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CAMBRIA
<br /> Table 2. Ground Water Analytical Data-Oxygenate Compounds- Shell-branded Service Station Incident#98995874, 341 E Main Street, Ripon,
<br /> California
<br /> MTBE by MTBE by
<br /> Sample Date 1,2-DCA EDB EPA 8020 EPA 8260 Ethanol t-Butanol DIPE ETRE TAME Methanol TBA
<br /> ID Sampled 4 - -- (Concentrations in ppb)
<br /> MW-1 04/28198 --- --- 92,000 150,000 <500 <100 <2 0 <2 0 44 20,000 --
<br /> 07128/98 <5 0 <5 0 5,200 160,000 <625,000 <125,000 <2,500 [2,500 <2,500 32,000 ---
<br /> 10/07l98 <25 <25 130,000 130,000 <100,000 <20,000 <400 <400 <400 30,000 ---
<br /> 11/10198 --- --- 210 --- --- - - ---
<br /> 11/18/98 --- --- 3,300 --- --- --- --- _-- _-- _-- ---
<br /> 11/24/98 --- --- 130,000 130,000 --- --- --- --- --- ---
<br /> 12101/98 --- --- 138,000 155,000 --- --- --- --- --- --- ---
<br /> 12/08/98 --- --- 130,000 130,000 --- --- --- - --- ---
<br /> 12117198 --- --- 190,000 160,000 --- --- --- --- --- --- ---
<br /> 100,000 69,000 -- ---
<br /> 1212 --- --- ---
<br /> --- --- ---
<br /> 12/29/98 --- --- 139,000 127,000 --- --- --- --- --- --- ---
<br /> 01/06/99 --- --- 145 --- -- --- --- ---
<br /> --- 88,100 86,700 --- --- --- --- - - ---
<br /> 01/14199 --- ---
<br /> 01/19/99 <50 0 <50 0 152,000 156,000 <500,000 - <5,000 <5,000 <5,000 95 <100,000
<br /> 01128/99 <25,000 --- 133,000 149,000 --- --- --- --- --- --- ---
<br /> 02102/99 --- --- 85,000 92,000 - - --- --- --- --- --- ---
<br /> 02/11/99 --- --- 180,000 --- --- --- --- --- --- --- ---
<br /> 02118/99 --- 140,000 110,000 --- - --- --- --- 50 ---
<br /> 02/24/99 --- --- 150,000 160,000 --- --- --- --- --- --- ---
<br /> 03/02/99 --- --- 500,000 145,000 --- --- ---
<br /> 03111/99
<br /> 03111199 -t- --- 112,000 151,000 --- --- --- --- - --- ---
<br /> 03/19/99 --- 132,000 114,000 --- --- --- --- --- --- ---
<br /> 03/22/99 --- --- 113,000 81,800 --- --- --- --- --- --- ---
<br /> 04108/" --- --- 9,780 13,000 --- --- --- --- •-- --- ---
<br /> 04114/99 --- --- 97,200 102,000 •-- --- --- --- ... -...
<br /> 04/22/99 <0 5o <500 34,100 35,900 <100,000 4,000 <1,000 <1,000 29,000 <20,000
<br /> 04/29199 - 19,000 24,100 ... ... --- --- --- --- ---
<br /> 05l06199 .•. .-- 64,500 1.04,000
<br /> 05/13199 --- --- <5.00 ... _-- --- - --- --- --- ---
<br /> 05/18199 --- ... 70,000 94,N0 ... ... --- ---
<br /> 05/25199 r ... ... _ _ 111.,000 138,400
<br /> g 1np34S gmta4Se xSs f 3
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