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Draft Supplemental Environmental Impact Report Page IV.0-3 — Forward Inc. Landfill 2014 Expansion Project If the sound is impulsive, single tone, or primarily speech or music, the allowable noise level is reduced by another 5 dB. San Joaquin County General Plan — The Noise Section of the Public Health and Safety Chapter of the San Joaquin County General Plan establishes specific policies to ensure acceptable noise environments for each land use (San Joaquin County, 1999). Applicable policies include the following: Policy 1. The following exterior noise levels shall be considered acceptable: (a) 65 dBA Ldn or less from transportation sources at outdoor activity areas at residential developments and other sensitive receptors. (b) 45 dBA Ldn or less for indoor spaces for residential development and other sensitive receptors. (c) Hourly Leq or 50 dBA or less during the daytime and 45 dBA or less during the nighttime from stationary sources at residential development. (d) Maximum sound level (Lmax) of 70 dBA or less during the daytime and 65 dBA or less during the nighttime from stationary sources at residential development. Policy 3. Development shall be planned and designed to minimize noise impacts on neighboring noise — sensitive areas and to minimize noise interference from outside noise sources. Policy 5. The county shall seek to alleviate existing community noise problems. _ Table IV.0-2 Maximum Allowable Noise Exposure (Transportation Noise Sources) Outdoor Activity Interior Noise Sensitive Land Use Areas Spaces — (Use Types) dB Ldn dB Ldn Residential 65 45 Administrative Office -- 45 Child Care Services- Child Care Centers -- 45 Community Assembly 65 45 — Cultural & Library Services -- 45 Educational Services - General -- 45 Funeral &Interment Services-Undertaking 65 45 Lodging Services 65 45 Medical Services 65 45 — Professional Services -- 45 Public Services (excluding hospitals) -- 45 Public Services (hospitals only) 65 45 Recreation- Indoor Spectator -- 45 Religious Assembly 65 45 Source: Table 9.1025-9;San Joaquin County Ordinance Code adopted in 1999.