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M � M gem M M � m Page 6 DPP 4r M <br /> Quality Assurance Results Summary <br /> for <br /> Clayton Project No 92031 84 <br /> Analytical Method EPA504 <br /> Clayton Lab Number 9203184 MS Instrument ID 02933 <br /> Ext /Prep Method EPA 504 Date 03/17/92 <br /> Date <br /> 03/17/92 Time 14 28 <br /> Analyst PH Analyst PH <br /> Std Source G920107 0118 Units UG/L <br /> Sample Matrix/Media WATER <br /> Ms MSD Average <br /> vvLCL UUCR RSD 9U6CRP <br /> Matrix Recovery matrix Spike Recovery Recovery D} <br /> Analyte <br /> Sample Result Spike Level Spike Result (%) Duplicate Result (%) ( ) ( ) ( ( ) <br /> 1.2 DIBROM0 3 CtiLDROPRDPANE ND 0 714 <br /> D 653 91 0 1195 91 94 75 125 6 2 25 <br /> 1,2 DIBROMOETHANE <br /> ND 0 714 0 593 83 0 583 62 82 75 125 1 7 25 <br /> LCL = Lower Control limit <br /> UCL = Upper Control limit <br /> LCS = Laboratory Control Sample SOR = Spike out of range due to high sample concentiallon <br /> ND = Not detected at or above limit of detect ton <br />