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• Table 3 Historical Groundwater Analyticoata,T&T Truclung,Lodi, California , <br /> All concentrations in /L <br /> Sample Depth, EPA Method 8260B <br /> tdenuficaton Date feet Benzene Toluene Eth lbenzene Xylenes TPH-G MTBE Other Anal es <br /> 10/31/2000 320 <050 <0 50 44 1,400 33 <br /> 1/19/2001 390 <10 <10 18 1,900 <10 <br /> 5/18/2001 190 <050 <0 50 16 650 230 <br /> 8/20/2001 720 1 <0 50 <050 <0 50 240 9 <br /> 10/31/2001 900 <0 50 <0 50 13 360 17 <br /> 3/22/2002 410 <0 50 <0 50 <0 50 320 36 <br /> 6/25/2002 270 <0 50 <050 <050 230 28 <br /> 8/27/2002 220 <0 50 <0 50 <050 200 13 <br /> MW-4 /,4/1998a' 60-80 93 <10 <10 <10 1500 <50 <br /> 4/27/1999 24 22 <05 17 1,600 100 Isopropyl benzene 7 4 <br /> 4/27/1999 -- -- -- -- -- -- n-Propylbenzene 097 <br /> 4/27/1999 -- -- -- -- sec-butylbenzene 20 <br /> 4/27/1999 n-butylbenzene 15 <br /> 1/26/2000 37 <0 5 <05 <0 5 280 47 <br /> 4/20/2000 07 <0 5 <05 <05 430 120 <br /> 7/21/2000 21 <0 5 <0 5 <0 5 140 180 <br /> 10/31/2000 12 <10 <10 <10 110 490 <br /> 1/19/2001 26 <20 <2 0 <2 0 <200 1,200 <br /> 5/18/2001 <20 <20 <20 <20 <200 960 <br /> 8/20/2001 <0 50 <0 50 <0 50 <0 50 68 310 <br /> 10/31/2001 <2 0 <20 <20 <20 <200 560 <br /> 3/22/2002 <0 50 <0 50 <0 50 <0 50 190 340 <br /> 6/25/2002 <10 <10 <10 <10 <100 410 <br /> 8/27/2002 <10 <10 <10 <10 <100 200 <br /> TPH-G=total petroleum hydrocarbons as gasoline <br /> MTBE=methyl-t-butyl ether <br /> Notes (a) BTEX and TPH-G analyzed using EPA Method 8020/602 MTBE analyzed using EPA Method 8020/602 and 8260E <br /> (b)The MTBE result shown is from EPA Method 8020/602 and not the result from EPA Method 8260B <br /> The EPA Method 8260B result for MTBE(46 gg/L)was qualified by the lab as"elevated"as a result of possible interference <br /> P\Prolects\21000\21417\Reports\t3 xis <br />