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Table 2 <br /> Fuel Oxygenates Analytical Data <br /> • Former BP Retail Site No 11194 <br /> 2375 Tracy Blvd, Tracy, CA <br /> Well Date Ethanol TBA MtBE DIPE ELBE TAME <br /> Number Sampled (pg/L) WL) (pglL) (pg/L) (pg/L) (pg/L) Comments <br /> AMW-5 10/28/2004 <100 34 29 <1 0 <1 0 <1 0 <br /> 01/31/2005 <100 <20 <0 50 <1 0 <1 0 <1 0 <br /> .04/29120051 <100 46 084 <0 50 <0 50 <0 50 <br /> AMW-6 01/30/2003 — -- 41 — — -- <br /> 04/30/2003 -- -- 23 -- — — <br /> 07/30/2003 <500 <100 16 <5 0 <5 0 <50 <br /> 10/29/2003 <100 <20 27 <1 0 <1 0 <1 0 <br /> 01/26/2004 <100 <20 16 <10 <10 <10 <br /> 04/2712004 <100 <20 093 <1 0 <1 0 <1 0 <br /> 07/30/2004 <100 <20 057 <0 50 <0 50 <0 50 <br /> 10/28/2004 <100 <20 069 <1 0 <1 0 <1 0 <br /> 01/39/2005 <100 <20 17 <10 <10 <10 <br /> 04/29/2005 <100 <20 <0 50 <0 50 <0 50 <0 50 <br /> MW-1 01/30/2003 — — <0 50 -- — — <br /> 04/30/2003 -- — — — — — <br /> 07/30/2003 <100 <20 <0 50 <1 0 <1 0 <1 0 <br /> 10/29/2003 <100 <20 <0 50 <1 0 <1 0 <1 0 <br /> 01/26/2004 <100 <20 <0 50 <1 0 <1 0 <1 0 <br /> 04/27/2004 <100 <20 <0 50 <1 0 <1 0 <1 0 <br /> 07/30/2004 <100 <20 <0 50 <0 50 <0 50 <0 50 <br /> 10/28/2004 -_ — — — Sampled Annually 3rd Quarter <br /> 01/31/2005 Sampled Annually 3rd Quarter <br /> 04/29/2005 -- -- -- — -- -- Sampled Annually 3rd Quarter <br /> MW-2 4/12/2000 - -- 9,600 ND<250 ND<250 ND<250 <br /> 7/22/2000 - 25 000 120,000 ND<25 ND<25 ND<25 <br /> 10/26/2000 -- 4,300 3,300 ND<100 ND<100 ND<100 <br /> 1/17/2001 -- 17,000 29,000 ND<1 0 ND<1 0 ND<i 0 <br /> 4/12/2001 — 1,100 700 ND<10 ND<10 ND<10 <br /> 7/30/2002 -- -- 586 -- — <br /> 10/31/2002 — -- 13 — -- -- <br /> 01/30/2003 -- -- 79 — — -- <br /> 04/30/2003 -- -- 290 — -- — <br /> 07/30/2003 <500 <100 65 <5 0 <5 0 <5 0 <br /> 10/29/2003 <100 <20 055 <1 0 <1 0 <1 0 <br /> 01/26/2004 <100 95 91 <10 <10 <10 <br /> 04/28/2004 <100 <20 <0 50 <1 0 <1 0 <1 0 <br /> 07/30/2004 <100 <20 <0 50 <0 50 <0 50 <0 50 <br /> 10/28/2004 — — -- — — -- Sampled Annually 3rd Quarter <br /> 01131/20051 Sampled Annually 3rd Quarter <br /> 04/29/20051 Sampled Annually 3rd Quarter <br /> MW-3 4/12/2000 -- 28 ND<10 ND<l0 ND<10 <br /> 7/22/2000 - ND<50 15 ND<5 0 ND<5 0 ND<5 0 <br /> 10/26/2000 - 11 67 ND<10 ND<10 ND<10 <br /> 1/17/2001 -- ND<10 77 ND<10 ND<l0 ND<10 <br /> 4/12/2001 — 11 99 ND<10 ND<l0 ND<l0 <br /> 7/30/2002 -- -- 1,280 — - -- <br /> 10/31/2002 -- 88 -- — — <br /> Report Date ,lune 21, 2005 Page 2 of 5 <br />