What is the Koppers Co. Superfund site?

It is a contaminated site in Texarkana, Texas, previously used for wood treatment.

When will the five-year review take place?

The review will be conducted in December 2025.

What actions were taken for site cleanup?

Cleanup included home purchases, resident relocations, and removal of contaminated soils.

Who oversees the Koppers Co. site cleanup?

The U.S. Environmental Protection Agency, Region 6, is responsible for the cleanup.

EPA will conduct a five-year review of the Koppers Co. Superfund site cleanup.

Official Courthouse Record · AI-summarized for clarity

Published: Feb 25, 2026 · 1 month ago
Category: Court Notice
City: Texarkana
Address: Texarkana, Texas · 9 filings

What You Should Do Next

1
Stay Informed
Monitor updates from the EPA regarding the five-year review process.
2
Attend Public Hearing
Participate in the public hearing scheduled for December 2025 to voice concerns.
3
Contact EPA
Reach out to the EPA for any questions about the cleanup and its impact.

Frequently Asked Questions

What is the Koppers Co. Superfund site?: It is a contaminated site in Texarkana, Texas, previously used for wood treatment.
When will the five-year review take place?: The review will be conducted in December 2025.
What actions were taken for site cleanup?: Cleanup included home purchases, resident relocations, and removal of contaminated soils.
Who oversees the Koppers Co. site cleanup?: The U.S. Environmental Protection Agency, Region 6, is responsible for the cleanup.

The above suggestions and answers are AI-generated for informational purposes only. They may contain errors. NoticeRegistry assumes no responsibility for their accuracy. Consult a qualified professional before taking action.

Full Notice Text

Koppers Co., Inc. (Texarkana Plant) Superfund Site
Public Notice
U.S. Environmental Protection Agency, Region 6
December 2025
The U.S. Environmental Protection Agency Region 6 will be
conducting the sixth five-year review of the cleanup at the
Koppers Co., Inc. (Texarkana Plant) site (Site) in Texarkana,
Texas. A wood-treatment facility operated on-site from 1903 to
1961. Facility operations contaminated soil and groundwater with
wood-treating chemicals. The 62-acre Site is fenced and not in
use. Surrounding land use includes residential, industrial and
undeveloped properties.
The Site's remedy included the purchase of homes and relocation
of residents affected by site contamination. It also included
building demolition, removal of contaminated soils and off-site
disposal of the debris and soils. These activities were completed
by 1996. Other parts of the cleanup include ongoing removal of
creosote from groundwater, institutional controls and long-term
maintenance and