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B. A substantial pe~anent increase in ambient noise levels in the project vicinity above levels existing without the project. Exposure of persons to or generation of groundborne vibration or groundborne noise levels. A substantial temporary or periodic increase in ambient noise levels in the project vicinity above levels existing without project. c. excessive Ð. No Impact Approval of the proposed amendment to SD-60 would not directly result in any short-term or long-term noise impacts or excessive groundborne vibration impacts, in that the proposed project would not involve any changes in land uses, changes in development intensities or construction activities that would increase long-term or short-term noise levels within the SD-60 project area. E. For a project located within an airport land use plan or where such a plan has not been adopted, within two 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 The City of Santa Ana is located just southeast of John Wayne Airport. According to the Orange County Airports Environs Land Use Plan, there are no areas within the City that are within the noise impact area or 65 CNEL of John Wayne Airport. Therefore, approval of the proposed amendment to SD-60'would not expose people within the SD-60 project area to excessive aircraft noise impacts. x. A. B. c. POPULATION/HOUSING Induce substantial population growth in an area, either directly or indirectly through extens'ion of roads or other infrastructure. Displace substantial numbers of existing housing, necessitating the construction of replacement housing elsewhere. Displace substantial numbers of people, necessitating the construction of replacement housing elsewhere? No Impact 75B~~ltf48