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Prmlic•o Drive Turnout curd Pipeline Project Ettvironmentet! Checklist 11. NOISE Environmental Setting The proposed project is located within an urban setting. The pipeline will be placed within Pimlico and Brockton drives and the fluoridation building, turnout and vaults will be placed in public rights-of-way. Residential or commercial areas are located adjacent to these facilities. Standards of Significance For purposes of this environmental document, an impact is considered significant if the proposed project would: • Result in exterior noise levels above the acceptable level of GO dBA, (70 dBA daytime) for residential areas and 70 dBA for commercial areas; • Result in construction noise levels that do no meet the City of Pleasanton Noise Ordinance. Potentially I.CSC tllall Significant t.ess than ISSLLCS Significant Impact With ~litiga[ion Incorporated Significant \o Impact Impact Noise Would tke project: a) Exposure of persons to or generation of noise ~ ~ ~X levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies'? b) Exposure of persons to or generation of excessive ~ ~ Y ground borne vibration or ground borne noise levels? c) A substantial permanent increase in ambient noise levels in the project vicinity above levels existing without the project'? d) A substantial temporary or periodic increase in ~ ~ ^X ambient noise levels in the project vicinity above levels existing without the pro~ecf? e) For a project located within an airport land use ~ ~ ~ ~X plan or, where such a plan has not been adopted, within two miles of a public airport or public use le residin ct ex ose eo ld th i t g p p p rpor , wou e proje a or working in the project area to excessive noise levels? City of Pleasanton 40 Winder & Kelly Draft Initial Study/Proposed Negative Declaration August 2006 0423501