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pacee <br /> REPORT OF LABORATORY ANALYSIS <br /> THE ASSURANCE OF QUALITY <br /> 1!*rJames Jacobs QUALITY CONTROL DATA June 09, 1992 <br /> Page 21 PACE Project Number 420602502 <br /> Client Reference Exxon 7-3330 (CM) <br /> Chromium, Hexavalent <br /> Batch: 70 12983 <br /> Samples: 70 0155177, 70 0155185, 70 0155193, 70 0155207, 70 0155215 <br /> METHOD BLANK: <br /> Method <br /> Parameter Units MDL Blank <br /> CC ro�mium, Hexavalent mg/kgwet 0 1 ND <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE: <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> C ro�mium, Hexavalent mg gg wet 0 1 4 0 1060/. 96% 9% <br /> MDL Method Detection Limit <br />'N 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 />