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KLEINF-HL®E Bright People.Right Solutions. 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? f. Be located in the vicinity of a private airstrip and expose people 4 residing or working in the project area to excessive noise levels? NARRATIVE DISCUSSION The potential noise impacts of the East Stockton Transfer and Recycling were evaluated in an Environmental Noise Study prepared for Kleinfelder by Charles M. Salter Associates, Inc. (CSAI) (Salter 2011). The study quantifies the existing noise environment at the project site, future noise conditions associated with proposed operational changes (e.g., increased materials handling and truck deliveries, and comparison of these projections to the applicable City noise standards. A copy of the noise study, including detailed background information on environmental noise and noise measurement, is shown in Appendix C of this document. Environmental Setting To quantify the existing noise environment at the project site, CSAI conducted five continuous 24-hour noise measurements from 12 to 13 September and 19 to 22 September, 2011. The dominant noise source is local traffic on N Filbert Street and Weber Avenue. State Route 4 (Crosstown Freeway) also contributes to the noise environment but to a lesser degree. Noise from SR 4 is attenuated in the project vicinity by existing noise walls along the freeway. Table 3-3 and Figure 1 of Appendix C show a summary of the measured data. The acceptability of various noise levels, and thresholds for the determination of the significance of environmental noise effects, are defined in noise standards, which have been adopted by cities, counties and other agencies with land use authority. In this case, the standards of the City of Stockton would be applicable. These are defined in the Stockton General Plan 2035 and in the Stockton Development Code. City of Stockton General Plan Standards The Stockton General Plan defines the acceptability of certain noise levels by land use. Table 3-4 summarizes the compatibility of land uses with respect to DNL noise levels. 121339/ST011 8226 3-45 October 14, 2011 Copyright 2011 Kleinfelder