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0 . _ <br /> Cumulative Table of Well Data and Analytical Results = <br /> ADDITIONAL ANALYSES TABLE 2 <br /> Analytical values are in parts per million(ppm) <br /> DATE Sample I D MTBE TAME TPH- <br /> Gasoline <br /> 07/30/99 W-4 SPH EPA 8260 <300 - -- <br /> 06/01/99 MW-4 6/99 ASTM D4815 <1000 <1000 -- <br /> 07/30/99 MW-4 Water EPA 8260 11,200` -- 170 <br /> 07/30/99 MW-3 Water EPA 8260 2740* - so <br /> 07/30/99 87 octane** EPA 8260 86 000 - <br /> 07/30/99 87 octane** ASTM D4815 92,000 02 <br /> 07/30/99 89 octane** EPA 8260 2420 — - <br /> 07130l99 89 octane** ASTM D4815 2200 <0 1 <br /> 07/30/99 92 octane** EPA 8260 132,000 — -- <br /> 07/30/99 92 octane** ASTM D4815 110 000 094 -- <br /> *Result reported in parts per billion(ppb) <br /> **Sample taken from onsite product pump#12 <br /> Note Blaine Tech Services,Inc began routine monitoring of the groundwater wells at this site on May 24, 1996 <br /> Wellhead survey performed by Ron Archer Civil Engineer Inc <br /> j ABBREVIATIONS. <br /> j TPH=Total Petroleum Hydrocarbons Pb=Lead <br /> j MTBE=Methyl t-butyl ether Ni=Nickel <br /> TOG=Total Oil&Grease Zn=Zinc <br /> 2,4-Dim=2,4-Dimethylphenol Meth=Methanol <br /> 2-MnPht=2-Methylphenol Elh=Ethanol <br /> 4-MnPht=4-Methylphenol t-But=t-Butanol <br /> Nap=Napthalene DIPE=Di-Isopropyl Ether <br /> Cd=Cadmium ETBE=Ethyl t-Butyl Ether <br /> Cr=Chromium TAME=t-Amyl Methyl Ether <br /> Blaine Tech Services Inc 991123 A-3 4th-Q 1999 Monitoring at Chevron 9 8264 3775 Tracy Blvd,Tracy CA 5 <br />