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Identified Contamination Source Evaluation <br /> 3. Three wells and a septic system The main well and the septic system <br /> serve the structures on the Site. are currently in use. According to <br /> (Current on-site) Mr. Olagaray, the older well is only <br /> used infrequently due to salinity <br /> levels, and the most recent well is <br /> being reserved for future use. The <br /> San Joaquin County Environmental <br /> Health Department provides <br /> regulatory oversight for wells and <br /> septic systems. <br /> 4. Three above-ground storage tanks The San Joaquin County <br /> (10,000-gallon diesel, a 1,000- Environmental Health Department <br /> gallon diesel, and a 500-gallon provides regulatory oversight for <br /> gasoline) are located within above-ground storage tanks. <br /> secondary containment on the Site. <br /> An Aboveground Petroleum <br /> Storage Program Survey Form <br /> from 2009 lists a 500-gallon diesel <br /> tank and a 10,000-gallon diesel <br /> tank on the Site. A truck carrying <br /> five oil or fuel tanks with dispensers <br /> was observed in the pole barn. <br /> (Current on-site) <br /> 5. Several areas of soil staining were It is anticipated that the soil staining <br /> observed near the pole barn and will be addressed by the owner as <br /> shop on the Site. (Current on-site) part of routine site maintenance. <br /> 6. Three pole-mounted transformers The utility provider may have <br /> were observed near the shop on additional information about the <br /> the Site. No stickers to indicate PCB content of the transformers. <br /> that the transformers are PCB-free <br /> were observed, but no staining or <br /> leakage was noted. <br /> (Current on-site) <br /> 7. A pile of tires and two automotive Mr. Olagaray indicated that the tires <br /> batteries were observed near the and batteries belong to one of the <br /> duplex. (Current on-site) tenants and will either be used or <br /> disposed. <br /> LOGE 2548 12 <br />