Portsmouth Remedial Action
| Project Code: | OR-46301 |
| Problem Areas: | Remedial Action (Primary) Health / Ecology / Risk |
| Life-Cycle Cost in 2007+: | $403,000,000 |
| DOE Project Manager: | Robert C. Sleeman, 423-576-0715 |
| Contractor Manager: | T. W. Morris, 423-241-4921, morristw@ornl.gov |
| For More Information: | http://www.em.doe.gov/closure/pbs/orp75.html |
Maximum Public, Worker, and Environmental Risks in the year 2007 and beyond:
| Public: Medium | Worker: High | Environment: High |
Technical Approach Provided by Project Manager:
The Portsmouth Gaseous Diffusion Plant is divided into four cleanup areas called quadrants based on groundwater flow direction. The tactics for completing remediation fro each quadrant will be as follows: -removed well-defined sources of contamination; -consolidate and integrate remedial actions, corrective measures, and RCRA closures for solid waste management units and solid waste management unit groups that have common contaminant sources or interrelated groundwater contaminant plumes; -use risk-based closure criteria rather than "clean" closure criteria (where practical); and -use the results of risk analyses to establish cleanup levels and the sequence of cleanup efforts. In general, cleanup will be in accordance with decisions reached under the RCRA Corrective Action process for the site, in compliance with both RCRA and CERCLA regulations. Under that process, a Corrective Measures Study will develop cleanup alternatives for each site which requires action. The preferred alternative will then be selected by the regulators for Corrective Measures Implementation. Remediation technologies will be selected that satisfy remediation goals, are technically feasible, and minimize the life cycle cost for the project. Remediation technologies are listed below in decreasing order or preference: In-situ treatment with the emphasis on waste minimization Waste isolation via multilayer cap, subsurface barriers, etc. Removal action with treatment/disposal of the waste. In addition, other technologies will be considered, pending funding and future technological considerations, such as: - In-situ vitrification of buried waste - Homogeneous advanced oxidation systems - Reactive barriers - Fluidless directional drillingPost 2006 Project Scope Provided by Project Manager:
Operation of active and passive groundwater treatment systems with deed restrictions on some sites will be ongoing through FY 2052. The Sitewide groundwater monitoring program will be ongoing through FY 2056. Long Term Surveillance and Maintenance of Remedial Action units and D&D Facilities will be ongoing until cessation of plant operations, and decontamination and decommissioning of the plantsite.Project End State Provided by Project Manager:
The plant remains operational and gaseous diffusion operations will remain at selected facilities. All Corrective Actions will have been implemented: groundwater treatment systems will be in place and operational; a waste storage facility will be established on-site to manage wastes generated by continuing operations; landfills and burial grounds will be hydrologically isolated and left in place. The following activities will be ongoing when the Project End State (steady state) is reached. Operation of active and passive groundwater treatment systems Sitewide Groundwater Monitoring Program Long Term Surveillance and Maintenance of Remedial Action units and D&D facilities.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".
The following awards were identified through systems engineering to have the potential to address the specific needs of this Project. Those research awards that may have the strongest link to this project are designated by the symbol "§".
The following tree shows how the above awards link to this project. When multiple brances are shown leading to or from a problem area, branches to the left are primary links and branches to the right are secondary.
| High Cost Project | OR-46301 - Portsmouth Remedial Action | ||||||||||||||||||||||||||||||||||
| Problem Areas Linked to OR-46301: | Remedial Action | Health / Ecology / Risk | |||||||||||||||||||||||||||||||||
| Research Awards Linked to OR-46301: Pass the mouse over an Award ID for more information, below. Click ID for more detail: |
|
|
|
||||||||||||||||||||||||||||||||
Next PBS: SP-SPRU - Separations Process Research Unit (SPRU)