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Table 9 <br /> C-Sparge System Pilot Test <br /> Groundwater Chemical Analytical Data <br /> Former Unocal Service Station#0187 <br /> 437 East Miner Avenue, Stockton <br /> Sample DO TPH9 Benzene Toluene Ethylbenzene Xylenes MtBE <br /> Well ID Data (ppm) OR b) WN (ppb) (pb) (ppb) (ppb) <br /> 05/21/02 - 18,000161 5.900 270 420 290 <500 <br /> NP-2-60 06/19/02 ---- 11,000161 5,000 200 340 190 310 <br /> 02104-06/03111 ---- 2,600 1,100 35 X10 44 <2.0 <br /> 03/21/03 -- 59 0.59 <0.50 <0.50 <0.50 <401<2.0131 <br /> 04/22/03 --- 150161 3.1 <0.50 <0.50 <0.50 10 <br /> 05/20/03 - 130 1.3 <0.50 <0.50 <0.50 3.9 <br /> 5127-30/031'1 ---- 860 290 15 2.8 31 341<5.0131 <br /> 06/20/03 - 120 <0.50 <0.50 <0.50 <0.50 4.0 <br /> 07/22/03 -- 460 140 8.8 1.2 23 <2.0 <br /> 08/22/03 - 670 6.3 4.6 8.1 5.4 <2.0 <br /> 8126-29/03111 -- 330 65 9.0 1.9 27 5.81<0.501" <br /> 09/18/03 - 5501st 64 5.9 1.8 19 <0.50 <br /> 10/16/03 - 79161 1.7 <0.50 0.71 0.52 <2.0 <br /> 12102/03 11.6 57 7.7 0.91 0.72 1.2 <0.5d31 <br /> 02/18/04 584 310 110.0 7.9 5.8 8.3 <0.50131 <br /> 04/19/04 810 47 25 15 28 <0.504 <br /> 05/20/04 <50 6.5 0.71 <0.50 1.2 - <br /> 08116l04 1200 210 34 8.1 28 <10131 <br /> 06940-49 s ENSOoration <br /> w � r� � � � I� 11� � � r I� � �■■ I� � Of1� �■ 11� <br />