Topical Workshops

Through topical workshops, the Groundwater Remediation Project provides individuals a forum to allow the exchange of information and ideas with a broad group.

Conceptual Model Development and Reactive Transport Modeling for the 300 Area Uranium Plume in 300-FF-5

This meeting was conducted to update results of scientific investigations of samples from the 300 Area uranium plume and to discuss plans for reactive transport modeling. This modeling is being done to assist with evaluation of alternate remediation approaches. The May 10 & 11, 2004 meeting included participation from the U.S. Department of Energy (DOE), Environmental Protection Agency (EPA), Washington State Department of Ecology, DOE National Laboratories, the U.S. Geological Survey, and Hanford stakeholders.

• Meeting Agenda (PDF - 25 KB)
• Motivation and goal in light of RIFS schedule (PDF - 31 KB)
• Conceptual Model Development and Reactive Transport Modeling for the 300 Area Uranium Plume in 300-FF-5 (PDF - 12 KB)
• Reactive Transport Modeling of U(VI) Migration at the Naturita Site (PDF - 1.86 MB)
• Waste disposal history of the 300 Area process ponds (PDF - 3.44 MB)
• Hydrology and current status of the 300 Area U plume (PDF - 1.90 MB)
• Recent sampling and characterization of 300 A U plume sediments and groundwaters (PDF - 2.96 MB)
• Electron and X-ray microscopy of process pond and vadose zone sediments (PDF - 3.55 MB)
• Synchrotron X-ray measurements of U valence and speciation (PDF - 805 KB)
• Laser induced fluorescence spectroscopic studies of sorbed U(VI) speciation (PDF - 1.48 MB)
• Reactive transport processes in Hanford 300 A sediments (PDF - 1.10 MB)
• Batch measurements of desorption/adsorption from vadose zone and aquifer sediments (PDF - 2.50 MB)
• Modeling of uranium sorption/desorption with advection (PDF - 1.49 MB)
• Labile U(VI) and progress toward a generalized surface complexation model (PDF - 537 KB)
• Preliminary modeling of the 300 Area U(VI) plume: Three-dimensional modeling of variably saturated flow and uranium transport in the 300 Area (PDF - 3.59 MB)
• Objectives and tentative scientific approach for additional reactive transport modeling of the 300 Area plume (PDF - 1.97 MB)

The 618-10 and -11 Burial Grounds Remedial Design Technical Workshop

The 618-10 and 618-11 Burial Grounds Remedial Design Technical Workshop gathered technical experts from several U.S. Department of Energy (DOE) sites, academia, and industry who have experience in dealing with buried waste containing transuranic (TRU) elements. The workshop, held on June 10-12, 2003, in Richland, Washington, was designed to share lessons learned and identify issues and potential solutions for waste characterization, excavation methods, stabilization techniques for removal and handling, retrievability and segregation, packaging and transportation, health and safety issues, treatment requirements, final disposal, and compliance with regulatory requirements.

• WMP-17684, Rev. 0 -- 618-10 and 618-11 Burial Ground Remedial Design Technical Workshop Summary Report (PDF - 985 KB)
• Presentation Materials
  • Workshop Briefing (PDF - 1.17 MB)
  • Sharing Lessons Learned (PDF - 101 KB)
  • INEEL Pit 9 Lessons Learned (PDF - 5.28 MB)
    • INEEL GEM Demo (ASF movie - 9.36 MB)
  • Hanford 200 E & W and TRU Waste Pilot Retrieval (PDF - 1.38 MB)
  • 218-W-4C and 218-W-4B Suspect TRU Retrieval Project (PDF - 184 KB)
  • 618-4 and 618-5 Lessons Learned (PDF - 1.37 MB)
    • 618-4 and 618-5 movie (AVI movie - 91.1 MB)
  • ORNL 22-Trench Area TRU Waste Retrieval (PDF - 279 KB)
  • WIPP Lessons Learned (PDF - 2.05 MB)
  • Energy Northwest Perspective (PDF - 113 KB)

For questions or comments, please send a message to Carl Connell.