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• JIM- www.en qr ob.com Helcna, MT 877-472-0711 - Billings, W 800-735-4489 a Casper, WY 888-235-0515 <br />c 6 tc, WV 866-686-7175 - Rapid City, SD SOB-672-1225 - Collega Station, TX 888-680-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 09/14/10 <br />Project: Schwartzwalder Water Monitoring Program Work Order: C10080538 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.7 Batch: 27097 <br />Sample ID: MB-27097 7 Method Blank Run: ICP2-C_100818A 08/18/10 17:42 <br />Aluminum ND mg/L 0.01 <br />Arsenic ND mg/L 0.03 <br />Boron ND mg/L 0.008 <br />Chromium ND mg/L 0.002 <br />Copper ND mg/L 0.001 <br />Iron ND mg/L 0.008 <br />Manganese ND mg/L 0.0008 <br />Sample ID: LCS3-27097 <br />Aluminum <br />Arsenic <br />Boron <br />Chromium <br />Copper <br />Iron <br />Manganese <br />Sample ID: 010080596-001CMS3 <br />Aluminum <br />Arsenic <br />Boron <br />Chromium <br />Copper <br />Iron <br />Manganese <br />Sample ID: 010080596-001CMSD <br />Aluminum <br />Arsenic <br />Boron <br />Chromium <br />Copper <br />Iron <br />Manganese <br />7 Laboratory Control Sample Run: ICP2-C_100818A 08/18/10 17:46 <br />2.46 mg/L 0.10 98 85 115 <br />0.491 mg/L 0.033 98 85 115 <br />0.507 mg/L 0.10 101 85 115 <br />0.498 mg/L 0.050 100 85 115 <br />0.497 mg/L 0.010 99 85 115 <br />2.52 mg/L 0.030 101 85 115 <br />2.47 mg/L 0.010 99 85 115 <br />7 Sample Matrix Spike Run: ICP2-C_100818A 08/18/ 10 18:10 <br />125 mg/L 0.10 70 130 A <br />0.573 mg/L 0.17 115 70 130 <br />0.176 mg/L 0.10 35 70 130 S <br />0.530 mg/L 0.050 102 70 130 <br />40.4 mg/L 0.010 70 130 A <br />225 mg/L 0.041 70 130 A <br />30.1 mg/L 0.010 70 130 A <br />7 Sample Matrix Spike Duplicate Run: ICP2-C_100818A 08/18/ 10 18:14 <br />130 mg/L 0.10 70 130 3.9 20 A <br />0.561 mg/L 0.17 112 70 130 2.1 20 <br />0.162 mg/L 0.10 32 70 130 8.3 20 S <br />0.532 mg/L 0.050 102 70 130 0.3 20 <br />41.4 mg/L 0.010 70 130 2.3 20 A <br />230 mg/L 0.041 70 130 2.2 20 A <br />30.6 mg/L 0.010 70 130 1.6 20 A <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />MDC - Minimum detectable concentration <br />Page 14 of 31