2014-069 - Final Environmental Impact Report No. 2014-01

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Harbor Boulevard Mixed Use Transit Corridor Plan Findings and Facts in Support of Findings and Statement of Overriding Considerations stationary noise, but would increase the residential density in the area, which would have the potential to expose persons to stationary noise above the City's noise ordinance criteria. No site - specific development is proposed at this time. Therefore, the specifications, design features, and /or location of these potential noise sources and the resulting effect of future development on nearby sensitive receptors cannot be quantified at this time. However, Mitigation Measure 9 -2 would require project applicants to submit acoustic reports that demonstrate that operation of proposed land uses would not excessively increase noise levels. With implementation of Mitigation Measure 9 -2, this impact would be less than significant. Mitigation Measures MM 9 -2 Prior to issuance of a building permit, applicants for new commercial, office, or retail developments in the Harbor Corridor Plan shall submit an acoustic report prepared to the satisfaction of the Zoning Administrator and Building Official or their designee to ensure that the operation of stationary noise sources (i.e., HVAC units, truck deliveries) would not cause a noise increase of more than 5 dBA over the ambient noise levels at any adjacent property. These noise studies would need to be submitted after the precise grading and architectural plans are prepared, but prior to issuance of building permits. This requirement can be accomplished with selection of quieter equipment, judicious site layouts and equipment positioning, and /or equipment enclosures, sound screening, or parapet walls. These features shall be shown on all building plans and incorporated into the construction of the project. City inspectors shall verify compliance of the building with the acoustic report's recommendations prior to issuance of a Certificate of Occupancy. (3) Potential Impact: Construction activities would generate high levels of ground -borne vibration. Finding: 1. The City hereby makes Finding 1 and determines that this impact is less than significant with the incorporation of the proposed mitigation measure. Facts in Support of Finding The closest vibration - sensitive structures are existing and future residential uses in the project area. In addition, residential areas immediately adjacent to the boundaries of the project area are also considered vibration sensitive and would have the potential to be affected by construction activities during implementation of the Harbor Corridor Plan. However, implementation of Mitigation Measure 9 -3 would ensure that project applicants minimize construction - related vibration related to their projects. The measure requires applicants to prepare a vibration report to the satisfaction of the City and use equipment that produces low levels of vibration. Upon implementation of Mitigation Measure 9 -3, this impact would be less than significant. 35 July 2014