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SAN LEANDRO SHORELINE DEVELOPMENT EIR ADDENDUM PROJECT CITY OF SAN LEANDRO Measure AIR -5, impacts to new on-site residents of the Modified Project would also be less than significant with mitigation. As discussed above, incorporation of Mitigation Measure AIR -5, as prescribed in the Certified EIR would be applicable to the Modified Project and would reduce construction -related DPM emission impacts to less than significant levels. Overall, construction of the Modified Project would result in similar regional construction impacts as the Original Project and impacts would remain less than significant with incorporation of mitigation measures. Therefore, there are no changes or new significant information which would require preparation of a subsequent EIR. Operation On -Site Community Risk and Hazards The Certified EIR did not identify significant health risk impacts for on-site receptors from existing off-site emission sources. Additionally, the Certified EIR did not identify a significant health risk impact generated from the proposed residential and commercial uses. The modified project would not introduce new sources of TACs. Therefore, there are no changes or new significant information which would require preparation of a subsequent EIR. Operation On -Site Community Risk and Hazards CO Hotspots The Certified EIR did not identify any significant localized impacts (e.g., CO hotspots) from operation of the Original Project. In 1998, the SFBAAB was designated as in attainment for CO under both the California AAQS and National AAQS and was under a 10 -year federal maintenance plan for CO as a result of its re -designation. Under existing and future vehicle emission rates, a project would have to increase traffic volumes at a single intersection by more than 44,000 vehicles per hour—or 24,000 vehicles per hour where vertical and/or horizontal air does not mix—in order to generate a significant CO impact. As seen in Appendix D, San Leandro Shoreline Trip Generation Memorandum, the Modified Project would generate fewer trips than the Original Project, with a maximum of 8,375daily trips and up to 532 PM peak hour trips. Furthermore, the number of trips would be minimal compared to the aforementioned screening levels. Therefore, the Modified Project would not result in substantial changes requiring major revisions of the Original Project. No changes or new significant information which would require preparation of an EIR are anticipated. In summary, the Modified Project would not result in a new impact or a substantial increase in magnitude of existing impacts which would expose sensitive receptors to substantial pollutant concentrations. AIR -d. The Certified EIR did not identify any substantial odors from the proposed residential and commercial uses. The Modified Project would not introduce new sources of odor onsite and thus would not result in any new impacts or a substantial increase in magnitude of impacts regarding other emissions, such as odors, which would adversely affect a substantial number of people. January 2020 Page 33