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j V <br />{' TABLE 2 <br /> 1 HISTORICAL GROUND-WATER QUALITY DATABASE <br /> SAMPLE DATE SAMPLE TPH G TPH D $ENZENE TOLUENE ETHYLBENZENE. XYLENES i> <br /> POINT (PPB) iPPB) (PPB] (PP$1 (PP$} tRP6) <br /> _... <br /> 1 06-Nov-91 U-5 1400 <50 66, 6.1 54 38 <br /> 08-May-92 U-5 430 380 49 16 22 37 <br /> i 06-Aug-92 U-5 510(2), 1.20(2) .33 3.7 13 4.0 <br /> Ii 18-Nov-92 U-5 <50 50(2) <0.5 <0.5 <0.5 <0.5 <br /> 21-Jan-93 U-5 3500 2600(4)-- 190 350 47 500 <br /> i <br /> 23-May-91 U-6 240; 280(3) 17 6 3 22 <br /> 30-Aug-91' U-6 <50. <50 0.5 0.5 0.87 1.9 <br /> 06-Nov-91 U-6 280 <50 8.2 4.8 18 26 <br /> -08-May-92 U-6 <50 300(2). <0.5 <0.5 <0:5 <0.5 <br /> 06-Aug-92 U-6 190 <50 2.2 0.7 8.7 26 <br /> 18-Nov-92 U-6 230 230 6;5 <0:5 11 16 <br /> 21-Jan-93 U76 6100 2300(5) : 400 99., 460 590 ;. r <br /> 06-Aug-92 U-7 <50 <50 <0.5 <0.5 <0.5 <0.5 4 <br /> 18-Nov-92 U-7 <50 50(2)' <0.5' <0.5 <0.5 <0.5 <br /> r 21-Jen-93 U-7 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 06-Aug-92 U-8 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> 18-Nov-92 U-8 <50 60(2) ,<:0.5 <0.5 <0.5_ <0.5 <br /> 21-Jan=93. U-8 70 180(4)' <0.5 <0.5 4.4 11 <br /> j <br /> 06-Aug-92 U-9 <50 <50 <0.5 <0.5 <O.5 <0.5 <br /> 18-Nov-92 U-9 . - <50 390(2) "<0,5 <0.5 <0.5 <0.5 <br /> 21-Jen-93 U-9 <50 <.So <0.5 <0.5 <0.5 <0.5 <br /> 06-Aug-92 U-1.0 <50 C50 <0.5' <0.5" <OS <0.5 <br /> 184Nov-92 U-10 <50 70(2) <0.5 <0.5 <0.5 <0.5 <br /> 21-Jan-93 U-10 <50 <50 <0.5 <0.5 <0.5 <0.5 <br /> TPH-D. _ Total Petroleum Hydrocarbons calculated as Diesel.. <br /> TPH-G Total Petroleum Hydrocarbons calculated as Gasoline. <br /> PPB Parts Per Billion. <br /> Notes: 1: . All data shown as <x are reported as ND:(none detected). <br /> Z. Petroleum hydrocarbons detected as TPH-D appear to be heavier than Diesel. <br /> 3. Laboratoryreports atypical chromatograph pattern., <br /> 4. Petroleum hydrocarbons reported as TPH-D appear to be'lighter than Diesel. <br /> S. Petroleum hydrocarbons reported as TPH-D appaar to be due to a combination of <br /> heavier and lighter hydrocarbons. <br /> i � <br /> f , <br /> 784680-4 <br />