
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).
News
- 08/26/2022 - Rocky Flats CERCLA Five-Year Review Completion Notice
- 09/30/2021 - Rocky Flats CERCLA Five-Year Review Notice
- 09/24/2021 - Rocky Flats, Las Colonias Win EPA Awards for Excellence in Site Reuse
- 10/05/2020 - A Look Back: Almost 30 Years of Legacy
- 09/30/2020 - Rocky Flats Site Original Landfill Stabilized
- 08/07/2020 - Soil Sample Plutonium Results Near the Rocky Flats Site Summarized by State Regulators
Videos
Rocky Flats Site: Overview
Rocky Flats: Plutonium
Rocky Flats Site: Air Monitoring
Site Documents
- Site Documents Page
- Fact Sheet
- Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Administrative Record Database
- Presentation: Overview of the Third Quarter 2022 Activities for the Rocky Flats Site, Colorado (February 6, 2023)
- Presentation: LM Climate Adaption and Resilience Programs and Activities (May 2021)
- Presentation: Rocky Flats Site Climate Change Resilience (May 2021)
Site Links
- Community Involvement
- Contact Records
- Corrective Action Decision/Record of Decision for Rocky Flats Plant (USDOE) Peripheral Operable Unit and Central Operable Unit
- Historic American Engineering Record and National Register Listing
- Key Documents
- RCRA Facility Investigation – Remedial Investigation/Corrective Measures Study – Feasibility Study Report for the Rocky Flats Environmental Technology Site (RI/FS/CRA)
- Rocky Flats Benefits Administration
- Rocky Flats Closure Legacy Report
- Rocky Flats History
- Rocky Flats Site Mapping and Monitoring
- Surface Water Configuration Adaptive Management Plan
- Surface Water Configuration Environmental Assessment
- Wildland Fire Information
Contact Us
Mailing Address:
DOE Office of Legacy Management Rocky Flats Site
11035 Dover St., Suite 600
Westminster, CO 80021-5587
Email: rfinfo@LM.doe.gov
Phone: (720) 880-4350