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groundwater changes due to mining or reclamation activities is determined to be a significant contributing <br /> factor that has or may create adverse impacts, the mining associated impacts will be addressed to the <br /> satisfaction of the DRMS. <br /> Miner will begin implementing one or more mitigation measures if mining and reclamation activity is <br /> determined to be a significant factor to groundwater changes requiring mitigation. <br /> Mitigation measures may include, but are not limited to: <br /> ➢ Placing water in a recharge pond to raise groundwater levels around the well. <br /> ➢ Constructing a local clay liner at the edge of the mine Cell (i.e. between the dewatering point and <br /> the well) in order to raise water levels on the well side of the liner and mitigate dewatering effects. <br /> ➢ Cleaning the well to improve efficiency. <br /> ➢ Providing an alternative source of water or purchasing additional water to support historic well use <br /> in terms of water quantity and quality. If needed, water quality parameters will be checked in <br /> affected wells to ensure alternative sources support historic use. <br /> ➢ Modifying a well to operate under lower groundwater conditions. This could include deepening the <br /> well or lowering pumps. All work would be done at the miner's expense with the exception of <br /> replacing equipment that was non-functional prior to mining. <br /> Groundwater Quality Monitoring Plan <br /> Since mining operations at the site will take place inside of slurry wall lined cells, except for establishing the <br /> Freshwater Pond and Siltation Pond, it is unlikely that these operations will have a negative effect on <br /> groundwater quality.To establish pre-mining groundwater quality for the site the permittee will sample MW-2 <br /> on the downgradient side of the site and MW-5 on the upgradient side of the site prior to mining. <br /> To establish that mining has had no negative affect on water quality in the area, The Operator will sample <br /> MW-2 annually during the same quarter as the initial baseline monitoring. The water quality samples will be <br /> tested for the analytes listed in Tables 1 through 4 of"The Basic Standards for Ground Water," excluding <br /> the radiological section of Table 1. RMCC will notify DRMS within 7 days of receiving a lab report that <br /> indicates any of the standards set forth in Tables 1 through 4 have been exceeded. If a lab report indicates <br /> an exceedance, a new sample will be taken to verify the exceedance and discount lab contamination. Any <br /> water quality lab results will be included in the DRMS annual report for the site. <br /> Annual groundwater testing will be conducted for the life of the mine unless the requirement has been <br /> reduced or eliminated through the Technical Revision process with the DRMS. <br /> Red Tierra Equities, LLC—Section 20 Mine—MLRB 112 Permit Application <br /> Exhibit G-5 <br />