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<br />Summary <br />' Throughout this section we have mentioned methods that limit the view of the mine. The <br />methods include the depressed level of the mine, limiting maximum disturbance to 60 acres, <br />' concurrent reclamation, 500 foot setback for mining from the lease boundary, and preserving the <br />rhyolite cliffs around the site. All these methods are intrinsic elements of the mine or the Special <br />Use application and will be carried out during the operation. <br />' The most significant aspect of the proposal limiting visual impact is the generous allocation of <br />both space and time to the mine. By having a maximum of 60 acres disturbed, only 3% of the <br />' 1,828 acre leased azea is utilized at any given time. The 100 year term of the Special Use permit <br />will make this valuable mineral resource a permanent land use similar to other residential and <br />commercial uses. This permanency will preserve its integrity and the rural integrity of the azea. <br />3.H.6 Division of Minerals and Geology <br />' CMI currently has a DMG Regular Operations Permit for the Castle Rock Quarry. Appendix 7 is <br />a copy of the application submittal. The DMG permit number is M 89-65. <br />' 3.H.7 Noise Analysis <br />' CMI's present Ditmars Quarry operation, the primary sources of noise will be the equipment at <br />the plant site and blasting normally occurring less than two times per year. As a comparative <br />source of reference, we point out that, to our knowledge, there has never been a complaint <br />t regarding noise from the Ditmars operation filed with any local agency. <br />The plant equipment will simply be transferred from the Ditmars site to the Castle Rock Quarry <br />' site. This equipment currently meets federal noise regulation standards for workers' safety. <br />Blasting procedures and frequency will remain essentially the same. <br />' In addition, noise mitigation at the Castle Rock Quarry site will be attained through a 500 foot <br />setback from the lease boundary for any mining activity, and a processing azea which will be 20 <br />to 25 feet below the adjacent surface. Noise levels at the property lines of the Winkler Cattle <br />' Company will even be below state standards for agricultural zones. <br />' Engineering Dynamics was hired to evaluate the noise level at the Ditmars operation and predict <br />the potential impact of noise at the Castle Rock Quarry. Appendix 8 contains the noise impac*. <br />report prepazed by Engineering Dynamics. <br />1 <br /> <br />1 <br />' 30 <br />