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<br />4.7 AIR POLLUTION CONTROL PLAN <br />Trapper Mine holds four separate emissions permits issued by the Colorado Air Pollution Control Division <br />(APCD) for various mining activities (Section 2.2). As a condition for the emission permit for mining (C•11, <br />253(1)), Trapper Mine did operate one hi-volume air sampler to monitor total suspended particulate (TSP) <br />levels in accordance with APCD requirements. Two other monitoring stations, one maintained by Empire <br />Energy Corporation and the other by Colorado-ute Electric Association are near the proposed permit area. <br />While Trapper does not maintain or operate these two stations, the resulting data are available to the APCD <br />for a total evaluation of TSP levels in the area. Locations of these air samplers are illustrated in Map M-15. <br />4.7.1 Monitoring Program <br />One air monitoring station, P-5, was maintained by Trapper Mine personnel as required by the APCD. The <br />station was monitored in conformance with APCD standards of one sample per week of 24-hour duration. <br />A Misco 680 high-volume air sampler was used to obtain total suspended particulate data with the results <br />being tabulated by Trapper personnel. On June 30, 1988, the APCD terminated the requirement that <br />Trapper continue this ambient particulate air monitoring program. Figure 4.7-1 presents the letter of <br />authorization from APCD. <br />4.7.2 Fugitive Dust Control Measures <br />Mining and associated activities are sources of fugitive dust emissions. Fugitive dust emission control <br />methods used at Trapper Mine are described in this section. <br />4-170 <br />REVISED JUL L i ~gg <br />