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Table 2 - Groundwater Chemical Analytical Data <br /> Tosca(Former BP) Service Station No 11192 <br /> 1403 Country Club Boulevard <br /> Stockton,California <br /> Date Sample Ethanol TBA MTBE DIPE ETBE TAME <br /> Sampled Numbers (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> Sampled from MW-3 <br /> 12/19/00 <br /> MW-3 PRE ND' 4 000 210,000 NDI ND' 100 <br /> MW-3 POST ND' 39 000 160 000 ND' NDI 650 <br /> TRK 12-19-00 ND' 32,000 52 000 ND' ND' 350 <br /> 12/26/00 <br /> MW-3 PRE ND' 29 000 110 000 ND' ND' 950 <br /> MW-3 POST ND' 20 000 89 000 ND' ND' 580 <br /> TRK12-26-00 ND' 21,000 56,000 ND' ND' 350 <br /> 112101 <br /> MW-3 PRE ND 390 100,000 ND ND 98 <br /> MW 3 POST ND' 23,000 95 000 ND' ND' 660 <br /> TRKOI-02-01 ND 1,400 60,000 ND ND 380 <br /> EXPLANATIONS ANALYTICAL METHODS. <br /> EPA Method 8260 for Oxygenate Compounds <br /> TBA=Tertiary butyl alcohol <br /> MTBE =Methyl tertiary butyl ether ANALYTICAL LABORATORY• <br /> DIPE=Di-isopropyl ether Sequoia Analytical (FLAP#1271) <br /> ETBE=Ethyl tertiary butyl ether <br /> TAME=Tertiary amyl methyl ether '=Elevated detection limit Refer to analytical report <br /> ppb=Parts per billion 2=This sample was originally analyzed within holding time Re-analysis for confirmation <br /> ND = Not Detected or dilution was performed past the holding time <br /> 1 <br /> 140245 04 <br />