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PRELIMINARY DRAFT ANALYTICAL RESULTS <br /> a <br /> Table <br /> Analytical Results for Petroleum Hydrocarbons <br /> DISCO Site Additional Investigation <br /> Groundwater Samples <br /> (Units in ptWL) <br /> Sample ID CPT-1(74') CPT-1(90') CPT-2(64') CPT-2(94') CPT-3(91') CPT-3(91') CPT-4(75') CPT-4(97') CPT-5(761) .CPT-5(9T) EB-1 <br /> Duplicate <br /> Sampling Date 12/20/1999 12/20/1999 1 12/20/1999 1 12/20/1999 1 12/22/1999 1 12/22/1999 12/21/1999 12/21/1999 1 12/21/1999 1 12/21/1999 12/21/2000 <br /> Dilution 1:1 1:200 1 1:1 1:50 1:500 1:500 1:100 1:500 1:1 1:500 1 1:1 <br /> Benzene _3.6 25,000 O.S U 40 26,000 26,000 14,000 . 15,000 0.5 U 15,000 _ 0.50 <br /> Benz-_. . . _- -•Benz : Benz - .. _- Benz -- , <br /> Toluene 0.5 U 35,000 0.83* U 3,700 39,000 41,000 13,000 29,000 0.5 U 21,000 _1.80 <br /> _.ne . . Benz Benz Benz - - - - <br /> Ethylbenzene 0.5 _j U 1,700 0.63* U 1,400 2,200 2,000 y 1,000 2,100 .__ 0.5 U 1,700 0.77 <br /> Benz - - _ Benz Benz <br /> Xylenes(Total) 0.5 U 15,000 1.9* U _7,100F <br /> 19,000 18,000 7,200 16,000 0.5 U 11,000 4.10 <br /> Benz- - _ 11e 380** 150,000 S4* U 37,000200,000 190,000 66,000 160,000 50 U 110,000 63.00 <br /> Dilution 1:1 1:20 la 1:4 1:200 1:200 1:200 1 0200 1:1 1:4 11 <br /> 1,2-Dibromoethane(EDB) 0.5 U 1400 0.5 U 2.0 U 420 460 110 340 0.5 U 270 0.5 duu <br /> nz -- nz41Ml,2-Dichloroethane 1,2-DCA) 23 1000 0.5 U2.0 U 590 640 2000 670 19 450 0.5 �, <br /> Dilution 1:1 1:100 1:1 1:10 1:200 1:200 1:200 1:200 1:1 1:100 1:1 <br /> MTBE _ 5 U 500 U 5 U_ 50 U 1000 U 1000 U_ _ 1000 - U 1000 U _5 _! U _ 500 U 5 _ U <br /> tert-Butanol _ S _ U 500 U_ 5 _I U _ 50 U _ 1000 _+U 1000 U_ 1000 U 1000 it U_ 5 I U 500 f U 5 �U <br /> Di-isopropyl ether t0_ U 1000 U 10 U 100 U 2000 2000 U 2000 TU 2000 U _ 10 U 1000 ;U_ 10 U <br /> . T . - - _ _ iii . 00 UBenz . . - - - . <br /> Ethyl_n-bbl ether 5 U _500 U 5 U 50 U 1000 U 1000 U 1000 U 1000 U_ 5 U 500 i U 5 U <br /> Benz - - � _ .. _ - <br /> tert-Am I Meth l ether 5 U 500 U S U 50 U 1000 i U 1000 U 1000 U 1000 U 5 U 500 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 /> Data.xls 02/03/2000 <br />