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Table 9 <br /> k C-Sparge System Pilot Test <br /> Groundwater Chemical Analytical Data <br /> 4 Former Unocal Service Station#0187 <br /> 437 East Miner Avenue, Stockton <br /> Sample DO TPHg Benzene Toluene Ethylbenzene Xylenes MTBE <br /> Weil ID Date (ppm) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> NP-2-60 05/20/03 ---- 130 1.3 <0.50 <0.50 <0.50 3.9 <br /> (cant.) 5127-301031'1 ---- 860 290 15 2.8 31 341<5.0,31 <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 /> 08/22103 ---- 670 6.3 4.6 8.1 5.4 <2.0 <br /> 8126-291031'1 ---- 330 65 9.0 1.9 27 5.81<0.50131 <br /> 09118/03 ---- 550161 64 5.9 1.8 19 <0.50 <br /> 10/16/03 ---- 79161 1.7 <0.50 0.71 0.52 <2.0 <br /> 12/02/03 11.6 57 7.7 0.91 0.72 1.2 <0.50131 <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.W <br /> 05/20/04 -- <50 6.5 0.71 <0.50 1.2 -- <br /> 08/16/04 -- 1200 210 34 9.1 28 <1.0131 <br /> 09/23/04 -- 370 43 2.40 0.97 14 -- <br /> 10/22/04 -- 270 24 7.4 1.2 14 -- <br /> 11118/04 -- 1,100 170 29 8.7 32 <0.50 <br /> 12/29/04 -- 310 19 5.3 3.1 26 -- <br /> 01128/05 -- 670 14 11.0 94 8.8 -- <br /> 02114/05 -- 380 29 8.2 3.8 17 <1.0 <br /> NP-2-116 11120-22100 ---- 211 EI 24.5 3.13 1.19 2.24 <5.001<2.001" <br /> 12/07/00 ---- 126121 16.6 0.601 0.594 <0.500 -- <br /> Baseline 12/08/00 2.11 170 22 0.66 0.63 <0.50 14 <br /> 12/19/00 3.52 100 18 <1.0 <1.0 <1.0 5.8 <br /> I 12/26/00 4.25 118 15.2 <0.500 <0.500 <0.500 <2.50 <br /> 01/02/01 --- 189 20.8 0.543 <0.500 <0.500 <2.50 <br /> 01/09/01 2.19 114 19.9 <0.500 <0.500 <0.500 <2.50 <br /> 01/16/09 3.17 103 24.6 <0.500 <0.500 <0.500 <5.00 <br /> 01/23/01 2.83 90.8 19.8 <0.500 <0.500 0.544 <2.50 <br /> 06940-325 11 ENSR Corporation <br />