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COLUMBIA ANALYTICAL SERVICLa,INC. <br /> QA/QC Report <br /> Client: Equiva Services Service Request: K9904880 <br /> Project: Incident# 88870583/SAP#121258 Date Collected: NA <br /> LCS Matrix: Soil Date Received: NA <br /> Date Extracted: 7/28/99 <br /> Date Analvzed: 8/2/99 <br /> Laboratory Control Sample Summary <br /> Total Metals <br /> Sample Name: Laboratory Control Sample Units: m_/Kg(ppm) <br /> Lab Code: K9904880-LCSS Basis: Dry <br /> Test Notes: <br /> Source: Environmental Resource Associates#238 <br /> Prep Analysis True Percent Control Result <br /> Analyte Method Method Value Result Recovery Limits (%) Notes <br /> Lead EPA 3010 6010B 5.0 4.52 90 60-140 <br /> Approved By: Date: <br /> LCS/032295 <br /> Page 14 <br />