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<br /> Table 1. Groundwater Analytical Data -Oxygenate Compounds- Shell-branded Service Station Incident#98995874, 341 E. Main Street, Ripon, California
<br /> MTBE b Y
<br /> Y MT13E b
<br /> Sample Date 1,2-DCA EDB EPA 8020 EPA.8260 Ethanol t-Butanol DiPE ETBE TAME Methanol TBA
<br /> ID Sampled (Concentrations in ppb)
<br /> MW-1 04/28/98 --- --- 92,000 150,000 <500 <100 <2.0 <2.0 44 20,000 ---
<br /> 07/28/98 <5.0 <5.0 5,200 160,000 <625,000 <125,000 <2,500 <2,500 <2,500 32,000
<br /> 10/07/98 <25 <25 130,000 130,000 <100,000 <20,000 <400 <400 <--- 3 --- -Y-
<br /> 11/10/98 --- --- 210 -- --- --- --- --- --- ---
<br /> --- 3,300 --
<br /> 11/18/98 - _
<br /> 11/24/98 --- --- 130,000 13(},000 -- --- -"- -- --- --- ---
<br /> 12/01/98 ---
<br /> --- 138,000 155,000 -- --- "- -
<br /> I2/0819$ ---
<br /> 130,000 130,000 --- --- ---
<br /> 190,000 160,000 --- --`
<br /> 12/17/98 ___ --- ---
<br />� 12123/98 ---
<br /> -__ 100,000 69,000 ---
<br /> 12/29/98 ---
<br /> -
<br /> 139,000 127,000 - - --_ -
<br /> 01/06/99 -- --- 145 --- --- --- --- --- --- --- ---
<br /> 01/14/99 --- --- 8$,100 86,700 --- --- ---
<br /> < 0.0 <50.0 152,000 156,000 <500,000 --- <5,000 <5,000 <5,-- -- <100,000-
<br /> 01/19/99 5 ___ ___ --_ i
<br /> ___ 133,000 149,000 --- --- ---
<br /> 01/28/99 <25,(}00 ___ ___ ___
<br /> 02/02/99 --- --- 85,000 92,000 --- --- --- --- ___
<br /> 02111/99 --- --- 180,000 --- --- -_-_-- ---
<br /> --- 140,000 110,000 --- --- --- 50 ---
<br /> 02/18/99
<br /> I 02/24/99 ---
<br /> --- 150,000 160,000 --- --- ---
<br /> 03/02/99 --- --- 500,000 145,000 - --- ---
<br /> 03/11/99 --- ___
<br /> 112,000 151,000 ---
<br /> _
<br /> 03/19/99 ---
<br /> --- 132,000 114,000 ---
<br /> 113,000 81,800 --- -"" ---
<br /> 03/22/99 ___ --_
<br /> 04/0$199 ---
<br /> ___ 9,780 13,000 --- --- ---
<br /> 04/14/99 --- --- 97,200 102,000 --- --- _-- --- --- �-- ---
<br /> 04/22/99 <0.50 <500 30,100 3.5,900 <100,000 ==_ <1,000 <1,000 <1 -- 29--- <2--000
<br /> 04129199 --- 19,000 24,100
<br /> 05/06l99
<br /> --- 64,500 104,000 --- --- `-
<br /> 05/13/99 --- --- <5.00 --- --- --- --- --- --- --- ---
<br /> 05/18/99 ---
<br /> ___ 70,000 94,000 -- --- ---
<br /> 05/25/99 ---
<br /> --- 111,000 138,000 --- --- "--
<br /> SAl�
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