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Greenfield Environmental Multistate Trust LLC, Trustee of the Multistate Environmental Response Trust (Multistate Trust), is responsible for owning, investigating, cleaning up, and facilitating the safe reuse of hundreds of former Kerr-McGee Corporation and Tronox Incorporated sites in 31 states.
The Multistate Trust is a private, independent environmental response trust created as part of a bankruptcy settlement and dedicated to:
Protecting human health and the environment by addressing contamination at its sites;
Selling or transferring its sites to facilitate beneficial, community-supported reuses; and
Providing opportunities for meaningful community involvement.
This website is intended to make Multistate Trust information available to the public in a transparent and timely fashion. Please view our Multistate Trust 2023 Annual Progress Report.
The corporate parent and sole member of Greenfield Environmental Multistate Trust LLC (Multistate Trustee) is Greenfield Environmental Trust Group, Inc. (Greenfield). For more information, visit greenfieldenvironmental.com.
Upcoming and Recent Events
Upcoming and Recent Community Meetings
March 18, 2025:
The Multistate Trust cohosted a community meeting to provide updates about the former Tronox/Kerr-McGee Facility in Bossier City, LA. See the meeting presentation and recording.
March 4, 2025:
The Multistate Trust cohosted a community meeting and drop-in session about the Kerr-McGee Superfund Site in Navassa, NC. See the meeting presentation here.
January 14, 2025 and December 11, 2024:
The Multistate Trust cohosted in-person availability sessions on January 14 and virtual community update meetings on December 11 about the Kerr-McGee Superfund Site in Jacksonville, FL. See the meeting presentation here.
October 29, 2024:
The Multistate Trust cohosted a community meeting and drop-in session about the Kerr-McGee Chemical Corp – Navassa Superfund Site in Navassa, NC. See the presentation here.
October 16, 2024:
The Multistate Trust cohosted a community drop-in session about the former Tronox/Kerr-McGee Facility in Bossier City, LA. See the flyer for more information.
September 19, 2024:
The Multistate Trust cohosted a community visioning workshop for the future of the Caselton Mine Area and Mill Site in Pioche, NV. See the flyer for more information.
Community visioning workshop in Pioche, NV about the Caselton Mine Area and Mill Site, September 2024
July 30, 2024:
The Multistate Trust cohosted a community meeting and drop-in session for the former Tronox/Kerr-McGee Facility in Bossier City, LA. See the meeting presentation and recording.
June 27, 2024:
The Multistate Trust cohosted a community meeting for the Kerr-McGee Chemical Corp – Navassa Superfund Site in Navassa, NC. See the meeting presentation and recording.
June 11, 2024:
The Multistate Trust cohosted a community meeting and visioning workshop to discuss potential future uses of the Caselton Mine Area and Mill Site. See the flyer for more information.
April 30, 2024:
The Multistate Trust cohosted a drop-in information session to provide updates about the former Tronox/Kerr-McGee Wood Treatment Facility in Madison, IL. See the flyer for more information.
Financial Information
Approved Budgets and Amendments
Approved 2024 and 2025 budgets for Owned Funded Sites (OFSs) have been posted at Budgets.
Recent Financial Statements
Our 2024 3rd quarter financial statements for the Administrative Account, Owned Funded Sites, and other sites have been posted at Financial Statements.
News and Announcements
Announcements and Press Releases
Multistate Trust in the News
Greenfield Environmental Trust Map
A Map of Greenfield Environmental Trust Sites
As the professional service provider to the court-appointed trustees of multiple environmental and custodial trusts, including the Multistate Trust, Greenfield Environmental Trust Group, Inc. owns, cleans up, and facilitates responsible reuse of hundreds of contaminated sites nationwide.
These properties range from former chemical, petroleum, and manufacturing facilities, historic wood treatment sites, mine-scarred lands, and service station sites. This map depicts the locations of some of the sites that Greenfield owns as a trustee.