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r <br /> f <br /> Identified Contamination Source Evaluation & Recommendations <br /> The aCc:e <br /> nt property to> the This facility has the potential to impact the <br /> southwthe Site-is the PG&E Site in the event of a transformer <br /> Valley Substation. PCB- <br />. 9. explosion. This would be an unlikely,-- <br /> containing insulating oil and event, and there is no evidence that such <br /> nitrogen gas are maintained at that an event has taken place. <br /> facility. (Current off-site) <br /> Agricultural chemical permits <br /> indicate that the Site has been used <br /> for corn, oats, and pasture Ian No vidence of violations of the <br /> since 2005. Three Restricted Us ication permit was identified. The <br /> 10. Products were applied to the Site; owner should be aware that residues may <br /> these contained the . active remain even when chemicals are applied <br /> ingredients chlorpyrifos and as permitted. <br /> permethrin. (Current and past on- <br /> site) <br /> EHD data for two groundwater wells <br /> within one-quarter mile of the Site <br /> indicates that DBCP was detected It appears that ground water in the area <br /> at 0.2 ppb in one well; it was not contains DBCP. Per EHD requirements, <br /> 11. detected in the other. The an on-site well will be tested for DBCP as �^ <br /> Maximum Contaminant Level (MGL) part of the Soil Suitability Study to be <br /> set by the US EPA for DBCP is 0.2 conducted subsequent to this report. <br /> ppb. (Current and past on- and off- <br /> site) <br /> Old concrete irrigation pipes may contain <br /> Agricultural irrigation infrastructure asbestos. If any such pipes are to be <br /> may be present on the Site from disturbed, the asbestos content should be <br /> 12' past farming operations. (Past on- determined, and any material found to ��- <br /> site) contain asbestos should be dealt with in <br /> accordance with local, State, and Federal <br /> regulations. <br /> 9.0 CONCLUSIONS <br /> This SSCR was prepared for the Ray-Mar Farms property, 31005 East Dodds Road, <br /> Oakdale, California, to identify evidence_of any-:0n site, current or past, sources of <br /> contamination. Overall, the Site appears well maintained. Several potential sources of <br /> contamination, typical of similar properties in the area, have been identified and <br /> summarized in Section 8.0. The San Joaquin County Environmental Heath Department <br /> will review this report and notify the property owner if any action is required at this time. <br /> LOGE1012 Page 9 <br />