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1l_1_ Ilu JLATl Gu , 'J1 1L ; 16 Y UtD/ 1 ( <br /> Po;MA1 REPORT OF LABORATORY ANALYSIS <br /> 1 N L O A P T E 0 <br /> TNT AS A aAAN Lt Or OU At IT <br /> Mr. Doug Oram QUALITY CONTROL DATA June 25, 1991 <br /> Page 4 PACE Project Number: 410611502 <br /> EX7-3942/EA 10246. 19 <br /> PURGEABLE FUELS AND AROMATICS <br /> Batch: 70 04174 <br /> Samples: 70 0052386, 70 0052394, 70 0052408 <br /> METHOD BLANK: <br /> Method <br /> Parameter Units MDL Blank <br /> TOTAFT EL HYDROCARBONS, (LIGHT) : <br /> Purgeable Fuels, as Gasoline (EPA 801 ug/L 50 ND <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020 - <br /> Benzene ug/L 0.5 NO <br /> Toluene ug/L 0.5 NO <br /> Ethylbenzene ug/L 0.5 NO <br /> Xylenes, Total ug/L 1 .0 NO <br /> SPIKE AND SPIKE DUPLICATE: <br /> Spike <br /> Spike Dupl <br /> Parameter Units MDL 70 0007909 Spike Recv Recv RPD <br /> Purgeaabl'i Fuels, as Gasoline (EPA 801 ug-/ W RF— 384.00 186% ITR 3% <br /> Benzene ug/L 0.5 NO 40.00 101% 104% 2% <br /> Toluene ug/L 0.5 NO 40.00 JOS% 109% 3% <br /> Xylenes, Total ug/L 1 .5 NO <br /> Xylenes, Total ug/L 1 .0 120.00 113% 117% 3% <br /> MDL Method Detection Limit <br /> ND Not detected at or above the MDL. <br /> RPD Relative Percent Difference <br /> It 091al Drive offices serving: Mlnneapaks,Minnesota Chavlotle,North Cato6na An Equal Opportunity Employer <br /> Novato,CA 94949 Tampa.Florida Asheville,North Carolina <br /> TEL:415863.6100 Iowa City,Iowa New York,New York <br /> FAX:415 883 2673 Sen Frarxlsco,California Pittsburgh,Pennsylvania <br /> Kansas City,Missouri Denver,Colorado <br />