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Monitoring Well Installation and Quarterly Report - First Quarter 2002 <br /> QUICKI-KLEEN CAR WASH <br /> ' 707 East Yosemite Avenue, Manteca, California <br /> 10. INTRODUCTION <br /> ' At the request of Ms MaryLou Pontes of Quicki-Kleen Car Wash,Advanced GeoEnvironmental, <br /> Inc (AGE) has prepared this monitoring well installation and quarterly report for the property <br /> located at 707 East Yosemite Avenue, Manteca, California The site and the surrounding area are <br /> illustrated on Figure 1 Structures,boring and well locations are illustrated on Figure 2 Background <br /> information is summarized in the AGE-prepared Preliminary Investigation and Evaluation Report <br /> ' (PIER), dated 19 March 2001 Soil and ground water analytical data from the current and previous <br /> investigations can be found in Tables 1 through 7 <br /> ' 2.0. PROCEDURES <br /> ' Three ground water monitoring wells (MW 1, MW2 and MW3)were installed in January 20b2 and <br /> developed and sampled in February 2002 Field work was performed in accordance with guidelines <br /> issued by the Central Valley Regional Water Quality Control Board (CVRWQCB) for the <br /> investigation of underground storage tanks (UST) sites <br /> 21 DRILLING AND SAMPLING <br /> f <br /> On 30 January 2002, three soil borings were advanced at the site The soil borings were advanced <br /> ' using a CME-75HT drill rig, equipped with 8 25-inch diameter hollow-stem augers, to install <br /> monitoring wells MW1, MW2 and MW3 The drill rig and three-man crew were supplied by <br /> Mitchell Drilling Environmental Auger returns generated by drilling were containerized in properly <br /> ' labeled DOT-approved model 17H 55-gallon drums and stored on-site <br /> ' Soil samples were collected ahead of the dell bit using a California modified split-spoon sampler <br /> loaded with three pre-cleaned 2-inch by 6-inch brass sleeves The samples were collected from <br /> monitoring well pilot bonngs MW 1,MW2 and MW3 at five-foot intervals,beginning at 5 feet below <br /> surface grade (bsg) using a 140-pound hammer to advance the sampler The number of blows <br /> required to advance the sampler over each 6-inch increment of the 18-inch sampling interval was <br /> recorded on the boring logs Sampling equipment was washed in an Alconox solution and rinsed <br /> with water prior to each sampling run to minimize 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 McCampb ell Analytical,Inc (MAI),a State of California Department of Health Services <br /> • (DHS)-certified analytical laboratory <br /> Advanced Geo Environmental,Inc <br />