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Table 4-2 <br /> Analytical Results for Petroleum Hydrocarbons <br /> DISCO Site Additional Investigation <br /> Groundwater Samples <br /> (Units inµg(L) <br /> Sample ID CPT-12(881) CPT-12(1141) CPT-13(911) CPT-14(941) CPT-14(1101) CPT-15(106') EB-6 <br /> Sampling Date 03/17/2000 03/17/2000 03/17/2000 03/16/2000 03/16/2000 0311712000 03/17/2000 <br /> Dilution 1:1 <br /> Benzene _ _ 0.5 U ---.0.5 U -.—. 0.5 U 0.5 U 0.5 U 0.5 U NT <br /> Toluene _ — _ 0.5 U —_ 0.5 — U <br /> F. U 9.9 0.5 U 0.5 U NT <br /> E0llbenzene --� — _ 0.5 U 0.5 U 0.5 U 0.5 U 0.5 U 0.5 U NT <br /> X lenes(Total) — - — 0.5 U 0.5 U 0.5 U 0.5 U 0.5 U 0.5 U NT <br /> PH as Gasoline 50 U 50 U 50 U 610 50 U 50 U NT <br /> Dilution <br /> 1,2-Dibromoethane(EDB) U U 0.5 U 0.5 U 0.5 U <br /> 1,2-Dichloroethane 1,2-DCA 200 1.5 U 50 0.5 U 0.5 U 64 <br /> Dilution 1:1 1:1 1:1 1:1 1:1 1:1 <br /> MTBE - - 5 U 5 U 5 U 5 U 5 U 5 U <br /> rt-Butanol — 28 5 U 16 5 U 5 U 12 <br /> i-iso ro !ether —_ 10 U 10 U 10 U 10 U l0 U 10 U <br /> [Ethyl-cert-butyl ether 5 U 5 U 5 U 5 U 5 U 5 U <br /> ent-Am !Meth I ether 5 U 5 U 5 U 5 U 5 U 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 /> g-hydrocarbon reported in the gasoline range does not match laboratory's gasoline standard <br /> Data.xls Page 4 of 4 06/26/2000 <br />