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Environmental Checklist Noise and Vibration Environmental Consistency Checklist Pursuant to CEQA Guidelines Section 15183 85 Project-Specific Impacts FCS submitted a Noise Impacts Constraints Analysis for the proposed project. The analysis included a 24-hour noise measurement conducted on site measuring the ambient noise levels associated with the project site as well as a Federal Highway Administration (FHWA) Traffic Noise Prediction Model modeling noise levels adjacent to the project site (Appendix NOI). a.Would the project result in generation of a substantial temporary or permanent increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? Consistent with the methodology within the General Plan EIR, significant noise impacts would occur if ambient noise levels exceed the following City thresholds outlined in Chart 7-2 of the General Plan: 60 dBA for low density single family, duplex, and mobile homes; 65 dBA for multi-family residential, transient lodging, motels, and hotels; 70 dBA for schools, libraries, churches, hospitals, nursing homes, playgrounds, neighborhood parks, office buildings, businesses, commercial and professional land uses; 75 dBA for golf courses, riding stables, water recreation, cemeteries, industrial, manufacturing, utilities and agriculture (City of San Leandro 2016a). In addition, consistent with General Plan Policy EH-7.4, for CEQA purposes, a permanent increase of 3 dB Ldn would be a significant adverse impact (City of San Leandro 2016a). Construction Impacts Noise impacts from project construction would be generated primarily by transport of workers, equipment, and materials to and from the project site and by operation of construction equipment. CONSTRUCTION-RELATED TRAFFIC NOISE Typically, a doubling of the Average Daily Traffic hourly volumes on a roadway segment would result in an increase of 3 dBA in traffic noise levels which, consistent with General Plan Policy EH-7.4, would be a significant adverse impact. The maximum number of daily trips associated with construction would be 82 trips which would not double the hourly traffic volumes along roadway segments in the project vicinity (Appendix AQ). Construction impacts related to worker commute and equipment transport to the project site would be less than significant (Appendix NOI). CONSTRUCTION EQUIPMENT NOISE The site preparation phase, which includes excavation and grading activities, would generate the highest noise levels due to the use of noise intensive equipment such as bulldozers, front-end loaders, and excavators. At a distance of 50 feet, a concrete mixing truck, front-end loader, and excavator are assumed to generate 85 dBA Lmax. For the purpose of this analysis, FCS assumed that all three equipment would operate simultaneously, resulting in a maximum impact noise model scenario of 90 dBA Lmax at a distance of 50 feet from the acoustic center of project construction. The nearest sensitive receivers are single-family residents located immediately adjacent to the eastern and western boundaries of the project site approximately 55 feet from the acoustic center of project construction. At this distance, reasonable maximum construction noise levels could range