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TABLE A Historic Groundwater Analytical Data Canepa's Park Street(September 1994-April 2005) Other Constituent B T E X MTBE Oxygenates/ TPH-G Additives EPA Method (60218020! (602/80201 (602180201 (60218020! (80201 82606) (92608) (5030/LUPT1 80216182608) 8021B/8260B) 80216/82608) 8021B/8260B) 8015m) Detection Limits 03 03 03 06 10 05 005 NPS- P91L I pgfL I pOIL µtin- Pg/L mPf- MW 7 9/2211994 ND 54 2 1 94 NA NA 1 20 2/1411995 24 26 65 13 NA NA 057 5/411995 15 76 ND 49 NA NA 0 25 8/1011995 1 1 49 0 64 27 NA NA 043 4/311997 06 22 ND ND [4 81 NA 0 19 7/21!1997 04 16 ND ND [3 61 NA 0 13 10/23/1997 05 22 ND ND NDv NA 0 is 1/2211998 09 3 ND ND ND r NA 021 4/241199a 059 24 ND ND NDv NA 017 7/23/1998 11 12 ND ND ND• NA 010 10/2111998 04 19 ND ND ND• NA oto 1/2011999 04 is ND ND ND♦ NA 0 IO 4/23/1999 03 14 ND ND NDr NA 009 7/29/1999 ND 12 NP ND NDv NA ND 10115/1999 ND 09 ND ND ND• NA 006 1/1912000 ND 09 ND ND ND• NA 006 411 912 0 0 0 ND ND ND ND NDv NA Olt 7/13/2000 ND 09 ND ND NDv NA ND 10/13/2000 ND ND ND ND ND• NA ND 1!2!200! 12 ND ND ND NDv NA o t0 4!13/2001 ND ND ND ND NI)v NA ND 7118/2001 <03 <03 <03 <06 <1 o• NA <005 101912001 09 <05 <05 <10 <05• NA 009 1/8/2002 <0 5 <0 5 <0 5 <1 0 14v NA <005 4/9/2002 <0 5 <0 5 <0 5 <1 0 15V NA 006 7!5!2002 <0 5 <0 5 <0 5 <1 0 20w- NA 006 10/1712002 <0 5 <0 5 <0 5 <1 0 3 3• NA 006 1113/2003 <0 5 <0 5 <0 5 <1 0 <5 0# NA 006 414/2003 <0 5 <0 5 <0 5 <1 0 <5 00 NA <0 05 7/1012003 <0 5 <o 5 <0 5 <1 0 <5 0# NA <0 05 11/6/2003 <O 5 <0 5 <0 5 <1 0 <5 ON NA <0 05 1128/2004 -05 <0 5 <0 5 <1 0 <5 ON NA <0 05 5/10/2004 <0 5 a0 S 10 5 <1 0 <5 ek NA <0 05 7/14/2004 <0 5 <0 5 <G5 <l 0 <5 011 NA <0 05 10/12/2004 <0 5 <0 5 <0 5 <l 0 1 0 NA <0 05 1/14/2005 <0 5 <0 5 <0 5 <1 0 20 <0 5<5 0 <0 05 411212005 <0 5 <0 5 <0 5 <1 0 is <0 5-<5 0 <O 05 B T EX=benzene,toluene ethyl benzene and total xytenes ND-none detected at or above laboratory detection limit TPH G m total petroleum hydrocarbons quantified as gasoline ND(X)a none detected to a level of X MTBE R methyl tertiary butyl ether •-detection limit ratted due to interference from non-target µp/L-micrograms per liter=parts per bill tan(ppb) analytes mgIL-milligrams per liter=parts per million(ppm) NA a not tested for this analyte [x]-EPA Method 602 analysts indicated a concentration of x result was not confirmed by EPA Method 82606 however subsequent analyses by EPA Method 8260 indicates MTBE was present •-other oxygenates/addiltvea 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 as 1 2 Dtchloroethene Tnchloroethene and Tetrachloroethane were detected at concentrations of 16 5 21 2 and 66 1 A" &-other oxygenates/addnsves were analyzed by EPA Method 3260 and were not detected at or above the laboratory reported detection limps with the exception of Ds isopropyl ether which was detected above the laboratory reported detection limit F•=EPA Method 602 indicated that MTBE was present at 240µg/1. However EPA Method 8260 indicated to the previous monitoring event that MTBE was not present in the monitoring well at or above the laboratory reported detection Irma 9-Analyzed by EPA Method 8020 •-Analyzed by EPA Method 8260E [dl=Sample diluted due to high concentration of target analytes andlor high organic content P 12000_prj12038 Canepa Park12038B Canepa Park\DatalAll MW Analytical 4-12-05 xis