Silos
| Project Code: | OH-FN-07 |
| Problem Areas: | Remedial Action (Primary) Health / Ecology / Risk |
| Life-Cycle Cost in 2007+: | $74,000,000 |
| DOE Project Manager: | Nina Akgunduz, 513-648-3110, nina.akgunduz@fernald.gov |
| Contractor Manager: | Don Paine, 513-648-5310, donald.paine@fernald.gov |
| For More Information: | http://www.em.doe.gov/closure/pbs/ohp245.html |
Maximum Public, Worker, and Environmental Risks in the year 2007 and beyond:
| Public: Medium | Worker: Medium | Environment: High |
Technical Approach Provided by Project Manager:
-On July 22, 1997, DOE and EPA agreed to settle the informal dispute with a path forward establishing four new regulatory, enforcement milestones. Rebaseline to reflect the major scope and schedule changes has been approved for FY 98. Re-evaluation of treatment technologies for treatment of Silos 1 & 2 material is being conducted through multiple technology, multiple vendor proof-of-principles contracts and updating the current Feasibility Studies/Proposed Plan and ROD Amendment. -Technology Needs: The following prioritized needs will be addressed: OH-F002 - Real-time personal alpha monitor to provide a rapid personnel monitoring device for alpha contamination from radon. LANL completed initial development. FEMP plans to fund some follow-on development, but may require OST support of follow-on work at LANL. Waste retrieval and treatment technologies are addressed by issuing Request for Proposals to potential vendors who have the technical expertise and proven technologies to implement on-site. -The need for hydraulic/rheology information for K-65 feed slurry (OH-F007) is being addressed through a subcontract with Florida International University. -There remains a need for a remote controlled vehicle-based manipulator (OH-F011). This need is to potentially assist in the removal of material from the Silos, is being addressed by the Houdini development sponsored by the Robotics cross-cutting area. Information on Houdini will be provided to all potential bidders of Waste Retrieval contract for consideration. -There is a need for a method to stabilize the K-65 material, from Silos 1 and 2. This need (OH-F032) is being addressed by a program which includes support from the Mixed Waste Focus Area. Information from this program will be provided to potential bidders of Silos 1 & 2 remediation contract for consideration. -Because of the potential approach to remove wastes from Silo-3 as a dry material, a need for information on the retrieval and collection of super-fine particles produced by pneumatic means (OH-F029) has been identified. -The current approach is to convert the material to a slurry and retrieve into a transfer tank area. The requirement for information on (OH-F030) the ability of a water layer to restrict radon diffusion is necessary for design of radon-treatment and containment systems. This information will be provided to all potential bidders of the accelerated waste retrieval contract for consideration. -Future major activities are aligned more in series rather than in parallel (lessons learned from the Vitrification Pilot Plant) to reduce up-front risks and bottlenecks and increase operational efficiencies for potential schedule recovery. There are five major activities planned for OU4: 1) Waste Retrieval/Transfer Tanks/Radon Control System, 2) Silos 1 and 2 Multiple Technology-Multiple Vendor Proof of Principle Testing, 3) Revise FS/PP and ROD Amendment, 4) Silos 1 and 2 Final Remediation Turnkey Contract, and 5) Silo 3 remediation.Post 2006 Project Scope Provided by Project Manager:
Followup activities for FY2006 through FY2008 include finalization of treatment and disposal of Silos 1 and 2 wastes per the Amended Operable Unit 4 Record of Decision as consistent with our existing baseline. It is planned that a sitewide PBS will be added to the existing 12 PBSs in the FY2000 submittal. This new sitewide PBS will include all of the post-closure (FY2009 - FY2038) activities which are not currently part of our existing baseline. These activities will include maintenance and standby of the Advanced Waste Water Treatment Facility (AWWT) to ensure full containment and capture of any residual contaminated groundwater plumes, monitoring and maintenance activities, D&D of the AWWT and related onsite and offsite pipelines and wells and related soils, and either shipment of this material offsite or disposal in Cell 8 of the OSDF.Project End State Provided by Project Manager:
Completion of stabilization activities and removal of all facilities. All stabilized material from the Silos, equipment, and debris not meeting OSDF WAC will be packaged and shipped to an appropriately permitted disposal facility. All facilities, equipment, debris, concrete silos, soils meeting OSDF WAC will be disposed of in OSDF otherwise, off-site at an appropriately permitted disposal facility.The full list of science research awards that have the potential to address projects such as this one, which deals with Remedial Action and Health / Ecology / Risk problems, are listed in the Index of Research Awards by Environmental Management Problem Area, in the back of this appendix, under the headings "Remedial Action and Health / Ecology / Risk".