Remediation at the Rocky Flats Site was conducted in accordance with Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and/or Resource Conservation and Recovery Act (RCRA) regulations. Responsibility for operation and maintenance of the Site was transferred to LM in late 2005 and requires operation and maintenance of groundwater collection and treatment systems, groundwater and surface water monitoring, routine inspection and maintenance, records-related activities, and stakeholder support. For more information about the Rocky Flats Site, view the fact sheet and the Rocky Flats History (through 2003).
The following information includes LM News articles about the Rocky Flats Site, Colorado.
- 08/26/2022 - Rocky Flats CERCLA Five-Year Review Completion Notice
- 06/24/2024 - Next Generation Workforce Tours Rocky Flats Site
- 07/02/2024 - State Advisory Committee Sees Ecosystem Management in Action at the Rocky Flats Site, Colorado
- 07/11/2024 - Community Members from Rocky Flats Stewardship Council Tour Site
- 10/24/2024 - Japanese University Students and Educators Visit Rocky Flats Site
Rocky Flats Site 2024 Annual Report Virtual Meeting Recording
- The U.S. Department of Energy Office of Legacy Management held a virtual meeting on June 17, 2025, to share information on the Rocky Flats Site, Colorado, calendar year 2024 annual report.U.S. Department of Energy Office of Legacy ManagementLearn more about the Department of Energy Office of Legacy Management’s Rocky Flats Site located in Colorado. The three-part video series documents the process of transforming Rocky Flats from a nuclear production facility into an environmental asset surrounded by a national wildlife refuge in one of the most successful radioactive and hazardous waste cleanups ever completed.U.S. Department of Energy Office of Legacy ManagementLearn more about the Department of Energy Office of Legacy Management’s Rocky Flats Site located in Colorado. The three-part video series documents the process of transforming Rocky Flats from a nuclear production facility into an environmental asset surrounded by a national wildlife refuge in one of the most successful radioactive and hazardous waste cleanups ever completed.U.S. Department of Energy Office of Legacy ManagementLearn more about the Department of Energy Office of Legacy Management’s Rocky Flats Site located in Colorado. The three-part video series documents the process of transforming Rocky Flats from a nuclear production facility into an environmental asset surrounded by a national wildlife refuge in one of the most successful radioactive and hazardous waste cleanups ever completed.U.S. Department of Energy Office of Legacy Management
- Site Documents Page
- Fact Sheet
- Rocky Flats Site Comprehensive Environmental Response, Compensation, and Liability Act
- Contact Records
- Corrective Action Decision/Record of Decision for Rocky Flats Plant (USDOE) Peripheral Operable Unit and Central Operable Unit
- RCRA Facility Investigation – Remedial Investigation/Corrective Measures Study – Feasibility Study Report for the Rocky Flats Environmental Technology Site (RI/FS/CRA)
- Quarterly and Annual Reports
- Rocky Flats Closure Legacy Report
- Rocky Flats History (through 2003)
Mailing Address:
DOE Office of Legacy Management Rocky Flats Site
11035 Dover St., Suite 600
Westminster, CO 80021-5587Email: rfinfo@LM.doe.gov
Phone: (720) 880-4350