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3. Environmental Checklist San Leandro Treatment Wetland IS/MND 3-14 February 2024 lifetime exposure. As sensitive receptors are greater than 3,500 feet from the Proposed Project and daily emissions for three months is estimated to maximize at 1.35 pounds per day. Accordingly, with the distance and low level of emissions, Project related DPM emissions would not be considered substantial and would not result in a significant incremental cancer risk. Therefore, the impact related to exposing sensitive receptors to substantial pollutant concentrations would be less than significant. There would be a de minimis increase in TAC emissions during operation of the Proposed Project which would strictly be related to the potential for a diesel truck to be used by off-site service personnel when such maintenance on the system is required. Impact Designation: Less-than Significant Impact d) Result in adverse impacts to a substantial number of people: During construction activities, construction equipment exhaust would temporarily generate odors. However, any construction-related odor emissions would be low in concentration and temporary in nature. Additionally, odors would typically be confined to the immediate vicinity of the construction equipment and the nearest sensitive receptor is over 3,500 feet to the south of the Proposed Project. By the time such emissions reach any sensitive receptor sites, they would be diluted to well below any level of air quality concern. In summary, construction-related odor emissions would be temporary, and the Proposed Project is not considered the type of use that would generate odors that would affect a substantial number of people. The Proposed Project would result in the conversion of a wastewater storage basin into a freshwater treatment wetland. Therefore, the Proposed Project would not result in a change in land use that would generate significant new types of odors and no objectionable odors are anticipated to result from the operational activity of the Proposed Project. Impact Designation: Less-Than-Significant Impact. Cumulative Impacts on Air Quality According to BAAQMD guidance, a project's contribution to cumulative air quality impacts would be considered significant if its individual impact is deemed significant or if it conflicts with the applicable clean air plan. As previously discussed, the Project is not anticipated to result in any significant air quality impacts during construction or operation, as its emissions are projected to remain well below the BAAQMD significance thresholds. Consequently, its contribution to the cumulative air quality impact in the Bay Area is not expected to be cumulatively considerable, indicating that the associated impact would be less than significant.