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wastewater treatment plant and its associated buildings, Cleaz Creek Convenience Store <br />sewage lines and improvements, Silver Dollar Metropolitan District light poles and utility <br />lines along Colorado Highway 119. Tn addition, the Applicant has committed to <br />conducting pre-blast surveys of potentially affected structures pursuant to Division rules, <br />with notices and survey requests to be sent to the owners of such structures at least 30 <br />days prior to blasting. The surveys will be completed and submitted to the Division prior <br />to initiation of blasting. <br />11. Party objectors Black Hawk/Central City Sanitation District and Silver Dollar <br />Mctropolitan District commissioned a separate blast vibration analysis prepared by <br />Joseph Bernosky of Leonard Rice Engineers, Inc. dated November 10, 2005 ("Rice <br />Report"). The Rice Report analyzes the risk from blasting activities to the Black <br />HawklCentraf City Sanitation District's wastewater treatment plant, located across <br />Highway 1 l9 from the proposed quarry, and the Silver Dollaz Metropolitan District's <br />lighting structures, located adjacent to Highway 119. The Rice Report concludes that <br />these facilities aze far more sensitive receptors than the residential structures used as <br />baseline indicators in standard blasting analyses and that blasting vibrations from mining <br />operations pose a threat [o components of the wastewater treatment plant and light <br />poles lamps. <br />12. In a review of the Rice Report prepared by a Division specialist on November 21, 2005, <br />the Division concludes that there is no possibility, absent anon-compliant event, that <br />vibration levels will exceed commonly acceptable levels. The Division's analysis also <br />concludes that if the wastewater treatment plant and light poles are vulnerable to damage <br />from proposed blasting, they are much more vulnerable to ordinary daily vibrations <br />,vIMRR Board Order, M-2004-067 <br />2677 <br />