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Table 3 <br /> Historical Groundwater Analytical Results <br /> Former Unocal Station No 5098 <br /> 5400 and 5606 Pacific Avenue <br /> Stockton,California <br /> SAMPLE DTW TPHg BENZENE n-BUTYL sec-BB 1,2-DCA EB IPB MTBE NAPHT n-PB TOLUENE 1,2,4-TMB 1,3,5-TMB XYLENES Methanol Ethanol <br /> ID (ft) (uglL) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (U91L) (U91L) (U91L) u L (49/N u L <br /> VEw-4 <br /> 03/18/98 3800 22900 3050 <50 <50 <50 1220 65 <100 390 190 465 1230 420 2907 NA NA <br /> 06/24/98 3568 9200 1180 <10 <10 <50 173 13 <20 18 14 79 367 181 738 NA NA <br /> 09/16/98 3852 7110 315 <1 0 17 <1 0 150 348 <2 0 138 504 38 534 234 2727 NA NA <br /> 12/22/98 3341 4240 271 <10 15 <10 81 11 <20 30 14 42 118 94 208 NA NA <br /> 03/18/99 31 09 5160 326 <1 0 28 <1 0 129 73 <2 0 28 125 249 136 614 539 NA NA <br /> 06/18/99 3383 2350 400 <1 0 <1 0 <1 0 819 71 <2 0 182 84 149 124 532 433 NA NA <br /> Not accessible due to the presence of remediation equipment <br /> VEW-5 <br /> 03/18/98 3755 13100 2800 <50 <50 <50 1130 60 <100 110 160 210 500 180 1000 NA NA <br /> 06/24/98 3557 28800 1830 <50 <50 <100 1360 60 <100 123 135 3610 1080 325 4760 NA NA <br /> 09/16198 3847 10300 668 501 11 1 449 729 483 <2 0 418 895 368 611 283 1076 NA NA <br /> 12/22/98 3313 16000 1870 <10 <10 <10 1190 79 <20 184 213 85 876 327 1424 NA NA <br /> 03/18/99 3086 14800 1590 <10 <10 <10 982 49 <20 175 125 422 562 213 1839 NA NA <br /> 06/18/99 3375 7480 859 <10 <10 <10 543 39 <20 184 87 35 688 202 1353 NA NA <br /> Not accessible due to the presence of remediation equipment <br /> VEW-6A <br /> 12/01/03 NM NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Not accessible due to the presence of remediation equipment <br /> VEW-7A <br /> 12/01/03 NM NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Not accessible due to the presence of remediation equipment <br /> VEW-8A <br /> 12/01/03 NM NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Not accessible due to the presence of remediation equipment <br /> VEW-9A <br /> 12/01/03 NM NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Not accessible due to the presence of remediation equipment <br /> VEW-10A <br /> 12/01/03 NM NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Not accessible due to the presence of remediation equipment <br /> O6940-293 31 of 33 ENSR Corporation <br />