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Identified Contamination Source Evaluation & Recommendations <br /> 13. A total of 11 pole-mounted transformers Transformers are of concern because the <br /> were observed on the Site. All three oil within them may contain PCBs, which <br /> appeared relatively new; at least one can contaminate soil in the event of a <br /> was labeled PCB-free. (Current on-site) leak. The property owner may wish to <br /> contact the utility provider regarding the <br /> PCB content of the unlabeled <br /> transformers and any recommended <br /> action. <br /> 14. Five mapped gas wells were identified Because the wells are managed under <br /> on the Site. One of these is active but Division of Oil and Gas oversight, no <br /> has been idle since 1992, one is plugged significant impacts to the Site are <br /> and abandoned, and the other three anticipated. <br /> were dry holes. Five additional gas <br /> wells were identified within one-quarter <br /> mile of the Site. (Current and past on- <br /> and off-site) <br /> 15. According to a 1990 monitoring well Live Oak was not able to determine any <br /> permit, CH2M Hill drilled five monitoring further information about this project or <br /> wells around the perimeter of an area the monitoring wells. The property <br /> owned by K&L Farms, including the owners may wish to contact the City of <br /> subject Site. The figure attached to the Tracy for additional information. <br /> permit is labeled "City of Tracy Sludge <br /> Land Application Demonstration Project <br /> Area Map." (Past on- and off-site) <br /> 16. One underground gas transmission Natural gas pipelines are considered to <br /> pipeline is located along Durham Ferry be more of a safety issue than a <br /> Road on the south side of the Site. contamination source. Addressing these <br /> (Current off-site) safety issues is beyond the scope of this <br /> report. <br /> 17. Three hazardous materials incidents Because these incidents took place off <br /> were identified for the vicinity of the Site; the project Site, and the material was in <br /> all three involved abandoned material in containers, no impact to the Site is <br /> containers. (Past off-site) anticipated. <br /> LOGE 1115 Page 13 <br />