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w <br /> r <br /> PRELIMINARY HYDROGEOLOGIC ASSESSMENT REPORT <br /> 5491 "F Street, Banta, California <br /> Delta Project No. 40-88-481 <br /> F Page 5 <br /> I TABLE 3 <br /> Tank Information <br /> i <br /> Size - Quantity Product Stored Age Status <br /> 10,000 gallons 2 Regular Leaded Gasoline 8 years Operating <br /> 10,000 gallons 3 Diesel 8 years Operating <br /> 10,000 gallons 1 Premium Unleaded Gasoline 8 years Operating <br /> 10,000 gallons 1 Regular Unleaded Gasoline 8 years Operating <br /> 350 gallons 1.f Kerosene 20 years Operating <br /> 350 gallons 1 Cleaning Solvent 20 years Operating <br /> 1 <br /> 2.4 Utility Survey <br /> Underground Service Alert (USA) was contacted to locate any underground utilities at the site before <br /> drilling began. The first 5 feet of the proposed boring was checked with a steel hand probe to insure no <br /> 1{ utilities would be encountered. <br /> 1 <br /> 2.5 Well Inventory <br /> An inventory of the existing water wells within a 112-mile radius of the site was conducted. This <br /> information was obtained from the California Department of Water Resources (DWR). A total of 20 <br /> wells*ere'noted and are presented in Table 4 with the year drilled and the type of well. Well locations <br /> that could be determined are plotted in Figure 4. <br /> i <br /> 2.6 Spill History <br /> 1 From the information provided, there has been no documented release of petroleum hydrocarbons at the <br /> site. The 3 gasoline-holding USTs were epoxy lined 3 years ago. At that time there was no indication <br /> of holes in any of the tanks. <br /> 1 <br /> t <br /> I ! <br /> i <br /> I ' <br />