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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) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> NP-2-22(con't) 03/13/01 197 347 145 356 282 4 10 134 <br /> 03/27/01 189 346 223 <0 500 602 969 16 6 <br /> 04/10/01 231 409 293 <2 50 541 697 274 <br /> 04/24/01 272 439 327 479 576 414 <12 5 <br /> 05/08/01 268 190 272 3 56 492 395 438 <br /> 05/14-16/01111 -- 3731�1 195 300 421 187 <5 00/<2 00131 <br /> 05/22/01 200 294 110 0 551 175 447 574 <br /> 06/05/01 ---- 180 71 14 12 14 31 <br /> 06/19/01 240 64 13 <0 50 <0 50 <0 50 <2 5 <br /> 07/03/01 239 100 5 2 <1 0 <1 0 <1 0 <5 0 <br /> 07/17/01 424 130 2 1 057 <0 50 14 4 3 <br /> 07/31/01 — 180 1 1 <0 50 060 0 53 <2 5 <br /> 08/13-15/011'1 ---- 1001�1 18 2 4 078 12 <5 0/<2 0[3] <br /> 11126-28/01E11 ---- 130[5] <0 50 2 5 <0 50 18 <5 0/16 J3, <br /> 02/25-27102111 --- 220[5] <0 50 061 <0 50 <0 50 <5 0/2 0[31 <br /> 05/07-09/021 ---- 340141 6 8 2 6 14 18 58/1 9131 <br /> 05/21/02 ---- 200[61 4 9 055 054 <0 50 17 <br /> 06/19/02 ---- 350161 9 7 099 <0 50 <0 50 38 <br /> 07/19/02 ---- 52 1 1 <0 50 <0 50 <0 50 6 <br /> 8/12-14102'1 ---- <50 <0 50 1 1 <0 50 071 <1 0 <br /> 08/22/02 ---- <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 /> 11/05-06/0211 --- <50 <0 50 <0 50 <0 50 <0 50 <2 0 <br /> 11/21/02 ---- <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 /> 02/04-06/031'1 ---- <50 <0 50 <0 50 <0 50 <0 50 <2 0 <br /> 240042 11-2 7 <br />