ARCHIVED REPORTS_XR0008044 CASE 1

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Table 2 Fuel Oxygenates Analytical Data Former BP Service Station No 11194 2375 Tracy Blvd, Tracy, CA Well Date Ethanol TBA MtBE DIPE EtBE TAME Number Sampled (Ng/L) (Ng/L) (pg/L) (pg/L) (ug1L) (dug/L) Comments AMW-1 01/30/2003 - -- <0 50 – – -- 04/30/2003 -- -.- -- – – 07/30/2003 <100 <20 <0 50 <1 0 <1 0 <1 0 10/29/2003 <100 <20 <0 50 <1 0 <1 0 <1 0 01/26/2004 <100 <20 <0 50 <1 0 <1 0 <1 0 --�0-4127/20041 <100 <20 <0 50 <1 0 <1 0 <1 0 AMW-2 01/30/2003 -- -- <0 50 – -- -- 04/30/2003 -- -- – -- – – 07/30/2003 <100 <20 <0 50 <1 0 <1 0 <1 0 10/29/2003 <100 <20 <0 50 <1 0 <1 0 <1 0 01/26/2004 <100 <20 <0 50 <1 0 <1 0 <1 0 M27/2004 <100 <20 <0 50 <1 0 <1 0 <1 0 AMW-3 01/30/2003 -- -- 41 -- – – 04/30/2003 - -- 25 -- -- - 07/30/2003 -- – – -- -- Well inaccessible, Not Sampled 10/2912003 <100 <20 76 <1 0 <1 0 <1 0 01/26/2004 <100 <20 60 <1 0 <1 0 <1 0 04/27/2004 <100 <20 13 <10 <10 <10 AMW-4 01/30/2003 -- -- <0 50 – – -- 04/30/2003 -- -- -- -- – – 07130/2003 <100 <20 <0 50 <1 0 <1 0 <1 0 10/29/2003 <100 <20 <0 50 <1 0 <1 0 <1 0 01/26/2004 <100 <20 <0 50 <1 0 <1 0 <1 0 04/27/2004 <100 <20 <0 SQ <1 Q <1 0 <1 0 AMW-5 01/30/2003 -- -- 24 -- – – 04/30/2003 -- -- 76 – -- -- 07/30/2003 <500 <100 44 <5 0 <5 0 <5 0 10/29/2003 <100 120 47 <1 0 <1 0 <1 0 01/26/2004 <100 28 68 <1 0 <1 0 <1 0 04/27/2004 <100 <20 11 <10 <10 <10 AMW-6 01/30/2003 -- -- 41 – – – 04/30/2003 -- -- 23 -- -- -- 07/30/2003 <500 <100 16 <5 0 <5 0 <5 0 10/29/2003 <100 <20 27 <1 0 <1 0 <1 0 01/26/2004 <100 <20 16 <10 <10 <10 Q412712004 <100 1 <20 1 093 <1 0 <1 Q <1 Q MW-1 01/30/2003 -- -- <0 50 -- – – 04/30/2003 -- -- – – -- 0713012003 <100 <20 <0 50 <1 0 <1 0 <1 0 10/29/2003 <100 <20 <0 50 <1 0 <1 0 <1 0 01/26/2004 <100 <20 <0 50 <1 0 <1 0 <1 0 04/27/2004 <100 <20 �<Q 50 <1 0 <1 0 <1 0 MW-2 4/12/2000 -- -- 9,800 ND<250 N0<250 ND<250 7/22/2000 -- 25,000 120,000 ND<25 ND<25 ND<25 10/26/2000 -- 4,300 3,300 ND<100 ND<100 ND<100 1/17/2001 17,000 29,000 ND<10 ND<10 ND<10 Report Date July 13, 2004 Page 7 of 4