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aient Number 020,05305 <br /> Facddy Number 2168 <br />' <br /> Area Representative Kyle Christie <br /> Project to Stockton <br /> Work Order Number C443.0453 <br /> QC Check Sample Results <br /> E <br /> Date of Expected <br /> Analyte Source Analysis Value Units Recovery, % <br /> TOG iR: IW-0200 03/28/" 1045 m L 915 <br /> 1 <br /> QC Matrix Spike and Duplicate Spike Results <br /> Matrix Water <br /> Duplicate <br /> Sample Spike Recovery, Recovery, Control <br /> Analyte ID Amount Units % % RPD, % Limits <br /> • Modified EPA 8020: <br /> Benzene C4030421-06 200 ug/L 1 938 998 62 57 3-138 <br /> Toluene C4030421-06 200 ug/L 786 826 49 630-134 <br /> Ethylbenzene C4030421-06 200 ug/L 870 90 0 34 593-137 <br /> Xylene,total C4030421-06 600 ug/L 887 925 4_2 59 3-144 <br /> TOG IR: LCSa 1 108 5 i m L 922 999 8 0 70-130 <br /> a Not enough sample to perform a matrix CC <br /> r <br /> GTE <br /> r <br /> r <br /> I_Concord.0A Page B <br /> C4053 MGTEL <br /> 040304B'i'E <br />. ENVIRDNfAINTAI <br /> iAAORATORIES INC <br />