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Table 2 <br /> Volatile Organic Compounds by EPA Method 8260 <br /> Former ARCO Service Station#4493 <br /> j 205 North Center Street <br /> Stockton,California <br /> cis-1,2- Tms-1,2 Tetrachloro- Tdchloro- 1,2,4 1,3,5- <br /> n-BW- <br /> ,3,5-n-B - sec-Butyl- dichloro- dichtoro- Chloro- Isopropyl- Na hth- n-Propyl- <br /> 1,1,2,2-Tetra- ethene 1,1,2-Tdchlo- ethene Tdmethyl- trimethyl- <br /> Well <br /> Date benzene benzene ethene ethene form benzene alene benzene chloroethane (PCE) roethane (TCE) benzene benzene <br /> Number Sampled (Ppb) (ppb) (ppb) (ppb) (Ppb) (Ppb) (ppb)_- (_ppb) (Ppb) (ppb) (ppb)_ (ppb) (ppb) (ppb)_ <br /> MW-1 2/16/1999 NO ND 39.4 ND 11.1 NO NO NO NO NO ND 433 NO NO <br /> 3/10/1999 -- -- -- - - -- -- - -- - - -- -- - <br /> 06/17/99 <10 <10 202 2.62 <2 <10 <25 <10 7.04 2.34 2.36 126 4.40 <2.0 <br /> 09/24/99 - -- -- -- - -- -- -- -- -- - -- -- - <br /> MW-2 2/16/1999 NO NO 10.6 NO NO ND NO NO NO 2.50 NO 106 NO NO <br /> 3/10/1999 - -- - -- -- - -- -- - -- -- -- -- - <br /> 06/17/99 <10 <10 3.54 <2.0 <2 <10 <25 <10 <2.0 <2.0 <2.0 59.2 <2.0 <2.0 <br /> 09124199 <2.0 <2.0 3.84 <2.0 <2.0 <2.0 <5.0 <2.0 <2.0 <2.0 <2.0 54.4 <2.0 <2.0 <br /> MW-3 2/1611999 NO NO NO ND NO NO NO NO NO NO NO 2.09 NO NO <br /> 3/1011999 -- - - -- - -- -- - -- - -- -- -- - <br /> 06/17/99 <10 <10 <2.0 <2.0 <2 <10 <25 <10 <2.0 <2.0 <2.0 <2.0 2.96 <2.0 <br /> 09124/99 - -- - - -- - -- -- -- -- - - - -- <br /> MW4 2/16/1999 63.8 NO NO NO 21.3 59.2 342 216 NO NO NO NO NO ND <br /> 3/1011999 - -- -- - - - -- -- - -- - - - -- <br /> 6/17/1999 40.4 14.3 67.6 <2.0 <2 47.2 372 179 <2.0 <2.0 <2.0 <2.0 1,210 299 <br /> 09/24/99 21.4 9.12 53.6 0.0 0.0 31.8 142 109 <4.0 0.0 <4.0 8.44 720 61.6 <br /> ppb =Parts per billion <br /> < =below detection limit <br /> =All other VOC's not listed above were not detected at or above the detection limits. <br /> NO =Sample reported as nondetect. <br /> 077.41819.002/G W TA B L E S <br />