Koppers Company Inc. NPL Site

State TrusteeAO Bureau

Also Known As

Texarkana Plant

Incident Type




Case Status



Waggoner Creek​, Cowhorn Creek


Contaminants of Concern Include

Affected DOI Resources Include

Migratory Birds

Case Description

Koppers Co., Inc., operated a 62-acre wood-processing plant in Texarkana, Bowie County, Texas, between 1903 and 1961. The processes used by the Koppers plant involved creosote, pentachlorophenol (PCP), and zinc. Releases to surface waters and groundwater affected the aquatic and riparian habitat for ponds located on the site and Waggoner Creek, impacting deciduous forest, riparian deciduous forest, serial shrub land/young forest, grassland, benthic organisms, birds and open water. The case settled in 2008 and provided for the preservation of 76 acres of bottomland hardwoods within the Lennox Woods Preserve in Red River County, Texas.

Credit: USFWS

Case Documents

 Document TypeDocument NameDocument Date


 Consent Decree Consent Decree 09/25/2008

Map View

Case Contact

Austin Ecological Services Field Office

Austin, TX | (512) 490-0057 | http://www.fws.gov/southwest/es/AustinTexas/

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