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wwwwwRyiebzofn <br />A "WhwLwaf =a m Im <br />24711 • Billings, MT 800-735-409 • Casper, WY888-235-8515 <br />Ripid City, SD`918-672-1225 • Wlege Station, TX.888-690-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 04/15/11 <br />Project: Schwartz-SW 03/16/11 S25593-25600 Work Order: C11030585 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Batch: R144365 <br />Sample ID: LRB 3 Method Blank Run: ICPMS2-C_110401A 04/01/11 14:07 <br />Antimony ND mg/L 7E-05 <br />Copper 0.0009 mg/L 7E-05 <br />Silver ND mg/L 3E-05 <br />Sample ID: LFB 3 Laboratory Fortified Blank Run: ICPMS2-C_110401A 04/01/11 14:14 <br />Antimony 0.0575 mg/L 0.0010 115 85 115 <br />Copper 0.0581 mg/L 0.0010 115 85 115 <br />Silver 0.0216 mg/L 0.0010 108 85 115 <br />Sample ID: C11030817-002CMS4 3 Sample Matrix Spike Run: ICPMS2-C_110401A 04/01/11 14:55 <br />Antimony 0.0603 mg/L 0.050 120 70 130 <br />Copper 0.0546 mg/L 0.010 106 70 130 <br />Silver 0.0245 mg/L 0.010 122 70 130 <br />Sample ID: C11030817-002CMSD 3 Sample Matrix Spike Duplicate Run: ICPMS2-C_110401A 04/01/11 15:01 <br />Antimony 0.0590 mg/L 0.050 117 70 130 2.2 20 <br />Copper 0.0545 mg/L 0.010 106 70 130 0.2 20 <br />Silver 0.0192 mg/L 0.010 96 70 130 24 20 R <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />R - RPD exceeds advisory limit. <br />Page 20 of 39 <br />-. ._...,.. _?.?..?-,?.,-?,:, u._,..,..,. ,mo- .p °?.?-?.-r:._ _.. .? _.? .. _.e.:v?-Y?::a?.:..-_. _..--:y? - _ - -- .le..ca?-d..??...y?-e::..? at?.t?i?-.a-:?,. ??.?• _..ati ...? _ `'