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Climax Mine <br /> March 26, 2018 <br /> Page 2 of 2 <br /> The permit may be further modified as appropriate in the future if site specific classification and standards are <br /> adopted by WQCC. <br /> DRMS agrees that it is reasonable to monitor for a smaller subset of analytes from WQCC Regulation 41 Tables 1 <br /> through 4 as"indicator parameters"on a regular(quarterly)basis, and also accepts the rationale provided for <br /> selecting the quarterly monitoring analyte list as provided in section 5 of the submitted WQMP-with the addition <br /> of fluoride. Fluoride values in the Arkansas basin point of compliance well ARK-MW-001D are very close to, <br /> and have met at several times,the existing Table Value Standard. DRMS feels that it is appropriate at this time to <br /> include fluoride to the list of"indicator parameters"sampled and analyzed for on a quarterly basis at the points of <br /> compliance. The resulting quarterly data will be utilized to determine if expanded monitoring is warranted. It <br /> should be noted that DRMS or WQCC may require Climax to demonstrate compliance with the full Interim <br /> Narrative Standard(or site specific standard if/when adopted) analyte list at any time. <br /> This concludes the Division's adequacy review of TR27. This letter shall not be construed to mean that there are no <br /> other technical issues in the submittal. Other issues may arise as additional information is supplied. DRMS is <br /> committed to working with Climax to approve a Water Quality Monitoring Plan at this site that will allow mining to <br /> continue while implementing all reasonable environmental protections in compliance with WQCC and DRMS rule. <br /> DRMS is open to meeting with Climax if it would be useful to help resolve any of the issues listed above. <br /> If you have any questions,please contact me at(303) 866-3567 x8140. <br /> Sincerely, <br /> // <br /> Eric Scott <br /> Environmental Protection Specialist <br />