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TABLE A-HISTORIC GROUNDWATER MONITORING DATA <br /> DTW GWE Benzene Toluene Ethyl Total MTBE TPH G TEPH Other II <br /> i Benzene Xylenes Oxygenates f <br /> Detection Limits— 0 5 0 5 0 5 1 0 0 5 50 50-250 05-50 <br /> Units--+ ug/L UWE u ug/L ug1L ug/L ug/L ug/L <br /> Well I D Date Feet Feet � <br /> TOC Elev <br /> MW 1 11/8/2004 3723 -2088 <0 5 <0 5 <0 5 <1 0 <0 5 <50 <50-<250 <0 5-<50 r <br /> 1635 2/4/2005 3645 -20 10 <0 5 <0 5 <0 5 <1 0 <0 5 <50 <50 <250 <0 5-<50 <br /> 5/4/2005 3475 -1840 <0 5 <0 5 <0 5 <1 0 <0 5 170* 110*(D) <0 5-<50 <br /> 8/16/2005 3477 -l8 42 <0 5 <0 5 <0 5 <l 0 <0 5 <50 <50-<250 <0 5-<50 <br /> 11/18/2005 35 44 -1909 <0 5 <0 5 <0 5 <1 0 <0 5 <50 <50-<200 <0 5-<50 ; <br /> i <br /> 3!912006** 33 64 -17 291 <0 5 1 <0 5 1 <0 5 <1 0 1 <0 5 <50 <50 NS <br /> MW 2 11/8/2004 3749 -2097 <0 5 <0 5 <0 5 <1 0 <0 5 <50 <50-<250 <0 5-<50 <br /> 1652 2/4/2005 3670 -20 18 <0 5 <0 5 <0 5 <1 0 <0 5 <50 <50-<250 <0 5-<50 <br /> 5/4/2005 35 03 -1951 <0 5 <0 5 <0 5 <1 0 <0 5 <50 <50-<250 <0 5-<50 <br /> 8/16/2005 35 01 -1849 <0 5 <0 5 <0 5 <1 0 <D 5 92* 82(D) <0 5-<50 ! <br /> 11/18/2005 35 69 19 17 <0 5 <0 5 <0 5 <l 0 <0 5 <50 <50-<200 <0 5-<50 <br /> 319/2006** 3392 -1740 <0 5 <0-5 <0 5 <1 0 1 <0 5 <50 <50 NS <br /> MW-3R 11/8/2004 3685 2107 <0 5 <0 5 <0 5 <1 0 <0 5 <50 <50-<250 <0 5-<50 I <br /> 1578 2/4/2005 3607 2029 <0 5 <0 5 <0 5 <1 0 <0 5 <50 <50-<250 <0 5-<50 <br /> 5/4/2005 3435 -1857 <0 5 <0 5 <0 5 <1 0 <0 5 <50 <50-<250 <0 5-<50 I <br /> 8/16/2005 3436 -1858 <0 5 <0 5 <0 5 <1 0 <0 5 <50 <50-<250 <0 5-<50 I <br /> 11/18/2005 3505 -1927 <0 5 <0 5 <0 5 <l 0 <0 5 <50 <50-<200 <0 5-<50 <br /> 31912006** 3327 -1749 NS NS NS NS NSNS NS NS <br /> r <br /> Notes Unit Conversions <br /> Top of casing elevations(feet)are referenced to NAVD88 vertical datum ltg/L=micrograms per liter=parts per billion(ppb) <br /> DTW=depth to water(feet) <br /> GWE=groundwater elevation(feet) <br /> t <br /> NS=not sampled <br /> i <br /> *Chromotgraphic pattern does not match typical gas standard <br /> Analytical {f <br /> B T E X=benzene,toluene ethyl benzene and total xylenes <br /> MTBE=methyl tertiary-butyl ether " <br /> TPH-G=total petroleum hydrocarbons quantified as gasoline k <br /> TEPH=total extractable petroleum hydrocarbons quantified as kerosene(K) motor oil(MO),and diesel(D) <br /> **Analytes sampled include only BTEX,MTBE TPH G and TEPH-D <br /> Other Oxygenates methanol,ethanol tertiary-butanol(TBA) di-isopropyl ether(DIPE) ethyl tertiary-butyl ether(ETRE) tertiary-amyl methyl ether(TAME) j <br /> 1 2-dichloroethane(1,2-DCA) and 1 2-dibromoethane(EDB) <br /> 9 <br /> I <br /> P 13000_p013949 Raymond Investment Beverly Gare+a\3949H Raymond Investments Groundwater Momtunng\Repotts\Repotts\fbstoncal Tables As 4 <br /> i <br />