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Table 2 <br /> Fuel Oxygenates Analytical Data <br /> BP Oil No 11194 <br /> . 2375 Tracy Boulevard,Tracy,California <br /> Well Date of TBA MTBE DIPE ETBE TAME Ethanol <br /> Number Sampling (pg/L) (/rg/L) UGfL) (Pg/L) (kg/L) (Ng/L) <br /> AM -5 4112!2000 -- - <br /> 7/22/2000 — — — — - <br /> 10/26/2000 — <br /> 1/17/2001 — <br /> 4/12/2001 --- --- — — — <br /> 5/23/2001 — 612 ---7/31/2001 — 2470 — - <br /> 10/30/2001 -- 2180 — <br /> 1/29/2002 — 109 — — '-' <br /> 4/30/2002 — 1640 — — — - <br /> 7/30/2002 — 781 — — — <br /> 10/31/2002 — 19 — — — <br /> 1/30/2003 — 24 — — — - <br /> 4/30/2003 — 76 — — — <br /> 7/30/2003 <100 44 <50 <5 0 <5 0 <500 <br /> 10/29/2003 120 47 <1 0 <1 0 <1 0 <100 <br /> AMW-6 1212000 — --- — — — - <br /> 7/22/2000 — — -- <br /> 10/26/2000 — - — <br /> 1/17/2001 — "' — — — -- <br /> 4/12/2001 — --- — — — <br /> 5/23/2001 — 840 -- — — -- <br /> 7/31/2001 — 113 — — — <br /> 10/30/2001 — ND<2 5 — — — <br /> 1/29/2002 — 431 — — — - <br /> 4/30/2002 — 763 -- — — - <br /> 7/30/2002 - 465 - — — _— <br /> 10/30/31/2/2 002 19 <br /> 1/30/2003 --- 41 — <br /> 4/30/2003 -- 23 — — '-'" - <br /> 7/30/2003 <100 16 <50 <50 <5 0 <500 <br /> 10/29/2003 <20 27 <1 0 <1 0 <1 0 <100 <br /> Notes <br /> N = Not analyzed/applicable/measurable MTBE = Methyl tert butyl ether <br /> DIPE = Di-Isopropyl Ether TAME = tert-Amyl Methyl Ether <br /> DO = Dissolved oxygen TBA = tert-Butyl Alcohol or 2-Methyl-2-propanol <br /> ETBE = Ethyl tert-Butyl Ether ug/L = Micrograms per liter <br /> Data Qualifier Definitions <br /> U The analyte was analyzed for,but was not detected above the sample reporting limit <br /> J The analyte was positively identified,the associated numerical value is the approximate concentration of the <br /> analyte in the sample <br /> N The analysis indicates the presence of an analyte for which there is presumptive evidence to make a <br /> "tentative identification" <br /> NJ The analysis indicates the presence of an analyte that has been"tentatively identified"and the associated <br /> numerical value represents its approximate concentration <br /> UJ The analyte was not detected above the reported sample reporting limit However,the reported reporting limit�s <br /> approximate and may or may not represent the actual limit of quantitation necessary to accurately and precisely <br /> measure the analyte in the sample <br /> R The sample results are rejected due to identification or other analytical issues <br /> ND Not detected above reported detection limit <br /> k 1W processlJ5 BP ARC01111941Quarterlyl4 QTR 03/11194 GW MR 4003 Page 4 of 4 <br />