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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 po(Parts per billion= b <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 /> MW3-2 07/09/99 640 119 296 219 666 N D <br /> 10/22/99 4,100 49 270 50 320 N D <br /> 02/08/00 3,200 15 3 380 122 200 N A <br /> 05/17/00 790 64 174 19 181 N A <br />' 09/14/00 6,600 150 660 370 530 N A <br /> 02114/0) 7,000 215 1,115 315 870 N D <br /> 5/17/00 4,170 132 626 120 796 N A <br /> 08/22/01 5,290 44 490 170 600 N A <br /> MW3-3 07/09/99 8,420 113 2,506 886 1,772 N D <br /> I0/22/99 7,220 207 680 221 1,360 N D <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 1 210 850 N A <br /> Reporting Limits 50µ l 1 0 5 p I 05pgAl <br /> ND Analyte not detected at reporting limits listed in laboratory report <br /> N A Not Analyzed <br />' SUMMARY OF FINDINGS <br /> On August 22, 2001, field personnel sounded and sampled the Port's former UST Site No 3 <br /> monitoring wells MW3-1 through MW3-3 At that time, the local direction of groundwater flow <br /> was calculated at approximately W 320 S along a gradient of 0 0044 feet/foot (equivalent to 4 4 feet <br /> of dip per 1000 feet of horizontal distance) The average depth-to-water on August 22, 2001 was <br /> 12 36 feet below the casing-tops of the three project monitoring wells <br /> Groundwater samples were collected from the monitoring wells on August 22, 2001 and analyzed <br />' for TPHg by EPA Modified Method 8015, MTBE and BTEX by EPA Method 8260 No gasoline <br /> as free product was or has ever been observed in any well <br />' The change in groundwater gradient and direction are indicative of the influence of the Deep Water <br /> Channel, which is 1,200 feet northeast of the site <br />' The following is a comparison of the August 22, 2001 groundwater sample results to the previous <br /> quarter, dated May 17, 2001 <br /> In monitoring well MW3-1, TPHg and volatile organic hydrocarbons benzene, toluene, <br /> ust WO gtr8 doc 7 <br /> 1 <br />