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detected, the Operator will collect samples to confirm the exceedance as <br /> soon as practicable, but no longer than 14 days after receiving the <br /> exceedance. If confirmed, the Operator will work with DRMS to establish <br /> an appropriate supplemental sampling schedule. Only parameter(s) <br /> which exceed the regulatory limits will be analyzed and will continue to be <br /> monitored until the parameter(s) drop below the allowable limit. <br /> The Operator will begin implementing one or more mitigation measures if mining and <br /> reclamation activity is determined to be a significant factor to groundwater changes <br /> requiring mitigation. Mitigation measures may include, but are not limited to: <br /> • Review chemical inventory for elevated analytes and develop plans for <br /> chemical containment, abatement, reduction and/or substitution. Confirm <br /> effectiveness of appropriate controls surrounding chemical spill. <br /> • Review effectiveness of slurry walls and source area containment. <br /> • Collect additional samples of stockpiled materials and review placement <br /> and containment of stockpiles if identified analytes are detected in <br /> elevated rates. <br /> • Remove suspected contaminated materials and replace with clean fill or <br /> another suitable material. <br /> 3.5 Annual Report <br /> A water quality summary report will be prepared annually and submitted with the <br /> Operator's annual DRMS report. The report will present summaries of the data collected <br /> during the previous year and compare such data to State water quality standards and the <br /> baseline monitoring results. <br /> 4. WATER LEVEL MONITORING PLAN <br /> 4.1 Monthly Monitoring <br /> The Operator's water level monitoring plan submitted in June 2021 has been approved <br /> by DRMS. Consistent with that plan, the Operator will continue to monitor its groundwater <br /> level wells monthly to improve the operator's knowledge of the water table on- and off- <br /> site during operations. <br /> 4.2 Criteria and Trigger Values <br /> Certain water level deviation observed during monthly water level monitoring may initiate <br /> additional investigation. Specifically, once mining operations commence, if RMCC <br /> observes water levels in a monitoring well that are more than two feet above or below <br /> 16 <br />