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• Equipment Rinse and Field Blank collected on January 29, 2013 were associated with the analysis of 16 samples had 0.5 mg/L TOC detected. Seven samples had TOC detected below the reporting limit and less than five times the blank result; the sample results were qualified as not detected (U) at the reporting limit. Six samples had TOC detected at a concentration that was greater than the reporting limit, but less than five times the blank concentration, and were qualified as estimated (J). • Equipment Rinse and Field Blank collected on January 30, 2013 were associated with the analysis of 15 samples had TOC detected at 0.09 and 0.1 mg/L, respectively. MW-4, MW-450S, and MW-4 Dup had TOC detected below the reporting limit and less than five times the blank result; the sample results were qualified as not detected (U) at the reporting limit. Additionally, Equipment Rinse contained 0.34 micrograms per liter of hexavalent chromium. Hexavalent chromium was detected in the associated samples at concentrations that were greater than five times the blank result, so no data were qualified. All data submitted for this project are of known and acceptable quality as qualified, based on laboratory- established control limits and the data quality objectives. These data are considered acceptable for their intended purposes. Summary of Qualified Data: Sample Name Laboratory ID Sample Date Parameter Result Unit Qualifier MW-320 Z3A2405-05 1/24/2013 TOC < 1.0 m /L U MW-303 Z3A2504-01 1/25/2013 TOC < 1.0 m /L U MW-303 Z3A2504-01 1/25/2013 Iron 0.520 m /L J TW-14 Z3A2504-02 1/25/2013 TOC 1.3 m /L J TW-17 Z3A2504-03 1/25/2013 TOC 1.1 m /L J TW-16 Z3A2504-08 1/25/2013 TOC < 1.0 m /L U TW-12 Z3A2504-13 1/25/2013 TOC 1.3 mg/L J TW-16 Dup Z3A2504-18 1/25/2013 TOC < 1.0 m /L U MW-322 Z3A2905-03 1/29/2013 TOC < 1.0 m /L U MW-324 1-10 Z3A2905-04 1/29/2013 TOC < 1.0 m /L U MW-2 Z3A2905-05 1/29/2013 TOC < 1.0 m /L U MW-301 Z3A2905-06 1/29/2013 TOC 1.6 m /L J TW-15 Z3A2905-07 1/29/2013 TOC 1.2 mg/L J MW-207 Z3A2905-08 1/29/2013 TOC 1.2 m /L J MW-321 1-9 Z3A2905-09 1/29/2013 TOC 1.9 m /L J MW-450D Z3A2905-10 1/29/2013 TOC < 1.0 mg/L U MW-106 Z3A2905-11 1/29/2013 TOC < 1.0 mg/L U MW-8 Z3A2905-12 1/29/2013 TOC < 1.0 m /L U TW-13 Z3A2905-13 1/29/2013 TOC 1.5 m /L J TW-13 Dup Z3A2905-15 1/29/2013 TOC 1.4 m /L J MW-321 1-9 Z3A2905-16 1/29/2013 TOC < 1.0 m /L U Page 3 of 6