75B - PH - CLIMATE ACTION PLAN - Laserfiche WebLink

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SANTA ANA CLIMATE ACTION PLAN INITIAL STUDY CITY OF SANTA ANA No Impact. As discussed above in Section 3.11(a), there are no known mineral resources within the City. No impact would occur. 3.12 NOISE a) Exposure of persons to or generation of noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? Less than Significant Impact. While the Draft CAP is a policy -based document and does not directly recommend any measures that would generate excessive amounts of construction noise, construction activity associated with implementation of the Draft CAP measures could possibly result in temporary increases in noise levels. The City's noise ordinance designates the entire City of Santa Ana as "Noise Zone 1" which sets forth an exterior noise standard of 55 dBA from 7:00 a.m. to 10:00 p.m. and 50 dBA from 10:00 p.m. to 7:00 a.m.45 A special provision exempts construction activities from the provisions of the ordinance so long as construction does not take place between the hours of 8:00 p.m. and 7:00 a.m. on weekdays, including Saturday, or any time on Sunday or a federal holiday. A majority of the proposed measures would involve small scale construction projects, such as energy efficient retrofits and streetlight replacement; however, the CAP does include some transportation and land use measures that could lead to the development of larger scale residential, retail, and employment buildings and expanded bike and pedestrian paths. Therefore, the exact nature of future construction that could occur is not known at this time, thus construction noise levels cannot be estimated. 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. 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 known. Such compliance would reduce noise levels associated with construction activities. This impact would be less than significant. b) Exposure of persons to or generation of excessive groundborne vibration or groundborne noise levels? Less than Significant Impact. Similar to Section 3.12(a), temporary construction activities as a result of implementation of the Draft CAP could result in excessive groundborne vibration or groundborne noise. In addition, the Draft CAP is a policy -based document and does not directly recommend any measures or land use development that would generate excessive amounts of construction noise. A majority of the measures would involve small scale construction projects, such as energy efficient retrofits and streetlight replacement. The exact nature of future construction that could occur is not known at this time, thus construction noise levels cannot be estimated. However, 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 known. Such compliance would reduce noise groundborne vibration and noise levels associated with construction activities. This impact would be less than significant 45 City of Santa Ana Municipal Code, Chapter 18 Article VI —Noise Control. Section 18 -312 —Exterior noise standards. October 2015 75B -139