ACCELERATED PILOT PROJECT FOR U CANYON DEMOLITION
At the U.S. Department of Energy's Hanford Site in southeast Washington State, CH2M HILL Plateau Remediation Company (CH2M HILL) is underway on a first-of-a-kind project with the decommissioning and demolition of the U Canyon. Following the U.S. Environmental Protection Agency's Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) Record of Decision for the final remediation of the canyon, CH2M HILL is combining old and new technology and techniques to prepare U Canyon for demolition. The selected remedial action called first for consolidating and grouting equipment currently in the canyon into lower levels of the plant (openings called cells), after which the cell galleries, hot pipe trench, ventilation tunnel, drains and other voids below the operating deck and crane-way deck levels will be filled with approximately 20,000 cubic yards of grout and the canyon roof and walls demolished down to the approximate level of the canyon deck. The remaining canyon structure will then be buried beneath an engineered barrier designed to control potential contaminant migration for a 500-year life. Methods and lessons learned from this project will set the stage for the future demolition of Hanford's four other canyon-type processing facilities.
- Research Organization:
- Hanford Site (HNF), Richland, WA (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Environmental Management (EM)
- DOE Contract Number:
- DE-AC06-08RL14788
- OSTI ID:
- 1004615
- Report Number(s):
- CHPRC-01191-FP Rev 0; TRN: US201103%%409
- Resource Relation:
- Conference: WM2011 WASTE MANAGEMENT CONFERENCE DOE 03/07/2011 THRU 03/11/2011 PHOENIX AZ
- Country of Publication:
- United States
- Language:
- English
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