Laserfiche WebLink
MMRR Quarry, M-2004-067 <br />Response to June 30 Adequacy Review (as amended) <br />August 19, 2005 <br />Page 10 <br />Further discussion of this comment is included in the attached report authored by <br />Paul Banks. <br />25. Stricken from further DMG consideration <br />This June 30th adequacy comment was determined to be outside the scope of <br />DMG jurisdiction. <br />26. The applicant has committed to monitor for the presence of uranium in runoff from the site. <br />The Division believes that it is appropriate to monitor for radioactivity is sediment ponds or other <br />on-site holding structures because these can act as recharge structures to groundwater. Please <br />respond to this concern. In addition, please provide a sampling protocol and operational <br />measures to ensure that CDPHE surface water standards will not be violated. The Division <br />recommends that you contact the CDPHE for guidance concerning surtace water standards <br />specific to your proposed operation and then submit to the Division for its review an acceptable <br />surface and groundwater monitoring plan for radioactivity. <br />Please see the attached report submitted by Paul Banks. <br />27. The applicant has proposed to monitor particulate and dissolved uranium in all waters <br />concentrated on the site at a point of discharge for compliance with the radioactivity standard of <br />40 pCi/L or natural background, whichever is higher. Please verify that the 40 pCi/L or natural <br />background concentration is a monitoring standard acceptable to CDPHE. Also, please explain <br />how the natural background and operational pCi/L levels will be determined, sampled, and <br />reported? Finally, please provide the Division with a mitigation plan that will be implemented in <br />the event the proposed standard is exceeded. The Division recommends that you contact the <br />CDPHE for guidance on development of an appropriate mitigation plan. <br />Please see the attached report submitted by Paul Banks. <br />28. The applicant has discussed a variety of mitigation measures including pre-moistening of rock <br />and other dust suppression technique. Please verify if the applicant will be storing toxic and/or <br />hazardous materials on site that will be used as a mitigation measure. If so, please explain the <br />storage and control methods to be used. <br />Please see the attached report submitted by Paul Banks. <br />29. Stricken from further DMG consideration. <br />This June 30'h adequacy comment was determined to be outside the scope of <br />DMG jurisdiction. <br />30. The applicant has stated that a `preliminary geologic assessment prior to operations will <br />provide (no] useful answers regarding the potential effect of mining on any mineralized uranium." <br />Please respond why it will not be necessary for the applicant to collect, at a minimum, a one-time <br />representative sampling of ambient background radiation levels from the rocks at the site. <br />Please see the attached report submitted by Paul Banks <br />