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AGENCY Texas Commission on Environmental Quality
ISSUE 01/18/2002
ACTION Miscellaneous

Notice of Intent to Delete the Tricon America, Inc. State Superfund Site from the Texas Superfund Registry

The executive director (ED) of the Texas Natural Resource Conservation Commission (TNRCC or commission) is issuing a public Notice of Intent to Delete the Tricon America, Inc. State Superfund Site (the Site) from the State Registry, the list of state Superfund sites which may constitute an imminent and substantial endangerment to public health and safety or the environment due to a release or threatened release of hazardous substances into the environment. The commission is proposing this delisting because the ED has determined that the Site no longer presents such an endangerment due to the remedial actions that have been performed at the Site.

The Site, including all land, structures, appurtenances, and other improvements, occupies approximately five acres at 101 East Hampton Road within the city limits of Crowley, Tarrant County, Texas. The Site also included any areas where hazardous substance(s) came to be located as a result, either directly or indirectly, of releases of hazardous substance(s) from the Site. The Tricon property has been used as an aluminum and zinc smelting and casting operation, for the production of concrete buildings, and as a facility to assemble fiberglass buildings. Barium, cadmium, chromium, lead, and zinc were the contaminants of concerns on the site.

In March 1997, a Remedial Investigation was completed for the Site to determine the nature and extent of the contamination. A Focused Feasibility Study conducted in September 1998 identified and evaluated remedial alternatives for the site. Additional sampling was performed in December 1998 to define the extent of contamination in surface and shallow subsurface soils on the Site and on the Deer Creek flood plain. During this additional sampling, no contaminated soil was located in the Deer Creek flood plain.

A Supplemental Focused Feasibility Study, dated June 1999, identified and evaluated additional remedies for the Site. For the purpose of remediation, the Site was divided into two sections: 1.) the Tricon Facility consisting of approximately two-thirds of the site from the entrance gate at East Hampton Road to the north end of the concrete slabs, and 2.) the Tricon Cap Area comprising the waste ash materials contained under the Triloc cap and the uncapped portion south of the cap. The Tricon Facility was cleaned by excavating a few small areas of contaminated soil and moving the excavated soil to the Triloc Cap Area. This cleanup was completed in July 1999. The excavated soil stored in the Triloc Cap Area was to be remediated along with the waste materials under the cap. The clean Triloc Facility was separated by a fence from the Triloc Cap Area.

Based on the calculated volume of the waste ash and contaminated soil at the Site, the TNRCC initially proposed a remedy consisting of cap repair and installation of a French drain. A public meeting was held on August 26, 1999, in Crowley, Texas to discuss the proposed remedy and to take public comments concerning the proposed remedy.

In order to respond to issues raised at the August 26, 1999 meeting, the TNRCC conducted additional investigation to further characterize the contamination in the Triloc cap area. After a review of the results from the additional sampling, further consideration of the remedial investigation results, and consideration of the public comments received at the August 26, 1999 meeting, the TNRCC amended the proposed remedy to excavation and off-site disposal of the Triloc Cap Area wastes and contaminated soil.

The remedial action at the Triloc Cap Area started in January 2001. Approximately 18,749 tons of waste materials, contaminated soil, and concrete debris were excavated and disposed of in an off-site landfill. The excavated areas were sampled and analyzed to confirm removal of wastes and contaminated soil, backfilled with clean soil, graded and covered with grass. The fence was reinstalled at the property boundary. Since the wastes and contaminated soil were removed, post closure care will not be necessary for the site. The monitoring wells installed around the site were abandoned by pulling out the well casings and plugging the wells. The Site has been cleaned to the industrial risk standard and is not appropriate for residential use. The remedial action was completed in August 2001.

Because of the remedial actions that have been performed at the Site, the ED has determined that the Site no longer presents an imminent and substantial endangerment to public health and safety and the environment. Therefore, the Site is eligible for delisting from the State Registry as provided by 30 TAC §335.344(c).

As per 30 TAC §335.344(b), the commission will hold a public meeting to receive comment on the proposed deletion. This meeting will not be a contested case hearing within the meaning of Texas Government Code, Chapter 2001. The meeting will be held on Tuesday, February 19, 2002, at 7:00 p.m. at the Crowley City Hall, 120 North Hampton, Crowley, Texas and will consist of two parts: an informal discussion period; and a formal comment period.

All persons desiring to make comments regarding the proposed deletion of the Site may do so prior to or at the public meeting. All comments submitted prior to the public meeting must be received by 5:00 p.m., February 19, 2002, and should be sent in writing to Mr. Subhash Pal, Project Manager, TNRCC Superfund Cleanup Section, Remediation Division. MC 143, P. O. Box 13087, Austin, TX 78711-3087. The public comment period for this action will end at the close of the public meeting of February 19, 2002.

A portion of the record for the Site including documents pertinent to the ED's proposed delisting are available for review during regular business hours at the Crowley Public Library, 121 North Hampton Road, Crowley, Texas, telephone (817) 297-6707. The complete public file may be obtained during regular business hours at the commission's Records Management Center, Building D, North Entrance, Room 190, 12100 Park 35 Circle, Austin, Texas 78753, telephone numbers (800) 633-9363 or (512) 239-2920. Fees are charged for photocopying file information.

For further information regarding this meeting or the Site, please call Ms. Barbara Daywood, TNRCC Community Relations at (800) 633-9363.

TRD-200200081

Paul C. Sarahan

Director, Litigation Division

Texas Natural Resource Conservation Commission

Filed: January 8, 2002



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