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A G ma - E t 1 kn QGSOLOOIC&sscsmti WOR1C�LAN 6491'F'SSreet,Banta,California Delta Project No.40-88-481 Page 0 Ground water samples were collected from monitoring well WiW-l and a domestic well located about 50 feet west of the property line(Figure 3). The ground water samples were sent to a California- certified laboratory and analyzed for STEX, EDC, EDB, and TPH. Results for the analyses are presented in Table 2. Laboratory reports for water analyses are included in Appendix B. As shown in Table 2,with the exception of EDC,concentrations of all constituents are below action = levels. The level reported for EDC is 7.30 parts per billion which is above the action level for that constituent. 2.0 SITE DESCRIPTQ 2.1 Area or investigation }s The site is located at 5491 "F"Street(Figure 1; at the intersection of"F"Street and Seventh in Banta, California. The site is located in a rural residential area with private residences Iocated adjacent to the property. 2.2 Site Town X and Surface Water Features Ground surface elevations across the site vary less than one foot. The regional ground surface slopes from southwest to northeast toward Tom Slough, located about 1.5 miles north of the site. �.r 2.3 Site HlstQry f From information provided from Mr.Moore,Jerry and Diane Moore purchased the property from k a Ms.Elsie Ceciliana is 1975. The site is currently leased to Moore Petroleum.Inc.and is operated as a bulk storage facility. There are nine underground storage tanks (USTs) at the site. Tank information is presented in Table 3. A precision tank test has been performed on all tanks and product lines. Results from the tank tests a indicate the tanks and lines are tight. %s 2.4 Well Inventory i , There is one known domestic well in the vicinity of the site(Figure 3). However,to more thoroughly tr. document the presence of wells near the site,a well inventory has been initiated at the Department . of Water Resources in Sacramento, California. Results of this inventory.will be reported in the -- -- - --Preliminary-Hydrog.,ologie-Assessnlenl-Report_-that will_be-subm tted following completion of the activities described in this work plan. V E .,