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i Require- Require- ment Requirement ment complied Comment citation with ? lyes / nol R. Sampling Section frequency of 2.04.7 of ground water CDMG yes monitoring mining wells Permit C- 81-035 S. Para- meters Section to be x.04.7 of analyze CDMG d in mining yeS ground permit C- water 81-035 sam les The following two aquifers are [he most likely [o be affected by mining at King Coal: the Hay Gulch alluvium and the Cliffhouse Sandstone. The Hay Gulch alluvium is monitored in [he Wil[ze well, downstream from the west sed. pond. Historical data indicate CWQCC compliance with the Basic Standards for ground water in this T. Basic regulation aquifer if a compliance point was established a[ the Wil[ze well Standards location. for Ground s 41.4 and yeS Although ground water impacts to the Clifthouse Sandstone are Water 41 5 not expected (see Comment AA, below), compliance with the basic ground water standards in this aquifer is not known because the Cliffhouse is not monitored. A regional aquifer about 250 ft. beneath the mine workings, the Point Lookout Sandstone, was planned for monitoring in late 2000 in the Hau en well about 5000 ft. down radien[ from [he workin s. U. Restoration of ground water CDMG King Coal's eleven acres of surface disturbance probably is not recharge to regulation yes enough to diminish recharge to aquifers, if any are recharged in the approximate 4.05.11(3) area. premining rate V. Prevention of Compliance with the Basic Standards for ground water, as adverse explained in item T, above, indicate the permittee is preventing impacts to CDMG adverse impacts [o alluvial ground water systems outside [he permit ground water regulation yes area. Impacts to the Cliffhouse Sandstone, if any, are not known systems 4.05.1 I because the Cliffhouse is not monitored. The potential for impacts outside the to the Clifthouse appear unlikely, as explained in Comment AA, ermit area below. Page 3