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SANTA ANA CLIMATE ACTION PLAN INITIAL STUDY CITY OF SANTA ANA c) A substantial permanent increase in ambient noise levels in the project vicinity above levels existing without the project? Less than Significant Impact. The majority of the measures within the CAP focus on reducing the amount of vehicle miles traveled by providing enhanced access to alternative modes of transportation and encouraging the development of residential nodes near retail and employment nodes. As a result, no permanent increase in local traffic volumes is anticipated. The impact would be less than significant. d) A substantial temporary or periodic increase in ambient noise levels in the project vicinity above levels existing without the project? Less than Significant Impact. Although no permanent increases in ambient noise levels will occur, temporary or periodic increases could occur as a result of consttvction activity. However, the Draft CAP does not encourage or require development of land use projects that would result in substantial amounts of construction noise that would not otherwise occur. However, the exact nature of future construction that could occur is not known at this tune, thus construction noise levels cannot be estimated. Further, all construction activities would be required to comply with the City's noise ordinance and undergo project -level CEQA review to analyze impacts related to noise when more specific project details are lunown. Such compliance would reduce temporary or periodic increases in ambient noise levels. This impact would be less than significant. e) For a project located within 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 worldng in the project area to excessive noise levels? Less than Significant Impact. Southern portions of the City are within the John Wayne Airport Land Use Plan.46 These portions are included within a designated impact zone. The impact zone encompasses a small portion of the City that borders the SR -55 near Dyer Road, which is within the 60 dBA noise level, 47 The City of Santa Ana General Plan Airport Environs Element states that residential uses within the 60 dBA contour should be mitigated to address present and project noise exposure and that residential interior noise levels should not exceed 45 dBA. However, the land within the 60 dBA contour is designated as commercial, industrial, and office land uses within the General Plan.+s In regards to people working in the area and their exposure to excessive noise levels, the Draft CAP proposes measures to encourage residential nodes near retail and employment nodes. Therefore, these land uses could be located near one another and within the noise contours. However, any new residential uses would require noise mitigation consistent with the General Plan element, and no noise incompatibilities would occur. As a result, implementation of the Draft CAP 46 Airport Land Use Commission for Orange County. Land Use Plan for John Wayne Airftorl. Adopted April 17, 2008. Available online at: hrrrc / /xwvocgircom /comnrissions /nluc /dots /JWA AFIUP- April- 17- 2008pdf, accessed September 1, 2015, 47 City of Santa Ana Planning Division. City of Santa Ana General Plan Abpoei Environs Element Exhibit 2. Adopted February 11, 2009. Available online at: ttrr//www.ci.santa- ,tna ca us /gener�tlph n /documents /AirportEnvi ions lf, accessed September 3, 2015. 49 City of Santa Ana Planning Division. City of Santa Ana General Plan Airport Environs Element p. 4. Adopted February 11, 2009. Available online at: htW : / /www ci stintt -an ,,t ca us /generglpl,r /documents /,\irportEnvirons.pdf, accessed September 3, 2015. Page 42 October 2015 75B -140