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Identified Contamination Source Evaluation & Recommendations <br /> Transformers are of concern because the <br /> Four pole-mounted transformers oil within them may contain PCBs, which <br /> were observed on the Site Three <br /> Three can contaminate soil in the event of a <br /> 6. leak. The property owner may wish to <br /> (Current on-site)these were labeled PCcontact the utility provider regarding the <br /> ( PCB content of the unlabeled transformer <br /> and any recommended action. <br /> One domestic well, one irrigation Any wells or septic systems which will not <br /> 7. well, and at least one septic system remain in use should be properly <br /> are located on the Site. (Current abandoned under EHD oversight. <br /> on-site) <br /> An above-ground fuel tank is Petroleum products from past use could <br /> located on the south side of the remain in the on-Site soils. The only way <br /> barn on the Site. According to the to determine the presence or absence of <br /> 8. owner, it has not been used for the these chemicals is by testing and <br /> past 14 years or longer. (Current analysis. Typically, any such testing is <br /> and past on-site) conducted at the property owner's <br /> discretion. <br /> EHD data indicates that DBCP was <br /> detected at concentrations of 0.26 <br /> to 2.96 parts per billion (ppb) at four <br /> groundwater wells within It appears that some groundwater in the <br /> approximately two miles of the Site. general area is contaminated with DBCP <br /> Nitrate was detected at and nitrate at levels well above the MCL. <br /> 9. concentrations of 18 to 135 parts The on-site domestic well was tested for <br /> per million (ppm) at eight wells these constituents as part of the Soil <br /> within the same search area. The Suitability Study, which will follow this <br /> Maximum Contaminant Level (MCL) report. <br /> set by the US EPA for DBCP is 0.2 <br /> ppb; the MCL for nitrate is 45 ppm. <br /> (Current and past off-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 /> 10. 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 /> LOGE1028 Page 9 <br />