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1 <br />' Quarterly Report - Fourth Quarter 1999 and First Quarter 2000 <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 The site and the <br /> surrounding area are illustrated in Figure 1 Structures, monitoring well locations are illustrated on <br />' Figure 2 <br /> The quarterly report is prepared 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 tank (CJST) sites <br /> Background information is summarized in the Preliminary Investigation and Evaluation Report <br />' dated 30 March 1999 and prepared by AGE <br />' 2.0. PROCEDURES <br /> Eight ground water monitoring wells were installed in November 1999 Eight ground water <br /> I monitoring wells were purged and sampled on 02 December 1999 and 13 January 2000 Field work <br /> was performed in accordance with PHS-EHD approved Site Assessment Work Plan Addendum <br /> dated 28 July 1999 <br /> I21 DRILLING AND SAMPLING <br /> In November 1999, eight 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 advance <br /> borings MW 1 through MW8 The drill rig and two-man crew were supplied by West Haz Mat <br /> Drilling Auger returns generated by drilling are stored on-site in labeled, 55-gallon Department of <br /> Transportation (DOT) approved drums, pending laboratory analysis <br /> Soil samples were collected ahead of the drill bit using a California modified split-tube sampler <br /> I loaded with three pre-cleaned 2-inch by 6-inch brass sleeves The samples were collected from <br /> monitoring well pilot borings MW-1 through MW-5 and borings MW-7 and MW-8, at five-foot <br /> intervals,beginning at 5 feet bsg using a 140-pound hammer to advance the sampler 18 inches The <br /> number of blows required to advance the sampler in 6-inch increments 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 avoid cross-contamination Samples were collected from boring MW-6 using a five- <br /> foot soil core barrel set to advance with the lead auger Soil samples were collected in 2 X 6-inch <br /> • brass sleeves at significant lithologic changes or at a minimum five-foot interval (See Appendix A) <br /> Advanced GeoEnviron me ntal,Inc <br /> I <br />