PERMFILE106422 - Laserfiche WebLink

Home Browse Search

other laws, it will be in violation of its permit conditions and the above statutory requttements, and the Division will procede at that time with appropriate enforcement actions. 5. Has the Applicant provided an adequate evaluation of the potential for uranium mineralization via blasting and mining activities, and demonstrated adequate safeguazds to ensure the protection of surface and groundwater resources as well as compliance with applicable federal and Colorado water quality laws and regulations, as required by Rule 3.1.6? DMG Response -The Applicant has provided a detailed monitoring, containment, and control plan to which adequately addresses the potential for adverse impacts to human health and the environment from radiation resulting from quarrying activities and to ensure the operator's compliance with all applicable Federal, State, and local regulations. The monitoring, containment, and control plan as submitted by the Applicant was prepazed via input from the Colorado Department of Health & Environment, to ensure that any radioactivity on the site is properly controlled and contained. Further, the Applicant has committed to provide written demonstration of an approved CDPS discharge permit from the Water Quality Control Division, Colorado Department of Health prior to any offsite dischazge and prior to the initiation of any blasting and quany activities at the MMRR Quarry. 6. Has the Applicant provided an adequate blast vibration analysis and blasting plan that addresses the potential for adveae offsite impacts to significant, valuable, and permanent man-made stmctures, as requued by Rule 6.4.4(1). Specifically, the Black Hawk/Central City Sanitation District's Water Treatment Plant, Convenience Store, Silver Dollaz Metro District Light Poles, and utility lines along Colorado Highway 119. DMG Response -The Applicant has provided a detailed Blasting Plan prepared by Lyman Henn, Consulting Engineers that provides an assessment of possible surface and subsurface impacts, a monitoring plan to detect the presence or absence of offsite impacts, and proposed mitigation measures that will be implemented in the event a peak particle velocity of 0.75 ips (inches per second) is detected at any structure not owned or controlled by the quarry operation, or a peak particle velocity of 0.50 ips is detected at any older structure with plaster-on lath walls that maybe within the zone of influence of quarry blast ground vibrations. The Blasting Plan assures that potential adverse impacts to the Water Treatment Plant and associated buildings, Convenience Store, Silver Dollaz Metro District Light Poles, and utility lines along Highway 119 will not occur. Further, the Division has reviewed a November 1Q 2005 Blast Vibration Analysis report prepared by Leonard Rice Engineers, Inc. on behalf of the Black HawkJCentral City Sanitation District and the Silver Dollar Metropolitan District and has concluded that the specifications agreed to by the Applicant regazding blasting procedures and mitigation measures aze adequate to meet the requirements of Rule 6.4.4 (i). 7. Has the Applicant adequately described the game and non-game resources, including threatened and endangered species, on and in the vicinity of the application area, and provided a description of the impacts to such resources during mining and reclamation, and appropriate mitigation measures, as required by Rule 6.4.8? DMG Response -The Applicant has adequately addressed all requirements specified in Rule 6.4.8. Further, the Applicant has contacted both the Colorado Division of Wildlife (CDOW) and the U.S. Fish & Wildlife Service to confum the presence or absence of threatened, endangered, or other species of concern on the site and its vicinity. There have been no written comments received from either agency which list such species and requested mitigation measures. 8. Has the Applicant provided adequate dust control and mitigation measures?