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' L <br /> CO UMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client: EMCON Service Request: L952343 <br /> Project: ARCO Products Company#2168/#0805-146 04 Date Collected: NA <br /> Sample Matrix. Soil Date Received NA <br /> Date Extracted: NA <br />' Date Analyzed: 5/16/95 <br /> Matrix Spike/Duplicate Matnx Spike Summary <br />' Reactive Sulfide <br /> Method SW846 7 3 4 2/376 2 <br /> Units mg/Kg(ppm) <br /> Sample Name SP-1 <br />' Lab Code L952343-001 <br /> Percent Recovery <br /> CAS Relative <br /> Spike Leel Sample Spike Result Acceptance Percent <br /> Analyte MS DMS Result MS DMS MS DMS Limits Difference <br />' Reactive Sulfide 1141 1141 ND 679 7 13 60 62 20-120 5 <br /> 1 <br /> ND None Detected at or above the method reporting lttu t <br /> NA Not Applicable <br /> Approved By Date J <br /> DM$iSJ060194 <br /> !952143 XLS gewm4 5119f93 <br /> Page No 08 <br /> �R <br /> 6925 CANOCA AVENUE CANOGA PARK, CA 91303 ■ 818 587-5550 ■ FAX 818 587-5555 VN <br />