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Canepa's Car Wash <br /> 248 East Park Street,Stockton,California <br /> Second Quarter Groundwater Monitoring Report,April 2003 <br /> Page 4 of 5 <br /> . Table 2—Groundwater Laboratory Analytical Results Aril 2003 <br /> B T P X TPH-G MTBE <br /> Analytical Method-), 8020 8020 8020 8020 8015M 8020 <br /> Reporting Units-). gg/L gg/L pg/L µg/L mg/L lug/L <br /> Sample I D <br /> 2038-M W l-4/04/03 05 <0 5 06 <1 0 0 130 <5 0 <br /> 2038-MW24/04/03 45 18 46 60 95 <5 0*(8260B) <br /> 2038-MW3-4/04/03 07 <0 5 <0 5 <1 0 01 82 <br /> 2038-MW4-4/04103 <05 <0 5 <0 5 <1 0 <0 05 <5 0 <br /> 2038-MW5-4/04103 7,000 5,000 1,500 4,800 43 <5 0*(8260B) <br /> 2038-MW6-4/04103 <0 5 <0 5 <0 5 <1 0 <0 05 13 <br /> 2038-MW7-4104/03 <0 5 <0 5 <0 5 <1 0 <0 05 <5 0 <br /> Units Analytical <br /> mg/L=rrullrgrams per Mer=parts per million(ppm) B,T,E,X=benzene,toluene,ethyl benzene,total xylenes <br /> gg/L=micrograms per liter=parts per billion(ppb) TPH-G=total petroleum hydrocarbons quantified as gasoline <br /> Methyl tertiary butyi ether(MTBE) <br /> * = MTBE was analyzed by EPA Method 8020, inconsistent results were <br /> confirmed by EPA Method 8260E <br /> FUTURE WORK <br /> The next quarterly groundwater monitoring event is scheduled for July 2003 Condor submitted a Work <br /> • Plan for Additional Soil& Groundwater Investigation by Cone Penetronxeter Testing, dated November 1, <br /> 2002, to the SJCEHD for approval The work described by the work plan is intended to further evaluate <br /> the vertical and horizontal extent of groundwater contamination at the site Mr Jeff Wong of SJCEHD <br /> approved the work plan in a letter dated March 18, 2003 Condor is currently conducting planning and <br /> preparation, including off-site access negotiations, for the approved work <br /> • <br /> � 1 <br /> �/' CONDOR <br />