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• • s <br /> 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) b) (ppb) b) (ppb) b) (ppb) <br /> NP-2-22(con't) 02/25-27/02'' ---- 220'-" <0.50 0.61 <0.50 <0.50 <5.0/2,0"' <br /> 05/07-09/0211 ---- 340141 6.8 2.6 1.4 1.8 5.8/1.9131 <br /> 05/21/02 ---- 200161 49 0.55 0.54 <0.50 17 <br /> 06/19/02 ---- 350161 9.7 0.99 <0.50 <0.50 38 <br /> 07/19/02 ---- 52 1.1 <0.50 <0.50 <0.50 6 <br /> 8112-14/021'1 ---- <50 <0.50 1.1 <0.50 0.71 <2.5/<1.0131 <br /> 08/22/02 ---- <br /> <50 <0.50 <0.50 <0.50 <0.50 <2.5 <br /> 09/20/02 ---- <50 <0.50 <0.50 <0.50 <0.50 <2.5 <br /> 10/21/02 ---- <50 <0.50 <0.50 <0.50 <0.50 <2.5 <br /> 11105-06/021" ---- <50 <0.50 <0.50 <0.50 <0.50 <2.5/<2,0131 <br /> 11/21/02 ---- <br /> <50 <0.50 <0.50 <0.50 <0.50 <2.5 <br /> 12/18/02 ---- <50 <0.50 <0.50 <0.50 <0.50 <2.0 <br /> 01/23/03 ---- <50 <0.50 <0.50 <0.50 <0.50 <2.0 <br /> 02/04-06/03111 ---- <50 <0.50 <0.50 <0.50 <0.50 <2.0/<2.0131 <br /> 03/21/03 ---- <50 <0.50 <0.50 <0.50 <0.50 <2.0 <br /> 04/22/03 ---- 170161 2.7 <0.50 <0.50 <0.50 11 <br /> 05/20/03 ---- 140 1.4 <0.50 <0.50 <0.50 4.1 <br /> 5/27-30103f1 ---- <50 <0.50 <0.50 <0.50 <0.50 <2.0/<0.50131 <br /> 06/20/02 ---- 140 1.4 <0.50 <0.50 0.74 4.2 <br /> 07/22/03 ---- <50 <0.50 <0.50 <0.50 0.59 <2.0 <br /> 08/22/03 ---- 750 7.4 5.2 9.4 6.2 <4.0 <br /> 8/26-29/031'1 ---- <50 <0.50 <0.50 <0.50 <0.50 <2.0/<0.50131 <br /> 09/18/03 ---- <br /> <50 <0.50 <0.50 <0.50 <0.50 <0.50 <br /> NP-2-60 11120-22/00['] ---- 13,300f�1 4,350 191 498 527 <500/<66.7131 <br /> 12/07/00(" ---- 20,400{21 5,580 257 587 678 ---- <br /> Baseline 1218/00 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 /> 240042.11-3 9 <br />