ARCHIVED REPORTS LEC APPLICATION FOR CERTIFICATION

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5.1 AIR QUALITY TABLE 5.1-31 PSD Class II Increments Pollutant Averaging Period Allowable Increment(µg/m3) Not to be exceeded bNot to be exceeded more than once per year. Protection of Class I Areas The potential increase in ambient air quality concentrations for attainment pollutants (i.e.,NO2,PM10,or SO2) within Class I areas closer than approximately 100 km may need to be quantified if the new or modified PSD source were to have a sufficiently large emission increase as evaluated by the Class I area Federal Land Managers. In such a case,a Class I visibility impact analysis would also be performed. Growth,Visibility, Soils,and Vegetation Impacts Impairment to visibility, soils, and vegetation resulting from PSD source emissions as well as associated commercial,residential,industrial, and other growth must be analyzed. This analysis includes cumulative impacts to local ambient air quality. Administering Agency;EPA,Region 9. Nonattainment New Source Review Authority: Clean Air Act§171-193,42 USC§7501 et seq.;40 CFR Parts 51 and 52 Purpose:Requires pre-construction review and permitting of new or modified major stationary sources of air pollution to allow industrial growth without interfering with the attainment and maintenance of ambient quality standards. In general,this program is implemented at the local level with EPA oversight. EPA recently promulgated new source review requirements for major sources of PM2.5 for nonattainment areas that do not have federally approved SIPS, and EPA is responsible for implementing these requirements (see 73 FR 28231;May 16,2008). Because the LEC is not a major source of PM2.5 (i.e.,the facility has a maximum potential to emit of less than 100 tons per year of PM2.5),the facility is not subject to federal new source review requirements for PM2.5. Administering Agency:SJVAPCD,with EPA Region 9 oversight. Title IV-Acid Rain Program Authority: Clean Air Act§401,42 USC§7651 et seq.;40 CFR Part 72 Purpose:Requires the monitoring and reporting of emissions of acidic compounds and their precursors. The principal source of these compounds is the combustion of fossil fuels. Therefore,Title IV established national standards to monitor,record, and,in some cases, limit SO2 and NOx emissions from electrical power generating facilities. These standards are implemented at the local level with federal oversight. Administering Agency:SJVAPCD,with EPA Region 9 oversight. Title V- Operating Permits Program Authority: Clean Air Act§501 (Title V),42 USC §7661;40 CFR Part 70 5.1-46 SAC/371322/082410013(LEC_5.1_AIR_QUALITY.DOC)