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This report is prepared by American Environmental Management Corporation (AEMC) <br />for Pacific Bell (Pac Bell) to present the findings of an underground storage tank (UST) <br />® removal project at 124 West Elm Street, Lodi, California (Figure 1). Presented in this <br />report are data pertaining to the excavation of two diesel fuel USTs with 550 -gallon and <br />2,000 -gallon capacities, the sampling and chemical testing of the soil adjacent to them, and <br />the backfill and compaction of soil into the excavations. <br />® The Pac Bell facility (site) is currently used as a telephone switching station. The diesel <br />fuel USTs described above were located at the eastern side of the building in the rear <br />parking lot area. A site detail map presents the tank locations in Figures 2 and 3. <br />® The 550 -gallon tank was constructed of single -walled steel and was buried at the base of a <br />20 -foot deep reinforced concrete vault. It was installed in the early 1950s by Pacific Bell <br />and was used to power an emergency electrical generator. <br />The 2,000 -gallon tank was constructed of single -walled steel and was buried approximately <br />10 feet deep in a location just to the northwest of the 550 -gallon tank. It was installed in <br />the 1970s to supply the backup electrical generators onsite and replaced the 550 -gallon <br />tank. The smaller tank was emptied and taken out of service at that time. <br />El <br />U <br />® riper-oe(ao-a) Page 1 <br />AMERICAN <br />