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SANTA ANA REZONE PROJECT <br />INITIAL STUDY/MITIGATED NEGATIVE DECLARATION <br />Table 1: Maximum Daily Construction Emissions <br />Regional Pollutant Emissions (pounds per day) <br />Construction Emissions <br />VOC <br />NOx <br />CO <br />sox <br />PM10 <br />PM2.5 <br />Maximum Daily Emissions <br />4.88 <br />29.69 <br />23.61 <br />0.08 <br />8.76 <br />2.33 <br />SCAQMD Significance Threshold <br />75 <br />100 <br />550 <br />150 <br />150 <br />55 <br />Exceed Threshold? <br />No <br />No <br />No <br />No <br />No <br />No <br />Notes: <br />CO = carbon monoxide <br />NOx= nitrogen oxides <br />PM10 = particulate matter less than 10 microns in diameter <br />PM2.5 = particulate matter less than 2.5 microns in diameter <br />SCAQMD = South Coast Air Quality Management District <br />SOx = sulfur oxides <br />VOC = volatile organic compounds <br />The PM10 and PM2.5 emissions reflect the combined exhaust and fugitive dust emissions with dust control measures from <br />SCAQMD Rule 403. <br />Source: Appendix A. <br />As shown in Table 1, the combined construction emissions from all components of the proposed <br />project would be below the recommended thresholds of significance. Therefore, project construction <br />would result in a less than significant impact. <br />Operational Emissions <br />The proposed project would generate operational emissions principally from vehicle traffic accessing <br />the site. The proposed project's trip generation during operation is taken from Urban Crossroads' <br />Santa Ana Rezone Trip Generation Assessment (Appendix E). For conservative analysis, the <br />project's vehicle fleet mix has not been adjusted to reflect that the majority of vehicles accessing the <br />EV charging station portion of the proposed project would be electric vehicles that would not generate <br />emissions. The following analysis relates to localized and regional criteria pollutant impacts. <br />Emissions resulting from various aspects of the proposed project are discussed separately below. <br />The proposed project's maximum daily operations emissions are shown and compared with the <br />significance thresholds in Table 2. <br />FCS 31 <br />Https://adecinnovations.sharepoint.com/sites/PubiicationsSite/Shared Documents/Publications/Client(PN-JN)/D327/03270D47/ISMND/0327D047 Santa Ana Rezone Project ISMND.docx <br />