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Appendix G <br />Air Quality Analysis Modeling Report <br />Table 3-7 <br />MAXIMUM AERMOD PREDICTED IMPACTS FROM PHASE 3 (PRODUCTION)1 <br /> Maximum Maximum <br /> Averaging <br />Predicted Background Predicted + Primary <br />CAAQS <br />Pollutant <br />Period <br />Concentration Concentration <br />s s Background <br />b NAAQS <br />s s <br />(µg/m ) <br /> ~µg~m3) (µg/m) Concentration <br />3 (µg/m ) <br /> ~µg~m <br />) <br />NOz z Atmual 7.59 34 41.59 100 100 <br /> <br />CO 1-Hour 87.97 6,869 6,956.97 10,000 10,000 <br /> <br /> 8-Hour 19.27 4,579 4,598.27 40,000 40,000 <br /> Annual 0.003 11 11.003 80 80 <br />SOz 3-Hour 0.05 110 110.05 365 365 <br /> 24-Hour 0.01 39 39.01 1,300 700 <br /> Annual 1.84 24 25.84 NA 50 <br />PM <br />Io <br /> 24-Hour 8.06 54 62.06 150 150 <br /> Annual 0.81 9 9.81 15 15 <br />PM <br />z.s <br /> 24-Hour 2.78 22 24.78 35 35 <br />Notes <br />1. Area Source 1 included in analysis. <br />2. Assumes 100 percent conversion of modeled NOX to NO,. <br />3. Background concentrations derived from: <br />PMio - Rifle, Garfield County. (1998-2000 data collected by CDPHE) <br />PMz.; -- Grand Junction, Mesa County. (1999-2004 data collected by CDPHE) <br />SOz. - Colorado College, Colorado Springs, El Paso County. (1998-2000) -recommended by Nancy Chick (CDPHE) <br />for use in the Vernal and Glenwood Springs Resource Management Plans. <br />NOz - Woodmen and Colorado College stations, Colorado Springs, El Paso County (1998-2000 data) <br />CO = Cnand Junction, Mesa County. (Average of 2001-2004) <br />G-14 <br />DBMS 526 <br />