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ace <br /> l N t 0 N P 0 R A T E 0 ® REPORT OF LABORATORY ANALYSIS <br />' THE ASSURANCE Of QUALITY <br /> Doug Oram QUALITY CONTROL DATA May 07, 1992 <br /> age 11 PACE Project Number 420501512 <br /> Client Reference- Exxon 7-3942 <br /> TPH GASOLINE/BTEX <br /> Batch: 70 12105 <br /> Samples* 70 0090628, 70 0090636, 70 0090644, 70 0090652, 70 0090679 <br /> 70 0090695, 70 0090709, 70 0090717 <br /> METHOD BLANK <br /> Method <br /> Parameter Units MDL Blank <br />' OTALFUEL HYDROCARBONS, (LIGHT) <br /> Purgeable Fuels, as Gasoline (EPA 8015) ug/L 50 ND <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020) : - <br /> Benzene ug/L 0.5 ND <br /> Toluene ug/L 0 5 NO <br /> Ethylbenzene ug/L 0 5 NO <br />' Xylenes, Total ug/L 0 5 NO <br /> ORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE- <br /> Reference Dupl <br /> Warameter Units MDL Value Recv Recv RPD <br /> Purgeable Fuels, as Gasoline (EPA 8015) ug/L To— 324 113 1069a 6% <br /> Benzene Toluene ug/L 0.5 40.0 98% 97% 1% <br /> u9/L 0.5 40 0 103% 101% 1% <br /> Ethylbenzene ug/L 0.5 40 0 109% 106% 2% <br /> Xylenes, Total ug/L 0.5 80.0 107% 104% 2% <br />,MDL Method Detection Limit <br /> RPD Relative Percent Difference <br /> r <br />�l <br /> 11 Digital Drive Offices Serving Minneapo&s 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 2613 San Francisco California Pittsburgh Pennsylvania <br /> Kansas City Missouri Oenver Colorado <br /> Los Angeles California <br />