2014-028 - Approving General Plan Amendement No. 2014-01

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City of Santa Ana -Park View at Town and Country Manor Draft EIR Criterion 4. Impacts to Air Quality from Climate Change AB 32 indicates that "the potential effects of global warming include the exacerbation of air quality problems, a reduction in the quality and supply of water to the State from the Sierra snow pack, a rise in sea levels resulting in the displacement of thousands of coastal businesses and residences, damage to marine ecosystems and the natural environment, and an increase in the incidence of infections, disease, asthma, and other health - related problems." Higher temperatures resulting from climate change are expected to increase the frequency, duration, and intensity of conditions conducive to air pollution formation. For example, if temperatures rise to the medium warming range, there will be 75 to 85 percent more days with weather conducive to ozone formation in Los Angeles and the San Joaquin Valley, relative to today's conditions. This is more than twice the increase expected if the rise in temperature is kept in the lower warming range. Air quality could be further compromised by increases in wildfires, which emit fine particulate matter that can travel long distances depending on wind conditions. The most recent analysis suggests that if heat - trapping gas emissions are not significantly reduced, large wildfires could become up to 55 percent more frequent toward the end of the century. The project will not significantly contribute to this impact during operation because the project does not contribute to a cumulative ozone impact during operation. Additionally, according to the analysis contained in Section 4.8 of this FIR, Climate Change, project emissions of greenhouse gases are less than significant after mitigation. During construction, the project may cumulatively contribute to an ozone impact; therefore, mitigation measures are required. Level of Significance Before Mitigation Potentially significant. Mitigation Measures Mitigation Measures AQ -1, AQ -2, AQ -3, and AQ -4 are required. Level of Significance After Mitigation Less than significant. Sensitive Receptors Impact 4.2 -7 The project would expose sensitive receptors to substantial pollutant concentrations. [CEQA Air Quality Threshold 3(d)] Impact Analysis Construction The localized construction analysis uses thresholds that represent the maximum emissions for a project that would not cause or contribute to an exceedance of the most stringent applicable federal or 4.2 -28 Michael Brandman Associates H\Cl t(PN- Rnb327b327W3MMVB270030 Sec 2AvQ ity.D