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I None were observed Based on the low concentration of petroleum hydrocarbon constituents and . depth of soil impact, there is no evidence of any threat to ecological receptors from the site soils 2.5 Food Chain Transfer There is no concern for food chain transfer of petroleum hydrocarbons because of the depth of contamination and the extensive cover of asphalt and buildings 26 UtilitieslWells GeoTech Utility Locating (GeoTech)of El Cerrito, California was used to identify underground utilities at the site Water and natural gas lines enter the site from East 12"` Street at a depth of 3 5 feet bsg The electrical line ties in from an overhead poles and runs to an exterior transformer at a depth of 4 feet bsg, and then to the building at a depth of 3 feet to 4 feet bsg Fuel and sensor lines lead from the UST to the building at a depth of 3 feet bsg Around the perimeter of the building is an electrical ground wire at a depth of 2 feet bsg The storm dram line is located at depths of 1 foot to 2 feet bsg, which lead to the storm drain system along the street lie The deepest utilities located at or near the site are SBC telecommunications cables and city sanitary sewer lines The SBC telecommunications cables run along Holly Street at depths up to 8 feet bsg The main sanitary sewer line runs along East 12" Street at depths of S feet to 9 feet bsg, with the sanitary sewer feeder line from East 12" Street to the site located at depths of 5 feet to 5 5 feet bsg No utilities were identified on the property at depths great enough to be migration pathways for the contaminants of concern The underground utility pathways are depicted in Figure 8 EDR was retained by Shaw to review water well records within a one-mile radius of the site Records from the U S Environmental Protection Agency's (EPA) Office of Drinking Water Public Water Systems (PWS), the United States Geological Society (USGS), and California's Department of Health Services Drinking Water Quality Database were reviewed One well was identified within 2,000-feet of the site The well is reportedly located approximately 600 feet to the southwest of the site, in the upgradient direction The well is listed under the name of the Currier Estates Water Corporation The City of Tracy also operates a series of municipal wells, iCNCD104-28-031SHARElUSl103-0027 doe 12