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z7r <br /> HAN <br /> } <br /> 4 �- �•� �'. - "wT �k Y fN� k y, '7i� � iii, <br /> 5 <br /> eL^i` <br /> h3IN KLEINFELDER <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 <br /> ankexcavation at the site. <br /> The collection of samples From radial borings is proposed to assess the presence of <br /> petroleum hydrocarbons contamination in the unsaturated soil, and the installation of <br /> monitoring wells is proposed to provide an initial assessment of tb�e ground water. The <br /> SJLHD requires submittal of a work plan prior to issuing a boring permit for drilling or <br /> monitoring well installation. <br /> A copy of this work plan should be sent to the SJLHD 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 this plan. <br /> -� 148-88-2109 1 <br />