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1 <br /> 1 <br /> Quarterly Report - Second Quarter 2002 <br />' TRACY MARINE SALES <br /> 2353 Toste Road, Tracy, California <br />' 1.0. INTRODUCTION <br />' At the request of Mr Joe Toste, Jr , Advanced GeoEnvironmental, Inc (AGE) has prepared this <br /> quarterly report for the property located at 2353 Toste Road, Tracy, California Site background <br /> information is summarized in the AGE-prepared Additional Site Assessment Work Plan, dated <br /> 26 September 2000 The site and the surrounding area are illustrated in Figure 1 On-site structures, <br /> boring locations and monitoring well locations are illustrated on Figure 2 <br /> 2.0. PROCEDURES <br /> One ground water extraction well and one ground water observation well (EW1 and OWI) were <br /> installed and developed and eleven ground water monitoring wells (MWI through MWl l) were <br /> purged and sampled in June 2002 Field work was performed in accordance with guidelines issued <br /> by the Central Valley Regional Water Quality Control Board (CVRWQCB) for the investigation <br /> of underground storage tank (UST) sites <br /> I2 1 DRILLING AND SAMPLING <br /> On 27 .Tune 2002, two soil bonngs were advanced at the site The soil borings were advanced using <br /> I a CME-75 drill rig, equipped with 8 25-inch diameter hollow-stem augers to install observation well <br /> OW1 and and 15-inch diameter hollow-stern augers to install extraction well EWI The drill rig and <br /> three-man crew were supplied by Cascade Drilling Auger returns generated by drilling were <br /> containerized in properly labeled Department of Transportation (DOT)-approved model 17H <br /> 55-gallon drums and were stored on-site <br /> Soil samples were collected from well boring OW1 ahead of the drill bit using a California modified <br /> split-spoon sampler loaded with three pre-cleaned 2-inch by 6-inch brass sleeves The samples were <br /> collected from observation well pilot boring OW1 at 15 feet and 20 feet below surface grade (bsg) <br /> I using a 140-pound hammer to advance the sampler The number of blows required to advance the <br /> sampler over each 6-inch increment of the 18-inch sampling interval was recorded on the boring <br /> logs Sampling equipment was washed in an Alconox solution and rinsed with water prior to each <br /> sampling run to minirnize cross-contamination <br /> For each sample, both ends of the leading or other selected sleeve were covered with Teflon sheets, <br /> capped and sealed with tape The samples were labeled,stored on ice and transported under chain-of- <br /> custody to Cal Tech Environmental Laboratories(CTEL),a State of California Department ofHealth <br /> Services (DHS)-certified analytical laboratory <br /> I <br />