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Require- <br /> Require- ment <br />Requirement ment complied Comment <br /> citation with ? (yes <br /> /no <br /> Mine pit excavations disrupt the potentiometric surface. The <br />S. Restoration PHC predicts that after reclamation, there will be neazly full <br />of ground recovery of the potentiometric surface outside the pits and <br />water CDMG partial recovery of the potentiometric surface inside backfilled <br />recharge to regulation yes pits. Spoil springs may reduce ground water recharge by <br />approximate 4.05.11(3) diverting some ground water flow to surface flow, but New <br />premining Horizon's expected total aggregate spoil spring dischazge of less <br />rate than 1 cfs will be too small to reduce ground water recharge <br /> below the a roximate reminin rate. <br />T. Prevention of <br />adverse <br />impacts to CDMG The PHC predicts no adverse impacts, and monitoring data <br />ground water regulation yes <br />indicate no adverse impacts. <br />systems 4.05.1 1 <br />outside the <br />ermit area <br />U. Prevention of <br />impacts to CDMG Impacts, if any, have not exceeded impacts predicted in the PHC. <br />ground regulation May and August 2004 samples from well GW-N17P1 show <br />water that s anomalously low TDS concentrations, probably caused by dilution <br />adversely 4.05.1(2) yeS of native water from infiltrating fresh irrigation water. <br />impact the and <br />postmining 4.05.11 <br />land use <br />V. Minimization <br />of <br />disturbance <br />to the CDMG The disturbance to the hydrologic balance within and adjacent to <br />hydrologic the pennit area caused by mining and reclamation at New <br />balance regulation yes Horizon are the minimum that can be expected from a surface <br />within and 4.05.1(1) pit operation. <br />adjacent to <br />the permit <br />area <br />W. Prevention of <br />material <br />damage to the CDMG There is no known impairment of water use caused by the mine <br />hydrologic regulation yes <br />outside the perrnitazea. <br />balance 4.05.1(1) <br />outside the <br />ermit area <br />Page 4 <br />