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PON <br /> ,x <br /> In summary minor groundwater contamination has occurred as a result of over-spillage <br /> from the underground waste oil tank. The majority of contaminated soil has been removed <br /> i r for off-site disposal and samples were collected from the walls of the excavation for <br /> verificatiofil p,;;,—poses, <br /> The presence of trace amounts of solvent and petroleum hvdrocarbon products in the <br /> groundwater stimulates the need for a groundwater monitoring program. Hoy <br /> ever since <br /> the levels of contamination is below the EPA's drinking water standards Primary MCLS <br /> 1. ` <br /> (Maximum Contaminant Level) and the State of California Action Levels, there is no <br /> immediate hazard to public health and safety. <br /> i•w, - <br /> ;. <br /> 1 _ <br /> .. - <br /> 3 <br />