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Project No 034-98081 <br /> TABLE II <br /> Concentrations of Petroleum Hydrocarbons and Volatile Organics <br /> Constituents in Groundwater <br />' H&H Engineering Property <br /> 212 Industrial Drive <br /> Stockton, California <br />' August 11-13, 1998 Sampling <br /> (Concentrations expressed in micrograms per liter, ug/L) <br /> Sample ID Location and Benzene Toluene Ethylbenzene Total TPH-G MTBE <br /> Depth(ft) Xylenes <br /> 234W B-2 @ 34' 10,000 <25 25 970 4,700 <5 0 <br />' 234W* B-2@ 34' 9200 17J 22J 880 NA NA <br /> 333W B-3 @ 33' 2,200 86 290 260 3,100 NA <br /> 434W B-4 @ 34' ND ND ND ND ND NA <br /> 534W B-5 @ 34' ND ND ND ND ND NA <br /> 634W B-6 @ 34' ND ND ND ND ND NA <br /> 734W B-7 @ 34' ND ND ND ND ND NA <br /> MCL 1 150 700 1,750 NA NA <br /> Reporting Limits 0 5 0 5 05 0 5 20 Varies <br /> NA — Not analyzed <br />' ND = None detected at the reporting limit noted <br /> P <br /> TPH-G = Total petroleum hydrocarbons as gasoline by EPA Method 8015M <br /> MCL = State of California Maximum Contaminant Level in drinking water <br /> MTBE = Methyl tertiary butyl ether <br /> <25 — None detected at increased detection limits due to concentrations noted <br /> 3 = Estimated value, below quantitation limit <br /> * Using analytical Method EPA 8260, other compounds not detected, see attached <br /> analytical report for list of analytes <br /> 1 <br /> 1 <br /> 1 <br /> i <br /> iKRAZAN & ASSOCIATES, INC <br /> Offices Serving the Western United States <br />' 3498081 SGS <br />