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E <br /> �.a <br /> f 3.3 L ^•aQ_1 Wells <br /> 1 No domestic water supply wells or irrigation wells are in the <br /> immediate proximity of the site. <br /> 3.4 Surrounding Area <br /> l : The site is located within the urban center of the City of <br /> Stockton. It is surrounded by retail facilities, office building <br /> and commercial developments. <br /> s � <br /> 3.5 Utilities <br /> There are no known septic tanks within the area. Also, since the <br /> site is an active construction site, the grade has been excavated <br /> below the depth normally used for underground utilites. No <br /> underground utilities are located on the site. All public <br /> utilities for the area are located beneath the adjacent streets. <br /> 4.0 TANK HISTORY <br /> No information regarding the tank history is available. Initial- <br /> ly, during the tank removal stage, five tanks were identified. <br /> These five tanks were identified as T1 through T5 as shown on <br /> Figure 2. The. size and previous contents of the tanks is as <br /> follows: <br /> o T1 - 5,000 gallon super unleaded gasoline <br /> o T2 - 10,000 gallon unleaded gasoline <br /> �- o T3 - 10,000 gallon leaded gasoline <br /> i ; o T4 - 550 gallon leaded gasoline <br /> o T5 - 550 gallon leaded gasoline <br /> � R During the course of removing these five tanks, two additional <br /> tanks were discovered. One was a waste oil tank and one was a <br /> sand filled tank. These tanks were designated T6 and T7 respec- <br /> tively. Their sizes were approximately 500 gallons for T6 and <br /> 800 gallons for 127. <br /> While removing tanks T6 and T7, another two sand filed tanks were <br /> discovered. These tanks were the same size as T7. These tanks <br /> were also removed. <br /> Upon completion of the tank removal, soil samples were taken from <br /> beneath each tank. For tanks T-2 through T-5, two samples were <br /> taken from beneath each. Samples were typically taken from <br /> beneath the tank fill spout area and from beneath the tank end <br /> area (designated by b) . For the remaining tanks (T1, T6, T7, T8 <br /> and T9) only one sample was gathered from beneath the fill spout <br /> area. For a complete description of the tank removal/sampling <br /> ! activities, refer to Appendix A which contains the tank removal <br /> field sampling report. <br /> 6 - <br />