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`IFer►,iJtr. TABLE 1 SUMMARY OF LABORATORY ANALYTICAL RESULTS FOR GROUNDWATER (Results presented in micrograms per liter [ug/L]) WELL NO. SAMPLE DATE TPH-G TPH-D TPH-J TPH-O Benzene Toluene Ethylbenzene Xylenes MTBE MW -1 2/10/93 <100 <200 <200 <500 <0.5 <0.5 <0.5 <0.5 NA 5/29/96 <50 <50 <300 NA <0.5 <0.5 <0.5 <0.5 <0.5 9/5/96 NA NA <50 NA <0.5 <0.5 <0.5 <0.5 <0.5 12/31/96 NA NA <50 NA <0.5 <0.5 <0.5 <0.5 <5.0 4/3/97 NA NA <50 NA <0.5 <0.5 <0.5 <0.5 <5.0 3/23/00 NA NA <100 NA <0.5 <0.5 <0.5 <0.5 <0.5 MW -2 2/10/93 <100 <200 <200 <.500 <0.5 <5.0 <0.5 <5.0 NA 5/29/96 149 <50 <300 NA 0.76 <5.0 <5.0 <5.0 1.49 9/5/96 <50 NA <50 NA <0.5 <5.0 <5.0 <5.0 <5.0 12/31/96 NA NA 60 NA 14 <5.0 0.7 1.8 <5.0 4/3/97 NA NA <50 NA <0.5 <5.0 <5.0 <5.0 <5.0 3/23/00 NA NA <100 NA <0.5 <0.5 <0.5 <0.5 0.5 MW -3 2/10/93 <100 <200 <200 <500 <0.5 <0.5 <0.5 <0.5 NA 5/29/96 -50 <50 <300 NA <0.5 <0.5 <0.5 <0.5 <0.5 9/5/96 NA NA <50 NA <0.5 <0.5 <0.5 <0.5 <0.5 12/31/96 NA NA <50 NA 0.5 <0.5 <0.5 0.5 <5.0 4/3/97 NA NA <50 NA <0.5 <0.5 <0.5 <0.5 <5.0 3/23/00 NA NA <100 NA 1.1 1.0 <0.5 1.7 <0.5 Regulatory Guidelines (MCLS) NA 1u NA NA NA 1.0 150 700 1750 13t2I Notes: TPH = Total Petroleum Hydrocarbons (-G) as gasoline, (-D) as diesel fuel, (-J) as jet fuel, (-O) as oil MTBE = methyl tertiary butyl ether NA = not analyzed MCL = Maximum contaminant limit, per California Department of Health Services (1) = a regulatory health limit is not available for this constituent (2) = California Department of Health Services advisory action level.