Campaign to prevent radioactive tritium venting from Los Alamos National Laboratory
For Immediate Release: September 10, 2025
NMED Approves LANL Tritium Venting Plan — Radioactive Releases to Begin Saturday Despite Community Opposition
Los Alamos, NM — This Saturday, September 13, 2025, the Department of Energy’s National Nuclear Security Administration (NNSA) and Los Alamos National Laboratory (LANL) will begin the depressurization of four Flanged Tritium Waste Containers (FTWCs), initiating the release of radioactive tritium into the air above northern New Mexico. The operation is scheduled to last two weeks.
On September 4, the New Mexico Environment Department (NMED) granted a temporary 180-day authorization for LANL to proceed. While NMED imposed new restrictions — including lowering the emissions limit, requiring pre-notice to Tribes and the public, and mandating a post-activity public meeting — the agency acknowledged in its letter that, “ the primary reason [DOE NNSA and LANL] requested a temporary authorization stems from the Permittees failure to properly manage hazardous waste at the time of generation followed by almost a 20-year disregard of compliance obligations under state laws and rules.”
NNSA and LANL announced that they selected the timing of the operation to “avoid impacting neighboring Pueblo Feast Days” and to consider weather conditions. Yet community members see this as a superficial gesture that fails to address the deeper risks of radioactive releases.
Community Response
Public health advocates, Pueblo communities, land-based communities, and environmental organizations warn that this action represents an immediate and unacceptable threat. Tritium, a radioactive isotope of hydrogen, travels quickly through air, water, soil, and food. Once inside the human body, it can cause cancer, genetic damage, cross the placental barrier, and impact future generations.
“DOE and LANL are trying to portray this as safe and routine, but there is nothing routine about exposing entire populations to radiation,” said Kathy Sanchez with Tewa Women United. “Pregnancy, children, and breastfeeding are uniquely vulnerable because water is the medium of life. The same way rivers carry sustenance through the land, water flows through our bodies–amniotic fluid, breastmilk, blood. When tritium enters the cycle, it harms not just one person, but generations.”
“This project is the direct result of decades of mismanagement,” said Joni Arends of Concerned Citizens for Nuclear Safety. “Instead of investing in real solutions like filtration or long-term storage until decay, DOE is forcing our communities to accept dangerous shortcuts.”
“Using LANL’s own limit of 8 millirem, or even the new NMED limit of 6 millirem, for stopping venting for the year, doses to infants would be well over the regulatory limit of 10 millirem, ” said Dr. Arjun Makhijani, Communities for Clean Water’s tritium technical expert. “ LANL acknowledged during the public meeting that infant doses would be three times adult doses. In effect, they are saying that for regulatory purposes infants are not members of the public and can be ignored.”
A Pattern of Environmental Injustice
LANL’s website frames the FTWC Mitigation Project as “protective of worker safety, public health, and the environment.” But NMED’s own decision letter contradicts that narrative, citing DOE and LANL’s failure to meaningfully engage Tribes or the public, and reserving the right to suspend the authorization if health or safety are endangered.
“LANL’s manufactured negligence created this crisis,” said Marissa Naranjo with Honor Our Pueblo Existence. “No one can pretend this is safe. Children, elders, pregnant people, and families will be put at risk. Despite our Pueblos doing all they can to protect us, our communities and our lands will carry this burden long after LANL has moved on.”
“As a farmer, I know the importance of clean water,” said Olivia Chavez, a local grower from northern New Mexico who is also raising young children on her family’s farm. “Our fields, soil, and our irrigation systems are all interconnected with the water cycle. It’s about our livelihoods, our traditions, and our ability to feed our next generations safely.”
Communities Demand Accountability
Communities for Clean Water and allied organizations demand:
An immediate halt to tritium venting scheduled for two weeks, beginning on Saturday, September 13.
Truly independent, conflict-free review of alternatives.
Public and Tribal review of Tewa Women United’s technical reports documenting unique exposure pathways.
A commitment to prioritize human health and environmental justice over nuclear weapons production.
“We are being asked yet again to sacrifice our health, our traditions, and our future,” said Talavi Denipah-Cook of Amigos Bravos. "We will not tolerate radioactive releases as a routine practice. Saturday must not signify yet another period of silence and contamination.”
September 4, 2025
NMED APPROVAL WITH MODIFICATIONS OF LANL’S TEMPORARY AUTHORIZATION REQUEST TO VENT TRITIUM
August 29, 2025
CCW Sent letter to NMED Urging NMED to Deny LANL’s Request for Temporary Authorization to Vent Tritium for the following reasons:
The Public Meeting Failed to Meet NMED’s Standards
The Technical Review Was Not Independent
Alternatives Analysis Remains Incomplete and Obscured
Procedural and Community Justice Failures
There Is No Emergency
July 9, 2025
Our letter details requests on the following:
Scope of Public and Tribal Participation
Alternatives to Venting
Tribal Consultation and All Pueblo Council of Governors Engagement
Public Hearing and Pre-Hearing Comment Period
Use of Settlement Funds to Support Oversight
July 9, 2025
Note the following in the letter hyperlinked above:
"As a response to the letter requiring prerequisites to any NMED action on the temporary authorization request, NA-LA and Triad are exercising the option to request an opportunity to meet and confer to resolve disagreement associated with the June 9, 2025 letter."
"NMED exceeded its authority in functionally denying Temporary Authorization for Flanged Tritium Waste Container pressure mitigation activities over which NMED has no jurisdiction and which are necessary for the protection of worker safety, human health, and the environment."
June 13, 2025
Local Communities and NMED Halt Tritium Release from LANL for the Time Being
Los Alamos, NM - On June 9, 2025, the New Mexico Environment Department (NMED) denied the Department of Energy (DOE) and National Nuclear Security Administration (NNSA) Temporary Authorization Request for venting radioactive tritium into the air from four flanged tritium waste containers (FTWCs) at Los Alamos National Laboratory (LANL).
In the letter, NMED requests that DOE/NNSA meet the following criteria before submitting a “revised request for temporary authorization to NMED for consideration.”
Obtain an Independent Technical Review for alternative options for the depressurization of the FTWCs.
Hold a Public Meeting for interested stakeholders, which includes a review of the independent, third-party technical review for alternative options.
Conduct Tribal Consultation with interested tribal governments.
Conduct a Compliance Audit of hazardous waste and its operations, by an independent, third-party auditor.
The DOE/NNSA Notification of Planned Start of a Temporary Authorization Request Waste Management Activity to NMED was submitted on April 4, 2025 with an aim to begin venting on or after June 2, 2025. NMED’s decision to deny the request was in large part due to strong local advocacy, community and environmental health concerns, and lack of Tribal consultation. Local concern has continually grown with frequent rains across New Mexico in June thus far. Rain during venting would present a worst case scenario to public health and the environment, with adverse radiation impacts especially to pregnant women, infants and small children.
In response to the Temporary Authorization Request in April, Nuclear Watch New Mexico, Concerned Citizens for Nuclear Safety and Communities for Clean Water started a petition against the venting, which garnered more than 2,300 signatures online.
On May 14, 2025, CCW requested a 60-day public comment period to NMED, to ensure impacted members of the public are informed of the risks of LANL’s proposed tritium venting project -
Re: Requesting Public Comment Opportunity on LANL Temporary Authorization Request, Hazardous Waste Facility Permit, EPA ID No. NM0890010515
On May 30, 2025 CCW sent a letter to NMED requesting that NMED withhold its regulatory consent until LANL responds to the independent technical reports that CCW and Tewa Women United contracted, which revealed impacts on infants and fetuses, as well as potential harmful impacts on the Rio Grande, groundwater and food systems. Around this time, NMED also received a letter of concern from San Felipe Pueblo.
It is important that we as a community continue to ensure that LANL meets the requirements that NMED is requesting. CCW also continues to advocate for a 60-day public commenting period which includes public meetings.
As CCW we thank the public for your continued advocacy, including the dedicated work of our partners, Tewa Women United, Concerned Citizens for Nuclear Safety, Honor Our Pueblo Existence, the Institute for Energy and Environmental Research, the New Mexico Environmental Law Center, Nuclear Watch New Mexico, Breath of My Heart Birthplace, Amigos Bravos, the New Mexico Acequia Association, Partnership for Earth Spirituality, and Sovereign Energy.
ACT NOW:
Sign the Petition to Deny LANL’s Request to Release Radioactive Tritium into the Air
See the independent, technical reports about the impacts tritium venting could have on water at the bottom of this page.
See the independent, technical reports about tritium’s adverse impacts on infants, children and fetuses on Tewa Women United’s website.
About the Tritium Venting:
LANL has four waste containers filled with approximately 90,000 curies of radioactive tritium that they want to transport. They say that if they do not vent them into the air, there may be a tritium explosion. CCW has worked diligently since 2020 to hold LANL accountable to the harm that the venting of the tritium waste containers could have on our communities.
Here are the facts:
LANL has not measured the gas and metal contents found in the headspace of the tritium waste containers - they do not know if it is actually necessary to vent the containers.
LANL wants to vent 3 grams (30,000 curies) over the span of a few days and possibly over a single day. This is the same amount of tritium as Japan is dumping into the Pacific Ocean over the span of 30 years from the tsunami and nuclear reactor explosions at Fukushima Daiichi Nuclear Power Plant. In total as much as 90,000 curies - three times the Fukushima amount - may be emitted, though not more than 30,000 curies in any single year.
One teaspoon of tritiated (HTO) water will contaminate about 100 billion gallons of water.
When calculating the risk, LANL does so for adults - they are not required to do so for children, infants or pregnant women/fetuses. This does not properly represent the real impact on our communities. The author of one report, Bernd Franke, stated, “In the case of tritium, infants and small children get a radiation dose about three times greater than adults, with the same concentrations of tritium in air, water, and food.”
CCW’s work to prevent tritium venting continues our collaboration with Tewa Women United (TWU) since 2020, when TWU released a petition that totaled more than 3,000 signatures. Since the petition, Tewa Women United has continued working to prevent the tritium venting, commissioning two reports to study impacts and finding: “LANL Omitted Dose Calculations to Infants & Children in Their Compliance Application.”
LANL showed a list of 53 alternatives for the tritium venting to the EPA Region 6, but this has not been released to the public, despite Freedom of Information Act (FOIA) requests by Tewa Women United. LANL has also failed to conduct independent studies on health and environmental impacts to waterways in the case of weather events. There has been no new public information about the venting given by LANL or DOE/NNSA since 2020.
In Tewa Women United’s November 2024 press release, Kathy Wan Povi Sanchez, member of San Ildefonso Pueblo and one of Tewa Women United’s co-founders, said, “Tritium makes water, our sacred source of life, radioactive. We were shocked to learn that LANL’s compliance calculations did not take infants and other children into account.”
In 2020 the All Pueblo Council of Governors distributed a press release titled “Pueblos Concerned about Los Alamos National Laboratories Planned Release of Radioactive Vapors.”
For more information, read Searchlight New Mexico’s June 2024 article about LANL tritium venting.
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Communities for Clean Water (CCW) contracted the German engineering firm Ingenieurbüro Rau to do Weather Modeling to see the impact that the Tritium Venting could have on rainwater, surface water and groundwater in the case of weather events (rain/wind) during venting.
Weather Modeling Report by Matthias Rau, Ingenieurbüro Rau
The present report “examines the dispersion and environmental impact of tritium released during the venting of Flanged Tritium Waste Containers (FTWCs) at Los Alamos National Laboratory (LANL).”
“The primary goal of the study is to assess how tritium disperses in the air and how it deposits through precipitation. This evaluation is critical for understanding the potential contamination risks at nearby locations, such as La Vista Church (2.2 km from the release site) and the Rio Grande River (5 km away).”
In Rau’s Conclusion, he states:
“The probability of high tritium deposition at the nearest receptor locations is relatively low, as rain events from the critical wind direction (west-northwest) are infrequent.
However, significant tritium release into the environment occurs during venting, with potential implications for local water bodies and ecosystems.
The report emphasizes the need for careful monitoring and potential mitigation measures to limit environmental exposure.”
That said, in a rain event, the amount of tritium released would contaminate local water bodies, including the Rio Grande, well above both the drinking water standard and the New Mexico surface water guideline. It would also contaminate groundwater and streams other than the Rio Grande in the area.
Read the report below:
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Dr. Arjun Makhijani with the Institute for Energy and Environmental Research (IEER) wrote a summary report of Matthias Rau's Weather Modeling document, in which he compares Rau's results to both national and New Mexico water standards and guidelines.
The main findings in Dr. Makhijani’s report are as follows:
“The U.S. Environmental Protection Agency (EPA) drinking water standard is a common reference value for understanding water contamination. For tritium, it is 20,000 picocuries per liter (pCi/L). In New Mexico, there is also the reporting guideline for surface water in the Rio Grande downstream of Los Alamos; it is 4,000 pCi/L. This short report interprets the Rau and Winkler (2025) modeling results in terms of these reference values.
Rainwater contamination on the venting day: The venting of the Flanged Tritium Waste Container (FTWCs) most loaded with tritium over one-day (24 hours) would, under specified adverse weather conditions, result in rainwater contamination at White Rock between 750 and 3,500 times the drinking water standard and between 3,750 and 17,500 times the New Mexico guideline. Venting of all four FTWCs under similar conditions would create proportionately similar contamination of rainwater to hundreds to thousands of times the two reference levels.
Annual average contamination: The drinking water standard and New Mexico guidelines would also be greatly exceeded even if the rainfall contamination were averaged over an entire year, assuming zero tritium releases on all days except those during which the ventings would be done.
Rio Grande contamination: Tens to hundreds of curies may be deposited in the Rio Grande River as a result of the ventings. A heuristic calculation of cumulative impact indicates that the Rio Grande may be seriously burdened with tritium as a result of the ventings.
Groundwater contamination: Tritium in rainwater would also contaminate groundwater as well as streams other than the Rio Grande in the area.
Los Alamos failure to evaluate groundwater impact: Los Alamos National Laboratory is required to assess groundwater impact under DOE Order 458.1. It has not done so.”
Read the report below: