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ASSOCIATED LABORATORIES <br /> QA REPORT FORM <br /> QC Sample LR 75784-881 <br /> Matrix WATER <br /> Prep Date 07/10/01 <br /> Analysis Date 7/10/01-7/11/01 <br /> LAB ID#'s in Batch LR 75793, 75792, 75847 <br /> MATRIX SPIKE/MATRIX SPIKE DUPLICATE RESULT <br /> REPORTING UNITS= ug/L <br /> Sample Spike Matrix Matrix %Rec %Rec <br /> Test Method Result Added Spike Spk Dup MS MSD RPD <br /> Benzene 8021 ND too 1010 1000 101 100 1 <br /> Toluene 8021 ND 100 1010 1000 101 100 I <br /> Ethylbenzene 8021 ND _ 100 1080 logo 108 108 0 <br /> Xvlenes 8021 ND 200 2050 2040 103 102 f? <br /> Surrogate 8021 ND 20 0 2000 2000 100 100 0 <br /> ND=Not Detected <br /> RPD=Relatne Percent Difference of Vairir Spike and Afairir Spike Ditp ,,,REC LIMITS = 70- 130 <br /> "„AEC-AIS&AISD=Percent Recotien of Afatnz Spike&Motor Spike Duphraie RPD LIMITS = 30 <br /> PREPARATION BLANK/LAB CONTROI.,SAMPLE RESULTS <br /> PREP BLK LCS <br /> Test Method Value Result True %Rec L Limit H Limit <br /> BenTene 8021 ND 1050 l0 0 1(b 80% 120% <br /> Toluene 8021 ND 1090 l0 0 109 80% 120% <br /> Ethylbenzene 8021 ND 11 30 100 113 80% 120% <br /> Xylenes 8021 ND 21 70 200 109 80% 120% <br /> Surrogate 8021 ND 2000 200 100 80% 120% <br /> LCS =Lab Cartrol Sample Result <br /> TRUE= Tide 1 alae o1 LCS <br /> 71t 1/01 8021 btex 0710w <br />