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Require- Require- ment Requirement ment complied Comment citation with ? (yes /no L. Prevention of After mining is completed, New Horizon's surface water may be impacts to used in the former permit area for agricultural irrigation and surface water CDMG watering livestock and wildlife. The water curcently is suitable for that adversely regulation yes watering livestock and wildlife, and can be expected to be suitable impact the 4.05. I (2) for ircigation use once the disturbed lands aze revegetated postmining following the approved reclamation plan. land use M. Filing CDMG frequency of regulation yes and re orts 4.05.6 13) N. Timely filing CDMG of pond regulation yes re orts 4.05.6 l3 O. Content of CDMG pond reports regulation yes 4.05.6(13 P. Sampling Table frequency of 2.04.7-1 ground water of CDMG yes monitoring mining wells Permit C- 81-008 Q. Para- meters Table to be 2.04.7-1 analyze of CDMG d in mining yes ground permit C- water 81-008 sam les The Burro Canyon Formation, approximately 60 feet beneath the mined sequence, may be the only aquifer that has been or will be a drilling tazget for local water supply wells. The Burro Canyon Formation is not believed to be in hydraulic CWQCC communication with the mined stratigraphic sequence, and R. Basic regulation therefore is not expected to be affected by mining. Standards Prior to mining, naturally high concentrations of sodium and for Ground s yes sulfate rendered the water in the mining sequence unusable for Water 41.4 and domestic or irrigation purposes. The water is marginally usable 41 5 for livestock watering; spoil leachate will probably be no less usable. The downgradient monitoring wells, GW-N44,45,46 and GW-N 16, 17, 18, indicate current compliance with the Basic Standards if com Hance oints were established at these wells. Page 3