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TABLE 2 <br /> ADDITIONAL GROUNDWATER DATA <br /> THRIFTY OIL STATION#172,STOCKTON,CA <br /> OXYGENATES ALCOHOLS <br /> Di-isoprop)l Ether Ethyl-Teri-Butyl Ether Tert-Amyl Methyl lather Tert-Butyl Alcohol Ethyl Alcohol Methyl Alcohol <br /> DATE (RIPE) (ETRE) (TAME) (TBA) (Ethanol) (Methanol) <br /> SAMPLED tuts-) {0VL) 00-) (mg( ) (m1&) <br /> MONITORING WELL k M0q] <br /> 08/19197 <20 <20 <20 <500 <0 5 <10 <br /> 11/26197 <20 <20 <20 <500 <0 5 <2 <br /> 02118!98 <20 <20 <20 1 100 <0 5 13 <br /> 05/27/98 <20 <20 <20 510 <0 5 <2 <br /> 08/26/98 <20 <20 <20 970 <0 5 15 <br /> 11/24/98 <20 <20 2 300 2 700 <0 5 <2 <br /> 02/18/99 <20 <20 <20 3 000 <0 5 <2 <br /> 05/20/99 <20 <20 <20 920 <0 5 <2 <br /> 08/18/99 <20 <20 <20 980 <0 5 5 8 <br /> 11/10199 <20 <20 <20 2 i 00 <0 5 7 9 <br /> 02/23/00 <25 <25 <25 <2 500 <2 5 <125 <br /> 05/10100 <0 5 <0 5 <0 5 <50 <0 05 <0 25 <br /> 08/18/00 <2 <2 <2 <50 <50 <50 <br /> 11109!00 - - - - <br /> 02115/O1 <0 5 <0 7 <0 5 33 <20 <20 <br /> 05/17/01 - - - <br /> 05/24101 <0 5 <0 7 <0 5 8}8 3 <20 <20 <br /> 08/16/01 <25 <35 <25 <500 <20 <20 <br /> 11/08/01 <5 0 <7 0 <5 0 1 210 <20 <20 <br /> 02/21/02 <50 <70 <50 <1000 QO <20 <br /> 05/22/02 <t25 <175 <125 <2 500 <20 <20 <br /> 08/14/02 <20 <12 <16 <1000 <20 <20 <br /> 11/20/02 <0 2 <0 12 <0 16 <10 <20 <20 <br /> 02/12103 <0 29 <0 17 <C28 <10 <20 <20 <br /> 05/21/03 <14 5 <8 5 <14 365 J <20 <20 <br /> 08/20/03 <14 5 <8 5 13 100 13 400 <20 <20 <br /> 11126103 <2 9 <1 7 <2 8 <100 <20 <20 <br /> 02/05/04 <29 <17 <28 <1 000 <20 <20 <br /> 05/05/04 <14 5 <8 5 323 5 250 <20 <20 <br /> 08/11104 <29 <17 <28 <1 000 <20 <20 <br /> 09/30/04 <29 <17 <28 <1 000 <20 <20 <br /> H110104 <72 5 <42 5 <70 <2 500 <20 1 <20 <br /> NOTF DIPE ETBE TAME TBA Ethanol Methanol analyzed by EPA Methods 8260 8260B <br /> Beginning 8118100 Ethanol and Methanol analyzed by D285 GC-FID <br /> 172 TA82 0X1' Page 5 0 5 12li N2004 <br />