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architectural coatings) and PM2.5 emissions from each of the two evaporative cooling towers were also included. Based on BAAQMD construction period thresholds of significance, Illingworth & Rodkin (p. 19) determined that “the predicted average daily project construction emissions would not exceed the BAAQMD significance thresholds during any year of construction.” The analysis also included estimated emissions from operational activities and used CalEEMod to estimate emissions from proposed operations, assuming full build-out. The analysis (pp. 21-23) estimated project operation emissions using information provided by the applicant regarding vehicle trips for future employees (with conservative vehicle model years used to reflect a more conservative emissions estimate); the diesel-powered emergency generator; the two project component evaporative cooling towers; and evaporative emissions from architectural coatings and maintenance products (e.g., consumer products). Other inputs included emissions associated with solid waste generation, water use/wastewater generation, and existing uses (to take into account the existing emissions produced on the site). Illingworth & Rodkin (pp. 23-24) determined the daily emissions during project operation of reactive organic gases (ROG), nitrogen oxides (NOX), and total particulate matter (PM10 with particles having a diameter of 10 micrometers or less and PM2.5 with particles having a diameter of 2.5 micrometers or less). Based on BAAQMD operational thresholds of significance, the analysis concluded, assuming year-round operations (e.g., 365 days of operation), “The operational period emissions would not exceed the BAAQMD significance thresholds.” Because 1900 Broadway project component would not exceed the construction and operational criterial air pollutant significance thresholds established by BAAQMD, the project component would result in less than significant impacts and emission reduction measures in Mitigation Measure AQ-2b would not be required. For the reasons above, 1900 Broadway project component would not result in significant impacts that were not identified in the EIR/SEIR and no additional mitigation measures would be required. Therefore, the 1900 Broadway project component would be consistent with the analysis within the EIR/SEIR because it would not create new impacts or increase impacts, and there is no new information of substantial importance for CEQA purposes. Potential for Cumulative Impacts Impacts associated with the two project components were evaluated by Illingworth & Rodkin in a combined analysis of project component emissions for both the 1900 Broadway and the 847 Woodside Road project components (“1900 Broadway & 847 Woodside Road Combined Construction & Operational Emissions;” Memo from Illingworth & Rodkin, Inc. to Melinda Hue, City of Redwood City; June 11, 2024). The memo assessed the combined construction and operational emissions of both project components. Based on the anticipated construction schedule for 1900 Broadway to start in 2025 and end in 2028 and 847 Woodside Road to start in 2026 and end in 2028, Illingworth & Rodkin (p. 1) concluded that the two construction schedules would overlap for the years 2026 and 2027 and portions of 2028, resulting in simultaneous construction emissions. Illingworth & Rodkin used CalEEMod to estimate emissions from construction activity and operation for each project. The land use types and size, anticipated construction schedule, traffic, and other factors were input to CalEEMod for each project component as described above for the 1900 Broadway project component and below for the 847 Woodside Road in item (b) – 847 Woodside Road. For construction emissions, Illingworth & Rodkin (pp. 1-2) determined that the combined construction period emissions do not exceed the BAAQMD thresholds of significance during any construction year (2025-2028). For operational emissions, Illingworth & Rodkin (p. 2) based its analysis on net increase in annual emissions and daily emissions, assuming 365 days of operation. The analysis determined that net increases in annual and daily operational emissions of ROG, NOX, total PM10, and total PM2.5 during operation of both projects would not exceed the BAAQMD thresholds of significance. The combined construction and operational impacts of both project components would be considered less than significant resulting in a less than significant cumulative impact, and no additional mitigations would be required. As previously discussed, the SEIR determined significant and unavoidable impacts to air quality with mitigation. However, the 1900 Broadway project component, after implementation of Mitigation Measure AQ-2a, would be considered less than significant, and no additional mitigations would be required. Therefore, the 1900 Project would be consistent with the analysis within the EIR/SEIR because it would not create new impacts or increase impacts, and there is no new information of substantial importance for CEQA purposes. c. The DTPP program EIR (p. 12-20) analyzed the impact of existing sources of TAC emissions in Redwood City on future receptors that would be introduced to the area by the DTPP. It was found to be potentially significant and included Mitigation Measure 12-1 to reduce impacts to less than significant. However, as the DTPP Plan-Wide Amendments program SEIR states, CEQA no longer requires the analysis of the impact of the environment on the project pursuant to the California Supreme Court decision in California Building Industry Association v. Bay Area Air ATTY/RESO.0070/CC RESO 1900 BROADWAY (CEQA) - EXHIBIT 1 - CEQA CONSISTENCY CHECK LIST REV: 10-23-24 VR Page 33 of 135