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two samples at concentrations that were greater than the reporting limit, but less than five times the blank concentration, and were qualified as estimated (J) in all four samples. • Equipment Rinse and Field Blank, collected on May 2, 2012, were associated with the analysis of six samples and had TDS detected at 5.0 and 7.0 mg/L, respectively, and TOC detected at 0.2 and 0.1 mg/L, respectively. Additionally, sulfate was detected at 1.1 mg/L in Equipment Rinse. Sulfate and TDS were detected in the associated samples at concentrations that were greater than five times the blank concentration and were not qualified. TOC was detected in five samples at concentrations that were below the reporting limit and less than five times the blank concentration; these results were qualified as estimated non-detects (U) at the reporting limit. 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 Sample Parameter Result Unit Qualifier ID Date EW-1 Y2D2412-01 4/24/2012 TOC 1.3 m /L J MW-213 Dup Y2D2412-14 4/24/2012 Hexavalent chromium 5130 /L J MW-214 1-8 Y2D2412-15 4/24/2012 Hexavalent chromium <0.20 /L UJ MW-310 Y2D2412-16 4/24/2012 Hexavalent chromium 8.36 /L J MW-325 Y2D2412-17 4/24/2012 Hexavalent chromium 7.82 pg/L J MW-320 Y2D2412-18 4/24/2012 Hexavalent chromium 10.9 /L J MW-320 Dup Y2D2412-19 4/24/2012 Hexavalent chromium 10.9 /L J Field Blank Y2D2412-20 4/24/2012 Hexavalent chromium <0.20 /L UJ Equipment Rinse Y2D2412-21 4/24/2012 Hexavalent chromium <0.20 /L UJ TW-12 Y2D2510-05 4/25/2012 TOC 1.7 m /L J TW-13 Y2D2510-06 4/25/2012 TOC 1.8 m /L J TW-16 Y2D2510-07 4/25/2012 TOC 1.1 m /L J TW-17 Y2D2510-08 4/25/2012 TOC 2.0 m /L J MW-303 Y2D2510-09 4/25/2012 Chromium 0.005 m /L J MW-304 Y2D2605-01 4/26/2012 Hexavalent chromium 8.27 /L J MW-6 Y2D2605-02 4/26/2012 Hexavalent chromium <0.20 N /L UJ MW-322 Y2D2605-03 4/26/2012 Hexavalent chromium 17.4 /L J MW-105 Y2D2605-04 4/26/2012 Hexavalent chromium <0.20 /L UJ Field Blank Y2D2605-05 4/26/2012 Hexavalent chromium <0.20 /L UJ Equipment Rinse Y2D2605-06 4/26/2012 Hexavalent chromium <0.20 /L UJ MW-201 Y2D3003-01 4/30/2012 Hexavalent chromium 10.7 /L J MW-2 Y2D3003-02 4/30/2012 Hexavalent chromium 15.9 /L J MW-2 Y2D3003-02 4/30/2012 Sulfate 29.9 m /L J MW-207 Y2D3003-03 4/30/2012 Hexavalent chromium 56.3 /L J MW-301 Y2D3003-04 4/30/2012 Hexavalent chromium 59.6 /L J MW-301 Dup Y2D3003-05 4/30/2012 Hexavalent chromium 59.0 /L J Page 3 of 6