ARCHIVED REPORTS_DRAFT ENVIRONMENTAL IMPACT REPORT

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Table 4.3-4 Odor Complaints to WQCF-2001-2005 Period and Year Number Comments May–June 2001 5 1 call may have been WQCF source March–October 2002 14 9 of 14 calls were likely WQCF source May–September 2003 17 11 of 17 calls were likely WQCF source; 8 calls from a short period in June January–July 2004 5 1 call likely WQCF source April–July 2005 3 2 calls WQCF source Source:City of Manteca 2006 REGULATORY SETTING Air quality within San Joaquin County is regulated by EPA,ARB, SJVAPCD, San Joaquin County, and the City of Manteca. Each of these agencies develops rules,regulations,policies, and/or goals to comply with applicable legislation. Although EPA regulations may not be superseded,both state and local regulations may be more stringent. Federal Plans, Policies, Regulations, and Laws At the federal level, EPA has been charged with implementing national air quality programs. EPA's air quality mandates are drawn primarily from the federal Clean Air Act(CAA),which was enacted in 1970. The most recent major amendments made by Congress were in 1990. The CAA required EPA to establish NAAQS. As shown in Table 4.3-2,EPA has established primary and secondary NAAQS for the following criteria air pollutants: ozone, CO,NO2, SO2,PM10,PM2.5, and lead. The primary standards protect the public health and the secondary standards protect public welfare. The CAA also required each state to prepare an air quality control plan referred to as a State Implementation Plan(SIP). The federal Clean Air Act Amendments of 1990(CAAA) added requirements for states with nonattainment areas to revise their SIPS to incorporate additional control measures to reduce air pollution. The SIP is modified periodically to reflect the latest emissions inventories,planning documents, and rules and regulations of the air basins as reported by their jurisdictional agencies. EPA must review all state SIPS to determine whether they conform to the mandates of the CAA and the amendments thereof, and to determine whether implementing them will achieve air quality goals. If EPA determines a SIP to be inadequate, a Federal Implementation Plan(FIP)that imposes additional control measures may be prepared for the nonattainment area. Failure to submit an approvable SIP or to implement the plan within the mandated time frame may cause sanctions to be applied to transportation funding and stationary air pollution sources in the air basin. State Plans, Policies, Regulations, and Laws ARB is the agency responsible for coordination and oversight of state and local air pollution control programs in California and for implementing the California Clean Air Act(CCAA). The CCAA,which was adopted in 1988, required ARB to establish CAAQS (Table 4.3-2). ARB has established CAAQS for sulfates,hydrogen sulfide, vinyl chloride,visibility-reducing particulate matter, and the above-mentioned criteria air pollutants. In most cases the CAAQS are more stringent than the NAAQS. Differences in the standards are generally explained by the health effects studies considered during the standard-setting process and the interpretation of the studies. In addition,the CAAQS incorporate a margin of safety to protect sensitive individuals. Manteca WQCF and Collection System Master Plans EIR EDAW City of Manteca 4.3-11 Air Quality