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Table 1 - C-Sparge System Pilot Test Groundwater Chemical Analytical Data <br /> Former Unocal Service Station#0187 <br /> 437 East Miner Avenue <br /> Stockton, California <br /> Sample DO TPHg Benzene Toluene Ethylbenzene Xylenes MtBE <br /> Well ID Date (Ppm) (ppb) b) (ppb) (ppb) b) b) <br /> NP-1-65 11/20-22/001 ---- 38,400 J2] 1,660 6,510 1,200 5,710 <1,000/<66.7j31 <br /> 12/07/00f1 ---- 34,2001�1 1,710 5,900 980 4,730 ---- <br /> 12/8/00 2.41 33,000 2,000 7,000 1,000 5,200 1300 <br /> 12/19/00 5.10 24,000 1,800 5,800 500 3,200 <1000 <br /> 12/26/00 4.55 33,600 2,500 6,250 738 3,630 <250 <br /> 01/02/01 ---- 61,400 3,650 12,400 1,500 7,700 <1000 <br /> 01/09/01 6.19 773 51 166 9.43 99.7 <25.0 <br /> 01/16/01 4.42 1,450 61.5 292 41.8 262 <50.0 <br /> 01/23/01 4.64 2,350 76.5 322 53.6 371 <25.0 <br /> 01/30/01 4.33 756 16.0 100 17.2 126 <25.0 <br /> 02/06/01 4.31 1,550 3,850 214 31.1 247 <25.0 <br /> 02/13/01 3.71 1,250 42.6 223 26.1 166 <25.0 <br /> 02/21/01 4.19 1,390 53.4 264 26.4 175 <25.0 <br /> 2/26-27/01 f 1 ---- <50.0 <0.500 0,609 <0.500 0.544 <2.50/<2.0131 <br /> 03/07/01 5.55 <50.0 <0.500 <0.500 <0.500 <0.500 <2.50 <br /> Baseline 03/13/01 5.49 60.6 0.912 4.73 1.14 9.28 <2.5 <br /> 03/27/01 4.89 169 4.47 23.0 3.87 37.0 4.84 <br /> 04/10/01 4.74 396 9.53 59.7 9.47 93.1 <12.5 <br /> 04/24/01 5.66 109 4.19 17.9 1.42 22.4 <5.00 <br /> 05/08/01 4.17 298 8.57 42.4 5.48 59.0 8.57 <br /> 5/14-16/011f1 ---- 939121 18.5 118 12.6 160 <25.0/<2A0131 <br /> 05/22/01 2.38 1,380 30.6 193 27.1 293 <12.5 <br /> 06/05/01 ---- 530 23 89 8.7 90 <12 <br /> 06/19/01 4.13 760 34 160 19 77 <25 <br /> 07/03/01 3.86 960 49 270 28 180 <25 <br /> 07/17/01 4.11 <2,000 88 500 62 320 <100 <br /> 07/31/01 ---- 2,800 110 590 85 420 <2.5 <br /> 240042,11-3 4 <br />