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i} <br /> Client Number SN001ARC01 <br /> Facility Number 2133 <br /> Arca Representative Chuck Carmel <br /> Work Order Number C3-07-0251 <br /> OC Check Sample Results <br /> Date of 1 Expected <br /> Analyte Source Analysis Value Units Recovery$, % <br /> Modified EPA 8424: <br /> Benzene SUPELCO 06/23/93 500 ug/L 108 <br /> Toluene SUPELCO 06/23/93 500 ug/L 112 <br /> Ethylbenzene SUPELCO 06/23/93 500 ug/L 103 <br /> Xylene,total SUPELCO 06/23/93 1500 ug/L 110 <br /> Metals: <br /> Lead VHG LOT #21039H 07 20 93 50 u L 954 <br /> OC 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 /> Benzene 03070259-12 07/24/93 200 ug/L 110 112 is <br /> Toluene C3070259-12 07/24/93 200 ug/L 100 101 10 <br /> Ethylbenzene C3070259-12 07/24/93 200 ug/L 890 885 d49 <br /> Xylene,total C3070259-12 07/24/93 600 ug/L . 890 867 <br /> Metals: <br /> Lead 03070121-01 00 07 20 93 50u L 910 87 0 <br /> a See attached table for acceptability limits <br /> GTEL Concord,CA CTE L <br /> 03070251 BTE <br /> EONVIRONMENTAL <br /> LABORATORIES INC <br />