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Site Background Information <br /> Page 2 of 4 <br /> According to Mr Joe Toste Jr Property owner of Tracy Marine Sales the two domestic water wells <br /> on Toste Road supply water to Tracy Marine Sales and the remaining businesses located on Toste <br /> Road The well located at 2450 Toste Road is located approximately 125 feet west of Tracy Marine <br /> Sales The well is completed to a total depth of 220 feet below surface grade(bsg) and contains well <br /> screen from 195 feet to 220 feet bsg The well located at 2480 Toste Road is approximately 250 feet <br /> southwest of Tracy Marine Sales According to Mr Joe Toste, this well is completed to a total depth <br /> of 200 feet No other information could be obtained regarding this well or the domestic wells <br /> Eobserved at 2040 and 2120 Grant Line Road A table of the wells located in the sensitive receptor <br /> survey is shown below <br /> Property Owner Distance/direction Comments <br /> Address from site <br /> Joe Toste 125 ft west Domestic well located at Curtiss Pontiac-Buick <br /> 2450 Toste Road <br /> Joe Toste 250 ft southwest Domestic well located at end of Toste Road <br /> 2480 Toste Road <br /> 2120 Grant Line Road 1,600 ft east Domestic well located 150 feet west of intersection of <br /> Grant Line Road and Corral Hollow Road <br /> 2040 Grant Line Road 1,700 ft east Domestic well located 50 feet west of intersection of <br /> Grant Lune Road and Corral Hollow Road <br /> r 7/11, Citgo Fueling Station 200 ft east 3 ground water MWs located at Citgo gas station <br /> I 2360 Grant Line Road <br /> f A review of files on record with the San Joaquin County Environmental Health did not locate any <br /> f septic pits or septic systems located on the site <br /> UNDER GROUND STORAGE TANK REMOVAL <br /> Two USTs were removed from the site on 31 October 1996 The dispensers and product line(s)were <br /> removed during excavation of the USTs Tanks and associated dispensers had been utilized for <br /> gasoline After being removed,the tanks were visually inspected and appeared to be intact,with no <br /> Eholes or extensive corrosion noted Soil samples were collected <br /> Total petroleum hydrocarbons quantified as gasoline (TPH-g), purgeable aromatics (benzene, <br /> toluene,ethylbenzene and total xylenes BTEX)and methyl tertiary butyl ether(MTBE)were present <br /> in each of the samples analyzed in concentrations exceeding the method detection limits TPH-g was <br /> idetected to the soil samples as high as 3,400 milligrams per kilogram (mg/kg) <br /> • BTEX and MTBE compounds were detected as high as 430 mg/kg of xylene and 770 mg/kg of <br /> MTBE Total lead was detected at background levels <br /> Advanced GeoEnvironmental,Inc <br />