Management, treatment and disposal of mixed waste at the Weldon Spring Site Remedial Action Project
The Weldon Spring Uranium Feed Materials Plant processed uranium ore from 1958 until 1966. In July 1987, the Weldon Spring Quarry was placed on the Environmental Protection Agency's (EPA's) National Priorities List (NPL) with the chemical plant and raffinate pits following in March 1989. In 1986 consolidation of the waste streams was initiated with quantitative analysis and consolidation being performed on-site. Once consolidation was completed the waste streams were placed into proper storage. The storage areas on-site include two Resource Conservation and Recovery Act (RCRA) storage facilities, an asbestos storage facility and numerous storage areas for unregulated materials. A site treatment plan was developed in accordance with the Federal Facility Compliance Act. Treatment of the mixed waste inventory was completed in October 1998. The majority of the waste will be placed in the 45 acre RCRA designed disposal cell which is being constructed on the Weldon Spring Site Remedial Action Project (WSSRAP) proper. The cell will contain the non-regulated waste, the solid Polychlorinated Biphenyls (PCB) contaminated waste, the treated hazardous waste and the treated non-hazardous waste. A few of the waste streams, primarily the PCB contaminated liquids, were treated and disposed of at an off-site location. WSSRAP has overcome many unique issues in the characterization, management, treatment and disposal of mixed waste. The fact that the majority of the waste is mixed and mixed/Toxic Substance Control Act (TSCA) regulated opens a new area of treatment, storage and disposal issues. The waste does not lend itself to some of the traditional methods of treatment and disposal. WSSRAP has been successful, as of November 1998 approximately 800,000 cubic yards of waste have been disposed of in the disposal cell on-site and over 30,000 gallons of waste has been disposed of at off-site facilities.
- Research Organization:
- Jacobs Engineering Group, St. Charles, MO (US)
- OSTI ID:
- 20003327
- Report Number(s):
- CONF-990608-; TRN: US0000360
- Resource Relation:
- Conference: Air and Waste 92nd Annual Meeting and Exhibition, St. Louis, MO (US), 06/20/1999--06/24/1999; Other Information: 1 CD-ROM. Operating Systems: Windows 3.1, '95, '98 and NT; Macintosh; and UNIX; PBD: 1999; Related Information: In: Air and Waste 92nd annual meeting and exhibition proceedings, [9500] pages.
- Country of Publication:
- United States
- Language:
- English
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