 gpm process water <br />' to wash the sand during screening and grading. The water will be <br />' pumped From a pit well adjacent to the washing plant area, and piped to <br />a boil box and spray bars located at the screens. The wash water then <br />' flows through a sand screw reservoir and a settling pond, and is returned <br />' to the pit well for reuse. The water use is essentially a closed system <br />which will not affect the quality of the subsurface supply from which it <br />' is obtained. Consumption of process water is minimal and occurs by <br />1 <br /> <br /> <br />1 <br />1 <br />evaporation during the screening operation and from the surfaces of .the <br />sand screw reservoir and settling pond. Quantitatively, of the estimated <br />327. 5 acre feet of water pumped through the system annually, approxi- <br />mately 3. 1 acre feet or 0. 9% will be consumed. An alternate method of <br />extraction of the materials will be the operation of a small capacity <br />dredge to remove the sands and silt and pump the slurry by pipe Line <br />directly to the washing plant for processing. In such a case process <br /> <br />