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i <br /> MATRIX ENVIRONMENTAL LABORATORIES <br /> ANALYSIS REPORT <br /> Date Samples Received: N/A PROJECT• Regal 603 <br /> Date of Analysis: 09/25/92 COC No. : 3503 <br /> Sample ID: MS , MSD <br /> Lab ID: 923024 <br /> Matrix: WATER <br /> BTEX MATRIX SPIKE SUMMARY <br /> CONC CONC PERCENT <br /> COMPOUND SPIKED MEASURED RECOVERY RPD <br /> MS MSD MS MSD <br /> BENZENE 20 . 0 18 . 6 17 . 7 93% 89% 5% <br />• TOLUENE 20 . 0 18 . 7 17 . 9 94% 900 40 <br /> ETHYLBENZENE 20 . 0 18 . 5 17 . 7 93% 89% 4% <br /> XYLENES 60 . 0 55 . 6 53 4 93% 89% 40 <br /> MS= MATRIX SPIKE <br /> MSD= MATRIX SPIKE DUPLICATE <br /> RPD= RELATIVE PERCENT DIFFERENCE <br /> CONC= CONCENTRATION <br /> • <br /> 3017 KILGORE ROAD #110 • RANCHO CORDOVA CA 95742 PHONE (916) 635 3962 + FAX (916) 635 033 <br />