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TABLE A (continued) . Constituent B T E X MTBE TPM G (602/8020/ (602/90201 (602/8020/ {60218020! (802018260) (5030/LUFT/ EPA Method 802113) 802113) 802 15) 8021B) 8015m) Detection LlmltS 0 3 0 3 03 06 10 005 µg/L Fid µg11 Ng[l µPQ- mg/L MW-7 9/22/1994 ND 54 21 94 NA 12 2114/1995 24 26 65 13 NA 057 5/411995 Is 76 ND 49 NA 025 8/10/1995 11 4 9 064 27 NA 043 4/311997 1 06 2 2 ND ND (4 8] 0 19 7121![997 04 16 ND ND (3 6] 013 16/23/1997 05 22 ND ND NDv 0 18 1/22/1998 08 3 ND ND NDv 021 4/24/1998 059 24 ND ND NDv 017 7/23/1998 11 12 ND ND NDv 0 l 10/21/1998 04 19 ND ND NDv 01 1/2011999 04 is ND ND NDv OI 4/23/1999 03 14 ND ND NDv 008 7/28/1999 ND 12 ND ND NDv ND 10/15/1999 ND 0 9 ND ND NDv 006 1/19/2000 ND 08 ND ND NDv 006 4/19/2000 ND ND ND ND NDv Oil 7113/2000 ND 08 ND ND NDv ND 10/1312000 ND ND ND ND NDv ND 1/2/2001 12 ND ND ND NDv 00976 4113/2001 ND ND ND ND NDv ND 7/19/2001 <03 <03 <03 <06 <10V <005 1019/2001 09 -05 <05 <1 0 <05V 0 091 1/8/2002 <0 5 <0 5 <0 5 <1 0 14v <005 4/9/2002 <0 5 <0 5 <D5 i <10 15V 006 715!2002 <0 5 <0 5 <0 5 10/17/2002 <05 <05 <05 <10 33v 0055 1/13/2003 <0 5 <0 5 <0 5 4/4/2003 <0 5 <0 5 <0 5 <10 <5 09 <0 05 7/1012003 <0 5 <0 5 <0 5 <10 <5 0# <0 05 11!612003 <0 5 <0 5 <0 5 <10 <5 0# <0 05 1/28/2004 <0 5 105 10 5 <10 <5 0# <0 05 B T E X=benzene toluene ethyl benzene and total xylenes ND=none detected at or above laboratory detection limit TPH G=total petroleum hydrocarbons quantified as gasoline ND(X)=none detected to a level of X MTBE=methyl tertiary butyl ether *=detection limit raised due to interference from non target analytes NA=not tested for this analyte [x]=EPA Method 602 analysis 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/additives 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 1 2-Dichloroethene Trichloroethene and Tetrachloroethene were detected at concentrations of 16 5 21 2 and 66 1 ug/L &—other oxy6cnatesladditives 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 limit **=EPA Method 602 indicated that MTBE was present at 240µg/L However EPA Method 8260 indicated in the previous monitoring event that MTBE was not present in the monitor well at or above the laboratory reported detection limit 4=Analyzed by EPA Method 8020