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TABLE 2 <br /> ANALYTICAL DATA. GROUND WATER <br /> Port of Stockton Former UST Site No 3,San Joaquin County <br /> Results reported in p g/1(Parts per billion=ppb) <br /> Well Date TPH-g Benzene Toluene Ethylbenzene Xylenes MtBE <br />' Number Sampled EPA 8015-m EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 <br /> MW3-3 07/09/99 8,420 113 2,506 886 1,772 N D <br /> 10/22/99 7,220 207 680 221 1,360 ND <br /> 02/08/00 4,500 150 460 180 880 N A- <br /> 05/17/00 1,600 93 560 180 737 N A. <br /> 09/14/00 6,800 37 190 79 330 N A <br /> 02/14/01 8,800 12 500 195 840 N D <br /> 5/17/01 3,010 22 420 159 650 N A <br /> 08/22/01 6,570 108 770 210 850 N A <br />' 11/19/01 4,600 74 950 560 640 N A <br /> 2/19/02 4,850 174 450 114 570 N A <br /> 5/16/02 4,930 12 256 130 481 N A <br />' 8/20/02 3,500 140 350 80 328 N A <br /> 11/25/02 1,540 12 110 47 181 NA <br /> Repot Linuts 50 pg/l 0 5 pgfl 0 5 pg/1 <br />' N D Analyte not detected at reporting limits listed to laboratory report <br /> N A Not Analyzed <br /> SUMMARY OF FINDINGS <br /> On November 25, 2002, field personnel sounded and sampled the Port's former UST Site No 3 <br /> monitoring wells MW3-1 through MW3-3 Groundwater elevation data is available for only two of <br /> the three site monitoring wells Groundwater flow direction and gradient could not be calculated <br /> with only two data points The depth to groundwater on November 25, 2002 was about 12 7 feet <br /> Groundwater samples were collected from the monitoring wells on November 25, 2002 and <br /> analyzed for TPHg by EPA Modified Method 8015, and BTEX by EPA Method 8260 No free <br />' phase hydrocarbon was observed in the monitoring wells <br /> The following is a comparison of the November 25, 2002 groundwater sample results to the <br /> previous quarter, dated August 20, 2002, <br /> In monitoring well MW3-1, benzene, toluene, ethylbenzene, xylenes, and TPHg decreased <br />' in concentration as compared to last quarter The sample was not analyzed for MtBE <br /> In monitoring well MW3-2, ethylbenzene, and xylenes increased in concentration as <br /> compared to last quarter TPHg, benzene, and toluene decreased in concentration as <br /> compared to last quarter The sample was not analyzed for MtBE <br />' In monitoring well MW3-3, benzene, toluene, ethylbenzene, xylenes, and TPHg decreased <br /> in concentration as compared to Iast quarter The sample was not analyzed for MtBE <br />' ust stte3 qtr l3 doc 8 <br />