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Identified Contamination Source Evaluation & Recommendations <br /> 10. Three pole-mounted transformers were Transformers are of concern because the <br /> observed on Parcel -10. One of these, oil within them may contain PCBs, which <br /> located near a pumping station can contaminate soil in the event of a <br /> approximately one-quarter of the way up leak. The property owner may wish to <br /> the western side of the parcel, appeared contact the utility provider regarding the <br /> to have a potential oil leak; PG&E PCB content of the unlabeled <br /> indicated that the transformer is not transformers and any recommended <br /> damaged. The transformers were not action. <br /> labeled PCB-free. (Current on-site) <br /> 11. An Underground Storage Tank permit It is assumed that the permits on file are <br /> application from August 1989 was on file the result of a recordkeeping error. <br /> at the EHD. The permit indicated that <br /> two tanks of unknown content and size <br /> were once present on the Site; no other <br /> information was provided. Mr. Navarra <br /> indicated to Live Oak that there have <br /> never been underground storage tanks <br /> on the Site. <br /> 12. Accordingto�EHQre e 2 The incident was cleaned up to the <br /> a pile ofphetamine en or satisfaction of the agencies involved and <br /> � 9 <br /> parapherna arcel - there is no evidence of any residual <br /> 10. The pile was located halfway up the contamination. However, because no <br /> western side of the parcel. At the confirmation sampling was conducted, it <br /> recommendation of the OES, two inches cannot be conclusively stated that no <br /> of soil were removed from an area 8 by contamination remains. <br /> 11 yards in size by a clears-up <br /> contractor. Drums, canisters, and <br /> melted buckets were also removed. <br /> (Past on-site) <br /> 13. Two additional incidents on or adjacent The incidents were referred to DTSC or <br /> to Parcel -10 were identified by the OES. CalTrans; it is assumed that these <br /> Both took place on Highway 132 east of agencies removed the materials and <br /> Koster.—R ad; one involved activated performed any necessary additional <br /> c2— <br /> '::_�_—Woff7 <br /> rcoai� , ancf__ __ihe other cleanup. <br /> mtkxaFriphet�mrne lab was {Past on- <br /> site)�-- <br /> LOGE 1117 Page 16 <br />