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City of Pleasanton—Hidden Canyon Residences and Preserve Draft EIR Air Quality FirstCarbon Solutions 3.2-29 https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480016/EIR/3 - Draft EIR/21480016 Sec03-02 Air Quality.docx Table 3.2-4: Construction Emissions by Construction Year Construction by Year Criteria Pollutant Emissions (tons) ROG NOX PM10 (Exhaust) PM2.5 (Exhaust) Construction–2026 0.19 2.34 0.07 0.06 Construction–2027 0.93 1.30 0.05 0.04 Construction–2028 0.00 0.2 0.00 0.00 Total Emissions (tons) 1.12 3.66 0.12 0.11 Total Emissions (lbs) 2,234.80 7,311.70 240.62 215.42 Average Daily Emissions (lbs/day) 3.87 12.67 0.42 0.37 BAAQMD Significance Thresholds 54 54 82 54 Significant Impact? No No No No Notes: BAAQMD = Bay Area Air Quality Management District lbs = pounds NOX = nitrogen oxides PM10 = particulate matter less than 10 microns in diameter PM2.5 = particulate matter less than 2.5 microns in diameter ROG = reactive organic gases This analysis relies on a 577-day construction schedule, consistent with the construction schedule and modeling results contained in Appendix B. Some construction activities may overlap. The analysis includes dust-reduction measures. Tree removal is included in the demolition phase. The average daily emissions are calculated using 577 construction working days for the proposed project. Source: Appendix B. As discussed above, the proposed project’s construction emissions would not exceed any of the applicable significance thresholds (with implementation of IM AIR-1). Therefore, the proposed project would have a less than significant impact related to air quality during project construction. Operation Following project construction, long-term operational emissions would be generated from daily operations. Operational emissions would include area, stationary, and mobile sources. Area sources would include emissions from architectural coatings, consumer products, and landscape equipment and the combustion of natural gas for water heaters and other heat sources. Mobile sources include exhaust and road dust emissions from the automobiles that would travel to and from the proposed project site. Stationary sources include emissions from stationary source equipment, such as backup generators, which would require a permit issued by the BAAQMD. However, the applicant proposes to construct 30 single-family homes, which would not require the use or implementation of backup generators. The BAAQMD developed screening criteria for criteria air pollutants and precursors. These screening criteria provide lead agencies with a conservative indication of whether implementing a proposed