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II. Agricultural Resources <br />a) Would the project convert Prime Farmland, Unique Farmland or Farmland of Statewide Importance <br />(Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring <br />Program of the California Resources Agency, to non-agricultural use? <br />b) Would the project conflict with existing zoningfor agricultural use, or a Williamson Contract? <br />c) Would the project involve other changes in the existing environment which, due to their location or <br />nature, could result in conversion of Farmland to non-agricultural use? <br />The FEIR Initial Study determined that, because the project site did not include agricultural resources <br />or conflict with zoning for agricultural uses, no impact would occur and no further analysis was <br />required. The project is located in a substantially built-out area of Santa Ana. No new or more severe <br />impacts will occur, and the FEIR remains adequate and complete. <br />III. Air Quality <br />The Air Quality analysis in the FEIR was based on CEQA Guidelines thresholds. An updated Air Quality <br />Assessment (Air Quality Assessment) dated January 27, 2011 was prepared by KPC Environmental, Inc. The <br />analysis focused on the addition of the parking garage structure, which was not part of the original project <br />design, and an increase in residential units from 276 to 300. The Air Quality Assessment in its entirety is <br />included herein as Appendix A. Since the certification of the FEIR, additional legislation requires the <br />analysis of potential greenhouse gas (GHG) impacts due to development. Greenhouse Gas Emissions are <br />discussed in Section VII below. <br />The Air Quality Assessment was based on the South Coast Air Quality Management District (SCAQMD) <br />CEQA Air Quality Handbook, the California Air Resources Board (CARB) Preliminary Draft Report on <br />Recommended Approaches for Setting Interim Significance Thresholds for GHG under CEQA, the Bay Area <br />AQMD GHG Plan Level Quantification Guidance, and accepted environmental practices. Modeling <br />programs included Urban Emissions Model (URBEMIS 2007, 9.2.4); emissions inventory program, <br />EMFAC; and dispersion model CALINE 4. The emissions estimates reported represented a "worst-case" <br />scenario because they incorporate the assumption that construction activities occur at the peak daily levels <br />throughout the entire construction period. <br />The project is located in the South Coast Air Basin (SCAB), which is a non-attainment area for ozone, PMio, <br />and PM2.5 particulates. The 2007 Air Quality Management Plan (AQMP), developed by the SCAQMD and <br />SCAB, provides an outline to achieve reductions in emissions while increasing air quality within the SCAB. <br />The following table depicts the current criteria pollutant attainment status in the SCAB. <br />Regional Criteria Pollutant Attainment Status SCAB <br />Pollutant State Federal <br />Ozone Extreme Non-attainment Non attainment <br />PM10 Serious Non-attainment Non-attainment <br />PMz.s Non-attainment Non-attainment <br />sox Attainment Attainment <br />CO Attainment Attainment <br />NOx Attainment Attainment <br />Lead Attainment Attainment <br />Other (e.g., vinyl chloride, <br />hydrogen sulfide) Unclassified or Attainment Unclassified or Attainment <br />MacArthur Place South EIR - 2011 Addendum 20 <br />75B-65