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<br />f <br /> Require- <br /> <br />Requirement Requirement ment <br />complied <br />Comment <br /> citation <br />with ? lyes <br /> I nol <br /> Compliance with the Basic Standards for ground water, as explained in item G, above, <br /> indicate the permittee is preventing adverse impacts to ground water quality outside the <br /> permit area. Monitoring data indicate the permittee is preventing impacts to water quantity <br /> outside the permit area. Mining has dropped the potentiometric surface of the Wadge <br />N. Prevention of overburden by about 200 ft. in undermined areas (wells 93M001, 93M003, and <br />adverse impacts CDMG regulation FBRI lA0), but not in areas beyond mining or the permit area (well 008-7758). Mining <br />to ground water <br />4 <br />11 <br />05 yes has no[ dropped the potentiometric surface of the Twen[ymile Sandstone outside the <br />systems outside . <br />. permit area (wells 91-MOOS, FBR-11B, and FBR-2). Pumping for domestic use at the <br />the permit area mine is probably the cause of a drop of few hundred feet in the potentiometric surface of <br /> the Trout Creek Sandstone at the mine's Trout Creek Sandstone wells 001-83-106 and <br /> 001-83-107. This drop is probably only a local impact because the two wells are near the <br /> Trout Creek's updip outrop belt; therefore, the impact would not be expected to extend <br /> be and the ermit area. <br />O. Prevention of <br />impacts to The Trout Creek Sandstone could supply the needs of the approved postmining land uses of <br />ground water that CDMG regulations pastureland and rangeland, in the permit area. Data from monitoring wells 97-012TC and <br />adversely impact 4.05.1(2) and yes 97013TC indicate mining has not impaired the use of the Trout Creek Sandstone in the <br />the postmining 4.05.11 permit area. <br />land use within <br />the ermit area <br />P. Minimization of <br />disturbance to the The disturbance to the hydrologic balance within and adjacent to the permit area caused by <br />hydrologic CDMG regulation mining and reclamation at the Foidel Creek Mine is the minimum that can be expected <br />balance within 4.05.1(1) yes from an underground mining operation at this location. Use of best management practices <br />and adjacent to indicates minimization of disturbance to the hydrologic balance. <br />[he permit area <br />Page 4 <br />