LM hosts second annual meeting series for local municipalities and the public
August 10, 2026
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The U.S. Department of Energy Office of Legacy Management (LM) hosted a series of meetings and a tour in June 2026 to highlight the Calendar Year 2025 Rocky Flats Site, Colorado, Annual Report, which is produced to fulfill regulatory requirements.
Highlights of the annual report included the following:
- Surface water monitoring — There were no reportable conditions at the Points of Compliance in 2025, which is where surface water ultimately leaves the site. There was one reportable condition within the site at a Point of Evaluation, GS10, in 2025, which returned to below reportable condition levels the next month. A reportable condition occurs when a surface water standard is exceeded, per the Rock Flats Legacy Management Agreement, at surface water and groundwater monitoring locations.
- Groundwater monitoring — Results from wells scheduled for sampling in 2025 were generally consistent with data from previous years.
- Site operations — The 2025 annual site inspection revealed no violations of institutional or physical controls, and no significant subsidence or erosion. A new uranium treatment component was installed and began operating in 2025.
- Ecological monitoring — No adverse biological conditions were observed in 2025.
LM Rocky Flats Site Manager Michelle Franke kicked off the annual report presentation on June 16 at the Legacy Management Operations Center in Westminster, Colorado. Twenty-four elected officials and municipal staff — representing Arvada, Boulder, Northglenn, Westminster, Boulder and Jefferson Counties, the city and county of Broomfield, U.S. Fish and Wildlife Service, and regulatory agencies —heard about the site’s history, LM’s role at the site, and site monitoring and maintenance information from 2025. Rocky Flats Site staff discussed surface water monitoring, groundwater monitoring, site operations, and ecological monitoring. Attendees were invited to ask questions throughout the presentation.
On June 18, the Rocky Flats site team hosted a tour of the Rocky Flats Site for regulatory agencies and 17 local elected officials and municipal staff representing Arvada, Boulder, Northglenn, and Westminster, as well as Jefferson County, and the city and county of Broomfield. Tour participants saw various locations at the site and asked questions. They learned about the site history, the former infrastructure at the site, and LM’s current mission. The group viewed the new uranium treatment component from an overlook and discussed the process of uranium and nitrate treatment at the Solar Ponds Plume Treatment System. LMSP Senior Hydrogeologist John Boylan and LMSP Environmental Scientist Caleb Artz also discussed groundwater and surface water monitoring and how groundwater is treated to protect surface water. LMSP Ecologist Karin McShea showed the group areas that were seeded in 2025 and discussed revegetation and wildlife at the site. The group viewed the location of the remediated former 903 Pad, where drums leaked and contaminated the soil in the 1950s-1960s. Tour stops included South Walnut Creek, North Walnut Creek, Woman Creek, and South Interceptor Ditch, where the group discussed surface water monitoring at two Points of Compliance (Woman Creek Point of Compliance and Walnut Creek Point of Compliance) and Points of Evaluation, including GS10.
The final part of the annual report briefing was a live virtual meeting for the community, held the evening of June 25. Franke and the rest of the Rocky Flats Site team shared the annual report presentation, answered questions, and heard public comment.
“As part of LM’s mission and the Rocky Flats Site Public Involvement Plan, we want to ensure the community is regularly updated on LM’s long-term surveillance and maintenance at the site,” said Franke. “This is our second year hosting these annual meetings, and we appreciate the opportunity to engage with the communities and share information.”
A full copy of the 2025 annual report, the 2025 virtual meeting, and the 2025 annual report presentation, can be found on the Rocky Flats website. Questions about the annual report or any other Rocky Flats Site topics can be emailed to the site team at RFInfo@lm.doe.gov.
