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wastewater treatment plant and its associated buildings, Clear Creak Convenience Store sewage lines and improvements, Silver Dollar Metropolitan District light poles and utility lines along Colorado Highway 119. In addition, the Applicant has committed to conducting pre-blast stuveys of potentially affected structures pursuant to Division rules, with notices and survey requests to be sent to the owners of such structures at least 30 days prior to blasting. The surveys will be completed and submitted to the Division prior to initiation ofblasting. 11. Party objectors Black Hawk/Central City Sanitation District and Silver Dollar Metropolitan District commissioned a separate blast vibration analysis prepazed by Joscphl3crnosky of Leonazd Rice Engineers, Inc. dated November 10, 2005 ("Rice Report"). The Rice Report analyzes the risk from blasting activities to the Black HawklCentral City Sanitation District's wastewater treatment plant, located across Highway 1 l9 from the proposed quarry, and the Silver Dollar Metropolitan District's lighting structures, located adjacent to Highway 119. The Rice Report concludes that these facilities are far more sensitive receptors than the residential structures used as baseline indicators in standard blasting analyses and that blasting vibrations from mining operations pose a threat to components of the wastewater treatment plant and light poles/lamps. 12. Itt a review of the Rice Report prepazed by a Division specialist on November 21, 2005, the Division concludes that there is no possibility, absent anon-compliant event, that vibration ler'els will exceed commonly acceptable levels. The Division's analysis also concludes that ifthe wastewater treatment plant and light poles aze vulnerable to damage from proposed blasting, they are much more vulnerable to ordinary daily vibrations MMRR Doard (~dcr, M-2004-067 2677