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www.ervgylab.com ( Helena, MT 877 -472 -0711 - Billings, MT 808- 735 -4469 - Casper, WY 888- 235 -8515 <br />Aadyolcs Ewm6=ftw IZ2 JI Gillette, WP 866 -666 -1175 - Rapid City, SD 886 -672 -1225 • College Station, TX 888 - 698 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />06/06/13 <br />Project: Schwartz SW 05/08/13 S26872 <br />Work Order: <br />C13050363 <br />[Analyte Count Result <br />Units <br />RL <br />%REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: A2540 D <br />Batch: 130513 1 SLDS -TSS -W <br />Sample ID: MBLK1_130513 <br />Method Blank <br />Run. BAL -19 130513A <br />05/13/13 09:03 <br />Solids, Total Suspended TSS @ 105 C <br />ND <br />mg /L <br />2 <br />Sample ID: LCS1_130513 <br />Laboratory Control Sample <br />Run: BAL- 19_130513A <br />05/13/13 09:03 <br />Solids, Total Suspended TSS @ 105 C <br />182 <br />mg /L <br />6.0 <br />91 60 110 <br />Sample ID: C13050363 -001 BDUP <br />Sample Duplicate <br />Run: BAL- 19_130513A <br />05/13/13 09:04 <br />Solids, Total Suspended TSS Co) 105 C <br />2.40 <br />mg /L <br />4.0 <br />5 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 7 of 26 <br />