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4 J <br /> Crossroads R/W and Suzanne Sullivan Real Property Services E29001.01B <br /> October 18, 1999 Page 5 <br /> TABLE 4 <br /> Soil Sample Analytical Results,Poly-chlorinated Biphenyl, <br /> Fuel Oxygenates',Volatile Halogenated Organics2 <br /> Southwest Corner Lafayette & El Dorado,Stockton CA <br /> UST Removal Action, September 20 and October 8 1999 <br /> Sample Sample Depth Results in milligrams per kilogram(mg/kg) <br /> Number Location FBSG <br /> Poly-chlorinated Fuel Oxygenates' Volatile Halogenated <br /> Bi hen 1 Organics= <br /> S1 UST 515442 7 ND ND ND <br /> East End <br /> S2 UST 515442 7 ND ND ND <br /> West End <br /> S3 UST 27402 9 ND ND ND <br /> West End <br /> S4 UST 27402 9 ND ND ND <br /> East End <br /> Composite Soil Stockpiles ND ND ND <br /> NOTES: <br /> FBSG = feet below site grade(approximate) <br /> 1 = includes:T-butanol(TBA),Di-isopropyl Ether(DIPE),Tertiary-amyl Ether(TAME),MBTE,and Ethyl <br /> Tertiary-Butyl Ether(ETBE) <br /> 2 =only those constituents detected are included in table,complete listing of constituents tested is contained in <br /> attached laboratory report. <br /> ND = not detected at or less than the detection limit for reporting purposes <br /> Detection limits for reporting purposes are recorded on the attached laboratory reports. <br /> LIMITATIONS <br /> Twining was responsible only for soil sampling at the site and chemical testing of the soil <br /> samples collected in the field. Soil sample locations and scope of chemical analyses were based <br /> on the standard of practice for UST removal actions in San Joaquin County at the time of the <br /> work. <br /> No investigation is thorough enough to exclude the presence of hazardous materials at a given <br /> site. If hazardous conditions have not been identified during the assessment, such a finding <br /> should not therefore be construed as a guarantee of the absence of such materials on the site,but <br /> rather as the result of the services performed within the scope, limitations and cost of the work <br /> performed. This report completes the scope of Twining's services for this site. <br /> This work was performed to the standard of practice for environmental consultants in Central <br /> California at the time the work was performed, no other warranty, expressed or implied is made. <br />