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City of Pleasanton—Hidden Canyon Residences and Preserve Air Quality Draft EIR 3.2-34 FirstCarbon Solutions https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480016/EIR/3 - Draft EIR/21480016 Sec03-02 Air Quality.docx Mitigation Measures None. Objectionable Odors Exposure Impact AIR-4: The proposed project would not result in other emissions (such as those leading to odors) adversely affecting a substantial number of people. Impact Analysis Odor impacts could occur if the proposed project introduces a new odor source near existing receptors. The BAAQMD provides a list of specific odor-generating facilities. According to BAAQMD, residential uses are not odor-generating facilities. Potential sources that may emit odors during construction activities include exhaust from diesel construction equipment. However, because of the temporary nature of these emissions, the intermittent nature of construction activities, and the highly diffusive properties of diesel PM exhaust, nearby receptors would not be affected by diesel exhaust odors associated with project construction. Odors from these sources would be localized and generally confined to the immediate area surrounding the proposed project site. The proposed project would utilize typical construction techniques, and the odors would be typical of most construction sites and temporary in nature. Thus, the proposed project would not introduce a new odor source near existing receptors and this impact would be less than significant. Level of Significance Before Mitigation Less than significant impact. Mitigation Measures None. 3.2.7 - Cumulative Impacts Cumulative Analysis The geographic area of the cumulative analysis for Impacts AIR-1 and AIR-2 is the SFBAAB. The cumulative analysis focuses on whether a specific project would result in cumulatively considerable emissions. According to Section 15064(h)(4) of the CEQA Guidelines, the existence of significant cumulative impacts caused by other projects alone does not constitute substantial evidence that the proposed project’s incremental effects would be cumulatively considerable. In regard to Impact Air- 1, the determination of cumulative air quality impacts on regional air quality is based on whether the proposed project would conflict with or obstruct implementation of the applicable AQP. Therefore, the proposed project would not be considered to result in a cumulatively considerable contribution to these regional air quality impacts if it does not conflict with or obstruct implementation of the applicable AQP after implementation of IM AIR-1. The proposed project does not conflict with or obstruct implementation of the applicable AQP; therefore, a less than significant cumulative impact would occur for Impact Air-1.