Tank 241-SX-108 auger sampling and analysis plan

Tank characterization report for single shell tank 241-SX-108

“…The requirements of the three data quality objectives (DQOs) were integrated by the Tank 241-a-108 Auger Sampling and Analysis Plan (Eggers 1995a). …”

“…Analyses required by the historical DQO included bulk density, energetics, and moisture content, in addition to metal concentrations by inductively coupled plasma (ICP), anion concentrations by ion chromatography spectroscopy (IC), total organic carbon (TOC) by persulfate and coulometry, uranium by phosphorescence, and total beta analysis (Eggers 1995a). Bulk density measurements were not carried out, because the sample material was very dry and flighty and because some individual samples produced radiological dose rates exceeding 90 Whr.…”

“…Auger samples were taken to satisfy the requirements of the Tank Safety Screening Data Quality Objective (Dukelow et al 1995), the Strategy for Sampling Hanford Site Tank Wastes for Developmem of Disposal Technology (Kupfer et al 1995), and the Historical Model Evaluation Data Requirements (Simpson and McCain 1995). The sampling and analyses were performed in accordance with the Tank 241-SX-IO8 Auger Sampling and Analysis Plan (Eggers 1995a). Further discussions of the sampling and analysis procedures can be found in the Tank Characteriulrion Reference Gui& (DeLorenZo et al 1994).…”

“…The required analyses for the safety screening DQO were exotherm energy by DSC, moisture content by TGA, and fissile content by total alpha activity analyses. (Eggers 1995a Overall means were calculated for all analytes with the exception of DSC. The overall mean for a given analyte was determined by fmt averaging each of the sample and duplicate pairs to obtain a sample mean.…”

“…All the pertinent QC tests were conducted on the 1995 auger samples, allowing a full assessment regarding the accuracy and precision of the data. The SAP (Eggers 1995a) established the specific criteria for the primary and secondary a n a l p required by the safety screening and historical DQOs, whereas the opportunistic analytes were governed by the laboratory criteria (DOE 1995). Quality control results outside the specified criteria for the primary and secondary a n a l p are identified by footnotes in the Appendix A tables.…”