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Yu � <br /> ASSOCIATED LABORATORIES <br /> • QA REPORT FORM <br /> QC Sample LR 75784-881 <br /> Matnx 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 %Ree %Rec <br /> Test Method Result Added Spike Spk Dup MS MSD RPD <br /> Benzene 8021 ND 10 0 1010 1000 101 100 I <br /> Toluene 8021 ND 100 10 10 1000 101 100 1 <br /> Ethylbenzene 8021 ND 100 1080 1080 108 108 0 <br /> Xylenes 8021 ND 200 2050 2040 103 102 0 <br /> Surrogate 8021 ND 200 20 00 2000 100 100 0 <br /> ND=Not Detected <br /> RPD=Relative Percent Difference ofMatrtx Spike and Matrix Spike Dup %REC LIMITS = 70-130 <br /> %REC-MS&MSD=Percent Recovery of Matrrx Spike&Matrix Spike Duplicate JRPD LIMITS = 30 <br /> PREPARATION BLANK/LAB CONTROL SAMPLE RESUL'T'S <br /> PREP BLK LCS <br /> Test Method Value Result True %Rec L Limit II Limit <br /> Benzene 8021 ND 1050 100 105 80% 120% <br /> Toluene 8021 ND 1090 100 109 80% 120% <br /> Ethylbenzene 8021 ND 1130 100 113 80% 120% <br /> Xylenes 8021 ND 21 70 200 109 80% 120% <br /> Surrogate 8021 ND 2000 200 WO 80% 120% <br /> LCS =Lab Control Sample Result <br /> TRUE=True Value of LCS <br /> 7111101 8021 btex 0710w <br />