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I N C p R P U R 0. T E l] ® REPORT OF LABORATORY ANALYSIS <br /> THE <br /> 1111111111 OF 01A1I11 <br /> 10 <br /> Mr James Jacobs QUALITY CONTROL DATA June 16, 1992 <br /> Page 14 PACE Project Number 420605525 <br /> Client Reference Exxon 7-3330 (C&M) <br /> Arsenic (EPA Method 7060, Furnace AAS) <br /> Batch- 70 13104 <br /> Samples 70 0159040 <br /> METHOD BLANK <br /> Method <br /> Parameter Units MDL Blank <br /> Arsenic (EPA Method 7060, Furnace AAS) mg/kg wet 10 ND <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> Arsenic (EPA Method 7060, Furnace AAS) mg/kg wet 10 50 90% 88% 2% <br /> MDL Method Detection Limit <br /> Not detected at or above the MDL <br /> Relative Percent Difference <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 6180 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 />