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City of Pleasanton—Hidden Canyon Residences and Preserve Project Responses to Written Comments Final EIR 3-54 FirstCarbon Solutions https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480016/EIR/4 - Final EIR/21480016 Sec03-00 Responses to Written Comments.docx from the proposed project development would not conflict with adopted congestion management agency standards. Furthermore, existing ambient noise measurements were conducted on the project site in October of 2024, accounting for all existing noise-generating sources, and included in Appendix G of the Draft EIR. Draft EIR Section 3.11, Noise, page 3.11-17, notes that the proposed project would result in a temporary reasonable worst-case construction scenario of noise levels up to 74 dBA Leq, which would be below the City’s applicable construction noise threshold of 86 dBA. Draft EIR page 3.11-18 states that vehicle trips generated by proposed project operations would not double average daily or peak- hour traffic volumes and would result in a less than 1 dBA increase in traffic noise levels, which is well below the 4 dBA increase that would be considered significant. Therefore, the proposed project’s impact on traffic noise levels would be less than significant. In addition, Draft EIR pages 3.11-18 and 3.11-19 discuss proposed project operational noise levels associated with utility infrastructure in the form of mechanical ventilation equipment. The proposed ventilation equipment would be located approximately 160 feet from the nearest sensitive receptor property line. At this distance, noise level calculations would not exceed the City’s noise performance thresholds of 60 dBA at the nearest receiving residential property line. Therefore, any operational noise impacts resulting from proposed project development, including mechanical equipment, would be less than significant without mitigation required. Noise calculations for the proposed project are included in Appendix G of the Draft EIR. This comment is included in the administrative record and will be provided to the decision-makers for review and consideration. The comment did not provide new, substantial evidence with respect to the disposition of significant environmental impacts evaluated in the Draft EIR. Therefore, no further response is required. Response to ANONYMOUS-3 As stated in Draft EIR Chapter 2, Project Description, page 2-27, the proposed project would include construction of 6-foot-wide bicycle lanes on both sides of Dublin Canyon Road along the project site frontage and would provide a 5-foot-wide sidewalk on Dublin Canyon Road to the EBRPD staging area and trailhead. These bicycle and pedestrian facilities were evaluated in Draft EIR Section 3.14, Transportation, page 3.14-12, and were not anticipated to interfere with bicycle accessibility to project site and adjoining areas; or conflict with an existing or planned pedestrian or bicycle facility; or conflict with policies related to bicycle and pedestrian activity adopted by the City. Moreover, as noted on Draft EIR page 3.14-14 and 3.14-15, the proposed bicycle lanes and pedestrian sidewalk would be sited to be adequately accommodated by the proposed project streets and the EBRPD driveway to avoid creating hazardous conditions for bicyclists and pedestrians. Therefore, the impact to bicycle facilities and pedestrian facilities would be less than significant without mitigation required. This comment is included in the administrative record and will be provided to the decision- makers for review and consideration. The comment did not provide new, substantial evidence with respect to the disposition of significant environmental impacts evaluated in the Draft EIR. Therefore, no further response is required.