Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
Designated Water Body Uses
Bayou Grand Caillou-From Bayou Pelton to Houma
Navigation Canal (Estuarine)
R 10.8 N F N N FWP DISSOLVED OXYGEN IRC 5 L
Bayou Grand Caillou-From Bayou Pelton to Houma
Navigation Canal (Estuarine)
R 10.8 N F N N OYS FECAL COLIFORM IRC 4a
Bayou Grand Caillou-From Bayou Pelton to Houma
Navigation Canal (Estuarine)
R 10.8 N F N N PCR ENTEROCOCCUS IRC 5 L
Bayou Petit Caillou-From Bayou Terrebonne to La.
Highway 24 bridge
R 5.2 F F N N FWP DISSOLVED OXYGEN IRC 4a
Bayou Petit Caillou-From Bayou Terrebonne to La.
Highway 24 bridge
R 5.2 F F N N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
Bayou Petit Caillou-From Bayou Terrebonne to La.
Highway 24 bridge
R 5.2 F F N N OYS FECAL COLIFORM IRC 4a
Bayou Petit Caillou-From La. Highway 24 bridge to
Boudreaux Canal (Estuarine)
R 11.2 N F N N FWP DISSOLVED OXYGEN IRC 4a
Bayou Petit Caillou-From La. Highway 24 bridge to
Boudreaux Canal (Estuarine)
R 11.2 N F N N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
Bayou Petit Caillou-From La. Highway 24 bridge to
Boudreaux Canal (Estuarine)
R 11.2 N F N N OYS FECAL COLIFORM IRC 4a
Bayou Petit Caillou-From La. Highway 24 bridge to
Boudreaux Canal (Estuarine)
R 11.2 N F N N PCR ENTEROCOCCUS IRC 5 L
LA120505_00 Bayou Du Large-From Houma to Marmande Canal R 6.7 F F N FWP CHLORIDE IRC 5 L
LA120505_00 Bayou Du Large-From Houma to Marmande Canal R 6.7 F F N FWP DISSOLVED OXYGEN IRC 4a
LA120505_00 Bayou Du Large-From Houma to Marmande Canal R 6.7 F F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
LA120505_00 Bayou Du Large-From Houma to Marmande Canal R 6.7 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120505_00 Bayou Du Large-From Houma to Marmande Canal R 6.7 F F N FWP PHOSPHORUS, TOTAL IRC 4a
LA120505_00 Bayou Du Large-From Houma to Marmande Canal R 6.7 F F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
Bayou Du Large-From Marmande Canal to 1/2 mile
north of St. Andrews Mission (Estuarine)
R 9.6 N F N N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
Bayou Du Large-From Marmande Canal to 1/2 mile
north of St. Andrews Mission (Estuarine)
R 9.6 N F N N OYS FECAL COLIFORM IRC 4a
Bayou Du Large-From Marmande Canal to 1/2 mile
north of St. Andrews Mission (Estuarine)
R 9.6 N F N N PCR ENTEROCOCCUS IRC 5 L
Bayou Chauvin-From ICWW to Lake Boudreaux
(Estuarine)
R 12.7 N F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
Bayou Chauvin-From ICWW to Lake Boudreaux
(Estuarine)
R 12.7 N F N PCR ENTEROCOCCUS IRC 5 L
Houma Navigation Canal-From Bayou Pelton to 1 mile
south of Bayou Grand Caillou (Estuarine)
R 12.0 N F F N OYS FECAL COLIFORM IRC 4a