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City of Pleasanton—Villages at the Quarry Project Consistency Checklist 15183 Consistency Checklist 54 dust is binary—meaning if a project includes dust control BMPs then construction fugitive dust emissions would be less than significant, but if a project does not explicitly include dust control BMPs then construction fugitive dust emissions would be potentially significant—MM AIR-1a would be required to ensure that individual development projects facilitated by the Housing Element Update would result in less than significant construction fugitive dust impacts. As previously discussed in Impact III(a), by complying with the AQP and implementation of MM AIR-1a and -1b, operational related criteria pollutant emissions would not have an adverse effect on air quality. Therefore, the Housing Element Update FEIR concluded that, with the implementation of MM AIR-1a and 1b, a cumulatively considerable net increase of any criteria pollutant for which the project region is in nonattainment under an applicable federal or State ambient air quality standard would not occur and impacts would be less than significant. Proposed Project Analysis and Conclusion The Bay Area is considered a nonattainment area for ground level ozone (O₃) and particulate matter less than 2.5 microns in diameter (PM2.5) under both the National Ambient Air Quality Standards (NAAQS) and the California Ambient Air Quality Standards (CAAQS). The area is also considered nonattainment for particulate matter less than 10 microns in diameter (PM10) under the CAAQS, but not the NAAQS. The area has attained both State and federal ambient air quality standards for carbon monoxide (CO). As part of an effort to attain and maintain ambient air quality standards for O₃, PM₂﮳₅ and PM₁₀, BAAQMD has established thresholds of significance for these air pollutants and their precursors. The O₃ precursor pollutant thresholds are for reactive organic gases (ROG) and nitrogen oxides (NOₓ), while PM₁₀ and PM₂﮳₅ have specific thresholds. The thresholds apply to both construction period emissions and operational period emissions. Summary of Computed Construction Period Emissions Average daily emissions were annualized for each year of construction by dividing the annual construction emissions and dividing those emissions by the number of active workdays during that year. Table 1 shows the annualized average daily construction emissions of ROG, nitrogen oxides (NOX), PM₁₀ exhaust, and PM₂﮳₅ exhaust during construction of the proposed project. As indicated in Table 1, predicted annualized project construction emissions would not exceed the BAAQMD significance thresholds during any year of construction.