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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 l❑ Date m) (ppb) b) b b) b) b) <br /> NP-2-60(con't) 05/21/02 ---- 18,000161 5,900 270 420 290 <500 <br /> 06/19/02 ---- 11,000161 5,000 200 340 190 310 <br /> 7/19/2002 ---- 8,600161 3,300 230 220 180 430 <br /> 8/12-14102111 ---- 7,400 3,500 100 <50 140 4901<1.0131 <br /> 08/22/02 ---- 6,200[61 2,400 120 <50 100 <250 <br /> 09/20/02 ---- 7,000 2,300 87 48 110 <100 <br /> 10/21/02 ---- 5,300 1,900 67 <25 73 <120 <br /> 11105-06/02f1 ---- 220 13 <0.50 <0.50 <0.50 8.9/<2,0131 <br /> 11/21/02 ---- 3,700 1,700 33 35 84 <62 <br /> 12/18/02 ---- 2,300 160 41 28 50 <8.0 <br /> 01/23/03 ---- <50 <0.50 <0.50 <0.50 <0.50 <2.0 <br /> 02/04-06/03"' ---- 2,600 1,100 35 <10 44 <2.0 <br /> 03/21/03 ---- 59 0.59 <0.50 <0.50 <0.50 <40/<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 /> 5/27-30/031'1 ---- 860 290 15 2.8 31 34/<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 /> 8/26-29/0311 ---- 330 65 9.0 1.9 27 5.8/<0.50131 <br /> 09/18/03 ---- 550161 64 5.9 1.8 19 <0.50 <br /> NP-2-116 11/20-22/00 ---- 2111�J 24.5 3.13 1.19 2.24 <5.00/<2.00131 <br /> 12/07/00 ---- 126123 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 /> 12/26/00 4.25 118 15.2 <0.500 <0,500 <0.500 <2.50 <br /> 240042.11-3 11 <br />