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Environmental Checklist Noise and Vibration Environmental Consistency Checklist Pursuant to CEQA Guidelines Section 15183 87 General Plan EIR noise analysis mitigation measures would be required based on the findings in Appendix NOI. In addition, the City would require an acoustical analysis to demonstrate how dwelling units have been designed to meet the interior standard of 45 CNEL in habitable spaces on sites where the ambient exterior noise level exceeds 60 dBA CNEL pursuant to General Plan Policy EH-7.2 (City of San Leandro 2016a). Therefore, with implementation of General Plan EIR Mitigation Measure NOI-4 and the applicable General Plan policies and actions outlined above, the project would meet the City’s residential exterior noise level standard and would have a less than significant impact. b.Would the project result in generation of excessive groundborne vibration or groundborne noise levels? Project construction, which would occur over one year, could intermittently generate vibration on and adjacent to the project site. Vibration associated with excavation and foundation work may affect nearby residences, industrial warehouses, and other structures. Of the equipment used during construction, the large vibratory rollers that would be used during the site preparation phase would produce the greatest groundborne vibration levels. Large vibratory rollers, as the construction equipment with the largest vibratory impact, were used to determine the vibration impacts on the project site. The nearest off-site receivers are single-family residences located immediately adjacent to the western and eastern boundaries of the project site. The receivers would be located approximately 30 feet from the nearest construction footprint where the heaviest construction equipment would operate. At a distance of 30 feet, groundborne vibration levels would range up to 0.15 inches per second peak particle velocity (in/sec PPV) (Appendix NOI). This would be below the FTA’s Construction Vibration Impact Criteria of 0.2 in/sec PPV threshold for non-engineered timber and masonry buildings (FTA 2018). In addition, General Plan Policy EH-7.9 which limits the potential for vibration impacts from construction and ongoing operations to disturb sensitive uses via Action EH- 7.9.A would further reduce vibration impacts. Therefore, vibration impacts from construction equipment would be less than significant. As stated under impact criterion a, compliance with SLMC Section 4.1.1115(b), which restricts construction to between 7 a.m. and 7 p.m. on weekdays or between 8 a.m. and 7 p.m. on Saturday and Sunday, would ensure that nearby sensitive receivers at residential uses would not experience excessive vibration levels during sleeping hours. With implementation of Standard Conditions of Approval via Mitigation Measure NOI-4 reproduced above, the project’s construction vibration impacts would be less than significant. This would be consistent with the General Plan EIR’s findings that vibration would constitute a less than significant impact as a result of the exposure of nearby receivers to construction vibration. Project operation would not generate groundborne vibration. c.For a project located within the vicinity of a private airstrip or an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? The project site is not located within the vicinity of a private airstrip. The project site is located approximately 2.85 miles north of the Hayward Executive Airport and 4.5 miles east of the Oakland International Airport. The project site is located outside of the 60 dBA CNEL airport noise contour of the Hayward Executive Airport and outside of the airport noise level contours of the Oakland