Feasibility study of tank leakage mitigation using subsurface barriers
- Ensearch Environmental, Inc. (United States)
- Bovay Northwest, Inc., Richland, WA (United States)
- Westinghouse Hanford Co., Richland, WA (United States)
The US Department of Energy (DOE) has established the Tank Waste Remediation System (TWRS) to satisfy manage and dispose of the waste currently stored in the underground storage tanks. The retrieval element of TWRS includes a work scope to develop subsurface impermeable barriers beneath SSTs. The barriers could serve as a means to contain leakage that may result from waste retrieval operations and could also support site closure activities by facilitating cleanup. Three types of subsurface barrier systems have emerged for further consideration: (1) chemical grout, (2) freeze walls, and (3) desiccant, represented in this feasibility study as a circulating air barrier. This report contains analyses of the costs and relative risks associated with combinations retrieval technologies and barrier technologies that from 14 alternatives. Eight of the alternatives include the use of subsurface barriers; the remaining six nonbarrier alternative are included in order to compare the costs, relative risks and other values of retrieval with subsurface barriers. Each alternative includes various combinations of technologies that can impact the risks associated with future contamination of the groundwater beneath the Hanford Site to varying degrees. Other potential risks associated with these alternatives, such as those related to accidents and airborne contamination resulting from retrieval and barrier emplacement operations, are not quantitatively evaluated in this report.
- Research Organization:
- Westinghouse Hanford Co., Richland, WA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-87RL10930
- OSTI ID:
- 10189505
- Report Number(s):
- WHC-SD-WM-ES-300; ON: DE95001511; BR: 35AF11201/35AF11202; TRN: 94:021193
- Resource Relation:
- Other Information: PBD: 21 Sep 1994
- Country of Publication:
- United States
- Language:
- English
Similar Records
Feasibility study of tank leakage mitigation using subsurface barriers. Revision 1
Functions and requirements for subsurface barriers used in support of single-shell tank waste retrieval
Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
HANFORD RESERVATION
STORAGE FACILITIES
REMEDIAL ACTION
RADIOACTIVE WASTES
WASTE RETRIEVAL
CONTAINMENT SYSTEMS
COST BENEFIT ANALYSIS
COST ESTIMATION
RISK ASSESSMENT
COMPARATIVE EVALUATIONS
PERFORMANCE
GROUND WATER
CONTAMINATION
HEALTH HAZARDS
COMPILED DATA
FEASIBILITY STUDIES
054000
052000
HEALTH AND SAFETY
WASTE MANAGEMENT