Engineering assessment of low-level liquid waste disposal caisson locations at the 618-11 Burial Grounds
- Westinghouse Hanford Co., Richland, WA (United States)
- Pacific Northwest Lab., Richland, WA (United States)
Rockwell Hanford Operations is currently involved in an extensive effort to perform interim ground surface stabilization activities at retired low-level waste burial grounds located at the Hanford Site, Richland, Washington. The principal objective of these activities is to promote increased occupational and radiological safety at burial grounds. Interim stabilization activities include: (1) load testing (traversing burial ground surfaces with heavy equipment to promote incipient collapse of void spaces within the disposal structure and overburden), (2) barrier placement (placement of a {ge} 0.6 m soil barrier over existing overburden), and (3) revegetation (establishment of shallow rooted vegetation on the barrier to mitigate deep rooted plant growth and to reduce erosion). Low-level waste disposal caissons were used in 300 Area Burial Grounds as internment structures for containerized liquid wastes. These caissons, by virtue of their contents, design and methods of closure, require long-term performance evaluation. As an initial activity to evaluate long-term performance, the accurate location of these structures is required. This topical report summarizes engineering activities used to locate caissons in the subsurface environment at the Burial Ground. Activities were conducted to locate caissons during surface stabilization activities. The surface locations were marked, photographed, and recorded on an as built engineering drawing. The recorded location of these caissons will augment long-term observations of confinement structure and engineered surface barrier performance. In addition, accurate caisson location will minimize occupational risk during monitoring and observation activities periodically conducted at the burial ground.
- Research Organization:
- Westinghouse Hanford Co., Richland, WA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-87RL10930
- OSTI ID:
- 10109177
- Report Number(s):
- WHC-MR-0400; ON: DE94004495; BR: 35AF11201/35AF11202; TRN: AHC29401%%15
- Resource Relation:
- Other Information: PBD: Jun 1982
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
HANFORD RESERVATION
REMEDIAL ACTION
CONTAINERS
DETECTION
RADIOACTIVE WASTE FACILITIES
MAPPING
LOW-LEVEL RADIOACTIVE WASTES
UNDERGROUND DISPOSAL
STABILIZATION
MONITORING
054000
052000
HEALTH AND SAFETY
WASTE MANAGEMENT