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r <br /> r <br /> CHEMTECH ANALYTICAL LABORATORIES <br /> ANALYSIS REPORT <br /> -- - Date Samples Received: N/A P.O. No: <br /> Date of Analysis: 07/10/91 CT ID: 1988 <br /> Sample ID: LCS, LCSD <br /> Lab ID: NIA <br /> Mat=1X: WATER <br /> BTEX LABORATORY CONTROL SPIKE SUMMARY <br /> a� f <br /> CONC C4NC PERCENT <br /> COMPOUND SPIKED MEASURED RECOVERY RPD <br /> LCS LCSD LCS LCSD <br /> # j BENZENE 25 24 25 96% 1005 4% <br /> TOLUENE 25 24 26 96$ 104% 8t <br /> ETHYL BENZENE 25 24 26 96% 104% 8$ <br /> , I <br /> TOTAL XYLENES 75 71 77 95% 103% 8% <br /> ;a <br /> s <br /> 4 <br /> I" <br /> ICS= LABORATORY CONTROL SPIKE <br /> LCSD= LABORATORY CONTROL SPIKE DUPLICATE <br /> RPD= RELATIVE PERCENT DIFFERENCE <br /> CONC= CONCENTRATION _ <br /> k <br /> 4k n K r <br /> a <br /> i <br /> 3017 KILGORE ROAD#110 a RANCHO CORDOVA CA 95742 PHONE (916) 635-3962 a FAX(916)635 9331 <br /> t <br />