75A - One Broadway Plaza Addendum_4.20.2020_wAppendices

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ONE BROADWAY PLAZA PROJECT EIR ADDENDUM CITY OF SANTA ANA 5. Environmental Analysis Comments: a) Result in the loss of availability of a known mineral resource that would be a value to the region and the residents of the state? No Impact. The Proposed Project's residential units would occurwithin the envelope of the Approved Project; the Proposed Project would not result in an expansion of the building footprint or in new development beyond what was analyzed in the Certified EIR. Therefore, the Proposed Project would not result in any new impacts to mineral resources. No impact would occur and no changes or new information would require preparation of a subsequent EIR. b) Result in the loss of availability of a locally important mineral resource recovery site delineated on a local general plan, specific plan or other land use plan? No Impact. The Land Use Element states that there are no significant mineral aggregate resource areas designations within the City (City of Santa Ana 1998). The Proposed Project's residential units would occur within the envelope of the Approved Project; the Proposed Project would not result in an expansion of the building footprint or in new development beyond what was analyzed in the Certified EIR. Therefore, the Proposed Project would not result in any new impacts to mineral resources. No impact would occur and no changes or new information would require preparation of a subsequent EIR. 5.12.3 Adopted Mitigation Measures Applicable to the Proposed Project No mitigation measures related to mineral resources were identified in the Certified EIR. 5.13 NOISE 5.13.1 Summary of Previous Environmental Analysis The Certified EIR determined that the construction of the Approved Project could generate noise levels that exceed noise standards established by the City of Santa Ana noise thresholds. However, the implementation of identified mitigation measures would reduce temporary construction noise impacts to a less than significant level. Operation of the Approved Project, including use of the parking structure, operational noise due to project traffic, and potential helipad noise, would result in a less than significant impact. The Certified EIR determined that the Approved Project's contribution to future traffic noise is insignificant. The Certified EIR found the Approved Project may experience future traffic noise levels in excess of the City's noise threshold and identifies Mitigation Measure N-3 to ensure that the on -site commercial buildings would keep outside noise from entering the interior of these buildings. The Initial Study to the Certified EIR determined that because the Proposed Project is not located within an airport land use plan nor within the vicinity of a public airport or private airstrip, no impact related to the exposure of people residing or working in the project area to excessive airport related noise levels. Apri12020 Page 69