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Page 4 <br />Requirement Regulation Comment <br />24. Agreement of observed <br />hydrologic impacts with <br />"probable hydrologic <br />consequences" projected in <br />mining <br /> <br />CDRMS regulation <br />2.05.6(3) and <br />requirement to keep <br />current, CDRMS <br />regulation 2.03.3(1) <br /> <br />Impacted are as predicted in the PHC. <br />25. Adequacy of ground <br />water monitoring program <br /> <br />CDRMS regulation <br />4.05.13(1) <br /> <br />The current ground water monitoring program <br />continues to adequately address the protection of the <br />hydrologic balance. <br />26. Adequacy of surface <br />water monitoring program <br /> <br />CDRMS regulation <br />4.05.13(2) <br /> <br />The current surface water monitoring program <br />continues to adequately address the protection of the <br />hydrologic balance. Surface water is currently <br />suitable for watering livestock, wildlife, and <br />irrigation. <br /> <br />Additional Notes and Resources: <br /> <br />DRMS requested additional written interpretation and trend analysis in accordance with Rule 4.05.13(4)(c)(iii) be <br />provided with AHRs which Elk Ridge Mining began providing with the 2017 AHR. This is a primary reasons the <br />previous years AHR are being combined into a single review as it the most efficient and encompassing review of <br />the mines water quality condition to present. <br /> <br />Section 2.04.7 of the PAP includes the monitoring plan for mine. Monitoring locations are shown on Map 2.04.7- <br />1A and summarized on Table 2.04.7-1. <br /> <br />EPA ECHO was utilized to check for a history or any outstanding violations with regaurd the the NPDES permit <br />CO0000213 link below. <br /> <br />Link EPA Enforcement and Compliance History: <br />https://echo.epa.gov/trends/loading-tool/reports/dmr-pollutant-loading?year=2017&permit_id=CO0000213 <br />