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Hana Japan Restaurant Project Initial Study/Mitigated Negative Declaration 60 May 2025 Standards of Significance Chapter 9.04 of the City’s Municipal Code establishes noise regulations within the City. Pursuant to Section 9.04.040, Noise Limits – Commercial Property, noise levels are not allowed to exceed 70 dBA. In addition, if the proposed restaurant’s hours of operation include any hours between 10:00 PM and 6:00 AM, the proposed project would be subject to the standards contained within Section 9.04.035, Noise Limits – Commercial or Industrial Use Adjacent to Residential Zone, of the City’s Municipal Code. However, Section 9.04.100, Construction, of the Municipal Code exempts noise generated construction activities so long as construction is performed during the permitted hours of 8:00 AM and 8:00 PM, Monday through Friday and between the hours of 10:00 AM to 6:00 PM on Saturdays, Sundays, and holidays. To be exempt, the construction must also avoid producing a noise level exceeding 86 dBA and an individual piece of equipment must not produce noise above 83 dBA at 25 feet. In addition, General Plan Policy 4 within the City’s Noise Element establishes acceptable noise levels in Table 11-5 (reproduced as Table 5 below). As shown therein, normally acceptable noise levels for areas with residential uses are less than or equal to 75 dBA Ldn and unacceptable levels exceed 75 dBA Ldn. Should project operational noise result in exterior noise levels exceeding 75 dBA Ldn, due to the adjacent single-family residence, the proposed project would be considered to result in a significant noise impact. Table 4 City of Pleasanton General Plan Noise and Land Use Compatibility Guidelines (General Plan Table 11-5) The City of Pleasanton has not established a threshold for significant increases in traffic noise. Therefore, for short-term noise associated with project construction, the California Department of Transportation (Caltrans) increase criteria of 12 dBA is applied to existing