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' Quarterly MonuermL Report,April 1998 <br /> Canepa s Cu Wash <br /> • 248E Part.St Stockton,C <br /> Mayay 26 26 19988 <br /> Page 3 <br />' 4.2 Results of Analyses <br /> Laboratory analysis of the groundwater sample collected from MW-4 Indicated that BTEX and TPH-G were <br /> Dot detected at or above the laboratory reported detection limits Laboratory analytical results Indicated that <br />' TPH-G was detected in the groundwater samples collected from MW-1 at 0 063 mg/L, MW-2 at 16 mg/L, <br /> MW-3 at 0 80 mg/L, MW-5 at 10 0 mg/L, MW-6 at 0 057 mg/L, and MW-7 at 0 17 mg/L BTEX constituents <br /> were detected in the groundwater samples collected from all of the monitor wells sampled, except MW-4, <br />' ranging from 0 46 µg/L (MW-6) to 2,400 µg/L (MW-5) One or more gasoline oxygenates/additives were not <br /> detected at or above the laboratory reported detection limits in any of the groundwater sample collected from <br /> the monitor wells with the exception of MTBE, at 12 pg/L, in the sample from MW-6 The laboratory results <br />' are presented in Table 1, below, and Figure 2, Appendix A <br /> TABLE 1 <br />' Groundwater Analytical Results (April 1998) <br /> MW-1 through MW-7 <br /> B 1 L X MTBE Other TPH-G <br /> Oxygenates/ <br /> Additives <br /> MONITOR Detection 0 3 03 03 06 1 0 See 005 <br /> W ELL/ DA I E Limits—a pg/1 µg/1 µg/1 µg/1 µg/1 Laboratory mg/1 <br /> SAMPLE Sample 1 D Report Sheet <br /> I• MW-1 4/24/98 2038-MW1-4/24/98 ND 095 ND ND ND ND 0 063 <br /> MW-2 4/24/98 2038-MW2-4/24/98 740 180 460 680 ND ND 16 <br /> MW-3 4/24/98 2038-MW3-4/24198 53 3 8 100 14 ND ND 080 <br /> MW-4 4/24/98 2038-MW4-4/24/98 ND ND ND ND ND ND ND <br /> MW-5 4124/98 2038-MW5-4/24/98 2 400 270 380 330 ND ND 10 <br /> MW-6 4/24/98 2038-MW6-4/24/98 ND 42 046 2 1 12 ND 0 057 <br /> MW-7 4/24/98 2038-MW7-4/24/98 059 1 24 ND ND ND ND 017 <br /> Unit Conversrons Anal <br /> µg/1 parts per billion(ppb) B,T,E,X=benzene,toluene,ethyl benzene,and xylene <br /> mg/i parts per million(ppm) rPH-G=total petroleum hydrocarbons,quantified as gasoline <br /> MI BE=Methyl tertiary Butyl Ether <br /> Other Oxygenates/Additives—ethanol,Di-isopropyl ether,Ethyl tertiary-Butyl Ether, <br /> tertiary-amyl Methyl Ether and tertiary-Butanol <br /> ND=none detected at or above reported laboratory detection limit <br /> I $ip CONDOR <br />