2011-08-01_HYDROLOGY - M1977300 (2)

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ENERGY A 9 RAT(7RI F.ti Client: Cotter Corporation Project: Schwartz GW 6/29/11 S25824 Method: E353.2 Sample ID: ICV Nitrogen, Nitrate +Nitrite as N Method: E353.2 Sample ID: B11070439- 001DMSD Nitrogen, Nitrate +Nitrite as N Sample ID: B11070439 -001 DMS Nitrogen, Nitrate +Nitrite as N Sample ID: LFB Nitrogen, Nitrate +Nitrite as N Sample ID: MBLK Nitrogen, Nitrate +Nitrite as N Sample ID: 811070565- 001AMSD Nitrogen, Nitrate +Nitrite as N Sample ID: B11070565- 001AMS Nitrogen, Nitrate +Nitrite as N wwwab.wm Arrlytkal &whoa Mai 1552 Qualifiers: RL - Analyte reporting limit. MDC - Minimum detectable concentration Initial Calibration Verification Standard 21.9 mg /L 0.060 0.993 mg /L 0.984 mg /L 1.32 mg /L 1.33 mg /L Helena, MT 877. 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888 - 235 -0515 Gillette, WY 888 - 888 -7175 • Rapid City, SD 888- 672.1225 • College Station, IX 888- 080 -2218 QA/QC Summary Report Prepared by Casper, WY Branch Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual 100 90 Sample Matrix Spike Duplicate Run: SUB- B168569 0.990 mg/L 0.010 101 90 110 Sample Matrix Spike Run: SUB- B168569 0.010 101 90 110 Laboratory Fortified Blank Run: SUB- B168569 0.010 100 90 110 Method Blank Run: SUB- B168569 ND mg /L 0.10 Sample Matrix Spike Duplicate Run: SUB- B168569 110 0.010 103 90 110 Sample Matrix Spike Run: SUB- B168569 0.010 104 90 110 ND - Not detected at the reporting limit. Report Date: 08/01/11 Work Order: C11070057 Analytical Run: SUB- B168569 07/08/11 08:06 Batch: B_R168569 07/08/11 08:32 0.3 10 07/08/11 11:55 0.5 10 Page 14 of 21 07/08/11 08:31 07/08/11 08:08 07/08/11 08:07 07/08/11 11:54