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V <br /> Geo(ogica(Technics Inc. <br /> 2741 River(Rgad <br /> 9Kodesto,Caftfornna 95351 <br /> (209)538-6424/Ta-[#538-5852 <br /> Report <br /> ' Soil and Groundwater Investigation <br /> AST Site <br /> Ted Peters Trucking Co., Inc. <br /> 1985 Yosemite Ave. <br /> Manteca, CA 95336 <br /> Project No 701 2 <br /> April 20, 2001 <br /> ' 1.0 INTRODUCTION <br /> The site is located on the northern side of Yosemite Road, within the city limits of Manteca, <br /> ' . CA (see Figures 1 & 2) The property is owned by Ted Peters Trucking and operated as a <br /> commercial trucking facility Currently there are no underground storage tanks on the <br /> property <br /> ' On February 22, 1999, Ms Gail Wiggett of the CRWQCB-CVR and Mr Jeff Wong of the <br /> San Joaquin County Public Health Services, Environmental Health Division met with <br /> Ramona Booze of Ted Peters Trucking to inspect the facility at 1985 Yosemite Ave , <br /> Manteca Upon completion of their review, they requested that a work plan be prepared <br /> The plan was to describe the work to be perfonned to investigate the soil and groundwater <br /> of the property to determine if contamination may have been released from the operation of <br /> the aboveground diesel storage tanks and fuel islands and the truck washing area <br /> Geological Technics Inc prepared the work plan on April 12, 1999 It called for the <br /> installation of four monitoring wells around the areas of potential release On July 26, <br /> ' 1999, Geological Technics Inc supervised the installation of three monitoring wells and one <br /> hydropunch boring around the foriner ASTs, dispensers and sump Soil and groundwater <br /> samples collected from the wells and boring showed the presence of TPH-D, TPH-K, TPH- <br /> ' MO, BTEX and other volatile compounds On November 4, 1999, GTI and Del-Tech <br /> submitted a report of the well installation and initial monitoring results <br /> On January 19, 2000, Ms Gail Wiggett of CRWQCB-CVR issued a letter requesting the <br /> ' installation of a down gradient well and groundwater plume definition To achieve these <br /> objectives, GTI staff mobilized to the site on August 17 and 18, 2000, to supervise the <br /> installation of GeoProbe borings (see Figure 4) A total of 21 GeoProbe borings were <br /> ' attempted with probe refusal encountered at depths of 1 5 — 5 5 feet below grade surface at <br /> . seven of the locations One soil sample and one hydropunch type groundwater sample were <br /> collected from thirteen (13) boreholes Of these, ten soil and ten groundwater samples were <br /> analyzed for BTEX, TPH-G, TEPH-D and MTBE In addition, five soil and five <br />