A reevaluation of the groundwater resources on State (Permanent School Fund) lands in eastern El Paso County, Texas, has resulted in the delineation of three areas where further hydrogeologic investigations are justified. The three areas were delineated on the basis of water chemistry and depth to groundwater. In this reevaluation, the three areas delineated all had total dissolved solids of less than 1,000 mg/L and a depth to groundwater between 200 and 400 feet. On the basis of projected and reported consumption rates in other areas of the El Paso region, a range in cumulative production rates from 120 to 1,200 gallons per minute from 2 to 10 wells would meet local water needs. It is noted, however, that this reevaluation is based solely on readily available hydrologic and hydrochemical data. This reevaluation does not include any analysis concerning sustainable yield for the delineated areas based on site-specific hydraulic conductivity and specific storage data. The investigations described in the proposed scope of work will be required to provide these data, address sustainable yield, and target optimal drilling sites for water-supply wells.Bureau of Economic Geolog
