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TABLE 2 _' <br /> HISTORICAL GROUNDWATER-QUALITY DATABASE <br /> K <br /> SAMPLE SAMPLE TPH G TPH D BENZENE TOLUENE E'HYLBENZENE XYLENES., <br /> DATE: POINT: (PPBI (PPB) (PPBa IPPB) : (PP61 {PPB <br /> .-.. <br /> i. 24-Aug-93 U=8 <50 1504Wd. <6.5 <0 5- <0:5 <O.5 <br /> 06-Au9792 U-9 <50 <50 1<.0:5 <0.5 <0.5 G0.5 <br /> 18-Now92 �U=9 <50'.',..` 390(2) <0.5 <O 5 ° <0.5 <O.5 <br /> 21-Jan-93. `U-9 <50 -<So <0.5 <0.5- <0.5 <0.5 <br /> 26-May-93 U-9. <50 ' 90 <0.5. .-, "= ..<0:5 <"0.5 <br /> . R <0.5 <br /> 24-Aug-93 U-9 <50 <50 <0:5 ,<0.5 <0.5 <0.5 " <br /> 06-Aug-9-2 U-10 <50 _ <50 C0.5 <0.5' <0.5 <0.5 <br /> 18-Nov-92.' U-10 . <w 70(1) <0:5 ¢ ' ' <0115. <0.5 <0.5 <br /> 214an-93. U-10 `<50_ .. F50 <0.3' <05; <0.5 <0:5 <br /> 26 May-93" UAO <50"• = 95 <0:5 <0.5. <0.5 <0.5 <br /> (� 24-Aug-93 U""=10 <"50 _ = ,y<50V <0.5 <.0'.5.: . <0.5; <0.5' <br /> / TPH-D. _ Total Petroleum Hydrocarbons calculated a'sDiesel.a <br /> TPH-G2 Total Petroleum Hydrocarbons,calculated as.Gasoline <br /> PPB. = Parts Per Billion:" <br /> The concentrations reported as diesel for samples.-6,1.14,and U-$"are,due.to'the presence of a combination of diesel <br /> '`.and a discrete peak not indicative of diesel fuel x <br /> Notes: 1. All data:shown"as <x are reported-as ND..I:none detectedl: <br /> 2. Petroleum hydrocarbons detected as TPH b appear to be heavier than Diesel. ` <br /> 3. .• Laboratory reports 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 appear to be=due.to a-oombmat(on of,. <br /> heavier and lighter.hydrocarbons. ,r ' a <br /> y f <br /> 6. Wells U75,U-6, and U-9 were tested ri. (ay 26,.1.993'ibr EPA 8270: Ail 8270;". <br /> K <br /> target analytes were non-detect (ND),. > <br /> t• ..;` <br /> r., <br /> 784680-6 x : . ' <br />