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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 Ethanal TBA MtBE DIPE EtBE TAME 1,2-DCA EDB Methanol
<br /> Number Sampled (pg1L) (pg1L) (pg1L) (pg1L) (pg1L) (pg1L) (pg1L) WL) (pg/L) Comments
<br /> MW-1 11/20/1997 -- <100 78 <2 0 <2 0 <20 - - - No FP,No S
<br /> 2/17/1998 NA NA NA NA NA - - -- No FP,No S
<br /> 6/24/1998 - <200 39 <20 <2 0 <20 -- - -- No FP,No S
<br /> 9/21/1998 -- <2000 138 <20 <2 0 <20 - - -- No FP,No S
<br /> 12/14/1998 -- <200 228 <20 <2 0 <2 0 - -- -- No FP,No S
<br /> 12/14/1998 - <200 314 <20 <2 0 <2 0 -- -- -- [D),No FP,No S
<br /> 3/31/1999 -- <200 392 <20 <2 0 <2 0 - - - No FP,No S
<br /> 6/11/1999 -- <200 628 <2 0 <2 0 <2 0 - - -- No FP,No S
<br /> 9/10/1999 - <400 800 <4 0 <4 0 812 -- -- - No FP,No S
<br /> 12/3/1999 -- <400 984 <4 0,�_ <4 0 892 - -- - -No FP,No S
<br /> 4/312000 -- <200 281 <2 0 <20 246 -- - - No FP,No S
<br /> 6/22/2000 -- <200 114 <20 , <20 <2 0 -- -- - No FP,No S
<br /> 9/27/2000 -- 355 4,500 <2 0 <2 0 338 -- - - No FP,No S
<br /> 12/20/2000 - <200 1,870[1] <2 0 <2 0 175 -- - -- No FP,No S
<br /> 3/16/2001 -- <200 2,190[1] <2 0 <2 0 246 - -- No FP,No S
<br /> 6/21/2001 -- <14,000 28,000 <290* <290* <290* -- - - No FP,No S
<br /> 9/13/2001 -- <2400 4,500 <50 <50 <50 -- - - No FP,No S
<br /> 12/11/2001 -- 1,100 8,800 <2 0 <2 0 72 - -- - No FP,No S
<br /> 3/14/2002 -- <2,500* 4,700 <250* <250* <250* - -- - No FP,No S
<br /> 6119/2002 -- <5,000 17,000 <500 <500 <500 <500 - -- No FP,No S
<br /> 9/12/2002 <4,000 <500 31100 <50 <50 <50 85 <50 - No FP,No S
<br /> 12/3/2002 - <2,000 3,100 <50 <50 <50 80 -- - No FP,No S
<br /> 03/11/2003 <10,000 <2,000 3,200 <50 <50 <50 <50 - --
<br /> 06/09/2003 <25,000 <5,000 10,000 <250 <250 <250 <120 09117/2003 <10,000 <2,000 3,600 <100 <100 <100 <50 -- -
<br /> 12/11/2003 <5,000 <1,000 3,200 J <50 <50 <50 <25 - --
<br /> 03/10/2004 <25,000 <5,000 6,400J <250 <250 <250 <120 - --
<br /> 06/17/2004 <10,000 <2,000 3,100 <100 <100 <100 <50 - <400
<br /> 09/23/2004 <500 <100 80 <5 0 <5 0 <5 0 <2 5 <2 5 <100
<br /> 12121/2004 <2,500 <500 340 <25 <25 <25 <12 <12 <100
<br /> 03/30/2005 <2,000 <400 880 <20 <20 i <20 <10 <10 --
<br /> 06/13/2005 <10,000 <2,000 3,000 <50 <50 <50 <50 <50 --
<br /> 09/08/2005 <10,000 <2,000 450 <50 <50 <50 <50 <50 --
<br /> Report Date October 17,2005 Page 1 of 10
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