31B - CUP - 1901 NORTH FAIRVIEW ST

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City of Santa Ana Environmental Checklist Less-than- Significant Potentially Irnpactwith Less -than- XII. Noise Significant impact Mitigation Incorporated Significant Impact No Impact Would the project: a. Expose persons to or generate noise levels in ❑ ® ❑ ❑ excess of standards established in a local general plan or noise ordinance or applicable standards of other agencies? b. Expose persons to or generate excessive ❑ ❑ ® ❑ groundborne vibration or groundborne noise levels? c. Result in a substantial permanent increase in ❑ ❑ ® ❑ ambient noise levels in the project vicinity above levels existing without the project? d. Result in a substantial temporary or periodic ❑ ® ❑ ❑ increase in ambient noise levels in the project vicinity above levels existing without the project? e. Be located within an airport land use plan ❑ ❑ ❑ area, or, where such a plan has not been adopted, within two miles of a public airport or public use airport and expose people residing or working in the project area to excessive noise levels? E Be located in the vicinity of private airstrip ❑ [] ❑ and expose people residing or working in the project area to excessive noise levels? Existing Conditions at Project Site The existing noise - sensitive receivers in the vicinity of the project site include: multi- family residences adjacent to the south, occupants of the St. Edna Subacute & Rehabilitation Center adjacent to the north, single - family residences located to the east across Blueberry Lane, and single - family residences located to the west across Fairview Street. The primary existing noise source in the project area is from traffic noise generated from Fairview Street. Other noise sources in the project vicinity are noises that are typical of residential land uses, such as cars starting up and barking dogs. Five short -term and one long -term attended sound level measurements were conducted on January 24, 2012 through January 25, 2012, with a Larson Davis Type 812 sound level meter (short term), which is classified as a Type 1 (precision grade) instrument and a Rion NL -21 sound levels meter, which is classified as a Type 2 instrument. As shown on figure 3 -8, noise was measured at five noise - sensitive locations near the project site and one long -term location on the project site. During the field measurements, the physical observations of the predominant noise sources included: traffic along Fairview Street and Trask Avenue, aircraft on approach to John Wayne Airport, and ambient noise sources such as birds, landscape maintenance activities, and rustling leaves. The Academy Charter Nigh School tune 2012 Initial Study /Mitigated Negative Declaration 3 -72 ICF 00914.11 31 B -147