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r Trust our People.Trust our Data. Billings, MT 800.735.4489 • Casper, WY 888.235.0515 <br />G: College Station, TX 888.690.2218 • Gillette, WY 866.686.7175 • Helena. MT 877.472.0711 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />03/30/15 <br />Project: Schwartz -SW 3/3/15 S28121,S28124 <br />Work Order: <br />C15030087 <br />Analyte Count Result Units <br />RL <br />%aREC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E353.2 <br />Batch: R196778 <br />Lab ID: MBLKA Method Blank <br />Run: TECH NICON-1 50305A <br />03/05/15 11:44 <br />Nitrogen, Nitrate+Nitrite as N ND mg/L <br />0.01 <br />Lab ID: LFB-3 Laboratory Fortified Blank <br />Run: TECHNICON_150305A <br />03/05/15 11:49 <br />Nitrogen, Nitrate+Nitrite as N 2.16 mg/L <br />0.10 <br />110 90 110 <br />Lab ID: C15030083-002CMS Sample Matrix Spike <br />Run: TECHNICON_150305A <br />03/05/15 11:54 <br />Nitrogen, Nitrate+Nitrite as N 2.74 mg/L <br />0.10 <br />112 90 110 <br />S <br />Lab ID: 015030083-002CMSD Sample Matrix Spike Duplicate <br />Run: TECHNICON_150305A <br />03/05/15 11:57 <br />Nitrogen, Nitrate+Nitrite as N 2.76 mg/L <br />0.10 <br />113 90 110 0.7 <br />10 S <br />- Matrix spike recoveries outside the acceptance range are considered matrix -related. <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Page 12 of 18 <br />