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Table 11 <br />Reaional and Localized Operational Emissions <br />Emissions Source <br />Emissions in Ibs per day <br />VOC <br />NO. <br />CO <br />SO,, <br />PM,o <br />P11112.5 <br />Area Sources <br />28.6 <br />0.6 <br />45.2 <br /><0.1 <br />0.1 <br />0.1 <br />Energy Sources <br />0.1 <br />1.7 <br />0.8 <br /><0.1 <br />0.1 <br />0.1 <br />Mobile Sources <br />8.5 <br />6.3 <br />74.9 <br />0.2 <br />19.6 <br />5.1 <br />Less Existing Emissions <br />(12.3) <br />(7.0) <br />(71.4) <br />(0.2) <br />(13.5) <br />(3.6) <br />Net Regional Total <br />24.9 <br />1.6 <br />49.6 <br /><0.1 <br />6.3 <br />1.6 <br />Regional Significance Threshold <br />55 <br />55 <br />550 <br />150 <br />150 <br />55 <br />Exceed Threshold? <br />No <br />No <br />No <br />No <br />No <br />No <br />Net Localized Total <br />28.7 <br />2.3 <br />46.0 <br /><0.1 <br />0.2 <br />0.2 <br />Localized Significance Threshold <br />N/A <br />183 <br />1,253 <br />N/A <br />3 <br />2 <br />Exceed Threshold? <br />N/A <br />No <br />No <br />N/A <br />No <br />No <br />LST analyses based on five -acre site with 25-meter distances to receptors in Central Orange County <br />SRA. <br />Source: DKA Planning, 2023, based on CalEEMod 2022.1.1.14 model runs (refer to Attachment A). <br />Totals reflect the summer season maximum and may not add up due to rounding. <br />Expose Sensitive Receptors <br />Sensitive receptors in the vicinity of the Project Site include the following: <br />• Cabrillo Park, 1820 East Fruit Street; directly north of the Project Site. <br />• Residences, 724 North Parkcenter Drive; 80 feet northeast of the Project Site <br />• Residences, 618 Sherry Lane; 400 feet west of the Project Site. <br />• Residences, 1901 East First Street; 450 feet south of the Project Site. <br />Construction Emissions <br />Construction of the Project could expose sensitive receptors to substantial pollutant concentrations if <br />maximum daily emissions of regulated pollutants generated by sources located on and/or near the <br />Project Site exceeded the applicable localized significance threshold (LST) values, or if construction <br />activities generated significant emissions of TACs that could result in carcinogenic risks or non - <br />carcinogenic hazards exceeding the SCAQMD Air Quality Significance Thresholds of 10 excess <br />cancers per million or non -carcinogenic Hazard Index greater than 1.0, respectively. As discussed <br />above, the LST values were derived by the SCAQMD for the criteria pollutants NOx, CO, PM,o, and <br />PM2.5 to prevent the occurrence of concentrations exceeding the air quality standards at sensitive <br />receptor locations based on proximity and construction site size. <br />As shown in Table 10, during construction of the Project, maximum daily localized unmitigated <br />emissions of NO2, CO, PM,o, and PM2.5 from sources on the Project Site would remain far below <br />each of the respective LST values. Daily localized emissions would not exceed any of the <br />Cabrillo Town Center City of Santa Ana <br />Technical Memorandum August 2023 <br />City Council 18 - 513 10/3/2023 <br />