About the film

Half-Life of Memory

Release Date: TBA

HALF-LIFE OF MEMORY exposes the ongoing and incredible true story of Rocky Flats - a top-secret nuclear bomb factory, located outside of Denver, Colorado. After an extraordinary FBI and EPA raid forever halted nuclear production at Rocky Flats, residual radioactivity continues to threaten the citizens of Colorado.  


Local citizens were unaware of the bomb plant and the hazards it posed until a major plutonium fire sent a plume of smoke across the Denver Metro Area. After the fire, previously undisclosed accidents and routine releases of radioactive material were exposed. News of these events fueled large scale protests and helped ignite an international anti-nuclear movement.

Rocky Flats and the surrounding area was found to be contaminated with some of the highest levels of radioactive plutonium contamination in the world. The extraordinary FBI and EPA raid forever halted nuclear production at Rocky Flats, in 1989. The bomb plant was eventually shut down and a questionable 10-year, billion-dollar, cleanup concluded in 2005.

Today there is no visible trace of the former plant. The Denver metro area is growing ever closer to the site and a large portion of Rocky Flats has been rechristened as a national wildlife refuge. State and federal officials tout the area’s safety but many citizens, including former workers, a former FBI agent, and a county health chief, disagree.

Thousands of former Rocky Flats workers have fallen ill from radiation contamination and community members are currently working to uncover a possible link to illness in the surrounding neighborhoods. The long-term consequences of Rocky Flats on the Denver area are unknown, and decades of negligence and cover-ups by state and federal officials have left citizens questioning their safety.

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2010 - Present

America’s Great Outdoors envisioned a trail connecting the Rocky Mountain Arsenal – Two Ponds – and Rocky Flats National Wildlife Refuges to the Rocky Mountain National Park. The 83-mile path is known as the Rocky Mountain Greenway.
2012 - Present

Massive housing developments are under construction on lands contaminated with plutonium239 from Rocky Flats. The construction of Candelas, the largest and closest development to Rocky Flats, began in 2012 and is ongoing. In 2012, an activist group, Candelas Glows, formed to raise awareness about Rocky Flats and potential health risks to people moving into the area. Much of Candelas and other off-site lands were a Rocky Flats Superfund site, delisted in May 2007.
September 2013

An onslaught of rainstorms caused major flooding in Boulder County. Contamination testing monitors at Rocky Flats were overwhelmed and/or swept downstream.
2014 - 2015

The Rocky Flats Technical Group, an ad hoc citizens group of scientists and experts, along with other citizens groups and municipalities were vocal against a proposed 701 acre controlled burn at the Rocky Flats Refuge. USFWS postpones the controlled burn in January 2015. The Rocky Flats Technical Group convinced the Colorado Air Quality Control Commission in February 2015 to delay the USFWS smoke management permit.
May 2015

Another severe storm event floods Rocky Flats. One of the Landfills left in place, approximately 40 acres with depleted uranium, in the active Superfund portion of Rocky Flats slumped several feet that demonstrated topographical instability, erosion and a potential harm to human health.
October 2015

Jeff Gipe installs the Rocky Flats Cold War Horse memorial, “to acknowledge Rocky Flats, its workers, and the surrounding community.” A stone inscription near the monument reads in part, “The history of this important national and international site, and the workers who sacrificed so much, have yet to be acknowledged by federal, state or local governments. This memorial stands as a reminder of a history that we must not forget.”
April and May 2015

USFWS along with CDPHE, EPA, DOE and US Department of Transportation pushed local municipalities to vote for a cost sharing federal grant regarding the Rocky Mountain Greenway trails through Rocky Flats Refuge. The Rocky Flats Technical Group convinces one municipality to vote no and the other six voted to include a soil analysis plan contingency regarding the grant. The Rocky Flats Technical Group along with other citizens’ groups want the Rocky Mountain Greenway to be constructed around Rocky Flats.
November 2016

A local advocacy group, Rocky Flats Downwinders, initiated a grassroots health survey to study illness in the Rocky Flats area. Initial results indicate a high rate of thyroid and rare cancers.
March 2017

The Boulder Valley School District is the first to pass a resolution to ban school field trips to Rocky Flats. Activists and experts are working on a campaign, called Keep Kids Off Rocky Flats, which seeks to have all the school districts in the area to ban fieldtrips to Rocky Flats.
April 2017

Julia Mae Halliburton, the widow of a Rocky Flats worker who died of cancer, sued the Department of Labor who oversees medical compensation for nuclear workers. In 2015, the news organization McClatchy DC reported the startling statistic that 33,480 nuclear workers from across the country who received federal compensation for their illness have died. While this number is vast, it represents only a fraction of the workers who have become ill, many of whom have been denied compensation. Workers must prove that Rocky Flats was “at least as likely as not” the cause of their illness to finally receive compensation. This is a tough if not impossible task with large amounts missing and altered data.
April 2017

The last Rocky Flats sign was removed.
May 2017

Plaintiffs in a 27 year long lawsuit involving homeowners near Rocky Flats reach a settlement with the Dow Chemical Company and Rockwell International regarding plutonium contamination from Rocky Flats. Over 12,000 plaintiffs have been granted a $375 million settlement for devaluation of property values stemming from plutonium contamination.
May 2017

Activist organizations filed a lawsuit and preliminary injunction against the United States Fish and Wildlife Service to block the construction of the planned visitor facility and public use trails at the Rocky Flats Refuge.
July 2018

The town of Superior filed a lawsuit to keep the U.S. Fish and Wildlife Service from opening Rocky Flats National Wildlife Refuge, saying the agency hasn't adequately studied safety. It is the second lawsuit seeking to keep the refuge closed. A group of environmental and community activists filed a similar challenge earlier in 2018. Both lawsuit are ongoing.
April 2018

Seven Denver metro area school districts have barred school-sanctioned field trips to the Rocky Flats wildlife refuge over contamination concerns. Activists led the push to ban school children from the site.
September 2018

On September 15th 2018, the United States Fish and Wildlife Service opened the “Rocky Flats Wildlife Refuge” to the public amid controversy. Activists showed up to contest the opening.
November 2018

Highlands Natural Resources Corporation submitted an application to horizontally drill four sections of the Rocky Flats site, including the superfund site. After major backlash from the community, Highlands Corporation withdrew their application.
May 2019

Brittany Kelly was diagnosed with breat cancer on May 1st 2019, at the age of 34. Her younger sister was also diagnosed breast cancer, twice. While searching for answers she stumbled across many other young women with breast cancer. After putting out a few social media posts, Brittany noticed that there seem to be high concentrations in communities near the Rocky Flats site. The community run survey and monitoring program is ongoing. You can find their page here: https://www.facebook.com/youngBCinCO/
August 2019

Testing near Rocky Flats is being done for the first time in over a decade. On August 8th, CDPHE reported that one sample showed 264 pCi/g of plutonium. The reading is 5 times the allowable limit for the Rocky Flats cleanup and is 13,500 times background radiation. Dr. Michael Ketterer took his own independent soil samples and found 6 more "hot particles" of plutonium. More testing results are expected to be announced soon.
August 2019

A planned four lane tollway, known as Jefferson Parkway, was halted following the findings of "hot" soil samples. The toll-way is planned to be construscted on the eastern edge of Rocky Flats. Lawsuits in 2012 put plans on temporary hold and efforts to build the parkway started again in 2017. Activists and local councils have been fighting to keep the road from being built in its current alignment.


The U.S. production of nuclear weapons has left a lingering legacy of contaminated lands and peoples. Over 300 facilities across the nation have contributed to building the United States' nuclear arsenal. Accidents have plagued the weapons complex, leaving workers, nearby residents, and the surrounding environments, contaminated with long-lived radioactive and hazardous wastes.

In the article “The Half-Life of Memory,” where this film borrows its title, author Hannah Nordhaus writes, “Plutonium has a half-life of 24,000 years. The half-life of memory, by contrast, is a much briefer thing. The contamination at Rocky Flats will long outlive our efforts to control or even remember it.”

America's nuclear past is a distant memory, but the threat of nuclear war is on the rise again. Growing tensions between nuclear nations have many people fearing that we’re at the beginning of a new Cold War. The events that have taken place at Rocky Flats, and across the nuclear weapons complex, demonstrate that it is up to us as citizens to remember and prevent these grievous mistakes from occurring again. .

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Half-Life of Memory