Grand Junction Information

Location

Grand Junction, Colorado

The Manhattan Engineer District (MED) constructed a uranium refinery (mill) to produce uranium concentrate from “green sludge here in 1943 which it operated through 1946.” This location also served as the headquarters for the U.S. Atomic Energy Commission’s (AEC) uranium-procurement program from 1947 through 1970 and was known as the Grand Junction Office. One of the principal functions of the site was the receipt, sampling, and analysis of uranium and vanadium concentrates from the numerous ore-processing operations in the western United States. In 1951, the AEC constructed a concentrate sampling plant, assay laboratory, and two ore-testing pilot plant mills at this facility. Furthermore, the AEC established a sampling and assaying station for the receipt of uranium ores at Grand Junction. Concentrates produced by mills were delivered in steel drums to Grand Junction, where they were received, weighed, sampled, and assayed as the basis for payment to the mills under the terms of their respective contracts.

On September 30, 2001, the Department of Energy transferred ownership of the Grand Junction property to the Riverview Technology Corporation. The DOE, however, continues to lease portions of the site and provides some on-going remediation services as well as Long-Term Surveillance and Maintenance at the site.

Alternative Names

  • Grand Junction Operations Office
  • Grand Junction Uranium Mill
  • Grand Junction Refinery
  • Grand Junction Concentrate Plant
  • Grand Junction Pilot Plants
  • Grand Junction Ore Buying Station

Type of Facility

  • Department of Energy

Covered by EEOICPA

  • Part B and Part E

EEOICPA Covered Years

  • August 1943-October 2001
  • November 2001-Present (remediation)

Contractors

  • 1956-1971 Lucius Pitkin, Inc. (Ore Buying Station, sampling, assaying)
  • 1954-1958 National Lead Company (Pilot plant)
  • 1953-1954 American Cyanamid Company (Pilot Plant)
  • 1948-1955 American Smelting and Refining Company (Ore Buying Station, sampling, assaying)
  • 1948 Ledoux and Company (Concentrate Plant)
  • 1943-1946 U.S. Vanadium Corporation (Uranium processing Mill)
  • 2001-2002 MACTEC Environmental Restoration Services (remediation)
  • 2001-2002 WASTREN, Inc. (remediation)
  • 2002-Present S. M. Stoller Corporation (remediation)

Contract Numbers

  • DE-AC07-76GJ01664
  • AC13-76GJ01664

DOE

DOL

NIOSH

  • FAQs About Your Case
  • Advisory Board on Radiation and Worker Health
  • NIOSH Case Statistics
  • Special Exposure Cohort Status Table
    • Petition 175: “All employees of the Department of Energy, its predecessor agencies, and its contractors and subcontractors who worked at the Grand Junction Operations Office from March 23, 1943 through January 31, 1975, for a number of work days aggregating at least 250 work days, occurring either solely under this employment or in combination with work days within the parameters established for one or more other classes of employees in the SEC.”
    • Petition 175: “All employees of the Department of Energy, its predecessor agencies, and its contractors and subcontractors who worked at the Grand Junction Facilities site in Grand Junction, Colorado, during the period from February 1, 1975, through December 31, 1985, for a number of work days aggregating at least 250 work days, occurring either solely under this employment or in combination with work days within the parameters established for one or more other classes of employees in the Special Exposure Cohort.”
  • Work Site Information

Other Resources

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