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- "w,energylabxom Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 <br />?? Ana7yUrarFxcef(enreSinca 1951 ) Gillette, WY 866.686-7175 a Rapid City, SO 888-672-1125 4 College Station, TX 888-690.2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 12109/10 <br />Protect: Schwartzwalder Water Sampling Program-Ground Water Work Order: C10110027 <br />Analyte Count Result Units RL %REC Low Limit High Limit <br />Method: E903.0 <br />Sample ID: C10110265-001 DMS <br />Radium 226 <br />Sample ID: 010110265-OOlDMSD <br />Radium 226 <br />Sample ID: MB-RA226-4978 <br />Radium 226 <br />Radium 226 precision (t} <br />Radium 226 MDC <br />Sample ID: LCS-RA226-4978 <br />Radium 226 <br />Sample Matrix Spike <br />19.6 pCi/L <br />Sample Matrix Spike Duplicate <br />19.7 pCUL <br />3 Method Blank <br />-0.1 pCi/L <br />0.07 pCUL <br />0.2 pCi/L <br />Laboratory Control Sample <br />9.0 pCi/L <br />Qualifiers: <br />RL - Analyle reporting limit. <br />MOC - Minimum delectable concentration <br />RPD RPDLimit Qual <br />Batch: RA226-4978 <br />Run: BERTHOLD 770-2101108D 11/17/10 16:57 <br />111 70 130 <br />Run: BERTHOLD 770-2101108D 11117/10 16:57 <br />110 70 130 0.1 22.3 <br />Run: BERTHOLD 770.2_101108D 11/17/10 16:57 <br />U <br />Run: BERTHOLD 770-2_101108D 11/17/10 16:57 <br />115 70 130 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 21 of 26