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Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station No 6080 <br /> 85 E Louise Avenue, Lathrop, CA <br /> TOC Depth to Water Level Ethyl- Total <br /> Well Date PI Elevation Water Elevation TPI-Ig TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pg/L) (pg/L) (pg/L) WIL) (Pg1L) (pg/L) (P9/L) (mg/L) Comments <br /> MW-1 6/23/2000 P 1448 847 601 <50 – <0 5 <0 5 <0 5 <0 5 454 .- <br /> 9/8/2000 NP 1448 953 495 613[1] -- <05 <0 5 <0 5 129 21 0 – <br /> 12/1112000 NP 144 997 451 387[2] -- <05 <05 <0 5 189 187 – <br /> 3/22/2001 P 1448 891 557 84 6[2] – 3 4l <05 <0 5 <0 5 145 – <br /> 6/25/2001 P 1448 937 511 <50 -- <0 5 <05 <0 5 <0 5 170 – <br /> 9/24/2001 P 1448 1040 408 <50 – <05 <0 5 <0 5 <0 5 29 -- <br /> 12/3/2001 P 1448 1032 416 <50 -- <050 <0 50 <0 50 <0 50 150 -- <br /> 3/18/2002 P 1448 894 554 <50 - <0 50 <0 50 <0 50 14 48 <br /> 6/20/2002 P 1448 980 4 68 <50 - <0 50 <0 50 <0 50 <0 50 18 <br /> 9/9/2002 P 1448 999 4 49 <50 - <0 5 <0 5 <0 5 <05 22 -- <br /> 12/6/2002 P 1448 1059 389 <50 – <0 5 <05 <0 5 <0 5 26 <br /> 03/14/2003 P 1448 992 4 56 <50 - <0 50 <0 50 <0 50 <0 50 052 125 <br /> 06/06/2003 P 1448 921 527 <50 -- <0 50 <0 50 <0 50 <0 50 19 339 <br /> 09/15/2003 P 1448 1047 401 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 1 <br /> 12/04/2003 P 1448 1021 427 <50 -- <0 50 <0 50 <0 50 <0 50 12 – <br /> L06/ <br /> 05/2004 P 1448 9'81 467 <50 <0 50 <0 50 <0 50 <0 50 1 8 221107/2004 P 1448 1019 429 <50 -- <0 50 <0 50 <0 50 <0 50 084 10 <br /> P 1448 1068 380 <br /> I <br /> MW-2 6/23/2000 P 1363 7173 590 <50 - <0 5 <0 5 <0 5 <05 166 -- <br /> 9/8/2000 NP 1363 8'67 496 <50 -- <05 <05 <0 5 <0 5 102 – <br /> 12/11/2000 NP U 63 9114 449 <50 -- <05 <05 <0 5 <05 284 -- <br /> 3/2212001 P13 63 805 5 58 <50 – <05 <0 5 <0 5 <0 5 31 6 -- <br /> 6/25/2001 P 1363 8 157 506 <50 -- <0 5 <0 5 <05 <0 5 36 -- <br /> 9/24/2001 P 1363 9158 405 <50 - <0 5 <05 <0 5 <0 5 56 – <br /> 12/3/2001 P 1363 9'49 414 <50 – <0 50 <0 50 <0 50 <0 50 58 – <br /> 3/18/2002 P 1363 8114 549 <50 - <050 <0 50 <0 50 <0 50 43 -- <br /> 3/18/2002 P 1363 9'00 463 <50 -- 1 9 <0 50 <0 50 <0 50 56 – <br /> 9/9/2002 P 1363 9 119 444 170 -- 14 <0 5 55 25 120 – <br /> 12/6/2002 P 1363 9 79 384 53 - <0 5 <0 5 <0 5 <0 5 <26 03114/2003 P 1363 9 115 4 48 120 -- <0 50 <0 50 <0 50 <0 50 82 149 <br /> 06!0612003 P 1363 879 484 <50 – <0 50 <0 50 <0 50 <0 50 079 312 <br /> 09/15/2003 P 1363 9 71 392 <50 <0 50 <0 50 <0 50 <0 50 78 09 <br /> 12/04/2003 P 1 13 63 [-9'48 4 15 <50 050 <0 50 <0 50 <0 50 99 -- <br /> Report Date October 12,2004 Page 1 of 3 <br /> �r � <br />