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City of Santa Ana <br />Environmental Checklist <br />Pollutant Standards 2008 2009 2010 <br />Maximum State 24 -Hour Concentration <br />61.0 <br />62.0 <br />43.0 <br />Maximum National 24 -How- Concentration <br />111.5 <br />97.4 <br />43.0 <br />Days Exceeding State Standard <br />3 <br />1 <br />0 <br />Days Exceeding National Standard <br />0 <br />0 <br />0 <br />Suspended Particulates (PM2.5) <br />National Standard (24-Hour Average = 35 pcg /m3) <br />Maximum 24 -Hour Concentration <br />67.8 <br />64.5 <br />31.7 <br />Days Exceeding National Standard <br />5 <br />5 <br />0 <br />Notes: <br />ppn1= parts per million <br />µg /m3 = microgram per cubic meter <br />Source: ARB 2012. <br />Sensitive Receptors and Locations <br />Some population groups, such as children, the elderly, and acutely and chronically ill persons, <br />especially those with cardio- respiratory diseases, are considered more sensitive to air pollution <br />than others. Sensitive receptors in the vicinity of the project include residential land uses located on <br />three sides of the project site and the St. Edna Subacute and Rehabilitation Center adjacent to the <br />north of the project site. <br />Regulatory Setting <br />Federal <br />Federal Clean Air Act <br />The Clean Air Act (CAA) was first enacted in 1963 and has been amended numerous times in <br />subsequent years (1967, 1970, 1977, and 1990). The CAA establishes the National Ambient Air <br />Quality Standards ( NAAQS) and specifies future dates for achieving compliance. The CAA also <br />mandates that the state submit and implement a State Implementation Plan (SIP) for local areas not <br />meeting those standards. The plans must include pollution control measures that demonstrate how <br />the standards will be met. Because the City of Santa Ana is within the Basin, it is in an area <br />designated as nonattainment for certain pollutants that are regulated under the CAA. <br />The 1990 amendments to the CAA identify specific emission- reduction goals for areas not meeting <br />the NAAQS. These amendments require both a demonstration of reasonable further progress toward <br />attainment and incorporation of additional sanctions for failure to attain or meet interim milestones. <br />The sections of the CAA that would most substantially affect the development of the proposed <br />project include Title 1 (Nonattainment Provisions) and Title 11 (Mobile- Source Provisions). <br />Title I provisions were established with tite goal of attaining the NAAQS for criteria pollutants. Table <br />3 -2 shows the NAAQS currently in effect for each criteria pollutant. The NAAQS were amended in <br />July 1997 to include an 8 -hour standard for 03 and adopt a standard for PM2.5. The Basin (Orange <br />County portion) fails to meet national standards for 03, PM10, and PM2.5 and therefore is <br />The Academy Charter High School 3 -16 June 2012 <br />Initial Study /Mitigated Negative Declaration [CF 00914.11 <br />• V� <br />