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TABLE A Historic Groundwater Analyttenl Data Canepa's Park Street(September 1994-January 2006) Other Constituent B T E X MTBE Oxygenates/ TPH-G AddltLVCS EPA Method (602/8020/ (602180201 (602/80201 (602/8020/ (8020/8260B) (82606) (5030/LOFT/ 8021B/8260B) 8021B/8260B) 8021B/8260B) 8021B/8260B) 8015M) Detection Limits 03 03 03 06 1 0 05 005 µg/L µg/L µg/L µg/L µg/L µg/L mg/L MW 7 9/22/1994 ND 54 2 1 94 NA NA 1 20 2/14/1995 24 26 6 5 13 NA NA 0 57 5/4/1995 15 7 6 ND 49 NA NA 025 8/10/1995 1 1 49 064 27 NA NA 043 4/3/1997 06 22 ND ND [4 81 NA 0 19 7/21/1997 1 04 16 ND ND [3 61 NA 0 13 10/23/1997 05 2 2 ND ND NDv NA 0 18 1/22/1998 08 3 ND ND NDv NA 021 4/24/1998 059 2 4 ND ND NDv NA 0 17 7/23/1998 1 l 12 ND ND NDv NA 010 10/21/1998 04 19 ND ND NDv NA 010 1/20/1999 04 l8 ND ND NDv NA 010 4/23/1999 03 14 ND ND NDv NA 008 7!28/1999 ND 12 ND ND NDv NA ND 10/15/1999 ND 08 ND ND NDv NA 006 1/19/2000 ND 08 ND ND NDv NA 006 4/19/2000 ND ND ND ND NDv NA 011 7/13/2000 ND 08 ND ND NDv NA ND 10/13/2000 ND ND ND ND NDv NA ND 1/2/2001 12 ND ND ND NDv NA 010 4/13/2001 ND ND ND ND NDv NA ND 7/18/2001 <0 3 <0 3 <0 3 1 <0 6 <1 Ow NA <0 05 10/9/2001 09 <0 5 <0 L. <1 0 <0 5T NA 009 1!8/2602 <0 5 <0 5 <0 5 <1 0 1 4w NA <005 4/9/2002 <0 5 <0 5 <0 5 <1 0 1 5 v NA 006 7/5/2002 <0 5 <0 5 <0 5 <1 0 2 0 v NA 006 10/17/2002 <0 5 <0 5 <0 5 <1 0 1 3 3 v NA 006 1/13/2003 <O 5 <0 5 <0 5 <1 0 <5 0# NA 006 4!4/2003 <0 5 <0 5 <0 5 <1 0 <5 09 NA <0 05 7/10/2003 <0 5 <0 5 <0 5 <10 <5 0# NA <0 05 11/6/2003 <0 5 <0 5 <0 5 <1 0 <5 0# NA <0 05 U29/2004 <0 5 <0 5 <0 5 <10 <5 0# NA <0 05 5/10/2004 <D 5 <0 5 <0 5 <l 0 <5 0# NA <0 05 7/14/2004 <0 5 <0 5 <0 5 <10 <5 00 NA <0 05 10/12/2004 <0 5 <0 5 <0 5 <1 0 is NA <0 05 1114!2005 <D 5 <4 5 <0 5 <0 5<5 0 <0 05 4/12/2005 <0 5 1 <0 5 1 <0 5 1 <l 0 15S <0 5<5 0 <0 05 711512005 <0 5 <0 5 <0 5 <l 0 1 1$ <0 5<5 0 <0 05 10/7/2005 <0 5 <0 5 <0 5 <l 0 09S <0 5<5 0 <0 05 1/17/2006 <0 5 <0 5 <0 5 <l 0 Lis <6 5-<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 lima raised due to interference from non target µg/L-micrograms per liter=parts per billion(ppb) analytes mg/L—milligrams per liter=parts per million(ppm) NA—not tested for this analyte [x[=EPA Method 602 analysis indicated a concentration of x result was not confirmed by EPA Method a260B however subsequent analyses by EPA Method 8260 indicates MTBE was present v g other oxygenatesladditives 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 Thu sample was further analyzed and cis 1 2 Diehloruethene Tnchlaroethene and Tetrachloroelhene were detected at concentrations of 16 5 21 2 and 66 lµg/L &-other oxygenates/additives were analyzed by EPA Method 6260 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 delectson limit •*=EPA Method 602 indicated that MTBE was present at 240 pg/L However EPA Method 8260 indicated in the previous monitoring event that MTBE was not present in the monitoring well at or above the laboratory reported detection limit #—Anal zed b EPA Method 8020 $=Analyzed b EPA Method 8260B P 12000—PrIMA Canepa Park12038C Canepa ParklReports\Reports12038C Canepars Jan 2066 1st gmr1P 12000_prJ12038 Canepa Park12038C Canepa ParklReportslReports12038C Canepa's Jan 2006 1st gmr1All MW Analytical 1-17-06 xls