| Counties: |
Dallas, Tarrant |
| Parameter: |
chlordane, DDT, DDD, DDE, dieldrin, heptachlor epoxide, and
polychlorinated biphenyls (PCBs) in fish tissue |
| Basins: |
Trinity River |
| Segments: |
0805, 0841, 0841A |
Background and Goals
Seven legacy pollutants were detected in fish tissues in
portions of the Upper Trinity River, the Lower West Fork Trinity
River, and Mountain Creek Lake, all in the Dallas area. Legacy
pollutants are chemicals whose use has been banned or severely
restricted, but which still remain in the environment. The
pollutants involved include chlordane, DDT, DDD, DDE, dieldrin,
heptachlor epoxide, and PCBs, most of which were once used as
insecticides. The goal of this TMDL project is the reduction of
concentrations of fish-tissue contaminants to levels that
constitute an acceptable risk to consumers.
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TMDLs and Implementation
Plan
The following documents are available as PDF files. (Help with
PDF.)
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For More Information
For further information regarding the proposed TMDLs, please
call Roger Miranda, project manager, at 512/239-6278. Or e-mail us
at tmdl@tceq.state.tx.us
and reference the Dallas and Tarrant Counties TMDL project in the
subject line.
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