SU0014056 - Laserfiche WebLink

Home Browse Search

TABLE 3-2 SJVAPCD SIGNIFICANCE THRESHOLDS AND PROJECT AIR POLLUTANT EMISSIONS ROG NO. CO SOX PM10 PM2.5 Significance Thresholds(tons/year)' 10 10 100 27 15 15 Construction Emissions (tons/year)2 1.25 1.98 2.12 <0.01 0.15 0.09 Exceeds threshold? No No No No No No With Rule 9510 application 1.58 0.10 Operational Emissions(tons/year)' 2.48 1.73 9.82 0.02 2.11 0.60 Exceeds threshold? No No No No No No With Rule 9510 application 1.15 1.05 'Applies to both construction and operational emissions. Z Maximum emissions in a calendar year. 3 Annual emissions. Sources: CaIEEMod Version 2020.4.0,SJVAPCD 2015. As indicated in Table 3-2, both project construction and operational emissions would be substantially below the significance thresholds established by SJVAPCD for criteria pollutant emissions. As the significance thresholds were established in part to ensure consistency with the objectives of air quality attainment plans adopted by the SJVAPCD, project emissions would be consistent with these plans. While project emissions would not be significant, the project would still be required to comply with applicable SJVAPCD rules and regulations, which would further reduce potential air quality impacts. As noted, SJVAPCD Regulation VIII contains measures to reduce fugitive dust emissions during construction. Dust control provisions are also routinely included in site improvement plans and specifications, along with construction contracts. In addition, the NOx and PMlo construction and operational emission reduction requirements of SJVAPCD Rule 9510 would apply. Table 3-2 shows the estimated emissions that would result from compliance with Rule 9510 requirements. Under Rule 9510, an Air Impact Assessment application detailing how the required reductions would be achieved shall be submitted by the project applicant no later than applying for a final discretionary approval with the County. Compliance with Rule 9510 and dust control requirements would further reduce project impacts related to air quality plans that are already less than significant. b) Cumulative Emissions. As noted in a) above, project operational emissions would not exceed SJVAPCD significance thresholds. Future attainment of federal and State ambient air quality standards is a function of successful implementation of the SJVAPCD's attainment plans. Consequently, the application of significance thresholds for criteria pollutants is relevant Pock Lane Public Review Draft IS/MND 3-10 May 2022