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Environmental Assessment <br />Bowie Resources, L.L.C. <br />A ugust 2005 Sp Stomp Fed Coa E xplora t i o n Li (150- 2005 -4 3) <br />Table 3 -1— Ambient Air Quality Standards <br />Pollutant <br />EPA <br />Colorado <br />Primary <br />Secondary <br />Proposed Fine Particulate Matter (PM 2 , 5 ) (µg/m <br />Annual arithmetic average <br />15 <br />15 <br />15 <br />24 -hour average <br />65 <br />65 <br />65 <br />Fine Particulate Matter (PMio) (pWni ) <br />Annual arithmetic average <br />50 <br />So <br />50 <br />24 -hour average <br />150 <br />150 <br />150 <br />Carbon Monoxide (pWrn ) <br />8 -hour average <br />10,000 <br />10,000 <br />10 <br />1 -hour average <br />40,000 <br />40,000 <br />40,000 <br />Ozone (ppm) <br />8 -hour average (proposed) <br />0.08 <br />0.08 <br />None <br />1 -hour average <br />0.12 <br />0.12 <br />0.12 <br />Sulfur Dioxide (pg/m <br />Annual average <br />80 <br />None <br />None <br />24 -hour average <br />365 <br />None <br />None <br />3 -hour average <br />None <br />1300 <br />700 <br />Lead (Wra ) <br />Calendar quarter average <br />1.5 <br />None <br />1.5 (Monthly <br />Avg.) <br />Nitrogen Dioxide (ppm) <br />Annual average <br />0.053 <br />0.053 T <br />0.05 <br />Source: 40 CFR Part 50 <br />The Paonia - Somerset area of the North Fork of the Gunnison River has been designated as a <br />Prevention of Significant Deterioration (PSD) Class II area. A Class II area is an area in which <br />development and pollutant emissions may occur as long as the AAQS are maintained. BRL <br />activities as described in the Proposed Action are not subject to PSD permitting requirements, <br />since it does not generate sufficient non - fugitive (stack) emissions to trigger the PSD permit <br />3 -4 <br />