Superfund Information Systems: Site Profile

Superfund Site:

TRIANGLE CHEMICAL CO.
BRIDGE CITY, TX

Cleanup Progress

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Cleaning up Superfund sites is a complex, multi-phase process. Learn more:

Site-Wide Milestones

Milestone Date(s)
Preliminary Assessment/Site Investigation Completed 01/01/1980
Proposed to the National Priorities List 12/30/1982
Finalized on the National Priorities List 09/08/1983
Final Remedy Selected 06/11/1985
Remedial Action Started 06/26/1985
Remedy Construction Completed 09/27/1990
Deleted from National Priorities List 04/08/1997
Most Recent Five-Year Review 09/21/2016
Site Ready for Reuse and Redevelopment 03/03/2011

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Cleanup Schedule by Operable Unit

During cleanup, a site can be divided into a number of distinct areas depending on its complexity. These areas, called operable units (OUs), may address geographic areas, specific problems, or areas where a specific action is required. Examples of typical operable units include construction of a groundwater pump and treatment system or construction of a cap over a landfill.

Milestone OU Start Date Completion Date OU ID
Removal OU 00 - SITEWIDE 04/02/1982 04/06/1982 00
Removal OU 00 - SITEWIDE 04/09/1985 04/12/1985 00
Removal OU 00 - SITEWIDE 08/16/1982 08/27/1982 00
Five-Year Review OU 00 - SITEWIDE 05/15/2006 00
Five-Year Review OU 00 - SITEWIDE 06/01/2001 00
Five-Year Review OU 00 - SITEWIDE 07/11/1994 00
Five-Year Review OU 00 - SITEWIDE 09/12/2011 00
Five-Year Review OU 00 - SITEWIDE 09/21/2016 00
Combined Remedial Investigation/Feasibility Study OU 01 - SITEWIDE - OU01 08/05/1983 06/11/1985 01
Record of Decision OU 01 - SITEWIDE - OU01 06/11/1985 01
Remedial Design OU 01 - SITEWIDE - OU01 09/26/1984 06/26/1986 01
Remedial Action OU 01 - SITEWIDE - OU01 06/26/1985 09/27/1990 01

DISCLAIMER: The data on this page are derived from the Superfund Enterprise Management System and are solely for informational purposes. The data cannot be relied upon to create any substantive or procedural rights or requirements enforceable by any party in litigation with any member of the public, states, tribes, the United States or any federal agency. EPA reserves the right to change these data at any time without public notice.

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