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d <br /> CHEMTECH ANALYTICAL. LABORATORIES <br /> ANALYSIS REPORT <br /> CLIENT: Western Geo CONTACT: G. Converse <br /> Date Samples Received: 03-29-91 P.O. #-* <br /> Date of Analysis: 04-01-91 CT ID: 1902 <br /> Sample ID: MW--4 <br /> Lab ID: 910820 <br /> Matrix: Water <br /> ANALYSIS: BTEX. EPA 602 <br /> COMPOUND ug/L REPORTING LIMIT <br /> ( Ppb) ug/L (PPb) <br /> --EN-HEN ------- --------------- <br /> BENZENE 360. 0.3 <br /> TOLUENE 91 . 0.3 <br /> ETHYLBENZENE NO 0.3 <br /> XYLENES 140. 0.9 <br /> SURROGATE RECOVERY ACCEPTABLE RANGE <br /> 176% 70% TO 130% <br /> MOTE: ( ND) NOT DETECTED AT OR ABOVE THE REPORTING LIMITS. <br /> NOTE: Due to a matrix interference, the surrogate recovery <br /> was adver3ely effected, but remair-d identifiable <br /> by retention time. <br />