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YesMa e No 6. Noise. Will the proposal result in: a. Increases in existing noise levels? X b. Exposure of people to severe noise levels? X Noise from the expanded operation will require mitigation. Most sensitive locations will be the rear area of the mobile home park north of Turner Road and a small section of industrial property adjacent to the southeast comer of the Transfer Station. The mitigations suggested will bring the future operation into compliance with the current Noise Element of the Lodi General Plan. Setting Noise in the Cit was studied b the San Joaquin Council of Governments when that Y Y q organization prepared a County-wide Noise Element in 1974. Lodi adopted its portion of the study as the Noise Element of the City's General Plan (See Figure N-1 Noise Compatibility Chart). When the study was prepared ambient readings in decibels "A" weighted* (dBA) were taken throughout the City west of Highway 99. Night (10:00 pm- 7:00 am.) readings averaged in the high 30's to low 40's. Day (7.00 am - 10:00 pm.) values, after averaging, ranged from the mid 40's to low 50's. No readings were reported east of Highway 99 during this study (See Figure N-2). In general, the study found higher noise levels near Highway 99. A subsequent noise analysis was made as part of a "Background Report General Plan Update City of Lodi" by Jones and Stokes in 1988. The Jones and Stokes study modeled noise at 195 locations (mainly street intersections) in Lodi using the Federal Highway Administration Traffic Noise Prediction Model. The model was tested against measured noise levels taken in 1985 and 1987 and found to produce valid results. The noise values predicted by the Jones and Stokes model were expressed in average levels over a 24 hour period or Community Equivalent Noise Levels (CNEL). The predicted levels closest to the area influenced by the transfer station were 62.5 dBA located 100' south of the intersection of Turner and Cherokee and 64 dBA 100' located east of Beckman and 500' south of Turner in the mobile home park. * The "A" weighting is a noise measurement filter that reads sound very close to the way the human ear perceives it. 29