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it <br /> Table 1 <br /> Groundwater Monitoring Data <br /> 1995 to Present <br /> ARCO Service Station No 2130 <br /> 7906 North EI Dorado Street, Stockton, California <br /> Elevation Static Water Groundwater Ethyl- Total <br /> Well Top of Castng Top of Screen Level Elevation TPHG Benzene Toluene benzene Xylene MTBE <br /> Number bate (feet ms]) (feet b s) (feet bgs) (feet ms1) pg/L g/L pg/L ltg/L g/L µ L Observations <br /> MW-2 02/28/95 15 19 6000 5508 -39 89 110 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-2 05/19/95 15 19 53 15 -3796 400 23 <0 5 2 1 <0 5 NA No FP,No S <br /> MW-2 08/28/95 15 19 5483 -3964 650 84 <1* 9 3 1 1 NA No FP,No S <br /> MW-2 12/07/95 15 19 5347 -3829 540 18 <1* 3 <1* NA No FP,No S <br /> MW-2 02/05/96 15 19 5193 -3674 310 2 8 0 6 1 3 08 NA No FP,No S <br /> MW-2 05/30/96 15 19 4791 -3272 510 31 10 5 9 1 3 <7** No FP,No S <br /> MW-2 09/18/96 15 19 51 80 -3661 920 150 <2 5* 22 3 5 <15* No FP,No S <br /> MW-2 11/26/96 15 19 4960 -3441 520 21 <0 5 2 7 0 6 7 No FP,No S <br /> MW-2 03/24/97 15 19 4450 -2931 <500*** <3** <3** <3** <3** <20** No FP,No S <br /> MW-2 05/20/97 15 19 45 09 -2990 720 71 <1* 13 1 1 <6* No FP,No S <br /> MW-2 08/19/97 15 19 4869 -3350 1,200 240 <5 41 <5 <50** No FP,No S <br /> MW-2 11/19/97 15 19 4677 -3158 <50 17 0 89 <0 5 0 87 <5 No FP,No S <br /> MW-2 03/04/98 15 19 42 18 -2699 <50 2 2 <0 5 <0 5 <0 5 5 1 No FP,No S <br /> MW-2 06/26/98 15 19 3987 -2468 534 365 <0 5 <0 5 1 12 652 No FP,No S <br /> MW-2 09/01/98 15 19 41 61 -2642 322 48 4 <0 5 169 1 67 <5 No FP,No S <br /> MW-2 12/02/98 15 19 38 94 -2375 390 <0 5 <0 5 0 735 <0 5 15 8 No FP,No S <br /> MW-2 03/31/99 15 19 35 38 -2019 987 6 6 069 0 579 233 655 No FP,No S <br /> MW-2 06/04/99 15 19 3667 -21 48 184 11 9 <0 5 103 0 669 12 6 No FP,No S <br /> MW-2 09/02/99 15 19 41 23 -2604 4,820 764 <10 375 <10 191 No FP,No S <br /> MW-2 11/29/99 15 19 3936 -24 17 79 1 425 <0 5 <0 5 1 14 654 No FP,No S <br /> MW-2 03/16/00 15 19 35 39 -2020 <50 <0 5 <0 5 <0 5 <0 5 2 89 No FP,No S <br /> MW-2 06/26/00 15 19 3799 -22 80 435 33 0 588 122 206 6 3[2] No FP,No S <br /> MW-2 09/28/00 15 19 4224 -2705 165[3] 658 <0 5 0 618 0 669 3 62[2] No FP,No S <br /> PAVILION1MyDocumen,s\ARCO\21301QTRLY1200012130Q300 Delta <br /> Page 2 of 10 11/22/00 <br />