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pacee <br /> REPORT OF LABORATORY ANALYSIS <br /> THE ASSURANCE OF QUALITY <br /> Mr. James Jacobs QUALITY CONTROL DATA April 09, 1992 <br /> Page 12 PACE Project Number: 420406515 <br /> Client Reference: Exxon 7-3330 <br /> TPH GASOLINE/BTEX <br /> Batch: 70 11429 <br /> Samples: 70 0067634, 70 0067642, 70 0067650, 70 0067669, 70 0067677 <br /> 70 0067685, 70 0067693, 70 0067707, 70 0067715, 70 0067723 <br /> METHOD BLANK: <br /> Method <br /> Parameter Knits MDL Blark <br /> TOTAL HYDROCARBONS, (LIGHT) : - <br /> Purgeable Fuels, as Gasoline (EPA 8015) ug/kg wet 200 ND <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020) . - <br /> Benzene ug/kg wet 1 .0 ND <br /> Toluene ug/kg wet 1 .0 ND <br /> Ethylbenzene ug/kg wet 1 .0 ND <br /> Xylenes, Total ug/kg wet 1 .0 ND <br /> 4WRATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE: <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> Purgeable Fuels, as Gasoline (EPA 8015) ug wet TOO- 267 104 998° 5% <br /> Benzene ug/kg wet 1.0 40.0 105% 107% 1% <br /> Toluene ug/kg wet 1.0 40.0 104% 106% 1% <br /> Ethylbenzene ug/kg wet 1.0 40.0 105% 106% 0% <br /> Xylenes, Total ug/kg wet 1 .0 80.0 103% 106% 2% <br /> MDL Method Detection Limit <br /> ND Not detected at or above the MDL, <br /> RPD Relative Percent Difference <br /> 00 <br /> 11 Digital Drive Offices Serving Minneapolis Minnesota Charlotte North Carolina An Equal Opportunity Employer <br /> Novato CA 94949 Tampa Florida Asheville North Carolina <br /> TEL 415 883 6100 Iowa City Iowa New York,New York <br /> FAX 415 883 2673 San Francisco,California Pittsburgh Pennsylvania <br /> Kansas City,Missouri Denver Colorado <br /> Los Angeles California <br />