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QUARTERLY REPORT <br /> Grant Line Gas & Food <br /> 2420 Grant Line Road <br />' Tracy, CA <br /> December 1994 <br /> 1.0 INTRODUCTION <br /> In accordance with a request from Mr Joe Toste, Geological Audit Services, Inc <br /> (GeoAudit) has prepared this Quarterly Report for the installation and sampling of soil <br />' borings and monitoring wells at 2420 Grant Line Road in Tracy, California (the site) The <br /> location of the site is illustrated in Figure 1 A plan of the site is illustrated in Figure 2 <br />' 2.0 BACKGROUND <br />' 2.1 Site Location <br /> The site is located on the southeast corner of Grant Line Road and Toste Road in a rural <br /> area west of Tiacy, California (Figure 1) Interstate 205 is located approximately 200 feet <br /> northwest of the site The site is currently occupied by Grant Line Gas & Food, a gasoline <br /> service station and mini-mart establishment <br /> 2.2 Underground Storage Tank Removal <br />' On May 20, 1993, soil samples were collected fiom beneath the former product lines at the <br /> site Analysis of the soil samples indicated that hydrocarbon impacted soil was present in the <br /> area of the former product lines The investigation was performed and reported by Advance <br />' Soil Technology, Inc (AST) <br /> On June 30, 1993, three underground storage tanks (UST's) were removed from the site <br />' two 7,500-gallon unleaded gasoline tanks and one 5,000-gallon diesel tank The tanks were <br /> removed by Walton Engineering <br />' Gioundwater was encountered in tine tank excavation, groundwater samples were collected <br /> from the tank excavation Analysis of the samples indicated that hydrocarbon impacted <br />' groundwater was present at the site <br /> I <br /> pealogol Audi�.�� luc 1 <br /> SGW06 lOLO-W ...t. <br /> Ou S Pawl OR Int 94 <br /> 1 <br />