Item 26 - Public Hearing Vista Heritage Charter School (601 North Fairview Street)

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Vista Charter Public Schools District Office and Outdoor Space Project CEQA Exemption 15183 heavy truck operations, and therefore would not result in operational vibration impacts at surrounding uses. No impacts would occur in this regard. EXCESSIVE NOISE NEAR AIRPORTS The nearest airport to the project site is the John Wayne Airport located approximately five miles to the southeast. The project site is not located within two miles of the airport. Additionally, the project site is not located within the vicinity of a private airstrip or related facilities. Therefore, project implementation would not expose people residing or working in the project area to excessive noise levels associated with aircraft. As such, the impacts would be less than significant. NOISE IMPACTS TO ON -SITE SENSITIVE RECEPTORS The project site is located adjacent to an existing railroad alignment. The railroad is currently not operational and is being developed to build a fixed guideway system, OC Streetcar. Due to the proximity of the project site to the railroad alignment, future operations of the railroad have the potential to elevate existing noise levels, particularly during streetcar operations and crossing signal noise along Fairview Street located at approximately 90 feet from the project site. Based on the Santa Ana and Garden Grove Fixed Guideway Project Noise and Vibration Technical Report, prepared by URS Corporation and dated February 2012, noise from the operation of future streetcars have the potential to range from approximately 43 dBA Ldn during crossing activities to 59 dBA Ldn during blowing warning horn at approximately 100 feet. As such, exterior noise levels impacting the project site from the operation of future streetcars would not increase the existing ambient noise levels; refer to Table 7. Furthermore, future noise level impacts from OC Streetcar operations would be within the normally acceptable range of 50 to 70 dBA CNEL.28 As such, noise impacts to on -site sensitive receptors would be less than significant. 4.13.3 Conclusion As such, the project is consistent with buildout of the General Plan Update. Upon implementation of RR N0I-2 and N0I-3, the proposed project would not have any specific effects which are peculiar to the project or the site. There are no project specific impacts or potentially significant off -site or cumulative impacts the GPU EIR failed to analyze, and there are no new significant or substantially more severe impacts to noise and vibration than anticipated by the GPU EIR. Applicable GPU EIR Regulatory Requirements/Mitigation Measures: RR N0I-2 Construction Noise Sources: Section 18-314(e) of the Santa Ana Municipal code prohibits construction activities to the hours of 7:00 AM to 8:00 PM Monday through Saturday. RR N0I-3 Stationary Noise Sources: Section 18.312 of the Santa Ana Municipal Code establishes standards for stationary noise sources. 28 State of California Governor's Office of Planning and Research, General Plan Guidelines, Julv 2017. Dec i y ouncil 26 — 109 1/16/20'2 e49