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GEL LABORATORIES LLC <br /> 2040 Savage Road Charleston, SC 29407-(843)556-8171 -www.gel.com <br /> QC Summary <br /> Workorder: 344616 Page 3 of 4 <br /> Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time <br /> Rad Gas Flow <br /> Batch 1375019 <br /> Alpha 494 30.6 495 pCi/L 26.5* 93.9 (0%-20%) 04/02/1414:02 <br /> Uncertainty +/-5.63 +/-40.2 <br /> Beta 1820 75.5 1900 pCi/L 15.8 101 (0%-20%) DXG3 <br /> Uncertainty +/-4.11 +/-38.1 <br /> Rad Ra-226 <br /> Batch 1373139 <br /> QC1203051534 344616001 DUP <br /> Radium-226 U 0.199 U 0.254 pCi/L N/A N/A KSD1 03/25/14 11:05 <br /> Uncertainty +/-0.0597 +/-0.0535 <br /> QC1203051536 LCS <br /> Radium-226 12.3 12.5 pCi/L 101 (90%-110%) 03/25/1411:40 <br /> Uncertainty +/-0354 <br /> QC1203052244 LCSD <br /> Radium-226 12.3 11.2 pCi/L 10.3 91.1 (0%-20%) 03/25/1412:30 <br /> Uncertainty +/-0338 <br /> QC1203051533 MB <br /> Radium-226 U 0.0281 pCi/L 03/25/1411:05 <br /> Uncertainty +/-0.0409 <br /> Notes: <br /> Counting Uncertainty is calculated at the 68%confidence level(1-sigma). <br /> The Qualifiers in this report are defined as follows: <br /> ** Analyte is a surrogate compound <br /> < Result is less than value reported <br /> > Result is greater than value reported <br /> A The TIC is a suspected aldol-condensation product <br /> B For General Chemistry and Organic analysis the target analyte was detected in the associated blank. <br /> BD Results are either below the MDC or tracer recovery is low <br /> C Analyte has been confirmed by GC/MS analysis <br /> D Results are reported from a diluted aliquot of the sample <br /> F Estimated Value <br /> H Analytical holding time was exceeded <br /> K Analyte present.Reported value may be biased high.Actual value is expected to be lower. <br /> L Analyte present.Reported value may be biased low.Actual value is expected to be higher. <br /> M M if above MDC and less than LLD <br /> M Matrix Related Failure <br /> N/A RPD or%Recovery limits do not apply. <br /> N1 See case narrative <br /> ND Analyte concentration is not detected above the detection limit <br /> NJ Consult Case Narrative,Data Summary package,or Project Manager concerning this qualifier <br /> Page 93 of 94 <br />