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discharges of surface water from the quarry operation as well as protection of groundwater quality in the <br />surrounding area from blasting and other quarrying activities. In response, the applicant has proposed to monitor, <br />on a monthly or more frequent basis, for the presence of uranium in runoff from the site. Specifically, the <br />applicant's proposal includes analysis of both particulate and dissolved concentrations of uranium at the discharge <br />points of sediment ponds on the site. The applicant has proposed to monitor all waters concentrated on the site at a <br />point of discharge for compliance with a radioactivity standard of 40 pCi/L or natural background where higher. (It <br />is important to note that undisturbed runoff waters from the upland watershed will come in contact with runoff <br />waters from portions of the quarrying operation, be routed through a series of sedimentation ponds, and then <br />released offsite toward North Clear Creek). <br />The Division asks assistance in answering the following questions: <br />1, in lieu of or in addition to enforceable standards or procedures do any of the above referenced programs <br />have any radiation control guidance that is recommended for mineral development activities, including <br />blasting? If so, which programs and what is the guidance? <br />2. Has CDPHE's APCD Stationary Sources and/or Radiation Management Programs (Program) established <br />standards and/or requirements or policy recommendations regarding acceptable level: and monitoring <br />procedures for radiation in airborne particles as a result of blasting and other operations from mineral <br />development activities? If so, what are they and what procedural steps does a CMA reclamation permit <br />application need to follow to comply with them? Does either Program have established enforcement <br />procedures in this regard, and, if so, what aze they? <br />3. Does CDPHE's Water Quality Protection Section or Radiation Management Prograrri have established <br />surface water radiation standards and or monitoring protocols and/or enforcement provisions to assess or <br />control potential impacts to surface water from the blasting and other operations of mineral development <br />operations? If so, what are they and what procedural steps does a CMA mineral pernrit applicant need to <br />follow to comply with them? <br />4. Does CDPHE's Water Quality Protection Section or Radiation Program have established groundwater <br />radiation standards, monitoring protocols, and/or enforcement provisions to assess or control potential <br />impacts to groundwater from the blasting and other operations of mineral development operations. If so, <br />what are they and what procedural steps does a CMA mineral permit applicant need ro follow to comply <br />with them? <br />Because of statutory limits and our need to evaluate your response, we respectfully request a response to our <br />inquiries no later than July 31. We remain ready to meet with you at any time to discuss details, if necessary or <br />desirable. <br />If you have questions, please contact Mr. Carl Mount of DMG. Thank you for your interest and response to this <br />request. <br />Cc: Ron Cattany <br />Tom Schreiner <br />Carl Mount <br />Harry Posey <br />Steve Brown, AGO <br />