Weldon Spring Raffinate Pits
Location
585-699 Mo 94
St. Charles, Missouri
In 1955 the U.S. Department of the Army (Army) transferred 217 acres of what had been the Weldon Springs Ordnance Works to the U.S. Atomic Energy Commission (AEC) to construct a uranium feed materials plant. In addition to the plant, the AEC also constructed four raffinate pits adjacent to the plant between 1958 and 1964. The pits were used as collection points and settling basins for chemical and radioactive waste streams coming from the plant.
After closing the plant (including the associated raffinate pits) in December 1966, the AEC transferred the land back to the Army, but retained ownership and control of the wastes in the raffinate pits. On October 1, 1985, the land was retransferred from the Army back to the DOE, which was given responsibility for remediation of the pits.
Surface decontamination of the pits was completed in October 2002.
Type of Facility
- Department of Energy
Covered by EEOICPA
- Part B and Part E
EEOICPA Covered Years
- 1955-1966
- 1967-2002 (remediation)
Contractors
- 1957–1966 Mallinckrodt Chemical Company
- 1966–1981 National Lead of Ohio
- 1981–1985 Bechtel National, Incorporated
- 1986–2002 M-K Ferguson Company and Jacobs Engineering Group
DOE
- Comprehensive Epidemiologic Data Resource Analytic Data File Sets-Mallinckrodt Chemical Works Cohort Mortality Study of White Males
- Comprehensive Epidemiologic Data Resource Analytic Data File Sets-Case-Control Study of Respiratory Cancer at Uranium Facilities at Tennessee Eastman Corporation (TEC) and Y-12 facilities in Oak Ridge, Mallinckrodt Chemical Works (MCW) in St. Louis and Weldon Springs, Missouri, and the Feed Materials Production Center (FMPC) in Fernald, Ohio
- DOE Facility List by Name
- Legacy Management
- Comprehensive Environmental Response, Compensation, and Liability (CERCLA)
DOL
- Tracking your DOL Claim Status
- Advisory Board on Toxic Substances and Worker Health
- Ombudsman’s Office
- Resource Center
- DOL Case and Claim Statistics
- Site Exposure Matrix
EPA
NIOSH
- FAQs About Your Case
- Advisory Board on Radiation and Worker Health
- AWE Site Wide Documents
- Work Site Information
Other Resources
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