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Table 3-2. Summary of Analytical Results for Monitoring Wells at Former Three 5,000-Gallon and <br /> Two 20,000-Gallon USTs Location -TPH, BTEX, and MTBE in Groundwater <br /> EPA SW8015M (gg/L) EPA SW8260 (gg/L) <br /> TPHG TPHD TPHJ TPHO <br /> Sample ID Date Matrix Depth C7-C12 C12-C28 (Jet A) C28-40 Benzene Toluene Ethylbenzene Xylenes MTBE <br /> Applicable Comparison Criteria: 5a 100 a NA NA 1.01 150, 300' 1,750, 13' <br /> MW-1 2/10/1993 Water Unk <100 <200 <200 <500 <0.5 <0.5 <0.5 <0.5 NA <br /> 5/29/1996 Water Unk <50 <50 <300 NA <0.5 <0.5 <0.5 <0.5 <0.5 <br /> 9/5/1996 Water Unk NA NA <50 NA <0.5 <0.5 <0.5 <0.5 <0.5 <br /> 12/31/1996 Water Unk NA NA <50 NA <0.5 <0.5 <0.5 <0.5 <5.0 <br /> 4/3/1997 Water Unk NA NA <50 NA <0.5 <0.5 <0.5 <0.5 <5.0 <br /> 3/23/2000 Water Unk NA NA <100 NA 1.1 1.0 <0.5 1.7 <0.5 <br /> 3/8/2004 Water Unk <50 <50 <500 NA <0.5 <0.5 <0.5 <0.5 <1.0 <br /> MW-2 2/10/1993 Water Unk <100 <200 <200 <500 <0.5 <5.0 <0.5 <5.0 NA <br /> 5/29/1996 Water Unk 149 <50 <300 NA 0.76 <5.0 <5.0 <5.0 1.49 <br /> 9/5/1996 Water Unk <50 NA <50 NA <0.5 <5.0 <5.0 <5.0 <5.0 <br /> 12/31/1996 Water Unk NA NA 60 NA 14 <5.0 0.7 1.8 <5.0 <br /> 4/3/1997 Water Unk NA NA <50 NA <0.5 <5.0 <5.0 <5.0 <5.0 <br /> 3/23/2000 Water Unk NA NA <100 NA <0.5 <0.5 <0.5 <0.5 <0.5 <br /> 3/8/2004 Water Unk 110 <50 <500 NA <0.5 <0.5 <0.5 <1.0 <1.0 <br /> MW-3 2/10/1993 Water Unk <100 <200 <200 <500 <0.5 <0.5 <0.5 <0.5 NA <br /> 5/29/1996 Water Unk <50 <50 <300 NA <0.5 <0.5 <0.5 <0.5 <0.5 <br /> 9/5/1996 Water Unk NA NA <50 NA <0.5 <0.5 <0.5 <0.5 <0.5 <br /> 12/31/1996 Water Unk NA NA <50 NA 0.5 <0.5 <0.5 0.5 <5.0 <br /> 4/3/1997 Water Unk NA NA <50 NA <0.5 <0.5 <0.5 <0.5 <5.0 <br /> 3/23/2000 Water Unk NA NA <100 NA <0.5 <0.5 <0.5 <1.0 <0.5 <br /> 3/8/2004 Water Unk <50 <50 <500 NA <0.5 <0.5 <0.5 <1.0 <1.0 <br /> Value is the Taste and Odor Threshold(RWQCB,2003). <br /> b Value is the Primary MCL(RWQCB,2003). <br /> BTEX = benzene,toluene,ethylbenzene,and xylenes TPHD = total petroleum hydrocarbons as diesel <br /> EPA = United States Environmental Protection Agency TPHG = total petroleum hydrocarbons as gasoline <br /> MCL = maximum contaminant level TPHJ = total petroleum hydrocarbons as jet fuel <br /> MTBE = methyl tertiary butyl ether TPHO = total petroleum hydrocarbons as oil <br /> NA = not analyzed/not applicable UNK = unknown <br /> gg/L = micrograms per liter <br /> Note: bolded values exceed applicable comparison criteria <br /> Source:Versar Inc.,2004. <br />