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TABLE A (continued) Constituent B £ E X MTBE TPH-G EPA Method (602/8020/ (602/8020/ (602/8020/ (602/8020/ {sozo/8z6o) (5030/LUFT/ 80218) gmu) 8021B) 80216} 8015m) Detection Limits 0 3 03 03 0 6 1 0 005 µg/L µg/L pg/L µg/L µg/L mg/L MW-7 9/22/94 ND 54 21 94 NA 12 2/14195 24 26 65 €3 NA 057 514/95 15 76 ND 49 NA 025 8![0195 it 49 064 27 NA 043 413/97 06 22 ND ND [4 8] 0 l9 7121/97 04 [6 ND ND [3 61 0 13 10/23/97 05 22 ND ND NDv 018 1/22/98 08 3 ND ND NDv 021 4124/98 059 2 4 ND ND NDv 0 17 7/23/98 11 12 ND ND NDv 01 10/21/98 04 19 ND ND NDv 01 1120199 04 18 ND ND NDv 01 4/23199 03 14 ND ND NDv 008 7/28/99 ND 12 ND ND NDv ND [0/15199 ND 08 ND ND NDv 006 €/19/00 ND 08 ND ND NDv 006 4/19100 ND ND ND ND NDv 011 7/13/00 ND 0 8 ND ND NDv ND 10/13/00 ND ND ND ND NDv ND 1/2101 12 ND ND ND NDv 00976 4113101 ND ND IND ND NDv ND 7/18101 <03 <0 3 <0 3 <0 6 <l 0 v <0 05 10/9101 09 <05 <05 <10 <05v 0091 1/8/02 <05 <05 <05 <10 14v <005 4/9/02 <0 5 <0 5 <0 5 <10 l 5 v 006 715/02 <05 <0 5 <0 5 <1 0 2 0 v 0 056 10/17/02 <0 5 <0 5 <05 <[0 3 3 v 0 055 1/13/03 <05 <0 5 <0 5 <10 <5 On 006 414103 <0 5 <0 5 <0 5 <1 0 <5 04 <0 05 7110/03 <05 <0 5 <05 <1 0 <5 04 <0 05 1116/03 <0 5 <0 5 <05 <10 <5 04 <0 05 B T E,X=benzene toluene ethyl benzene and total xylenes ND—none detected at or above laboratory detection lint TPH-G=total petroleum hydrocarbons quantified as gasoline ND(X)=none detected to a level of MTBE=methyl ternary butyl ether *=detection]mut raised due to interference from non target analytes NA=not tested for this analyte [x]=EPA Method 602 analysts indicates a concentration of x result is not confirmed by EPA Method 8260B however subsequent analyses by EPA Method 8260 indicates MTBE is present. v—other oxygenates/addrnves were analyzed by EPA Method 8260 and were not detected at or above the laboratory reported detection limits —=Sample chromatogram does not resemble typical gasoline standard chromatogram The sample was further analyzed and cis 12-Dichloroethene Trichloroethene and Tetrachloroethene were detected at concentrations of 16 5 21 2 and 66 l ug/L &=other oxygenates/additives were analyzed by EPA Method 8260 and were not detected at or above the laboratory reported detection limits with the exception of Di isopropyl ether which was detected above the laboratory reported detection hmit "=EPA Method 602 indicated that MTBE was present at 240µg/L However EPA Method 8260 indicated to the previous monitoring event that MTBE was not present in the monitor well at or above the laboratory reported detection Itnut 9=Analyzed by EPA Method 8020