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First Quarter,2002 Quarterly Groundwater Monitoring Report <br /> Eckert Cold Storage,Manteca,California <br /> Page 4 <br /> Table 2—Groundwater Laboratory Analytical Results (February 27,2002) <br /> • GASOLINE OXYGENATES/ADDITIVES <br /> B T E X TPH-G TPH-D <br /> MTBE Other Gasoline Oxygenates/Additives <br /> Detection Limits: 0.5 0.5 0.5 1.0 0.05 1 0.05 0.5 0.5— 13 <br /> µg/l gg/l ggll gg/l mg/l mg/l gg/I µg11 <br /> Analytical Method: 8260B 8260B 8260B 8260B 9015M 8015M 8260B 8260B <br /> Sample I.D. <br /> 3471A-MW 1-2/27102 4404 15+ 95+ 271+ 8.2 1.1* 23 Tertiary butanol 190; 1,2-DCA 14♦ <br /> 3471A-MW3-2/27/02 ND ND ND ND 2.9 0.97* 2.9 1,2-DCA 2.5 <br /> 3471A-MW4-2/27/02 ND ND ND ND 0.67 ND 15 1,2-DCA 15 <br /> 3471A-MW5-2127102 ND ND ND ND ND ND 7.3 1,2-DCA 8.0 <br /> 347]A-MW6-2127102 ND ND ND ND ND ND ND ND <br /> 3471A-MW7-2/27/02 ND ND ND ND ND ND ND ND <br /> 3471A-MW8-2/27/02 140* 0.8 160* 70 0.55 ND ND ND <br /> 3471A-DW-2/27/02 ND ND ND ND ND ND I ND ND <br /> Units: Analytical: <br /> mg/L=milligrams per liter=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 /> Gasoline oxygenates/additives= methyl tertiary butyl ether(MTBE),ethanol, <br /> tertiary butanol,di-isopropyl ether(DIPE),ethyl tertiary butyl ether(ETBE), <br /> tertiary amyl methyl ether(TAME),1,2-dichloroethane(1,2-DCA) <br /> ND=not detected at or above the laboratory reported detection limits <br /> • <br /> =estimated concentration(see laboratory report,Attachment D) <br /> + =revised result from reanalysis(see laboratory report,Attachment D) <br /> ♦ = all other oxygenates/additives were not detected at or above raised <br /> laboratory reporting limits <br /> FUTURE WORK <br /> Continued quarterly monitoring. Condor is in the process of preparing a work plan for additional soil and <br /> groundwater investigation activities at the site. <br /> LIMITATIONS AND SIGNATURES <br /> This report was prepared under the direct supervision of a Registered Geologist in the State of California. <br /> The standard of care for all services performed or furnished by Condor is the care and skill ordinarily <br /> used by a member of the environmental profession practicing under similar conditions at the same time in <br /> the same locality. Condor is not responsible for the accuracy and completeness of information collected <br /> and developed by others. <br /> `� CONDOR <br />