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Responses to <br />Environmental Checklist <br />For CEQA Compliance <br />X. Mineral Resources <br />A. Result in the loss of availability of a locally important mineral resource recovery site <br />delineated on a local general plan, specific plan or other land use plan? <br />No Impact <br />According to the City's Updated General Plan Land Use Element EIR, there are no areas in Santa Ana <br />that are designated significant Mineral Aggregate Resource Areas. Therefore, implementation of the <br />proposed project would not result in the loss of any regionally or locally important mineral resource. <br />XI. Noise <br />A. Exposure of persons to or generation of noise levels in excess of standards established in <br />local general plan or noise ordinance, or applicable standards of other agencies. <br />C. A substantial permanent increase in ambient noise levels in the project vicinity above <br />levels existing without the project. <br />Less Than Significant Impact <br />The project site is subject to noise standards and guidelines in the General Plan Noise Element and <br />Municipal Code Noise Ordinance. The primary purpose of the City of Santa Ana Noise Element is to <br />"Prevent significant increases in noise levels in the community and minimize the adverse effects of <br />currently-existing noise sources." In accordance with the Noise Element, the City has adopted noise <br />standards and guidelines for land use planning. These guidelines for exterior noise levels are presented <br />in Table N-1. <br />Table N-1 <br />Git Of Santa Ana Land Use Gui delines For Exterior Noise <br />Land Use Noise Level dBA CNEL or Ldn <br /> Desirable Maximum Maximum Acce table <br />Low Densit Residential 55 65 <br />Medium Densit Residential 60 65 <br />Hi h Densit Residential 65 70 <br />Schools 60 70 <br />Commercial, Office 65 75 <br />_ Industrial ____ 70 75 <br />A significant noise impact would occur if a proposed land uses does not comply with the General Plan <br />noise standards identified in Table N-1, or when a proposed land use results in an 3dB increase to <br />existing noise levels when the existing noise level is at least 65 dB CNEL. <br />The operation of the proposed project would not significantly increase noise levels within the project site. <br />A significant increase in noise would be a 3dB increase over existing noise levels. Typically, a 3db <br />increase in noise levels occurs when existing traffic volumes are doubled. The proposed project would <br />not double existing traffic volumes within the project area. Therefore, implementation of the proposed <br />project would not result in a 3db increase to existing noise levels within the project area. <br />Pag~~o~-39 11 <br />