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O Superior precision Ana/ytica/, Inc_ <br />!J 1555 Burke, Unit I • San Francisco, California 94124 • (4 15) 647-2081 / fax (4 15) 82 1-7 123 <br />C E R T I F I C A T E O F A N A L Y S I S <br />LABORATORY NO.: 54621 <br />CLIENT: Kleinfelder <br />CLIENT JOB NO.: 24-215600E03 <br />Analyte <br />DATE RECEIVED: 03/18/92 <br />DATE REPORTED: 03/23/92 <br />EPA SW -846 METHOD 8020 <br />AROMATIC VOLATILE ORGANICS <br />Benzene <br />Toluene <br />Ethyl Benzene <br />Chlorobenzene <br />1,4 -dichlorobenzene <br />1,3 -dichlorobenzene <br />1,2 -dichlorobenzene <br />Xylenes <br />LAB #: 2 <br />SAMPLE: 68945 <br />MDL (ug/L) (ug/ L) <br />0.3 <br />ND<0.3 <br />0.3 <br />ND<0.3 <br />0.3 <br />ND<0.3 <br />0.3 <br />ND<0.3 <br />0.3 <br />ND<0.3 <br />0.3 <br />ND<0.3 <br />0.3 <br />ND<0.3 <br />0.3 <br />ND<0.3 <br />Minimum Detection Limit in Water: 0.3 ug/L <br />QAQC Summary: <br />Daily Standard run at 20mg/L: %DIFF 8020 = <15% <br />MS/MSD Average Recovery =98%: Duplicate RPD =2.4% <br />Richard Srna, Ph.D. <br />av) <br />Laborat r Di ector <br />Certified Laboratories <br />