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Groundwater Analytical As Oxygenate Compounds • <br /> Tosco (Circle K) Unit #1205 <br /> 16470 Cambridge Street <br /> Lathrop, California <br /> WeIIID Date Methanol Ethanol TBA MTBE DIPE ETRE TAME <br /> (Ppb) (Ppb) (Ppb) (Ppb) (Ppb) (PPb) (Ppb) <br /> MW-1 10/08/98 7,100 ND' 320 3,400 ND' NDi 22 <br /> MW-2 10/08/98 6,800 ND' 620 4,000 ND' NDi 76 <br /> MW-3 10/08/98 ND ND ND ND ND ND ND <br /> MW4 10/08/98 ND ND ND ND ND ND ND <br /> EXPLANATIONS. <br /> Groundwater laboratory results were compiled from reports prepared by Pacific Environmental Gioup, Inc <br /> TBA = Tertiary Butyl Alcohol <br /> MTBE = Methyl Tertiary Butyl Ether <br /> DIPE Di isopropyl Ether <br /> ETBE = Ethyl Tertiary Butyl Ether <br /> TAME = Tertiary Amyl Methyl Ether <br /> ppb = Parts per billion <br /> ND = Not Detected <br /> ' Detection limit raised Refer to analytical results <br /> ANALYTICAL METHOD, <br /> EPA Method 8260 for Oxygenate Compounds <br /> 1205 x151180183 1 As of 01/25/99 <br />