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,w amwq*?AM wass, w 8714n-6711 • ffillp , Mr 11110-7311-4/68 • Casper, wr 111111111,435-115115 <br />G- asrsalrs+rtra let J - - Cllletb, WY N&iE1-7175 • Rapid city, so LAI-Bn-InIl • CoINilie statism, Vt 5/5-59D-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 08/26/10 <br />Project: Schwartzwalder Water Monitoring Program Work Order: C10071062 <br />Analyte Count Result Units RL %REC Low Llmlt Htgh Umit RPD RPDLlmlI Chia) <br />Method: E200.8 Batch: R135770 <br />Sample ID: LRB 11 Method Blank Run: ICPMS2-C-100805B 08/05110 12:40 <br />Antimony 9E-05 mg/L 7E-05 <br />Arsenic ND mg/L 8E-05 <br />Chromium ND mg/L 4E-05 <br />Copper ND mg/L 7E-05 <br />Lead ND mg/L 3E-05 <br />Manganese ND mg/L 5E-05 <br />Molybdenum ND mg/L 5E-05 <br />Silver 8E-05 mg/L 3E-05 <br />Thallium ND mg/L 5E-05 <br />Uranium ND mg/L 1 E-05 <br />Zinc ND mg/L 0.0003 <br />Sample ID: LFB 11 Laboratory Fortified Blank Run: ICPMS2-C_100805B 0810511012.47 <br />Antimony 0.0498 mg/L 0.0010 99 85 115 <br />Arsenic 0.0496 mg/L 0.0010 99 85 115 <br />Chromium 0.0510 mg/L 0.0010 102 85 115 <br />Copper 0.0499 mg/L 0.0010 100 85 115 <br />Lead 0.0498 mg/L 0.0010 100 85 115 <br />Manganese MOW mg/L 0.0010 102 85 115 <br />Molybdenum 0.0502 mg/L 0.0010 100 85 115 <br />Silver 0.0195 mg/L 0.0010 97 85 115 <br />Thallium 0.0484 mg/L 0.0010 97 85 115 <br />Uranium 0.0482 mg/L 0.00030 96 as 115 <br />Zinc 0.0512 mg/L 0.0010 102 85 115 <br />Sample ID: 010071007-004CMS4 11 Sample Matrix Spike Run: ICPMS2-C_1008058 08/05/1014:52 <br />Antimony 0.0535 mg/L 0.050 107 70 130 <br />Arsenic 0.0523 mg/L 0.0010 100 70 130 <br />Chromium 0.0488 mg/L 0.0010 95 70 130 <br />Copper 0.0520 mg/L 0.010 94 70 130 <br />Lead 0.0505 mg/L 0.050 101 70 130 <br />Manganese 0.0474 mg/L 0.010 94 70 130 <br />Molybdenum 0.0504 mg/L 0.0010 99 70 130 <br />Silver 0.0148 mg/L 0.010 74 70 130 <br />Thallium 0.0491 mg/L 0.0010 98 70 130 <br />Uranium 0.0512 mg/L 0.00030 99 70 130 <br />Zinc 0.0544 mg/L 0.010 101 70 130 <br />Sample ID: C10071007-004CMSD 11 Sample Matrix Spike Duplicate Run: ICPMS2-C_100805B 08105/1014:59 <br />Antimony 0.0541 mg/L 0.050 108 70 130 1.2 20 <br />Arsenic 0.0525 mg/L 0.0010 100 70 130 0.3 20 <br />Chromium 0.0488 mg/L 0.0010 95 70 130 0.1 20 <br />Copper 0.0522 mg/L 0.010 95 70 130 0.4 20 <br />Lead 0.0505 mg/1- 0.050 101 70 130 0 20 <br />Manganese 0.0479 mg/L 0.010 95 70 130 1.1 20 <br />Oualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 17 of 29