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CHAPTERFOUR <br />Environmental I:onsequences <br />The same assumptions for the Accelerated Development Alternative indicate a potential <br />exceedance of the Class II increments for both PMta and NO> would occur neaz the Piceance <br />Site. Accelerated Development Alternative at the Pazachute site would also res~ilt in an <br />exceedance of the Class II increments for PMto. A comparison of estimated ma~:imum ground <br />level impacts to the Class II increments is presented in Tables 4.5-] 0 and 4.5-1 I <br />TABLE 4.5-10 <br />ACCELERATED DEVELOPMENT ALTERNATIVE -CLASS II INCREMENT <br />ANALYSIS FOR PICEANCE SITE <br />Increment Concentration (µg/m~) <br />Percent of Class II Increment (%) 206 125 170 <br />Maximum Cumulative increment 70.3 22.1 46.2 <br />Concentration (µg/m') <br />Percent of Class II Increment (%) 234 130 185 <br />Source: RTP 1998a <br />TABLE 4.5-11 <br />ACCELERATED DEVELOPMENT ALTERNATIVE -CLASS II INUREMENT <br />ANALYSIS FOR PARACHUTE SITE <br />Increment Concentration (µg/m3) <br />Percent of Class II Increment (%) 206 94 42 <br />Maximum Cumulative Increment 61.8 16.8 18.9 <br />Concentration (µg/m') <br />Source: RTP 1998b <br />4.5.2.3 No Action Alternative <br />The No Action Alternative would result in no direct impacts to air quality. <br />4-32 Meteorology and Air Quality <br />1 <br />