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III. ENVIRONMENTAL SETTING,IMPACTS AND MrrIGATION MEASURES D. NOISE Impact D.2: Operation of the expanded transfer station would generate substantial levels of P P noise that could adversely affect the noise environment of nearby land uses. (Significant) Project site operations are limited at present. Approximately 1.5 tons per day (TPD) of waste is currently processed at the site and no materials are being recovered. The site currently operates Monday through Saturday from 4:00 a.m. to 5:00 p.m. In addition to the approximately 1.5 TPD handled at the project site under existing conditions, Stockton Scavengers Association trucks currently collect loads of commercial waste and residential waste from throughout the City of Stockton and transport those wastes to the East Stockton Transfer Station and Forward Landfill. The trucks are parked at the project site, with trucks departing early in the morning and returning mid-to late-afternoon. The site also has existing truck maintenance and cleaning facilities. The project would allow the transfer station to receive a total of 1,150 TPD of waste and recyclables. Hours of operation would be expanded to include Sundays from 8:00 a.m. to 4:00 p.m.;current hours of operation Monday through Saturday would not change. Operations associated with the expanded transfer station could substantially increase noise levels at nearby noise-sensitive residential locations, at the Trinity Community Church,and at nearby industrial facilities from existing conditions. Under the project, Sunday operations would be limited to self-haul drop-off activities. Noise generated by such activities would be limited to the operation of public self-haul vehicles and would not significantly affect activities associated with the Trinity Community Church on Sundays. The use of heavy-duty collection and transfer trucks, the tub grinder,bucket loaders,roll-off trucks and other on-site noise-generating equipment would be prohibited. Representatives of the church were contacted for information on the use of the church Mondays through Saturdays when transfer station operations would be at their peak. Mae Smith,President of the Trinity Community Church, indicated that church activities occur on Wednesday evenings at 7:30 p.m. and occasional meetings are held on Tuesdays afternoons from roughly 1:00 to 3:00 p.m. (Smith,2000). The only hours where transfer station operations could affect church operations would be during Tuesday afternoon meetings. Authorized representatives of the church submitted a letter to the project applicant dated June 18, 1999 in support of the project. The letter states that church representatives have"no opposition to the proposed expansion of the Stockton Scavengers Association Transfer Station and Materials Recovery Facility located at 1240 Navy Drive. In connection with [the proposed expansion] Stockton Scavengers agrees that any operation on Sunday's will be limited to the general public use of the facility (Smith, et al., 1999)." The DNL standard is best applied to those types of uses that are sensitive to noise and are present for the duration of the day, such as residences and hospitals. Results of the survey of church activities indicate that proposed site operations would overlap with church activities for a couple of hours each week. The City does not have property line performance standards for churches other than the DNL standard. It is not expected that the operation of the transfer station would substantially affect the noise environment of the church. Vehicle operation at the transfer station would continue to occur in proximity to church activities. For the reasons described above,noise impacts to Trinity Community Church users would be considered less than significant and mitigation measures would not be required. Stork-ton ScavengerTransJer Station Expansion III.D.13 ESA/990190