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4a <br /> a <br /> 4 <br /> KLEINFELUFR <br /> 1 EXECUTIVE SUMMARY <br /> This is a work plan to perform a second phase ground water assessment investigation at the <br /> Nomellini Construction facility, Stockton, California. The San Joaquin Local Health <br /> District (SJLHD) has requested assessment of the vertical and horizontal extent of <br /> contamination based on the analytical results of soil samples collected from an open tank <br /> excavation at the site. <br /> f <br /> The collection of samples from radial borings is proposed to assess the presence of <br /> Petroleum hydrocarbons contaminatio.a in the unsaturated soil, and the installation of <br /> monitoring wells is proposed to provide an initial assessment of the ground water. The <br /> SJLHD requires submittal of a work plan prior to issuing a boring permit for drillu,g or <br /> monitoring well installation_ <br /> A copy of this work plan should be sent to SJZ <br /> 1ID and the Regional Water Quality <br /> Control Board for their review and consideration. Once the SJLHD has issued the boring <br /> permit,Kleinfelder will implement the scope of work presented in thisP lan. <br /> 3 <br /> 148-88-2109 1 <br />