31B - CUP - 1901 NORTH FAIRVIEW ST

Home Browse Search

City of Santa Ana Environmental Checklist Peale Particle Velocity (PPV) (in /sec) Human Reaction Effect on Buildings 0.4 -0.6 Vibrations considered unpleasant by Vibrations at a greater level than people subjected to continuous. normally expected from traffic, but vibrations and unacceptable to some would cause "architectural" damage and _ people walking on bridges. possibly minor structural damage. Source: California Department of Transportation, Transportation- and Construction- Induced Vibration Guidance Manual, 2004. c. A substantial permanent increase in ambient noise levels in the project vicinity above levels existing without the project? Less - than - Significant Impact. As described in XILa, the proposed project would result in an increase in traffic along the local roadway system and increases in noise related to project - related HVAC equipment and exterior activities, such as parking lot and basketball court noise. As described previously, the anticipated noise increase from these onsite noise sources would be minimal and would not result in a significant increase in ambient noise levels. As a result, impacts are 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 with Mitigation Incorporated. As described in XILa, construction - related activities and equipment used during construction of the proposed project would result in a temporary or periodic increase in ambient noise levels above existing levels. The City's municipal code exempts construction related noise provided that it occurs between the hours of 7:00 a.m. to 8:00 p.m. on weekdays and Saturday. However, the short -term noise from construction would be loud at times at the nearby noise- sensitive land uses and could be disruptive. Therefore, Mitigation Measure N01 -1, which implements noise control measures, is provided to reduce construction noise levels to a less- than - significant level. The proposed project would include new HVAC units, parking areas, and outdoor basketball courts during operation of Phase 1, which would produce periodic increases in noise at sensitive receivers surrounding the project site. The HVAC units would be acoustically engineered by the manufacturer to ensure that the City's noise standards would not be exceeded. The noise generated from the parking area located around the perimeter of the project site and the noise generated by the outside basketball courts will be buffered by the existing 6 -foot wall that bounds the project site. In addition, these noise sources would not exceed the City noise thresholds. Therefore, operational noise impacts would be less than significant. e. For a project located within an airport land use land use plan or, where such a plan has not been adopted, within 2 miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? No Impact. John Wayne Airport is located about 8 miles to the southeast of the project site, and the Fullerton Municipal Airport is located approximately 11 miles to the northwest (Google Earth 2012) The project site is not located within any airport land use plan and not within 2 miles of any public or private airport or airstrip. As a result, the proposed project site will not receive airport - related The Academy Charter High School 3 So June 2012 Initial Study /Mitigated Negative Declaration ICFOO914.11 •�,