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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 <br /> (C-11, 253(1)), Trapper Mine did operate one hi-volume air sampler to monitor total suspended particu- <br /> late (TSP) levels in accordance with APCD requirements. Two other monitoring stations, one maintained <br /> by Cyprus Empire Corporation and the other by Tri-State Generation & Transmission Association, Inc. <br /> are near the proposed permit area. While Trapper does not maintain or operate these two stations, the <br /> resulting data are available to the APCD for a total evaluation of TSP levels in the area. Locations of <br /> 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. <br /> The station was monitored in accordance with APCD standards of one sample per week of 24 hour <br /> duration. A Misco 680 high-volume air sampler was used to obtain total suspended particulate data with <br /> the results being tabulated by Trapper personnel. On June 30, 1988 the APCD terminated the require- <br /> ment that Trapper continue this ambient particulate air monitoring program. Figure 4.7-1 presents the <br /> letter of 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 /> PR-3 <br /> JEVISIO P.pi- <br /> 4-170 / <br />