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TPHg by EPA Modified Method 8015, aromatics MTBE, benzene, toluene, ethylbenzene, and total <br /> xylenes (BTEX) constituents by EPA Method 8260 No gasoline as free product was observed in <br />' any well <br /> The results of all current and previous groundwater sampling analyses are summarized in Table 2 <br /> PET laboratory reports dated February 14, 2001 and chain-of-custody are included as Appendix B <br /> TABLE 2 <br /> 1 ANALYTICAL DATA GROUNDWATER <br /> Port of Stockton Former UST Site No 3,San Joaquin County <br /> Results r orted to 1 Parts per billion= b <br /> Well TPH-g Benzene Toluene Ethylbenzene Xylenes MTBE <br /> Number 17;Z;71 EPA 8015-m EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 <br /> MW3-1 07/09/99 610 18 302 236 791 N D <br /> 10/22/99 2,750 270 120 49 390 N D <br /> 02/08/00 1,800 12 85 30 180 N A <br /> 05/17/00 180 120 82 38 428 N A <br /> 09/14/00 400 11 11 60 44 N A <br /> 02/14/01 1 420 3 0 29 8 3 24 N D <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 3,200 153 38 0 12 2 200 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 /> 02/14/01 7,000 215 1,115 315 870 N D <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 N D <br /> 02/08/00 4,500 15 0 460 180 880 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 /> Reporting Limits 50 1 0 5 l 0 5 l <br /> N D Analyte not detected at reporting lrrruts listed in laboratory report <br /> N A Not Analyzed <br /> SUMMARY OF FINDINGS <br /> On February 14 2001 field personnel sounded and sampled the Port's former UST Site No 3 <br /> O eb ary p p <br /> monitoring wells MW3-1 through MW3-3 At that time, the local direction of groundwater flow <br /> rwas calculated at approximately S 22°W along a gradient of 0 035 feet/foot (equivalent to 35 feet of <br /> dip per 1000 feet of horizontal distance) The average depth-to-water on February 14 was 1123 <br /> 1 feet below the casing-tops of the three project monitoring wells <br /> Groundwater samples were collected from the monitoring wells on February 14, 2001 and analyzed <br /> for TPHg by EPA Modified Method 8015, MTBE and BTEX by EPA Method 8260 No gasoline <br /> ust siW3 gtr6 doc 5 <br />