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Community Plan Exemption Checklist <br />City of Santa Ana Gary Avenue Business Park Project <br /> <br />39 <br />receptors”; they are also known to be locations where an individual can remain for 24 hours. The nearest <br />residential receptor is located approximately 2,200 feet north of the Project site. In addition, it is noted that <br />a dialysis center is 700 feet to the northeast. <br /> <br />Daily construction emissions generated onsite by the proposed Project are evaluated against SCAQMD’s <br />screening look-up tables for LSTs that have been interpolated for a 2.5-acre site as the proposed construction <br />would disturb a maximum of 2.5 acres per day during grading activities. The appropriate Source Receptor <br />Area (SRA) for the LST analysis is Central Orange County (SRA 17). <br /> <br />Although the nearest residence is approximately 2,200 feet from the Project, the Air Quality Assessment <br />provides a conservative analysis of potential LST impacts at the dialysis center, 700 feet (213 meters) from <br />the site is provided to identify maximum potential impacts. As shown in Table AQ-4, emissions resulting from <br />Project construction would not exceed thresholds of significance established by the SCAQMD for any criteria <br />pollutant. <br />Table AQ-4: Project Localized Significance Summary of Construction <br /> <br />Construction Activity <br />Nitrogen Oxide <br />(NOx) <br />Carbon <br />Monoxide <br />(CO) <br />Particulate <br />Matter (PM10) <br />Particulate <br />Matter (PM2.5) <br />Demolition (2021) 31.44 21.57 11.72 2.98 <br />Site Preparation (2021) 40.50 21.15 20.91 11.53 <br />Grading (2021) 24.74 15.86 7.89 4.32 <br />Building Construction (2021) 17.43 16.58 0.96 0.90 <br />Building Construction (2022) 15.62 16.36 0.81 0.76 <br />Paving (2022) 11.12 14.58 0.57 0.52 <br />Architectural Coating (2022) 1.41 1.81 0.08 0.08 <br />Maximum Daily Emissions 40.50 21.57 20.91 11.53 <br />SCAQMD Localized Screening <br />Threshold (adjusted for 2.5 acres at <br />213 meters) 159 3,119 76 29 <br />Exceed SCAQMD Threshold? No No No No <br />Source: Air Quality Assessment (Appendix A) <br /> <br />Table AQ-5 identifies the localized operational impacts at the nearest receptor location in the vicinity of the <br />Project. As shown in Table AQ-5, emissions resulting from Project operations would not exceed thresholds of <br />significance established by the SCAQMD for any criteria pollutant. Therefore, the Project would result in no <br />new impact related to exposure of sensitive receptors to substantial pollutant concentrations. <br /> <br />Table AQ-5: Project Localized Significance Summary of Operations <br /> <br />Activity <br />Nitrogen <br />Oxide (NOx) <br />Carbon <br />Monoxide <br />(CO) <br />Particulate <br />Matter (PM10) <br />Particulate <br />Matter (PM2.5) <br />On-Site Emissions (Area, Energy, and Off- <br />road Equipment Sources) <br />16.57 16.05 0.85 0.78 <br />SCAQMD Localized Significance <br />Threshold (5 acres at 213 meters) <br />204 4,248 23 8 <br />Exceed SCAQMD Threshold? No No No No <br />Source: Air Quality Assessment (Appendix A) <br /> <br /> <br /> <br /> <br />8/22/2022 <br />Planning Commission 2 – 78