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  2. EPA in California

Moss Landing Vistra Battery Fire Response

Learn More: Response Timeline | Frequently Asked Questions | Photos | Register for Email Updates

U.S. EPA Region 9 Emergency Response Badge

 We are committed to doing our work with respect for the Moss Landing community and local stakeholders. Transparency and community engagement throughout the process are central to our approach.

Since the January 2025 fire in Moss Landing, EPA has been on-site providing technical assistance in the planning and preparation for battery removal. We are working to ensure that Vistra safely removes and disposes of batteries impacted by the fire.

On this page:
  • Work Highlights
  • Community Safety
  • Background and EPA’s Involvement
  • What is Each Agency’s Role in the Fire Response?
  • Battery Treatment, Transport & Disposal
  • Completed Activities
  • Documents

Work Highlights

On July 17, 2025, EPA entered into an agreement with Vistra to remove damaged batteries from its property.

  • The agreement covers the battery removal preparation and planning work that Vistra has been doing voluntarily and future work.
  • Building stabilization and demolition planning is underway to safely access the batteries.
  • All battery removal work will be done under our close oversight. We are coordinating with Monterey County throughout.

We are committed to transparency. To share information on this project, we are developing a Community Involvement Plan.

  • EPA will develop and implement the plan with support from Vistra.
  • We have been interviewing community members, local officials, organizations, and other stakeholders to develop the plan.
  • Interviews will help identify information gaps and best ways for sharing information and community engagement.
  • The plan will be posted to the documents section of this website when complete.

Community Safety

Community safety throughout the project is our priority. Batteries damaged in a fire may be unstable and could catch fire again during work. We are overseeing Vistra as they take these safety steps:

  1. Constant air monitoring around the property.
  2. Keep a 24/7 private firefighting company on-site out of an abundance of caution. The company will be able to respond right away and coordinate with the local fire department if a fire starts.
  3. Maintain an EPA-approved emergency response plan.

For more information on the battery removal process, see our Battery Treatment, Transport, and Disposal section.

Background and EPA’s Involvement

  • On January 16, 2025, the Moss Landing 300 battery energy storage system at the Moss Landing Vistra power plant (Monterey County, Calif.) caught fire.
    • The 300-megawatt system held about 100,000 lithium-ion batteries.
    • About 55 percent of the batteries were damaged by the fire.
  • Local agencies immediately requested our support for air monitoring. EPA deployed to the scene and did air monitoring January 17-20.
  • The State of California also requested we oversee the battery removal process.
  • Learn More: Updates on EPA’s Response

What is Each Agency’s Role in the Fire Response?

EPA

  • Oversee the safe removal of batteries from the property. Our oversight applies to:
    • activities within the fence line of the property, and
    • preparation of the batteries for transport to recycling or disposal facilities.
  • Ensure transparency and community engagement throughout the battery removal work.
  • Provide technical assistance to Vistra for battery:
    • removal,
    • transport,
    • recycling and disposal, and
    • closely coordinate with local and state governments to ensure information sharing, consistency and efficiency.

Vistra

  • Respond to fire damage and safely remove damaged batteries. All work is being done under federal and state oversight.
  • Vistra will perform and pay for the removal of the impacted lithium-ion batteries from the site under EPA’s oversight.
  • Submit detailed work plans to EPA, implement comprehensive safety measures to protect nearby residents and workers during the cleanup process, and participate in community involvement activities to enable meaningful community engagement throughout the removal process.

State and Local Government

  • Oversee all activities:
    • outside the property fence line, and
    • on the property that are not related to battery removal.

Monterey County Health Department

  • Learn more about response activities in the community at the Monterey County website.

State of California Environmental Protection Agency (CalEPA)

  • Collaborate with Monterey County on outside of the fence activities, such as community sampling.
  • Coordinate with EPA on inside-the-fence activities.
  • En español

Updates

  • Latest Updates
  • Register for Email Updates

Resources

  • Administrative Settlement Agreement and Order on Consent: Moss Landing Complex (pdf) (5.12 MB, July 17, 2025)
  • January 2025 fire
  • Vistra Corp.
  • Monterey County

News Releases

  • EPA reaches agreement with Vistra Corp. for urgent battery cleanup at Moss Landing, launches website for public updates

  • EPA llega a un acuerdo con Vistra Corp. para la limpieza urgente de baterías en Moss Landing, lanza un sitio web para actualizaciones públicas

  • EPA Completes Air Monitoring Near Moss Landing Vistra Battery Fire

  • EPA Air Monitoring Results Near Moss Landing Vistra Battery Fire Not Exceeding Health Standards

EPA Region 9 Deputy Regional Administrator Cheree Peterson tours the site with the EPA emergency response team and Vistra
Deputy Regional Administrator Cheree Peterson tours the site with the EPA emergency response team and Vistra. Click to enlarge.

Contact

Please email us with your questions and concerns about the Moss Landing Vistra Battery Fire Response at R9.info@epa.gov.

Private fire truck part of Vistra’s fire team.
Private fire truck, part of Vistra’s fire team. Click to enlarge.
Back of a large RV like vehicle with painted text "U.S. EPA Command Post"
Photo of our Mobile Command Post stationed on-site shortly after the Moss Landing fire started (photo taken at a different event). Click to enlarge.

Battery Treatment, Transport & Disposal

Related Work

We have done extensive work dealing with batteries after large-scale fires, most recently for the 2025 Los Angeles wildfires. We are providing technical assistance to Vistra and its work crews to ensure safety and efficiency.

EPA will oversee the safe removal and disposal of batteries impacted by the fire.

De-energizing Batteries for Safety

  • Under our technical guidance, Vistra will use various methods to de-energize the batteries before transport.
  • Undamaged batteries will be de-energized.
  • Some batteries may not be able to be de-energized. These will be treated on the property before disposal.

Shipping and Disposal

  • We will ensure packaging and transportation follows the U.S. Department of Transportation safety regulations.
  • Depending on the type of battery waste, recycling may be possible.

Completed Activities

EPA and Vistra personnel surveying damage to the “ML300” building.
EPA and Vistra staff inspecting damage to Vistra’s building post-fire. Click to enlarge.

Before reaching the agreement with Vistra in July 2025 on the battery removal process, the following activities were completed on site:

  • Disconnected (delinked) batteries from the building’s infrastructure for safety.
  • Removed fire debris with asbestos from part of the damaged building.
    • Debris was safely transported and disposed of at the Forward Landfill. The landfill is in Manteca, Calif., about 135 miles northeast of Monterey.
  • Removed about 586,300 gallons (about as much as an Olympic-sized swimming pool) water that was stored in tanks on the property. The water was sampled, determined to be non-hazardous and sent for disposal.

Documents

Free viewers and readers are available to access documents on our website. If you encounter issues with assistive technology, please contact us.

  • Administrative Settlement Agreement and Order on Consent: Moss Landing Complex (pdf) (5.12 MB, July 17, 2025)
    Administrative Settlement Agreement and Order on Consent For Removal Action in the matter of Moss Landing Complex, Moss Landing, California - Vistra Corp. Moss Landing Energy Storage 1 LLC and Moss Landing Power Company LLC. CERCLA Docket No. 09-2025-08. On July 17, 2025, EPA and Vistra Corp. have entered into an enforceable agreement, called an Administrative Settlement Agreement and Order on Consent, under which Vistra will conduct and pay for on-site battery module removal under EPA’s oversight
  • EPA Letter: Response to Monterey County Board of Supervisors (pdf) (740.96 KB, June 30, 2025)
    EPA Region 9 response letter to May 23, 2025 Monterey County Board of Supervisors’ letter entitled Support for U.S. EPA Oversight and CERCLA Coordination at the Moss Landing Site, Monterey County.
  • Notice of Federal Response Action (NFRA) issued to Vistra Corp. (pdf) (186.47 KB, January 22, 2025)
    After the January 2025 battery fire at Moss Landing, EPA issued a Notice of Federal Response Action (NFRA) to Vistra Corp. on January 22, 2025, informing Vistra that a response action was necessary. This formal notice gave Vistra the opportunity to conduct a response and outlined work that needed to be done at the site

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  • Moss Landing Vistra Battery Fire
    • Response Timeline
    • Frequently Asked Questions
    • Photographs
    • Join the Email Distribution List
  • Incendio de la batería Vistra en Moss Landing
    • Cronograma de respuesta
    • Preguntas frecuentes
    • Fotografías
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Last updated on August 21, 2025
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