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Table 4-2 <br /> Analytical Results for Petroleum Hydrocarbons <br /> DISCO Site Additional Investigation <br /> Groundwater Samples <br /> (Units in PVL) <br /> Sample ID CPT-6(861) CPT-6(140') CPT-7(761) CPT-7(1261) CPT-8(721) CPT-8(1301) EB-2 I CPT-9(801) CPT-9(143') <br /> Sampling Date 0111812000 01/18/2000 1 01/18/2000 OL/18/2000 01/18/2000 01/18/2000 01/18/2000 03/13/2000 103/13/2000 <br /> Dilution 1:5 1:1 1 1:50 1:1 1:50 1:1 1:1 1 1:1 1:1 <br /> Benzene 380 0.5 U 5,500 6.0 4,500 0.87 0.5 U 0.5 U 0.5 U <br /> Toluene 3.1 0.5 U 1,900 3.1 590 0.50 U 0.5 U 0-5 U 0.5 U <br /> Etylbenaene 74 0.5 U 600 0.51 670 0.50 U 0.5 U 0.5 U 0.5 U <br /> X lenes(Tota]) 120 0.5 U 1,400 1.5 940 0.50 U 0.5 U 0.5 U 0.5 U <br /> TPH as Gasoline i00 50 U 20 000 77 1 17,000 52 50 U 50 U 50 U <br /> Dilution 1:5 1:1 1:50 1:1 1.20 1:1 1:20 1:1 <br /> 1,2-Dibromoethane(EDB) 2.5 U _ 0.5 _ U 25 U 0.5 U 10 U 0.5 U NT 0.5 U 0.5 U <br /> 1,2-Dichloroethane(1,2-DCA 430 0.83 1 3.5 1,300 3.6 NT 0.5 U 0.5 U <br /> Dilution 1:5 1:200 1:50 1:1 1:20 1.1 1:1 1:1 <br /> MTBE _ -- 25 U 5 U 250 U 5 U 100 U 5 U NT 5 U 5 U <br /> tert-Butanol 25 U 5 U 250 U 5 U 100 U 5 U NT 5 U 5 U <br /> Di_isopropyI ether - 50 U 10 U 500 U to U 200 __U10 _ U_ NT 10 U 10 U <br /> --- - --------- -- <br /> Eth yl-ten-butyl ether 25 U 5 U 250 U 5 U 100 U 5 U NT 5 U 5 U <br /> tmt-Am 1 Methyl ether 25 U 5 U 250 U 5 U 100 U 5 U NT 5 _.ILL 5 U <br /> Notes: <br /> U -Compound analyzed for but not detected. The reporting limit is presented to the left of the U. <br /> Bold values are detections above the analytical reporting limit. <br /> •Results treated as non-detect due to detections in associated equipment blank <br /> '*Hydrocarbon reported in gasoline range does not match laboratory gasoline standard <br /> Data.xls Page 2 of 4 06/26/2000 <br />