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i • >a 6J <br /> Q <br /> D � <br /> CA4RIA <br /> Table 1. Ground Water Analytical Data- Shell-branded Service Station -Incident#98995874, 341 E Main Street, Ripon, California <br /> Depth to GW MTBE MTBE Dissolved Gallons <br /> Water Elevation" TPHg Benzene Toluene Ethylbenzent Xylenes EPA 8020 EPA 8260 Methanol Oxygen Removed <br /> Date (feet) (feet) 4 (Concentrations in b) - 0 (m ) ( al) <br /> EW-2 (TOC=64 10) <br /> 03/11/99 2642 3768 <50 0 <0 500 <0 500 <0 500 <0 500 <2 00 291 --- 2 6 --- <br /> 04/22/99 27 35 3675 <50 0 <0 500 <0 500 <0 500 <0 500 <5 00 0 537 <1,000 3 2 --- <br /> 07/28/99 3040 3370 108 979 15 1 509 119 315 306 1,020 2 1 --- <br /> 10/27/99 2968 34.42 <50 0 <0.518 <0.500 <0 500 <0 500 C 1,6200 1,300 -- <br /> Abbreviations Notes <br /> TOC=Top of casing elevation,in feet above mean sea level a=Wells surveyed to TOC on March 25 1999 by Virgil Chavez Surveying of Vallejo,CA <br /> GW=Ground water b=Lab results pending <br /> MTBE=Methyl tert-butyl ether by EPA Method 8020 or 8260 c=MTBE by EPA 8020 not taken for this event <br /> 11'lig d=Cninple was tinaly7rd tinct EPA recommended hkIlduig time <br /> ingtL=Milligraniq per litu <n=Below detection]unit of n ppb <br /> ppb=Parts per billion ---=Not analyzed <br /> Benzene,toluene ethylbenzene,and total xylenes by EPA Method 8020 <br /> Methanol by modified EPA Method 8015 <br /> g kip341\gmktmtabio xis 5 of 5 <br />