W. R. Grace Information
Location
Curtis Bay, Maryland

Processing of radioactive materials at W. R. Grace began in July 1955 when Rare Earths, Inc. (W.R. Grace’s predecessor) entered into a contract with the Atomic Energy Commission to extract thorium and rare earths from naturally-occurring monazite sands. In 1956, the Atomic Energy Commission contract and Rare Earths’ license to possess, transfer, and use radioactive thorium were transferred to W.R. Grace & Company. The facility where thorium processing took place (Building 23) operated until late spring of 1957, when W.R. Grace and the Atomic Energy Commission agreed to terminate the contract, effective January 31, 1958.
During the period of residual contamination, as designated by the National Institute for Occupational Safety and Health and as noted in the dates above, employees of subsequent owners and operators of this facility are also covered under the Energy Employees Occupational Illness Compensation Program Act.
Alternative Names
- Davison Chemical Corporation
- Agri-Chemicals Division
Type of Facility
- Atomic Weapons Employer
Covered by EEOICPA
- Part B
EEOICPA Covered Years
- 1955-1958
- 1959-March 1, 2011 (Residual Radiation)
DOE
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
- Approved Special Exposure Cohorts
- Circular 12-01: W.R. Grace and Company Special Exposure Cohort Class (SEC) from May 1, 1956 through January 31, 1958
NIOSH
- Tracking your NIOSH Case Status
- Advisory Board on Radiation and Worker Health
- AWE Site Wide Documents
- NIOSH Case Statistics
- Special Exposure Cohort Status Table
- Petition 182: “All Atomic Weapons Employees who worked at any building or area at the facility owned by W.R. Grace and Company in Curtis Bay, Maryland, for the operational period from May 1, 1956 through January 31, 1958, 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 included in the Special Exposure Cohort.”
Other Resources
related posts
Armco Rustless Iron and Steel Information
Location Baltimore, MarylandArmco-Rustless Iron and Steel Co. rolled eight billets of uranium for the AEC. It was a one time test of rolling. Alternative Names Armco Steel Baltimore Works Type of Facility AWE Covered by EEOICPA Part B EEOICPA Covered Years 1948 Did...