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a Removal of localized areas of deeper soil containing elevated concentrations of metals or pyrolytic oil. Description of Environmental Setting: The proposed project area is located within an abandoned gravel pit.Although there are no current operations on the Site, the Site is presently exposed to moderate to high ambient noise levels. The primary source of moderate ambient noise affecting the project site is vehicle traffic along South MacArthur Drive and 1-580. The Site is also located within the City of Tracy Airport's Airport Overlay Zone. This results in occasional high ambient noise levels. Analysis of Potential Impacts: Describe to what extent project activities would: a. Exposure of persons to or generation of noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies. No Impact. The project is located within an abandoned gravel pit. The pit walls will reduce the potential for noise associated with remediation activities to affect areas beyond the property boundary. The nearest sensitive receptor, a residence, is located approximately Y mile east of the site. According to the San Joaquin County Noise Ordinance, Section 9- 1025.9(c)(3), the noise created by construction activities are exempt, provided the activities do not take place before 6:00 AM or after 9:00 PM during the day. After activities are completed, the Site will not be inhabited nor used for commercial purposes, therefore, no increase in noise is anticipated. b. Exposure of persons to or generation of excessive ground-borne vibration or ground- borne noise levels. No Impact. During removal and excavation activities, short-term groundborne noise and vibration may occur, but would be considered negligible.Additionally, these effects would be temporary and within daylight hours. After activities are completed, no ground-borne noise or vibration is expected to occur. C. A substantial permanent increase in ambient noise levels in the vicinity above levels existing without the project. No Impact. The land use on the Site will not change. There will be no permanent increase in ambient noise levels in the vicinity. After activities are completed, the Site will not be inhabited nor used for commercial purposes, therefore, no increase in ambient noise is anticipated. d. A substantial temporary or periodic increase in ambient noise levels in the project vicinity above levels existing without the project. No Impact. During removal and excavation activities, negligible ambient increases in noise levels may occur.Also, these effects would be temporary and within daylight hours. After activities are completed, no temporary ambient increases in noise levels are expected to occur. Findings of Significance: 38