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• CAiI.R13 -Exhibit 6 <br />Water Iafotmation <br />Page 13 <br />The wells with the best production are located along St. Vrain Creek and presumably are completed <br />in the ut-oonsolidated floodplain deposits. <br />USGS ~ File Report 78-567 presents hydrologic data from water table aquifers in the area. Fight <br />wells in the southern part of Drnve Flats, south of the proposed mining area, are included in the <br />report. 'These data include the aquifer the well is completed in, depth of well and water, and chemical <br />analyses. Three of the wells reportedly are completed in alluvial and oerrace gravel, three in the Pierre <br />Shale and two in dune sand. All wells are less than 81 feet in depth. The wells oompleled in the <br />Pierre Shale are inferred to be completed in the weathered zone or in the Hygiene Sandstone member. <br />~J <br />• <br />