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GeoStrategies <br /> QUARTERLY GROUNDWATER MONITORING <br /> AND SITE SUMMARY REPORT <br /> at i <br /> Former Discovery Chevrolet <br /> 1615 1 Vh Street <br /> Tracy, California <br /> Report No. 8146.02-1 <br /> INTRODUCTION <br /> At the request of Ms. Michelle Nokes of Winner Ford, GeoStrategies. (GSI) has prepared <br /> this Quarterly Monitoring and Site Summary Report which summarizes the results of the first <br /> quarter 1995 groundwater monitoring and sampling at the above referenced site. Objectives <br /> of the quarterly groundwater monitoring and sampling are to evaluate changes in <br /> groundwater levels and changes in dissolved petroleum hydrocarbon concentrations in the <br /> shallow groundwater beneath the site. Field work conducted at the subject site during this <br /> quarter was performed by Gettler-Ryan Inc. (G-R) of Dublin, California. <br /> The scope of work described in this report is intended to comply with the State of California <br /> Water Resources Control Board's Leaking Underground Fuel Tanks (LUFT) Manual and <br /> California Underground Storage Tank Regulations, 1994, the Regional Water Quality <br /> Control Board's Tri-Regional Board StaffRecomniendations for Preliminary Investigation and <br /> Evaluation of Underground Tank Sites, and San Joaquin County Environmental Health <br /> Division (SJCEHD) guidelines. <br /> SITE BACKGROUND <br /> The subject site is located adjacent to the Southern Pacific Railroad tracks west of the <br /> intersection of Lincoln Boulevard and West Eleventh Street in Tracy, California (Figure 1). <br /> The site vicinity is relatively flat, and is situated at approximately 45 feet above mean sea <br /> level (MSL). The Lower Main Canal is located approximately 0.2 miles south of the site. <br /> Discovery Chevrolet formerly occupied the site. At that time, two gasoline underground <br /> storage tanks (USTs) were located in a common excavation east of the service bays and north <br /> of the showroom, and one waste oil UST was Iocated southwest of the service bays and west <br /> of the showroom (Figure 2). Currently, the site is occupied by Tracy Chevrolet. It is our <br /> understanding that no USTs are currently utilized by Tracy Chevrolet. <br /> 3035 Prospect Park Drive, Suite 110 Rancho Cordova, CA 95670 (916) 631-1314 Fax (916) 631-1317 <br />