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AIR POLLUTION CONTROL DIVISION <br />COLORADO DEPARTMENT OF HEALTH <br />PRELIMINARY ANALYSIS <br />Page 1 of ~ <br />PERMIT NUMBER C- 13,004(1-4) gpplicant's Name Western Slope Carbon <br />Date 10-20-80 Review EngineerScott J. ifiller [ontrol Engineer - <br />hind erosion: <br />EF = 0.05 ( s ) (D ) ( d ) (f ) <br />(1.5)(90)(235)(25) <br />s = silt content = 5`/, (assumed) <br />D = duration of storage = 30 days (assumed) <br />d = dry days per year = 280 (assumed) <br />• f = % of time wind exceeds 12 mph = 15% (assumed) <br />EF = 0.04 lb/ton <br />Q = (0.04 lb /ton)(25,000 TP1') = 0.5 TP1 (no controls) <br />2000 lb/ton <br />Lnadin and Loadout: <br />Q = (2)(0.002 lb/ton)(?5,000 TPY) = 0.05 TP7' <br />2000 lb/ton <br />• <br />AP[-73 (5-76) <br />