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-., Analytical results of air samples collected during the pilot test indicated that high <br /> concentrations of TPH could be removed through vapor extraction. <br /> A Remedial Action Plan (RAP) has been prepared for the site. Upon approval of the RAP, <br /> remediation start-up procedures should be initiated. <br /> TABLE 2 <br /> L ANALYTICAL RESULTS of WATER SAMPLES <br /> Arco Mini Mart <br /> 4511 Pacific Avenue, Stockton, CA <br /> . {µg/L} . <br /> TPH as TPH as Ethyl- <br /> Sample ID-- Gasoline Diesel Benzene Toluene benzene Xylene <br /> MW-1/1-29-93 540 NA 200 13 10 50 <br /> MW-.115-13-93 120 NA 10 0.61 ND 1.8 <br /> MW-1/8-9-93 ND NA ND ND ND ND <br /> MW-1/12-3-93 ND NA. ND ND ND, ND <br /> MW-1/3-9-94 ND NA ND ND ND. ND <br /> MW-119-27-94 ND NA ND ND STD 1.3 <br /> MW=2/1-29-93 110 NA 17 0.32 ND 1.5 <br /> MW-2/5-13-93 ND. NA 11 ND ND ND <br /> MW-2/8-9-93 130 NA 40 0.41 ND ND <br /> MW-2112-3-93 57 NA 23 ND ND ND <br /> MW-2/3-9-94 51 NA 16 ND ND ND <br /> MW-2/9-27-94 ND NA ND ND ND ND <br /> MW-2/12-28-94 ND NA.- 0.46 0.79 ND 0.58 <br /> MW-3/1-29-93 240 ND 9.4 ND ND 1.9 <br /> MW-3/5-13-93 190 ND 72 0.87 ND 5.1 <br /> MW-3/8-9-93. 62 540 15 ND ND 0.5 <br /> MW-3/12-3-93 ND ND 4.6 ND ND ND <br /> MW-3/3-9-94 ND ND 0.83 ND ND ND <br /> MW-3/9-27-94 72 ND 9.3 0.89 ND 1.4 <br /> MW-3/12-28-94 ND 95 0.36 1.3 ND 2 <br /> u = pans per billion(ppb) <br /> ND = Done Detected <br /> NA = Not Analyzed <br /> 5.2 Hydrocarbon Impacted Groundwater <br /> Low concentrations of petroleum hydrocarbons were detected in MW-2 and MW-3 during <br /> } the most recent monitoring. Remediation of impacted soil should prevent future migration. <br /> .��^� Grnbaic.l Audis Service.Eo-c. Q <br /> AF=QRI2A8 <br /> VI-lA <br />