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Identified Contamination Source Evaluation & Recommendations <br /> 5. A windmill-powered well located near the No further information related to the <br /> north sjdc�of the Site was closed down windmill-powered well was identified. <br /> and cement over 40 years ago, <br /> according r. Borba. (Past on-site) <br /> 6. Piles of wood and concrete were Waste tires represent a fire hazard and <br /> observed to the west of the arena. Four should be disposed of appropriately. <br /> tires, some waste metal, and an Concrete debris should be addressed as <br /> inoperable truck were observed in the discussed in Item 8, below. Any other <br /> area as well. (Current on-site) debris not intended for future use should <br /> be appropriately disposed as part of <br /> routine "housekeeping." When the truck <br /> is moved, the ground surface beneath <br /> should be inspected, and any stained soil <br /> removed and appropriately disposed. <br /> 7. A total of 15 pole-mounted transformers Transformers are of concern because the <br /> were observed on the Site; some, but oil within them may contain PCBs, which <br /> not all, of the transformers bore stickers can contaminate soil in the event of a <br /> indicating that they are free of leak. The property owner may wish to <br /> polychlorinated biphenyls (PCBs). contact the utility provider regarding the <br /> (Current and past on-site) PCB content of the transformers and any <br /> recommended action. <br /> 8. Agricultural irrigation infrastructure may Old concrete irrigation pipes may contain <br /> be present on the Site from past farming asbestos. If any such pipes are to be <br /> operations. (Current and past on-site) disturbed, the asbestos content should be <br /> determined, and any material found to <br /> contain asbestos should be dealt with in <br /> accordance with local, State, and Federal <br /> regulations. <br /> 9. Two gallons of transformer oil were It appears that the spill was cleaned up to <br /> spilled on the Site in February of 2008. the satisfaction of the interested parties <br /> The spill took place on the far eastern and regulatory agencies. <br /> side of the Site, south of the arena, <br /> along Escalon-Bellota Road. The oil <br /> was tested and found to contain less <br /> than 1 part per million of PCBs. PG&E <br /> performed the clean-up. (Past on-site) <br /> LOGE 1414 Page 8 <br />