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