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t <br /> ROY F. WESTON INC. <br /> INORGANICS LABORATORY CONTROL STANDARDS REPORT 03/19/92 <br /> SPIKED SPIKED <br /> SAMPLE SITE ID ANALYTE SAMPLE AMOUNT UNITS %RECOV <br /> -- <br /> LCS10 92SHAO13-LCl Chloride 41.0 40.0 MG/L 102 <br /> LCS20 92SHA013-LC2 Chloride 41.0 40.0 MG/L 102 <br /> LCS10 92SCDO08-LCI Chemical Oxygen Demand 522 500 MG/L 104 <br /> LCS20 92SCD008-LC2 Chemical Oxygen Demand 510 500 MG/L 102 <br />