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! ! • <br /> Table 1 <br /> I <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station No 2130 <br /> 7906 N EL Dorado Street, Stockton, CA <br /> TOC Depth to Water Level Ethyl- Total <br /> Well Date PI Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes AMtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (uglL) (pg1L) "/L) (pg/L) (prg1L) (pg1L) (g91L) (mg1L) Comments <br /> MW-5 3/15/2001 -- 1510 3550 -2040 91 6[3] -- <2[4] 6 71 [4] <2[4] <2[4] 89 2[2] -- <br /> 6/20/2001 -- 1510 3882 -2372 78[3] -- 2 5[4] 5 5[4] 4 7[4] 11[4] 60[2] — <br /> 9/12/2001 -- j 1510 4305 -2795 <50 -- <2[4] <2[4] <2[4] <2[4] 29[2] -- <br /> 12112/2001 -- 1510 3989 -2479 <50 — <1 0[4] <1 0[4] <1 0[4] 1 2[4] 25[2] — <br /> 3/13/2002 — 1510 3699 -2189 <50 -- <050 061 <0 50 <0 50 35[2] — <br /> 6/18/2002 — 1510 3919 -2409 <50 -- <0 50 061 <0 50 33 7 8[2] — <br /> 9/11/2002 -- 1510 4433 -2923 63 — 34 5 19 14 9 1[2] -- <br /> 12/18/2002 - 1510 41 68 -2558 <50 — <050 44 <0 50 58 20[2] -- <br /> 03/06/2003 P 1510 3934 -2424 <50 — 15 17 051 32 3 0[2] 06 <br /> 06/11/2003 P 1510 3868 -2358 51 -- 27 55 12 84 4 2[2] 267 <br /> 09/23/2003 P 1510 4270 -2760 95 — <2 5 25 <2 5 11 6 0[2] — <br /> 12/09/2003 P 1510 4173 -2663 <50 — <0 50 <0 50 <0 50 079 <0 50[2] — <br /> 03/09/2004 P 1510 3942 -2432 950 — 34 066 71 <0 50 4 6[2] 208 <br /> 06/23/2004 P 1510 4428 -2918 66 -- 33 87 14 10 1 8[2] 243 <br /> 09/2012004 P 1510 4844 -3334 <50 -- <10 <10 <10 <10 <10[2] 08 <br /> MW-6 12/4/1992 — 1455 6340 NA 330 -- <05 <0 5 <0 5 <0 5 NA — No FP,No S <br /> 1/20/1993 -- 1455 6187 4732 NA -- NA NA NA NA NA -- No FP,No S <br /> 1/2911993 — — -- -- 120 -- <05 <0 5 <05 <0 5 NA — No FP,No S <br /> 3/22/1993 — 1455 60 28 4573 NA — NA NA NA NA NA — No FP,No S <br /> 4/6/1993 — 1455 5974 4519 160 — 06 <0 5 <0 5 <0 5 NA — No FP,No S <br /> 7/30/1993 -- 1455 6040 4585 170 — <0 5 <05 <05 <05 NA — No FP,No S <br /> 11/29/1993 - 1455 5961 4506 150 — <0 5 <0 5 <05 <0 5 NA -- No FP,No S <br /> 3/23/1994 — 1455 5460 4005 270 — 69 69 6 29 NA — No FP,No S <br /> 6/22/1994 -- 1455 5466 4011 <10 — 03 <03 <03 <05 NA — No FP,No S <br /> 9/28/1994 -- 1455 5850 4395 <50 — 12 1 <05 <0 5 NA - INo FP,No S <br /> 12/1/1994 - 1455 5746 4291 <50 -- 08 <05 <05 <05 NA — No FP,No S <br /> 2/28/1995 - 1455 5454 -3999 55 -- <0 5 <05 <05 <0 5 NA — No FP,No S <br /> 5/19/1995 -- 1455 5259 -3804 96**' -- <0 5 <05 <05 <0 5 NA -- No FP No S <br /> 8/28/1995 -- 1455 5425 -3970 120 — <0 5 <05 <0 5 <0 5 NA -- No FP, No S <br /> 12/7/1995 — 14 55 5291 -3836 <200** — <0 5 <0 5 <0 5 <0 5 NA -- No FP,No S <br /> 2/5/1996 — 1455 5039 -3584 130 — <0 5 <05 <0 5 <0 5 NA — No FP,No S <br /> 5/30/1996 — 1455 4738 -3283 140*" — <0 5 <05 <0 5 <0 5 <3 — No FP,No S <br /> 9/18/1996 -- 1455 5126 -3671 <200*** — <0 5 <0 5 <0 5 <05 <3 — No FP,No S <br /> Report Date October 25,2004 Page 11 of 21 <br />