SCFA lead lab technical assistance review of the Pit 7 Complex source containment

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On January 29-30, 2001 a technical assistance team (TAT) met with the Pit 7 project team at Lawrence Livermore National Laboratory (LLNL) to review technologies being evaluated for remediation in the Site 300 Pit 7 Complex and the process for selecting these technologies. Specifically, the project team presented the TAT with a core need to identify technically and economically practicable technologies and methods to stabilize, contain, or control the tritium and uranium in the source areas at the Pits 3 and 5 landfill area to prevent further releases of these contaminants to groundwater and the migration of tritiated and uranium-contaminated ... continued below

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34 pages; OS: MAC OS 10.2

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Eaton, D.; Janeday, D.; Woodward, D.; Imrich, J.; Evans, J.; Morris, M. et al. January 29, 2001.

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Description

On January 29-30, 2001 a technical assistance team (TAT) met with the Pit 7 project team at Lawrence Livermore National Laboratory (LLNL) to review technologies being evaluated for remediation in the Site 300 Pit 7 Complex and the process for selecting these technologies. Specifically, the project team presented the TAT with a core need to identify technically and economically practicable technologies and methods to stabilize, contain, or control the tritium and uranium in the source areas at the Pits 3 and 5 landfill area to prevent further releases of these contaminants to groundwater and the migration of tritiated and uranium-contaminated groundwater. The approaches and needs for the systems surrounding the landfills were also presented and discussed. With encouragement from the project team, the TAT expanded its focus to include additional site characterization, a water balance model, and computational models. The TAT was comprised of leading technical and regulatory experts from around the country and was assembled by SCFA's Lead Lab in response to a technical assistance request from John Ziagos, Project Manager for the Pit 7 Area (Technical Assistance Request: LLNL No.1). A list of the TAT members is included below and contact information the TAT members and site participants is in Appendix B. To familiarize the TAT assistance team with Pit 7 Complex issues, the project team gave a presentation outlining the site geology, contaminant hydrogeology, land-use issues, stakeholder concerns, regulatory requirements, groundwater flow and transport modeling efforts, pit source characterization efforts, and remedial options. Time for clarification and questions between the TAT and the site team was integrated into the presentation schedule. On the morning of the second day, the TAT reconvened with the site team and John Evans of the TAT presented information about a helium soil gas survey method that could potentially be used to locate and characterize tritium hot spots in Pits 3 and 5. Following the presentation, the TAT gathered independently to identify issues that are critical to remedy selection and to list questions or information gaps that the site is trying to resolve.

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34 pages; OS: MAC OS 10.2

Notes

OSTI as DE00816057

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  • Other Information: PBD: 29 Jan 2001

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  • Report No.: LBNL--47546
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/816057 | External Link
  • Office of Scientific & Technical Information Report Number: 816057
  • Archival Resource Key: ark:/67531/metadc734951

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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.

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  • January 29, 2001

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • April 20, 2016, 1:07 p.m.

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Eaton, D.; Janeday, D.; Woodward, D.; Imrich, J.; Evans, J.; Morris, M. et al. SCFA lead lab technical assistance review of the Pit 7 Complex source containment, report, January 29, 2001; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc734951/: accessed December 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.