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CIIeM Number BNC01ARC01 <br /> Facility Number 434 <br /> Arco Representative Chuck Carmel <br /> Work Order Number C34)3-OOW <br /> t <br /> QC Matrix Spike and Duplicate Spike Results <br /> Matrix Water <br /> Sample Date of Spike Recovery, Duplicate <br /> Analyte ID Analysis Amount Units % Recovery, % RPDa, % <br /> Modified EPA 8020: <br /> Reagent <br /> Benzene Water 03/12/93 20 0 ug/L 970 101 40 <br /> Reagent <br /> Toluene Water 03/12/93 200 ug/L 100 108 77 <br /> Reagent <br /> Ethylbenzene Water 03/12/93 200 ug/L 975 101 35 <br /> Reagent <br /> Xylene,total Water 03/12/93 600 ug/L 106 112 55 <br /> Modified EPA 8020: <br /> Benzene 03030104-24 03/12/93 200 ug/L 935 NA NA <br /> Toluene 03030104-24 03/12/93 200 ug/L 118 NA NA <br /> Ethylbenzene 03030104-24 03/12/93 200 ug/L 985 NA NA <br /> • Xylene, total C3030104-24 23j 12 93 1 60 0 1 ug/L 113 NA NA <br /> a See attached table for aweptabdity limps <br /> WA w Applicable <br /> GTEL Concord,CA NGTEL <br /> C. 3Q436 LABORATORIES INC, <br />