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Table 2
<br /> Fuel Oxygenates Analytical Data
<br /> ARCO Service Station No 2186
<br /> 3212 N California Street, Stockton, CA
<br /> Well Date Ethanol TBA MtBE DIPE EtBE TAME 1,2-DCA EDB Methanol
<br /> Number Sampled (pg/L) (pg/L) (ug/L) (pg/L) (pgfL) (pg/L) (agIL) (pg/L) (pg/L) Comments
<br /> MW-4 6/11/1999 - <200 346 <2 0 <2 0 <2 0 -- -- -- No FP,No S
<br /> 9/10/1999 - <1,000 1,060 <10 <10 <10 - - -- No FP,No S
<br /> 12/3/1999 -- <400 760 <4 0 <4 0 656 -- -- -- No FP,No S
<br /> 4/3/2000 -- <200 106 <2 0 <2 0 <2 0 -- - - No FP,No S
<br /> 6/22/2000 - <200 2070 <2 0 <2 0 157 - -- - No FP,No S
<br /> 9/27/2000 -- 499 6,590 <2 0 302 532 -- - - No FP,No S
<br /> 12/20/2000 <200 1,150[1][2] <2 0 <2 0 102 - - -- No FP,No S
<br /> 3/16/2001 -- <200 481 [2) <2 0 <2 0 378 - -- -- No FP,No S
<br /> 6/21/2001 -- <500* 590 <10* <10* <10* -- - No FP,No S
<br /> 9/13/2001 -- <5,000 7,600 <100 <100 <100 -- - No FP,No 5
<br /> 12111/2001 -- <1,000 5,600 <100 <100 <100 -- - No FP,No S
<br /> 3/14/2002 - <100* 4,900 <10* <10* 33 - - -- No FP, No S
<br /> 6/19/2002 -- <500 2,900 <50 <50 <50 <50 -- -- No FP,No S
<br /> 9/1212002 <40,000 <5,000 16,000 <500 <500 <500 <500 <500 -- No FP,No S
<br /> 12!312002 - <20,000 6,600 <500 <500 <500 <500 -- - No FP,No S
<br /> 03/11/2003 <50,000 <10,000 4,200 <250 <250 <250 <250 -- --
<br /> 06/09/2003 <10,000 <2,000 3,200 <100 <100 <100 <50 -- -
<br /> 09/16/2003 <50,000 <10,000 6,500 <500 <500 <500 <250 - -
<br /> 12/11/2003 <10,000 <2 000 6,500 J <100 <100 <100 110 - -
<br /> 03/10/2004 <20,000 <4,000 6,900 J <200 <200 <200 <100 -- --
<br /> 06/17/2004 <50,000 <10,000 10,000 <500 <500 <500 <250 -- 590
<br /> 09/23/2004 <5,000 1,600 2,500 <50 <50 <50 47 <25 <150
<br /> 12/21/2004 <25,000 <5,000 2,800 <250 <250 <250 <120 <120 <200
<br /> 03/30/2005 <100 24 27 <1 0 <1 0 <1 0 <0 50 <0 50 -
<br /> 06/13/2005 0,000 <200 280 <5 0 <5 0 <5 0 <50 <50 -
<br /> 09108/2005 1 <5,000 1 <11000 1 4,300 1 <25 <25 1 31 <25 <25 --
<br /> MW-5 9/13/2001 -- <100 <20 <2 0 <2 0 <20 - - -- No FP,No S
<br /> 12/11/2001 -- <20 <20 <2 0 <2 0 <20 - - -- No FP, No S
<br /> 3/14/2002 - <5 0 <0 50 <0 50 <0 50 <0 50 - -- -- No FP,No S
<br /> 6/19/2002 - <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 -- -- No FP,No S
<br /> 9/12/2002 <40 <5 <0 5 <0 5 <0 5 <05 <0 5 <05 -- No FP,No S
<br /> LEE12/3/2002 - <20 <0 5 <0 5 <0 5 <05 <05 -- - No FP,No S
<br /> 03/11/2003 <100 1 <20 J <0 50 <0 50 <0 50 <0 50 <0 50 -- -
<br /> Report Date October 17,2005 Page 4 of 10
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