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<br />The natural recharge of groundwater in the Hueco Bolson <br />deposits in the EI Paso area is considerably less than the <br />discharge from wells. Presently, annual wel1 yields is 10 <br />cimes the estimated average annual recharge to the aquifer <br />and wacer levels are declining approximately LWO to three <br />feet per year. <br /> <br />As large quantities of fresh groundwater concinue to be <br />mined from Lhe Hueco Bolson, it is expected that chere will be <br />problems with: (a) vertical leakage from the' alluvium and <br />movemenc of other saline wacers from underlying and adjacent <br />saline wacer bearing deposi u; (b) dec lining well yields; and <br />(c) increasing pumping costs. The EI Paso area's future is <br />impaired by both wacer quality and wacer supply problems. <br /> <br />69 <br /> <br />r ."' <br />. :,.', <br />o '~I" . -'" <br />