Regulatory Framework
The former Tronox/Kerr-McGee Wood Treating Facility (the Site) in Bossier City was contaminated by decades of creosote-based wood treating operations.
A 1998 investigation by the U.S. Environmental Protection Agency (EPA) and the Louisiana Department of Environmental Quality (LDEQ) concluded that the Site was eligible for listing on the National Priorities List. The following year, LDEQ assumed lead responsibility for the Site.
Greenfield Environmental Multistate Trust LLC, trustee of the Multistate Environmental Response Trust (Multistate Trust) is performing investigations and cleanup under the State of Louisiana’s Risk Evaluation/Correction Action Program (RECAP).
Investigation & Cleanup Under RECAP
RECAP sets the remediation standards and processes for investigations and environmental actions at the Site.
Since 2011, the Multistate Trust and LDEQ have been working to better understand Site-related contamination and gather data. The Multistate Trust has identified five areas of investigation (AOIs) with contaminant concentrations that exceed RECAP standards:
On-Site surface soils at the Main (East) Property
On-Site surface soils at the West Property
Off-Site surface soils in nearby residential areas and ditches
Subsurface soils
Groundwater
Our Beneficiaries & Regulatory Agencies
The Multistate Trust’s governmental beneficiaries are the United States and 21 state governments, including the the State of Louisiana, represented by LDEQ.
LDEQ is the lead regulatory agency for the Site, and the United States Environmental Protection Agency (EPA) is the Site’s non-lead agency. As lead agency, LDEQ approves Site-specific budgets, cleanup plans and activities, and contractors.
As beneficiaries, LDEQ and the United States must approve the sale, transfer, or disposition of all or any portion of the Site.
Overview of Work Performed
Milestones Achieved to Date
Since assuming responsibility for the Site in Bossier City in 2011 as part of the Tronox bankruptcy settlement, the Multistate Trust has completed the following environmental actions and investigations:
Current Activities & Work
LDEQ and the Multistate Trust are prioritizing excavating off-Site contaminated soils on residential properties and nearby areas. In 2022, ±12,500 cubic yards of contaminated soil were excavated at Scott-Dickerson Homes and adjacent properties. In 2023, the Multistate Trust finished replacing the parking lot at Scott-Dickerson Homes after removing contaminated soil underneath the pavement.
In 2024, the Multistate Trust removed contamination from a small area on Carver Street (completed in April) and under a section of Scott Street (completed in August). In addition, the Multistate Trust began an investigation to address potential concerns about indoor air quality. The testing results showed no chemicals were found below buildings or in sewers at levels that would lead to indoor air above EPA health-based levels.
Groundwater sampling is performed twice per year at approximately 20 monitoring wells on-Site and off-Site.
Expected Future Work
In 2025, the Multistate Trust is planning to remove soil contamination and replace a drainage ditch near the Site, north of Jean Street.
The Multistate Trust is also working to sample soil at additional residential properties around the Site. If you are interested in sampling at your property, please contact the Multistate Trust to learn if your property is eligible.
Options for any future potential cleanup of on-Site contamination will be evaluated based on remaining funds after the removal of contaminated soils from off-Site residential areas. The Multistate Trust will evaluate cleanup options for remaining contamination:
On-Site surface soil between ground surface and 5 feet below ground surface;
On-Site and off-Site soil deeper than 5 feet below ground surface; and
On-Site and off-Site groundwater.