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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 TPHg Benzene Toluene Ethylbenzene Xylenes MTBE <br /> Well ID Date (ppm) (ppb) (pb) (Ppb) (Ppb) (ppb) (Ppb) <br /> NP-2-22 09/18/03 ---- <50 <0.50 <0.50 <0.50 <0.50 <0.50 <br /> (Cont.) 10/16/03 ---- 3001x1 40 4.5 1.8 11 <2.0 <br /> 12/02/03 7.7 <50 <0.50 <0.50 <0.50 0.0 <0.50131 <br /> 02/18/04 1.53 <50 <0.50 <0.50 <0.50 0.0 14[31 <br /> 04/19/04 -- <br /> <50 <0.50 <0.50 <0.50 0.0 <0.50 <br /> 05/20/04 -- <50 0.63 <0.50 <0.50 <1.0 -- <br /> 08/16/04 <br /> -0811fi/04 -- <br /> <50 <0.50 <0.50 <0.50 <1.0 <0.50131 <br /> 09/23/04 -- <50 <0.50 <0.50 <0.50 <1.0 -- <br /> 10/22/04 -- <50 <0.50 <0.50 <0.50 <1.0 -- <br /> 11/18104 -- <50 <0.50 <0.50 <0.50 <1.0 1.0 <br /> 12/29/04 -- <50 <0.50 <0-50 <0.50 <1.0 -- <br /> NP-2-60 11120-22/0011 ---- 13,30012] 4,350 191 498 527 <500/<66.7131 <br /> 12107/00111 ---- 20,400121 5,580 257 587 678 ---- <br /> Baseline 12/8/00 1.94 12,000 4,300 190 490 600 1200 <br /> 12/19/00 5.06 9,400 3,500 210 300 420 <100 <br /> 12/26/00 3.67 12,700 3,210 187 334 521 <250 <br /> 01/02/01 ---- 11,900 3,290 259 419 608 <250 <br /> 01/09/01 3.29 9,340 3,160 140 178 234 <250 <br /> 01/16/01 5.28 6,670 2,850 125 134 242 <500 <br /> 01123/01 3.78 7,050 2,770 167 155 328 <500 <br /> 01/30/01 3.26 9,080 2,370 143 184 299 425 <br /> 02/06/01 2.30 8,970 2,090 132 173 279 <250 <br /> 02/13/01 4.37 10,500 3,430 182 232 386 506 <br /> 02/21/01 3.17 8,370 3,370 <50.0 203 328 <250 <br /> 2126-27/01[11 ---- 9,780 4,120 286 244 393 <50.0/<2.0131 <br /> 03/06/01 3.76 7,210 3,620 263 238 357 <250 <br /> 03/13/01 3.36 6,830 3,040 217 170 277 4050 _ <br /> 03/27/01 5.17 7,810 3,280 241 207 348 659 <br /> 04/10/01 2.81 7,570 3,150 <50.0 174 312 592 <br /> 06940-325 9 E:NSR Corporation <br />