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r Ilr r r r r r rr r r r r lllr r r r r r r <br /> 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 TPHg Benzene Toluene Ethylbenzene Xylenes MTBE <br /> Well ID Date (PPM) (Pb) (ppb) (ppb) (ppb) (ppb) (Ppb) <br /> NP-1-111 02/18/04 0.65 <50 <0.50 <0.50 <0.50 <1.00 <0.50131 <br /> (Cont.) 04/19/04 -- -- -- -- <br /> 05/20/04 -- <50 0.57 <0.50 <0.50 <br /> 08/16/04 -- <br /> <50 <0.50 <0.72 <0.50 <1.0 <0.50"J <br /> 09/23/04 -- <50 0.68 <0.50 <0.50 <1.0 -- <br /> 10/22/04 -- <50 1.1 <0.50 <0.50 <1.0 -- <br /> 11117/04 -- <50 <0.50 <0.50 <0.50 <1.0 <0.50 <br /> 12/29/04 -- <50 0.75 <0.50 <0.50 <1.0 -- <br /> NP-2-22 11/20-22/00111 ---- 431121 4.20 4.06 2.25 2.85 <5.00/<2.00131 <br /> 12/07/00111 --- 630121 5.48 3.29 3.02 1.57 ---- <br /> Baseline 1218/00 1.70 520 1.4 0.64 2.7 3.2 5.2 <br /> 12/19/00 6.45 490 58 9.2 24 34 26 <br /> 12/26/00 3.47 559 15.6 4.18 10.3 16.8 <2.50 <br /> 01/02/01 ---- 668 23.4 6.92 33.1 54.6 <2.50 <br /> 01/09/01 2.15 302 2.93 1.16 6.08 7.24 <2.50 <br /> 01/16/01 2.23 361 0.612 1.83 5.77 6.97 <5.00 <br /> 01/23/01 2.71 299 1.65 <0.500 3.11 7.52 <2.50 <br /> 01/30/01 2.09 245 1.53 <0.500 2.53 6.58 425 <br /> 02/06/01 2.30 414 1.31 <0.500 0.516 1.27 <2.50 <br /> 02/13/01 3.81 377 2.26 <0.500 1.38 0.850 <2.50 <br /> 02121/01 2.02 337 3.21 <0.500 1.42 1.96 <2.50 <br /> 2/26-27/0111 --- 204 1.52 0.733 0.634 1.06 <2.50/<2.013J <br /> 03/06/01 2.12 329 13.4 2.69 3.05 8.23 <2.50 <br /> 03/13/01 1.97 347 14.5 3.56 2.82 4.10 13.4 <br /> 03/27/01 1.89 346 22.3 <0.500 6.02 9.69 16.6 <br /> 04/10/01 2.31 409 29.3 <2.50 5.41 6.97 27.4 <br /> 04/24/01 2.72 439 32.7 4.79 5.76 4.14 <12.5 <br /> 05/08/01 2.68 190 27.2 3.56 4.92 3.95 4.38 <br /> 05/14-16/011'1 -- 373121 19.5 3.00 4.21 1.87 <5.001<2.00131 <br /> 06940-325 7 ENSR Corporation <br /> a <br />