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www ieveb.com 8 `7 X472=0711 •' Billings, mT 800-735-4489 • Casper, *80il-235-0515 <br />- " tl `! Rapid Cirty, S0 888-672-1225 • College Station, TX 888-610-2216 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 03/04/11 <br />Project: Schwartz GW 02-09-1 1 S25579 Work Order: C11020422 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLfmit Qual <br />Method: E300.0 Batch: R142838 <br />Sample ID: LCS 2 Laboratory Control Sample Run: IC2-C_110215A 02/15/11 13:19 <br />Chloride 9.96 mg/L 1.0 100 90 110 <br />Sulfate 40.0 mg/L 1.0 100 90 110 <br />Sample ID: MBLK 2 Method Blank Run: IC2-C_110215A 02/15/11 13:37 <br />Chloride ND mg/L 3.0 <br />Sulfate ND mg/L 5.0 <br />Sample ID: LFB 2 Laboratory Fortified Blank Run: IC2-C_110215A 02/15/11 14:12 <br />Chloride 12.1 mg/L 1.0 97 90 110 <br />Sulfate 49.5 mg/L 1.0 99 90 110 <br />Sample ID: C1 1020396-001 AMS 2 Sample Matrix Spike Run: IC2-C_110215A 02/17/11 01:16 <br />Chloride 136 mg/L 2.0 97 80 120 <br />Sulfate 2250 mg/L 8.0 80 120 A <br />Sample ID: C11020396-001AMSD 2 Sample Matrix Spike Duplicate Run: IC2-C_110215A 02/17/11 01:33 <br />Chloride 135 mg/L 2.0 96 80 120 0.8 10 <br />Sulfate 2160 mg/L 8.0 80 120 4.0 10 A <br />Qualifiers: <br />RL - Analyte reporting limit. A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />ND - Not detected at the reporting limit. MDC - Minimum detectable concentration <br />Page 15 of 22 <br />