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historic maximum or minimum levels observed for that well for more than two consecutive <br /> months, the Operator will take steps consistent with the Groundwater Monitoring Plan <br /> previously submitted and approved. Some of those steps include: <br /> • The Operator will evaluate the cause and will notify DRMS within seven <br /> days. <br /> • After the DRMS has been notified, the Operator will review the data and <br /> available information and submit a report to DRMS within 30 days. The <br /> evaluation will include discussions with the well owner who has <br /> contacted the operator regarding a concern, if any, and review of <br /> baseline data from the well and vicinity to evaluate whether changes <br /> may be due to seasonal variations, climate, mining, slurry wall lining or <br /> other factors. The report will identify the extent of potential or actual <br /> impacts associated with the changes. <br /> • If the extent of groundwater changes due to mining or reclamation <br /> activities is determined to be a significant contributing factor that has or <br /> may create adverse impacts, the mining-associated impacts will be <br /> addressed to the satisfaction of DRMS. <br /> • The Operator will begin implementing one or more mitigation measures <br /> if mining and reclamation activity is determined to be a significant factor <br /> to groundwater changes requiring mitigation. <br /> • Mitigation measures may include, but are not limited to: <br /> o Placing water in a recharge pond to raise groundwater levels <br /> around the well. <br /> o Constructing a local clay liner at the edge of the mine Cell (i.e., <br /> between the dewatering point and the well) in order to raise water <br /> levels on the well side of the liner and mitigate dewatering effects. <br /> o Cleaning the well to improve efficiency. <br /> o Providing an alternative source of water or purchasing additional <br /> water to support historic well use in terms of water quantity and <br /> quality. If needed, water quality parameters will be checked in <br /> affected wells to ensure alternative sources support historic use. <br /> o Modifying a well to operate under lower groundwater conditions. <br /> This could include deepening the well or lowering pumps. All <br /> work would be done at the operator's expense with the exception <br /> of replacing equipment that was non-functional prior to mining. <br /> 17 <br />