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<br />Evergreen Analytical, Inc. <br />Date: 28-Jul-09 <br />Lab Order: 09-5192 <br />Client Project ID Leadville Mill Qtrly <br />CASE NARRATIVE <br />SAMPLE RECEIVING <br />Sample(s) were hand delivered to the laboratory by the client. <br />Custody seals were not present. <br />The temperature of the sample(s) upon arrival was 5.0°C. <br />Sample(s) were received in good condition, in the proper container, and within holding times. <br />Sample(s) were preserved properly. JD <br />QUALITY ASSURANCE (QA) <br />Analyses performed on samples in this work order by EAL meet the requirements of the EAL Quality <br />Assurance Program unless otherwise explained. Analyses of RCRA samples meet the requirements of <br />NELAC and Utah Rule R444-14 unless otherwise explained. Analyses of discharge samples meet the <br />requirements of 40 CFR Part 136 unless otherwise explained. JE <br />CLIENT SERVICES <br />There are no anomalies to report. EKH <br />GENERAL CHEMISTRY <br />pH : There are no anomalies to report. MM <br />METALS ANALYSIS <br />Method E200.7: Copper and Zinc were detected in the method blank (MB) at 0.079 mg/L and 0.046 <br />mg/L, respectively. These amounts were not subtracted from the sample results. Sample TSF-1 (09- <br />5192-03) results for Copper and Zinc were greater than five times the MB concentration so no further <br />action was needed. Since samples PT-2 (01) and MW-1 (-02) are non-detect for Copper and Zinc and <br />the bias is high, no further action is required. The matrix spike and matrix spike duplicate (MS/MSD; <br />on another client's sample) recoveries are above the QC limits for Aluminum. The recovery of <br />Aluminum for the laboratory control spike (LCS) is within QC limits, proving the analysis is in <br />control. There are no other anomalies to report. MB/JE