X-231B technology demonstration for in situ treatment of contaminated soil: Contaminant characterization and three dimensional spatial modeling
Fine-textured soils and sediments contaminated by trichloroethylene (TCE) and other chlorinated organics present a serious environmental restoration challenge at US Department of Energy (DOE) sites. DOE and Martin Marietta Energy Systems, Inc. initiated a research and demonstration project at Oak Ridge National Laboratory. The goal of the project was to demonstrate a process for closure and environmental restoration of the X-231B Solid Waste Management Unit at the DOE Portsmouth Gaseous Diffusion Plant. The X-231B Unit was used from 1976 to 1983 as a land disposal site for waste oils and solvents. Silt and clay deposits beneath the unit were contaminated with volatile organic compounds and low levels of radioactive substances. The shallow groundwater was also contaminated, and some contaminants were at levels well above drinking water standards. This document begins with a summary of the subsurface physical and contaminant characteristics obtained from investigative studies conducted at the X-231B Unit prior to January 1992 (Sect. 2). This is then followed by a description of the sample collection and analysis methods used during the baseline sampling conducted in January 1992 (Sect. 3). The results of this sampling event were used to develop spatial models for VOC contaminant distribution within the X-231B Unit.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10119221
- Report Number(s):
- ORNL/TM-12258; ON: DE94006112; TRN: 94:011921
- Resource Relation:
- Other Information: DN: Environmental Sciences Division Publication No. 4170; PBD: Nov 1993
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
SOILS
REMEDIAL ACTION
SAMPLING
GROUND WATER
DECONTAMINATION
PORTSMOUTH GASEOUS DIFFUSION PLANT
ORGANIC COMPOUNDS
VOLATILE MATTER
CHLORINATED ALIPHATIC HYDROCARBONS
COMPUTERIZED SIMULATION
OFF-GAS SYSTEMS
LOW-LEVEL RADIOACTIVE WASTES
054000
052002
HEALTH AND SAFETY
WASTE DISPOSAL AND STORAGE