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INC.I <br /> GETTLER - RYANN <br /> SECOND QUARTER 1998 STATUS REPORT <br /> at <br /> Former Discovery Chevrolet <br /> 1615 1 P"Street <br /> Tracy, California <br /> Report No. 948146.05-6 <br /> INTRODUCTION <br /> At the request of Ms. Michelle Nokes, Gettler-Ryan Inc. (GR) has prepared this Second <br /> Quarter 1998 Status Report that summarizes the results of the second quarter 1998 <br /> groundwater monitoring and sampling at the above referenced site. Objectives of the <br /> quarterly groundwater monitoring and sampling are to evaluate changes in groundwater <br /> levels and changes in dissolved petroleum hydrocarbon concentrations in (lie shallow <br /> groundwater beneath the site. <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 tine, two i?aS01111C LIndC1' I'Onlld <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 located southwest of the service bays and west <br /> of the showroom (Figure 2). Currently, the site is vacant. <br /> Previous Environmental Work <br /> Based on information supplied by Ms. Nokes, we understand that the three USTs were <br /> removed in April 1993. Four soil samples were collected from the base of the gasoline UST <br /> excavation at depths of approximately 9 to 10 feet below ground surface (bgs), one soil <br /> sample was collected from beneath the product dispenser at approximately 5.5 feet bgs, and <br /> one soil sample was collected from the base of the waste oil UST excavation at <br /> approximately 7.5 feet bgs. Groundwater was not encountered during UST removal. <br /> Information supplied by SJCEI-ID indicates that the product piping that ran from the gasoline <br /> 948146.05-5 <br /> 6747 Sierra Court , Suite J Dublin , California 94568 ( 5 10 ) 551 - 7555 <br />