Final report for tank 241-B-203, push mode cores 115, 120 and 122

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Description

This is the final laboratory report for tank 241-B-203 (B-203), cores 115, 120 and 122. Two fourteen-segment and one eleven-segment push-mode core samples from tank B-203 and a field blank sample were received at the 222-S Laboratory. Cores 115 (11 segments) and 120 (14 segments) were obtained from riser 2 and core 122 (14 segments) was obtained from riser 7. Core 115 was archived due to poor sample recovery and not analyzed (with an exception of liner liquid). The other two core samples underwent safety screening analyses in accordance with the sampling and analysis plan, differential scanning calorimetry (DSC), thermogravimetric ... continued below

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1345 p.

Creation Information

Jo, J. April 8, 1996.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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  • Fluor Daniel Hanford, Inc.
    Publisher Info: Fluor Daniel Hanford, Inc., Richland, WA (United States)
    Place of Publication: Richland, Washington

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Description

This is the final laboratory report for tank 241-B-203 (B-203), cores 115, 120 and 122. Two fourteen-segment and one eleven-segment push-mode core samples from tank B-203 and a field blank sample were received at the 222-S Laboratory. Cores 115 (11 segments) and 120 (14 segments) were obtained from riser 2 and core 122 (14 segments) was obtained from riser 7. Core 115 was archived due to poor sample recovery and not analyzed (with an exception of liner liquid). The other two core samples underwent safety screening analyses in accordance with the sampling and analysis plan, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), total alpha analysis, and bulk density measurements. Bromide analysis by ion chromatography (IC) and lithium analysis by inductively coupled plasma atomic emission spectroscopy (ICP) were performed to determine if the samples were contaminated with any lithium bromide solution that may have been used during sampling. Total organic carbon (TOC) and cyanide (CN) analyses were completed for two samples with high exotherms. In addition to the core sample analysis, the tank headspace flammability was measured prior to core sampling as required by the SAP and Safety Screening DQO. None of the data indicate that the tank is unsafe when compared to the criteria in the Safety Screening Data Quality Objective. The tank has a high moisture content (approximately 75%). Two samples exceeded the DSC notification limit. However, re-analysis of these samples could not reproduce the same results (no exotherms detected). Also, secondary TOC and CN analyses on these samples indicated negligible fuel content. The one-sided 95-percent confidence intervals for total alpha results are well below the notification limit. Furthermore, the vapor in the tank B-203 dome space is far below the 25% lower flammability limit (LFL) stated in the SAP. Therefore, the results show that this tank may be considered safe. Water with a lithium bromide tracer, was used to flush the drill bit (when plugged) during the sampling of this tank. However, no mention of water usage was recorded on the chain of custody forms which accompanied the samples to the laboratory, and consequently no lithium bromide solution blank was taken. The lithium bromide solution blank data from the tank 241-B-204 sampling event was used for comparison. The results indicates very small amounts of contamination (less than 2 percent) in the samples by the lithium bromide solution. Therefore, no adjustments were made for the TGA results.

Physical Description

1345 p.

Notes

INIS; OSTI as DE99050378

Source

  • Other Information: PBD: 8 Apr 1996

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  • Other: DE99050378
  • Report No.: WHC-SD-WM-DP--169-Rev.1
  • Grant Number: AC06-96RL13200
  • DOI: 10.2172/362377 | External Link
  • Office of Scientific & Technical Information Report Number: 362377
  • Archival Resource Key: ark:/67531/metadc675548

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • April 8, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

Description Last Updated

  • June 13, 2016, 7:32 p.m.

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Jo, J. Final report for tank 241-B-203, push mode cores 115, 120 and 122, report, April 8, 1996; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc675548/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.