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Table 1 <br /> Groundwater Elevation and Analytical Data <br /> Former BP Retail Site No 11194 <br /> 2375 Tracy Blvd, Tracy, CA <br /> TOC Depth to Water Level Ethyl- Total <br /> Well Date P/ Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet ms]) (feet bgs) (feet msl) WgIL) (pg1L) (PgtL) (AIL) (ug1L) (I.g/L) (pg1L) (mgIL) Comments <br /> MW-6 7/22/2000 — 2563 508 2055 300,000 — 210 ND<75 1,700 1,100 1,300 — <br /> 10/26/2000 — 2563 475 2088 220 000 — 580 400 1,400 1,600 1,800 -- <br /> 1/17/2001 -- 2563 -- — — - — — _ — — — <br /> 4/12/2001 — 2563 458 2105 13,000 — 178 57 419 165 528 — <br /> 5/23/2001 -- 2563 480 2083 17,000 — 259 117 515 272 159 — <br /> 7/31/2001 — 2563 472 2091 14,000 -- 186 458 346 942 301 — <br /> 10/30/2001 -- 2563 479 2084 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 /> 4/30/2002 — 2563 461 2102 8,800 — 116 ND<12 5 548 ND<25 166 -- <br /> 7/30/2002 2563 — — -- -- — — -- — — — Parked Over-Nat Sampled <br /> 10/31/2002 P 2563 490 2073 44,000 — 270 1,200 510 2,100 1,800 -- <br /> 01/30/2003 P 2563 469 2094 8,500 J — 23 J <5 0 UJ 65 J <5 0 UJ 62 J — <br /> 04/30/2003 P 2563 4 54 21 09 4,900 -- 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 4 99 2064 4,700 — 14 <2 5 23 <2 5 <2 5 — <br /> 01/26/2004 P 2563 450 2113 7,400 — 10 <10 UJ 35 <10 <10 -- <br /> 04/28/2004 P 2563 494 2069 11 000 -- 51 058 11 <0 50 23 — Water Level data from <br /> 4127104 <br /> 07/30/2004 P 2563 528 2035 5,500 -- <25 <25 <25 <25 28J — <br /> MW-7 2/9/1987 -- — -- — 6,300 -- 420 92 — 1,200 -- -- <br /> 9/21/1987 — — — -- ND<50 — ND<0 5 ND<0 5 -- ND<0 5 — - <br /> 10/20/1987 — -- — — 65 — ND<0 5 ND<0 5 — 007 — — <br /> 11/20/1987 -- - — ND<50 - ND<0 5 ND<0 5 — ND<0 5 — - <br /> 3/13/1988 -- 2650 675 1975 -- -- -- — — -- -- <br /> 3/23/1988 — 2650 696 1954 57 — 59 ND<0 5 - <br /> 6/7/1988 2650 675 1975 -- - — <br /> 10/18/1988 — 2650 710 1940 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 — — <br /> 2/15/1990 -- 2650 580 2070 3,400 — 94 73 70 170 — - <br /> 4/26/1990 — 2650 663 1987 — — — — — -- -- <br /> 7/12/1990 -- 2650 666 1984 ND<50 ND<0 3 ND<0 3 ND<0 3 ND<0 3 — - <br /> 8/27/1990 -- 2650 686 1964 -- — - - — -- - — <br /> 11/2/1990 -- 2650 703 1947 <br /> 11/5/1990 — 2650 704 1946 ND<50 — ND<0 3 ND<0 3 ND<0 3 ND<0 3 — — <br /> Report Date September 10,2004 Page 21 of 26 <br /> I <br />