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' ASSOCIATED LABORATORIES <br /> QA REPORT FORM <br /> ' QC Sample: LR 73102-574 <br /> ' Matrix: AIR <br /> ' Prep. Date : 05/19/01 <br /> Analysis Date: 05/19/01-05/20/01 <br /> ID#'s in Batch: LR 73119, 73102, 73120, 73123, 73148 <br /> SAMPLE RESULT/SAMPLE DUPLICATE <br /> 1 <br /> Sample Result I Sample Dap. Sample Result Sample Dup. <br /> Test Method Reporting Units =Vppm RPD Reporting Units =ug/L RPD <br /> Benzene 8021 ND ND 0 ND ND 0 <br /> ' Toluene 8021 19.40 23-40 19 73.00 88.00 19 <br /> ' Ethylbenzene 8021 84.40 85.00 1 366.00 367.00 0 <br /> Xylenes 8021 445.00 443.00 0 1933.00 1923.00 1 <br /> ' Gas 8015M 2,159 2,231 3 9,545 9,860 3 <br /> ND= "U"-Not Detected <br /> RPD LIMITS w 20 <br /> RPD=Relative Percent Difference of Sample Result and Sample Duplicate <br /> 1 <br /> 1 <br /> 05/29/2001 8021 air 0519.x1s <br />