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2.3 Groundwater Conditions <br /> Information sources prepared by the California Department of Water Resources (DWR) and the <br /> CVRWQCB were reviewed for information pertaining to groundwater quality and occurrence in the <br /> vicinity of the Site. <br /> The DWR provided a copy of the Water Well Drillers Report for the domestic well located at the <br /> 011110 Site, which indicates that the-well'was'installed in 1969 da depth of 46 meters (m) (150 feet) below <br /> 0 ground surface (bgs). Perforations`in the well exist between 13 and 26 m (43 and 85 feet) bgs. <br /> Groundwater was encountered approximately 15 in(50 feet)bgs. The well was overdrilled in 1970 io— t <br /> i <br /> a depth of 73 m (241 feet)�The Site utilized the well water for drinking water between 1970 and <br /> 1991. A copy of the well report is presented in Appendix B. <br /> The nearest known water well to the Site (DWR Well ID 02SO5E29CO1M) is located approximately <br /> 0.8 km (0.5 mile) east of the Site. The water level in this well fluctuated between 1959 and 1974 at <br /> depths ranging from 1.7 to 2.6 m (5.5 to 8.5 feet) bgs. I formation obtained from the City of Tracy <br /> Public Works indicates that the general groundwater flow in the site vicinity is directed to the <br /> northeast. <br /> Review of the CVRWQCB Basin PIan indicates that t e Site is located in the San Joaquin Delta <br /> Hydrologic Unit. The Basin Plan further indicates that gr undwater occurring within the San Joaquin <br /> Delta Hydrologic Unit has "designated beneficial" uses for municipal and domestic supply,. <br /> agricultural supply, and industrial service and supply purposes. <br /> Project No.58225-06-146 -6- May 25,2001 <br />