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. Investigation/Remedial Feasibility Study Work Plan <br /> Shockey and Sons Trucking <br /> 850 Milgeo Avenue <br /> Ripon, California <br /> 1.0. INTRODUCTION <br /> At the request of Mr. Lee Shockey, Advanced GeoEnvironmental, Inc. (AGE) has prepared the <br /> enclosed Work Plan for additional site assessment and a feasibility test at the above reference site <br /> as requested by your office in a letter dated 21 April 1999. The scope of work includes the <br /> installation of four soil probe borings and the performance of a ground water extraction pilot study. <br /> The location of the site is depicted in Figure 1- Location Map. A plan of the site is included in <br /> Figure 2 -Site Plan. <br /> The investigation is performed in accordance with San Joaquin County Public Health Services - <br /> Environmental Health Division (PHS-EHD) and Central Valley Regional Water Quality Control <br /> Board (CVRWQCB) guidelines for the investigation of underground storage (UST) sites. <br /> The purpose of this Work Plan is to evaluate the lateral extent of dissolved petroleum hydrocarbons <br /> and to evaluate feasibility and cost effectiveness of remediation alternatives of hydrocarbon- <br /> impacted soil and ground water at the site. <br /> 2.0. BACKGROUND <br /> 2.1. SITE LOCATION <br /> The site is located on west side of Milgeo Avenue at the intersection Wilma Road, adjacent to <br /> Highway 99. The property is zoned industrial and is presently utilized as a distribution warehouse. <br /> Local land use in the immediate vicinity of the site is agricultural and industrial;'residential areas are <br /> located south of the site. The site is further described as'being located in the southeast quarter of <br /> Section 19, Township 2 South , Range 8 East, Mount Diablo Base and Meridian (Manteca <br /> Quadrangle, 7.5-Minute USGS Topographic Series, 1968, photo revised 1987). <br /> 2.2. UNDERGROUND STORAGE TANK REMOVAL <br /> It is our understanding that six USTs were removed from three separated excavations on the property <br /> in April 1994: one waste oil-UST, one diesel UST,and four unleadedgasoline USTs. Petroleum <br /> -_ hydrocarbons were detected in soil samples colIected from beneath the USTs at the time of removal. <br /> Soil excavated during the UST removal was.used to backfill each excavation. Clean soil was <br /> imported to "cap" each excavation'. <br /> Advanced GeoEnvironmentnl,Inc.. - _ <br />