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Table 1 <br /> Groundwater Elevation and Analytical Data <br /> Former BP Service Station No 11194 <br /> 2375 Tracy Blvd, Tracy CA <br /> Top of Depth to Water Level Ethyl- Total <br /> Well Date P! Casing Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP Elevation (feet bgs) (feet msl) (ug1L) (ug1L) W/L) (1rg1L) (jrg/L) (Erg/L) (pg/L) (mg1L) Comments <br /> MW-6 7/31/2001 -- 2563 472 20 91 14,000 -- 186 458 346 942 301 <br /> 10!3012001 — 2563 479 20 84 13,000 — 202 ND<25 100 ND<75 165 <br /> 1/29/2002 — 2563 425 21 38 12,000 — 256 836 145 269 344 <br /> 4/3012002 2563 461 2102 8,800 — 116 ND<12 5 548 ND<25 166 <br /> 7/30/2002 2563 Parked Over-Not Sampled <br /> 10/31/2002 P 2563 490 2073 44,000 -- 270 1,200 510 2,100 1,800 -- <br /> 01130/2003 P 2563 469 2094 8,500 J — 23 J <5 0 UJ 65 J <5 0 UJ 62 J - <br /> 04130l2003 P 2563 454 21 09 4 909 -- 35 <10 44 <10 26 — <br /> 07/30/2003 P 2563 518 2045 22 000 -- <25 <25 <25 <25 <25 — <br /> 10/29/2003 P 2563 499 2064 4,700 -- 14 <2 5 23 <25 <25 — <br /> 01/26/2004 P 2563 450 2113 7,400 -- 10 <10 UJ 35 <10 <10 -- <br /> MW-7 2/911987 - — -- — 6,300 -- 420 92 - <br /> 9/21/1987 - - — ND<50 — ND<0 5 ND<O 5 — ND<O 5 — -- <br /> 10/20/1987 — - - 65 -- ND<O 5 ND<O 5 -- 007 -- — <br /> 11/2011987 - — — — ND<50 — ND<O 5 ND<O 5 — ND<O 5 — -- <br /> 3/13/1988 — 265 675 1975 -- — — - - — -- <br /> 3/23/1988 -- 265 696 1954 57 -- 59 ND<0 5 -- 1 -- - <br /> 6/7/1988 -- 265 675 1975 -- — ~ — -- ~ <br /> 10/18/1988 -- 265 710 1940 ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 — — <br /> 2/15/1990 — 265 580 2070 3,400 - 94 73 70 170 — -- <br /> 4/26/1990 -- 265 663 19 87 — -- — — ~ — -- <br /> 7/12/1990 -- 265 666 1984 ND<50 — ND<0 3 ND<O 3 ND<O 3 ND<0 3 — -- <br /> 8127/1990 -- 265 686 1964 - <br /> 11/2/1990 -- 265 703 1947 <br /> 11/5/1990 -- 265 704 1946 ND<50 -- ND<O 3 ND<O 3 ND<0 3 ND<O 3 — "- <br /> 2/25/1991 -- 265 630 2020 ND<50 — ND<0 3 ND<0 3 ND<O 3 ND<0 3 — -- <br /> 6/27/1991 - 265 714 1936 ND<50 -- ND<O 5 N0<0 5 ND<O 5 ND<O 5 — - <br /> 9/25/1991 -- 265 850 1800 ND<30 — ND<O 30 ND<O 30 ND<O 30 ND<O 30 — -- <br /> 12/10/1991 -- 265 698 1952 ND<30 — ND<O 30 ND<O 30 ND<O 30 ND<O 30 - -- <br /> 3/25/1992 — 265 653 1997 ND<30 — ND<O 30 ND<O 30 ND<O 30 ND<0 30 -- <br /> 6/25/1992 — 265 813 1837 ND<30 — ND<0 30 ND<O 30 ND<O 30 ND<O 30 — - <br /> 12/8/1992 - 265 689 19 61 ND<50 — ND<O 5 ND<O 5 ND<O 5 1 ND<O 5 — - <br /> 3/10/1993 — 265 654 1996 ND<50 — ND<0 5 <br /> Page 20 of 24 <br /> - <br /> Report Date Apn!28,2004 <br />