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The Bowery Mixed-Use Project CEQA Findings of Fact City of Santa Ana 29 May 2020 As shown on Draft EIR Table 5.10-6, construction noise at the nearby receiver locations would range from 51.0 to 71.4 dBA Leq, which would not exceed the 85 dba Leq daytime construction noise level threshold (the National Institute for Occupational Safety and Health (NIOSH) Criteria for Recommended Standard: Occupational Noise Exposure) at nearby non-residential non-sensitive receiver locations. Therefore, construction impacts would be less than significant. Also, the increase in temporary noise from Project construction, as detailed in Draft EIR Table 5.10- 7, would not exceed the 12 dBA Leq significance threshold (per Caltrans Traffic Noise Analysis Protocol). Therefore, impacts related to substantial increases in ambient noise related to construction activity would be less than significant. Operation Onsite Operational Noise. Noise generated by the Project site would occur from stationary equipment such as heating, ventilation, and air conditioning (HVAC) units that would be installed for the new development, use of parking facilities, trash removal activity, and activity at outdoor gathering areas. Based on these typical noise levels, operation of the Project would not result in an exceedance of the City’s Municipal Code Section 18-313 noise standards. Also, the City’s building and plan check permitting process includes verification that the location of operational noise sources would not result in an exceedance of the municipal code standards. Thus, the City’s standards development permitting process would ensure that the proposed Project would not generate on-site operational noise that would exceed noise standards. Therefore, impacts would be less than significant. Onsite Traffic Noise. The location and design of the multi-family residential outdoor common areas substantially limits the exposure to traffic noise. As shown on Draft EIR Table 5.10-8, the exterior noise levels at the multi-family residential outdoor common areas would range from 45.1 to 57.7 dBA CNEL, which is below the General Plan Noise Element 65 dBA CNEL exterior noise level standard for outdoor common areas. Therefore, the on-site traffic noise impacts at the multi-family residential outdoor common areas would be less than significant. Offsite Traffic Noise. In the existing with Project conditions (Draft EIR Table 5.10-9) noise would range from 66.8 to 75.8 dBA CNEL. Implementation of the proposed Project A would generate a noise level increase of up to 0.5 dBA CNEL on the study area roadway segments, which is less than the 1.5 dBA CNEL threshold for areas above 65 dBA CNEL. Thus, off-site traffic noise impacts in the existing plus Project condition would be less than significant. In the opening year (2022) with Project conditions (Draft EIR Table 5.10-10) noise would range from 67.4 to 76.2 dBA CNEL. Implementation of the proposed Project would generate a noise level increase of up to 0.5 dBA CNEL on the study area roadway segments, which is less than the 1.5 dBA CNEL threshold for areas above 65 CNEL. Thus, off-site traffic noise impacts in the opening year plus Project condition would be less than significant. In 2040 with Project conditions (Draft EIR Table 5.10-11) noise would range from 69.7 to 76.6 dBA CNEL. Implementation of the proposed Project would generate a noise level increase of up to 0.4 dBA CNEL on the study area roadway segments, which is less than the 1.5 dBA CNEL threshold for areas above 65 CNEL. Thus, off-site traffic noise impacts in the 2040 plus Project condition would be less than significant. 3-51