Waterbody Quality Assessment Report | WATERS

Causes of Impairment
TMDLs That Apply to This Waterbody
Previous Causes of Impairment Now Attaining All Uses

State: Louisiana
Waterbody ID:
Other ID: LA-030301
Location: Calcasieu River And Ship Channel-Saltwater Barrier To Moss Lake (Estuarine) (Includes Coon Island And Clooney Island Loops)
State Waterbody Type: River
EPA Waterbody Type: Rivers and Streams
Water Size: 21
Units: miles
Watershed Name: Lower Calcasieu

Waterbody History Report

Data are also available for these years: 1996

1998 Waterbody Report for Calcasieu River And Ship Channel

Waterbody Map Not Available

Features

Causes of Impairment for Reporting Year 1998

Description of this table

Cause of Impairment	Cause of Impairment Group	State TMDL Development Status
Ammonia	Ammonia	TMDL needed
Contaminated Sediments	Total Toxics	TMDL completed
Copper	Metals (other than Mercury)	TMDL completed
Mercury	Mercury	TMDL completed
Pathogens	Pathogens	TMDL needed
Priority Organics Compounds	Toxic Organics	TMDL completed

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TMDLs That Apply to this waterbody

Description of this table

TMDL Document Name	TMDL Date	TMDL Pollutant Description	TMDL Pollutant Source Type	Cause(s) of Impairment Addressed
Calcasieu River And Ship Channel - Saltwater Barrier To Moss Lake (Estuarine) Includes Coon Island And Clooney Island Loops	Mar-29-2002	Contaminated Sediments (Mercury)	Point/Nonpoint Source	Mercury; Priority Organics Compounds; Contaminated Sediments; Copper
Calcasieu River And Ship Channel - Saltwater Barrier To Moss Lake (Estuarine) Includes Coon Island And Clooney Island Loops	Mar-29-2002	Contaminated Sediments (PAHs)	Point/Nonpoint Source	Copper; Priority Organics Compounds; Mercury; Contaminated Sediments
Calcasieu River And Ship Channel - Saltwater Barrier To Moss Lake (Estuarine) Includes Coon Island And Clooney Island Loops	Mar-29-2002	Copper	Point/Nonpoint Source	Priority Organics Compounds; Copper; Mercury; Contaminated Sediments
Calcasieu River And Ship Channel - Saltwater Barrier To Moss Lake (Estuarine) Includes Coon Island And Clooney Island Loops	Mar-29-2002	Mercury	Point/Nonpoint Source	Priority Organics Compounds; Contaminated Sediments; Mercury; Copper
Calcasieu River And Ship Channel - Saltwater Barrier To Moss Lake (Estuarine) Includes Coon Island And Clooney Island Loops	Mar-29-2002	Polycyclic Aromatic Hydrocarbons (PAHs) (Aquatic Ecosystems)	Point/Nonpoint Source	Contaminated Sediments; Priority Organics Compounds; Copper; Mercury

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Previous Causes of Impairments Now Attaining All Uses

Description of this table

Cause of Impairment	Cycles Listed	WQS Attainment Date	WQS Attainment Reason	WQS Attainment Comments
Ammonia	1996, 1998	Mar-31-2005	Applicable WQS attained: no further information.
Pathogens	1996, 1998	Mar-31-2005	Applicable WQS attained: no further information.

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