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Summary of 2018 Spotorno Ranch Air Quality Analysis <br />March 22, 2021 <br />Page 6 <br /> <br />Construction Phase <br />Tons/Year <br />VOC NOX PM10 (Exhaust) PM2.5 (Exhaust) <br />Notes: <br />VOC = volatile organic compounds ;NOX = oxides of nitrogen <br />PM10 = particulate matter 10 microns in diameter <br />PM2.5 = particulate matter 2.5 microns in diameter <br />< = less than <br />Calculations use unrounded numbers presented in the CalEEMod output. <br />Source: CalEEMod <br /> <br />Table 2: Unmitigated Construction Criteria Air Pollutants Emissions (Average Daily Rate) <br />Parameter <br />Air Pollutants <br />VOC NOX PM10 (Exhaust) PM2.5 (Exhaust) <br />Total Emissions (total tons) 1.83 7.38 0.37 0.35 <br />Total Emissions (total lbs) 3,666 14,756 748 700 <br />Average Daily Emissions (lbs/day)2 6.38 25.66 1.30 1.22 <br />Significance Threshold (lbs/day) 54 54 82 54 <br />Exceeds Significance Threshold? No No No No <br />Notes: <br />1 Calculated by dividing the total number of pounds by the total 575 working days of construction for the duration of <br />construction (2018-2020). <br />Calculations use unrounded totals. <br />VOC = volatile organic compounds; NOX = oxides of nitrogen <br />PM10 = particulate matter 10 microns in diameter <br />PM2.5 = particulate matter 2.5 microns in diameter <br />lbs = pounds <br />Source of thresholds: BAAQMD 2017 <br />Source of emissions: CalEEMod <br /> <br />Operation <br />As previously discussed, the pollutants of concern include VOC, NOX, PM10, and PM2.5. Project <br />operational emissions were estimated using the CalEEMod model version 2016.3.2. The trip generation <br />rates are from the Spotorno Property Transportation Assessment prepared for the project by Fehr & <br />Peers (Appendix I). In order to provide a conservative estimate, 2020 was used as the operational year <br />when all units are expected to be completed and occupied. The daily operational emissions were <br />modeled for summer and winter seasons. The estimated highest daily operational results for each <br />pollutant and season are compared with the BAAQMD’s maximum daily rate operational threshold. The <br />unmitigated annual emissions from project operations are compared the BAAQMD’s annual operational <br />threshold. Both long-term operational impacts associated with criteria pollutant emissions would be less <br />than significant.