The Tribal Superfund Working Group (TSFWG) is a network of Tribal professionals, other experts, and government employees that are engaged in work with Superfund sites, Federal Facilities and other sites of special concern. These individuals work on protecting Tribal lands, water, and community health and have become part of this group either by self-subscribing, because of their past work on Superfund issues, or because Superfund is their primary area of work or interest. Sign up for the TSFWG listserv here, or email Todd Barnell (Todd.Barnell@nau.edu) or Julie Meikowski (Julie.Meikowski@nau.edu) and request to be added.
TSFWG Meeting Notes, Presentations, and Recordings
July 2026: TSFWG: Superfund Redevelopment: Site Specific and Regional Projects
Summer King, EPA’s Superfund Tribal Coordinator, discussed the available tools and resources to help Tribal governments, community members, property owners, local and state government leaders potential developers, and other interested parties assess the viability of Superfund properties for redevelopment and integrate future redevelopment into the remedial process. The session highlighted site-specific projects with Tribal involvement, and how Tribes can become involved in future projects.
Summer shared this site as a reference for related projects:
February 2026: TSFWG: Superfund/Brownfield Redevelopment and AI Data Centers
For our first quarterly get-together in 2026, Sharon Hartzell, EPA’s Superfund Redevelopment Program (SRP) Manager, discussed SRP’s collaborative effort with the Brownfields program to develop resources for the potential reuse of Superfund and Brownfields sites as artificial intelligence (AI) data centers. Sharon discussed siting criteria, site reuse resources, and other considerations pertaining to data center reuse.
The Superfund Redevelopment Program and Brownfields and Land Revitalization Program have assembled information, tools and resources to help community members; property owners; local, state or Tribal government leaders; potential developers; and other interested parties assess the viability of Superfund site properties and brownfield sites for redevelopment as possible locations for Artificial Intelligence (AI) data centers or other facilities related to AI infrastructure or development. The information, including a mapping tool to screen for sites that may be good candidates for AI infrastructure, can be found on two web pages:
December 2025: TSFWG: Bunker Hill Restoration & Superfund Assistance
Rebecca Stevens at the Coeur d’Alene Tribe kicked off this session with some exciting updates on restoration work happening at the Bunker Hill Superfund site. Todd Barnell then followed up with a discussion about some potential research topics the Waste and Response team will tackle in the next few years to help Tribal staff working on contaminated sites. In the past, the team has developed events and resources on a variety of research topics ranging from finding and working effectively with contractors to dealing with the loss of institutional knowledge. All of these resources can be found on this website.
October 2025: Building Research Relationships During Superfund Remediation
Dr. Robert Nairn from the University of Oklahoma shared several projects he and his team have conducted, in cooperation with Tribes, that showed damage from previous mining is not irreversible, and how Natural Infrastructure can restore ecosystems. He also shared stories from their work addressing PFAS and PFOS. This is an inspiring discussion that also shows how reciprocal relationships between Tribes and researchers gets results.
July 2025: Flooding Impacts on RCRA, Brownfield, Superfund, and UST/AST Sites
Meredith Fry and Lauren Oliver from EPA’s Office of Research and Development provided an overview to their recent Interim Report on the impacts of flooding at Superfund sites, Brownfields, RCRA sites, and petroleum storage tanks. They showed how to access and download nationwide data for heavy precipitation and median height above the nearest drainage which you can use to prepare your own sites.
March 2025: The Good Samaritan Remediation of Hardrock Mines Act of 2024
David Hockney, with the US EPA Office of Deserts, Mountains, and Plains, provided an introduction to the Good Samaritan Remediation of Hardrock Mines Act of 2024 which was passed on December 17, 2024. Under this legislation, EPA is tasked with establishing a 7-year pilot program, where EPA may issue up to 15 permits to allow outside parties (Good Samaritans) to remediate mine residue at abandoned hardrock mine sites to protect human health and the environment without being subject to enforcement or liability.
OMDP is currently in the information-gathering stage of developing a guidance document for the pilot project. They have invited tribes to weigh in during this stage. They will also invite tribes to comment on the guidance document once they have put it out for public comments sometime in the next six months or so. The OMDP team posed seven questions to participants.
Click here to access TSFWG Meeting Notes, Presentations, and Recordings from prior years
December 2024: EPCRA Discussion
November 2024: EPA’s Updated Guidance for Lead in Soil
July 2024: Impacts & Costs of Flooding at Contaminated Sites
June 2024: Critical Minerals and Risk Communication with Tribes
January 2024: Climate Vulnerability Assessments at Sites on the National Priorities List
October 2023: PFAS Analytical Tool
June 2023: The Navajo Nation AUM Portal and Tribal Data
March 2023: Critical Minerals Presentation and Discussion
December 2022: EPA’s Federal Facilities Restoration and Reuse Office (FFRRO) and Hanford BC Case Study
July 2022: The Bradford Island and Henryetta Iron & Metal NPL Sites
May 2022: All Hazards Planning Guidelines
March 2022: Tribal Community Involvement at Superfund Sites
January 2022: PFAS Strategic Roadmap
September 2021: Climate Resiliency & Superfund Sites with Carlos Pachon
June 2021: Environmental Justice Conversation with Carlton Waterhouse
May 2021: TSFWG Virtual Panel: Finding and Managing Consultants
April 2021: Tribal Superfund Working Group Annual Meeting: Saint Regis Mohawk Tribe, (ten recordings and PDF presentations available with each recording)
February 2021 Evaluating Tribal Dietary, Lifestyle, and Ceremonial Exposures for use in EPA Superfund Risk Assessments PDF Presentation
December 2020: EPA Office of Mountains, Deserts, and Plains Director Discussion with TSFWG (closed session – no recording)
April 2020: Native Food Pathways and Contaminated Sites – A Discussion Between EPA and Tribal Professionals
March 2020: Protecting the Sacred in an Environmental Cleanup – the Fort Mojave Indian Tribe and the Topock Remediation Project, Topock Remediation Project Overview
November 2019: Stresses and Successes: A Difficult Responsibility for Tribes Restoring Contaminated Lands and Water
February 2019: Radionuclide Contaminant Transport at the Pueblo de San Ildefanso
November 2018: Phytoremediation Using Bacterial Endophyte Enhanced Poplar Trees
March 2018: Assessing and Preventing Exposures to EDCs in Alaska Native Communities on St. Lawrence Island
November 2017: Increasing Community Engagement on Contaminated Lands
February 2017: Superfund Cooperative Agreements – A Tribal Perspective
December 2016: Superfund Cooperative Agreements – A Federal Perspective
February 2016: Review of Coeur d’Alene Tribe’s Work on Bunker Hill Superfund Site (audio recording)
November 2015: TSFWG Meeting Notes, Presentation by Dr. Barbara Harper – From Time Immemorial
August 2015: TSFWG Meeting Notes
February 2015: TSFWG Meeting Notes
November 2014: TSFWG Meeting Notes
July 2014: TSFWG Meeting Notes
March 2014: TSFWG Meeting Notes





