Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
Water Body Types: R = Rivers; L = Lakes; E = Estuaries; W = Wetlands; C = Coastal Waters F = Fully supporting designated use
N = Not supporting designated use
Water Body Sizes: R = Miles; L = Acres; E = Square Miles; W = Acres; C = Miles I = Insufficient data to make reliable determination
X = No data
PCR = Primary Contact Recreation (swimming)
SCR = Secondary Contact Recreation (boating) IR Category for Suspected Causes: IRC 5 = 303(d) List
FWP = Fish and Wildlife Propagation (fishing) IRC 5-Alt = 303(d) List but LDEQ will implement alternative corrective strategies
DWS = Drinking Water Supply IRC 5RC = 303(d) List but criteria revisions (Revise Criteria (RC)) are planned
ONR = Outstanding Natural Resource IRC 4a = TMDL completed
OYS = Oyster Propagation IRC 4b = Other corrective actions in place
AGR = Agriculture IRC 3 = Insufficient data to make a reliable determination
LAL = Limited Aquatic Life and Wildlife Blank = IRC 1 = No impairment, fully supporting all uses
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
LA010101_00
Atchafalaya River Headwaters and Floodplain-From Old
River Control Structure to Simmesport; includes Old
River Diversion Channel, Lower Red River, Lower Old
River
W 75,219.1 N F F PCR FECAL COLIFORM IRC 5 L
LA010201_00
Atchafalaya River Mainstem-From Simmesport to
Whiskey Bay Pilot Channel at mile 54
R 49.4 F F F
LA010301_00
West Atchafalaya Basin Floodway-From Simmesport to
Butte LaRose Bay and Henderson Lake
W 220,276.0 N F N FWP DISSOLVED OXYGEN IRC 4a
LA010301_00
West Atchafalaya Basin Floodway-From Simmesport to
Butte LaRose Bay and Henderson Lake
W 220,276.0 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA010301_00
West Atchafalaya Basin Floodway-From Simmesport to
Butte LaRose Bay and Henderson Lake
W 220,276.0 N F N PCR FECAL COLIFORM IRC 5 L
LA010301_001
Henderson Lake-Located within subsegment
LA010301_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this waterbody.
L 4,417.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA010301_002
Lake Bigeux-Located within subsegment LA010301_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this
waterbody.
L 393.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Description of Codes and Acronyms:
Use Support Codes for Designated Uses:
Designated Use
Descriptions:
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
Page 1 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA010301_003
Two o'Clock Bayou-From Louisiana Highway 190 to Craft
Lake; includes Cowan Bay, Close Lake, and Craft Lake.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC
33:IX.1123.A.et seq. No other assessments.
R 6.4 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA010401_00
East Atchafalaya Basin and Morganza Floodway South to
Interstate 10 Canal
W 210,252.0 F F F
LA010401_001
Big Alabama-Located within subsegment LA010401_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this waterbody.
R 12.6 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA010401_002
Little Alabama Bayou-Located within subsegment
LA010401_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this waterbody.
R 9.2 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA010501_00
Lower Atchafalaya Basin Floodway-From Whiskey Bay
Pilot Channel at mile 54 to US Highway 90 bridge in
Morgan City; includes Grand Lake and Six-Mile Lake
W 356,046.0 F F N F FWP DISSOLVED OXYGEN IRC 5 L
LA010501_001
I-10 Canal-Located within subsegment LA010501_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this
waterbody.
R 7.2 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA010501_002
Work Canal-Located within subsegment LA010501_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this
waterbody.
R 10.4 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA010501_00533411
Bristow Bayou-Located within subsegment
LA010501_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this waterbody.
R 10.3 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA010502_00
Intracoastal Waterway (ICWW)-Morgan City-Port Allen
Route from Bayou Sorrel Lock to Morgan City
R 33.6 F F F F
Page 2 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA010601_00 Crow Bayou, Bayou Blue, and Tributaries R 28.2 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA010601_00 Crow Bayou, Bayou Blue, and Tributaries R 28.2 N F N PCR FECAL COLIFORM IRC 5 L
LA010701_00 Bayou Teche-From Berwick to Wax Lake Outlet R 13.9 F F N N DWS COLOR IRC 5 L
LA010701_00 Bayou Teche-From Berwick to Wax Lake Outlet R 13.9 F F N N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA010801_00
Atchafalaya River-From ICWW south of Morgan City to
Atchafalaya Bay; includes Sweetbay Lake and Bayou
Shaffer
R 24.3 F F F
LA010802_00
Wax Lake Outlet-From ICWW to Atchafalaya Bay;
includes Wax Lake
R 6.7 F F F
LA010803_00
Intracoastal Waterway-From Bayou Boeuf Lock to Bayou
Sale; includes Wax Lake Outlet to US Highway 90
R 23.6 F F F
LA010901_00
Atchafalaya Bay and Delta and Gulf Waters to the State
3 mile limit
E 369.2 N F N N FWP DISSOLVED OXYGEN IRC 5 L
LA010901_00
Atchafalaya Bay and Delta and Gulf Waters to the State
3 mile limit
E 369.2 N F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA010901_00
Atchafalaya Bay and Delta and Gulf Waters to the State
3 mile limit
E 369.2 N F N N OYS FECAL COLIFORM IRC 5 M
LA010901_00
Atchafalaya Bay and Delta and Gulf Waters to the State
3 mile limit
E 369.2 N F N N PCR ENTEROCOCCUS IRC 5 L
LA020101_00
Bayou Verret, Bayou Chevreuil, Bayou Citamon, and
Grand Bayou
R 40.1 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA020101_00
Bayou Verret, Bayou Chevreuil, Bayou Citamon, and
Grand Bayou
R 40.1 N F N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA020101_00
Bayou Verret, Bayou Chevreuil, Bayou Citamon, and
Grand Bayou
R 40.1 N F N F FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA020101_00
Bayou Verret, Bayou Chevreuil, Bayou Citamon, and
Grand Bayou
R 40.1 N F N F FWP PHOSPHORUS, TOTAL IRC 4a
LA020101_00
Bayou Verret, Bayou Chevreuil, Bayou Citamon, and
Grand Bayou
R 40.1 N F N F PCR FECAL COLIFORM IRC 5 L
LA020102_00 Bayou Boeuf, Halpin Canal, and Theriot Canal R 23.4 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA020102_00 Bayou Boeuf, Halpin Canal, and Theriot Canal R 23.4 F F N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA020102_00 Bayou Boeuf, Halpin Canal, and Theriot Canal R 23.4 F F N F FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA020102_00 Bayou Boeuf, Halpin Canal, and Theriot Canal R 23.4 F F N F FWP PHOSPHORUS, TOTAL IRC 4a
LA020103_00 Lake Boeuf L 1,760.0 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA020201_00
Bayou Des Allemands-From Lac Des Allemands to US
Highway 90 (Scenic)
R 7.1 F F N N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
Page 3 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA020201_00
Bayou Des Allemands-From Lac Des Allemands to US
Highway 90 (Scenic)
R 7.1 F F N N FWP TURBIDITY IRC 5RC L
LA020201_00
Bayou Des Allemands-From Lac Des Allemands to US
Highway 90 (Scenic)
R 7.1 F F N N ONR TURBIDITY IRC 5RC L
LA020202_00 Lac Des Allemands L 16,596.0 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA020202_00 Lac Des Allemands L 16,596.0 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA020301_00
Bayou Des Allemands-From US Highway 90 to Lake
Salvador (Scenic)
R 13.7 F F N N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA020301_00
Bayou Des Allemands-From US Highway 90 to Lake
Salvador (Scenic)
R 13.7 F F N N FWP TURBIDITY IRC 5 L
LA020301_00
Bayou Des Allemands-From US Highway 90 to Lake
Salvador (Scenic)
R 13.7 F F N N ONR TURBIDITY IRC 5 L
LA020302_00 Bayou Gauche R 3.2 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA020303_00 Lake Cataouatche and Tributaries L 9,978.0 F F F
LA020304_00 Lake Salvador L 49,477.0 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA020304_00 Lake Salvador L 49,477.0 F F N FWP TURBIDITY IRC 5RC L
LA020305_00
Luling Wetland-Forested wetland located 1.8 miles
south of US Highway 90 at Luling, east of the Luling
wastewater treatment pond, bordered by Cousin Canal
to the west and Louisiana Cypress Lumber Canal to the
south
W 1,720.0 X F
LA020401_00
Bayou Lafourche-From Donaldsonville to ICWW at
Larose
R 67.4 N F N F FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA020401_00
Bayou Lafourche-From Donaldsonville to ICWW at
Larose
R 67.4 N F N F PCR FECAL COLIFORM IRC 4a
LA020402_00
Bayou Lafourche-From ICWW at Larose to Yankee Canal
(Estuarine)
R 15.5 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA020402_00
Bayou Lafourche-From ICWW at Larose to Yankee Canal
(Estuarine)
R 15.5 N F N PCR ENTEROCOCCUS IRC 5 L
LA020403_00
Bayou Lafourche-From Yankee Canal and saltwater
barrier to Gulf of Mexico (Estuarine)
R 23.4 N F F F PCR ENTEROCOCCUS IRC 5 L
LA020501_00 Sauls, Avondale, and Main Canals R 7.8 F F N FWP CHLORIDE IRC 5 L
LA020501_00 Sauls, Avondale, and Main Canals R 7.8 F F N FWP DISSOLVED OXYGEN IRC 4a
LA020501_00 Sauls, Avondale, and Main Canals R 7.8 F F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA020501_00 Sauls, Avondale, and Main Canals R 7.8 F F N FWP PHOSPHORUS, TOTAL IRC 4a
LA020501_00 Sauls, Avondale, and Main Canals R 7.8 F F N FWP SULFATE IRC 5 L
LA020601_00
Intracoastal Waterway-From Bayou Villars to Mississippi
River (Estuarine)
R 17.9 N F F PCR ENTEROCOCCUS IRC 5 L
Page 4 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA020701_00 Bayou Segnette-From headwaters to Bayou Villars R 12.0 F F F
LA020801_00
Intracoastal Waterway-From Larose to Bayou Villars and
Bayou Barataria (Estuarine)
R 20.2 N F N FWP TURBIDITY IRC 5RC L
LA020801_00
Intracoastal Waterway-From Larose to Bayou Villars and
Bayou Barataria (Estuarine)
R 20.2 N F N PCR ENTEROCOCCUS IRC 5 L
LA020802_00
Bayou Barataria and Barataria Waterway-From ICWW to
Bayou Rigolettes (Estuarine)
R 8.0 N F F PCR ENTEROCOCCUS IRC 5 L
LA020901_00
Bayou Rigolettes and Bayou Perot to Little Lake
(Estuarine)
E 21.6 F F N F FWP TURBIDITY IRC 5RC L
LA020902_00 Little Lake (Estuarine) E 31.3 F F N N FWP TURBIDITY IRC 5RC L
LA020902_00 Little Lake (Estuarine) E 31.3 F F N N OYS FECAL COLIFORM IRC 5 M
LA020903_00
Barataria Waterway - From Bayou Rigolettes to Grand
Bayou (Estuarine)
E 2.2 F F F
LA020904_00 Wilkinson Canal and Wilkinson Bayou (Estuarine) R 19.5 F F F N OYS FECAL COLIFORM IRC 5 M
LA020905_00 Bayou Moreau (Estuarine) R 7.2 N F F F PCR ENTEROCOCCUS IRC 5 L
LA020906_00 Bay Rambo (Estuarine) E 2.6 N F F F PCR ENTEROCOCCUS IRC 5 L
LA020907_00
Bay Sansbois, Lake Judge Perez, and Bay De La Cheniere
(Estuarine)
E 6.0 F F F F
LA021001_00
Lake Washington, Bastian Bay, Adams Bay, Scofield Bay,
Coquette Bay, Tambour Bay, Spanish Pass, and Bay
Jacques (Estuarine)
E 175.0 F F F F
LA021101_00
Barataria Bay; includes Caminada Bay, Hackberry Bay,
Bay Batiste, and Bay Long (Estuarine)
E 196.6 F F F F
LA021102_00
Barataria Basin Coastal Bays and Gulf Waters to the
State 3 mile limit
E 282.9 N F N N FWP DISSOLVED OXYGEN IRC 5 L
LA021102_00
Barataria Basin Coastal Bays and Gulf Waters to the
State 3 mile limit
E 282.9 N F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA021102_00
Barataria Basin Coastal Bays and Gulf Waters to the
State 3 mile limit
E 282.9 N F N N OYS FECAL COLIFORM IRC 5 M
LA021102_00
Barataria Basin Coastal Bays and Gulf Waters to the
State 3 mile limit
E 282.9 N F N N PCR ENTEROCOCCUS IRC 5 L
LA021102_001
Fourchon Beach 1-Located within subsegment
LA021102_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et. seq. No other assessment is made
for this waterbody.
C 0.9 N PCR ENTEROCOCCUS IRC 5 L
Page 5 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA021102_002
Grand Isle and Grand Isle State Park Beaches-Located
within subsegment LA021102_00. This unit is added for
advisory tracking purposes only and is not a subsegment
as defined by LAC 33:IX.1123.A. et seq. No other
assessment is made for this waterbody.
C 7.2 N PCR ENTEROCOCCUS IRC 5 L
LA021102_003
Elmers Island Beach-Located within subsegment
LA021102_00. This unit is added for swimming advisory
tracking purposes only and is not a subsegment as
defined by LAC 33:IX.1123.A. et seq. No other
assessment is made for this bayou.
C 2.3 N PCR ENTEROCOCCUS IRC 5 L
LA030101_00 Calcasieu River-From headwaters to La. Highway 8 R 14.8 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA030102_00
Calcasieu River-From La. Highway 8 to the Rapides-Allen
Parish line (Scenic)
R 75.0 N F F F F PCR FECAL COLIFORM IRC 5 L
LA030103_00
Calcasieu River-From Rapides-Allen Parish line to Marsh
Bayou (Scenic)
R 74.3 N F N N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA030103_00
Calcasieu River-From Rapides-Allen Parish line to Marsh
Bayou (Scenic)
R 74.3 N F N N F ONR TURBIDITY IRC 5 L
LA030103_00
Calcasieu River-From Rapides-Allen Parish line to Marsh
Bayou (Scenic)
R 74.3 N F N N F PCR FECAL COLIFORM IRC 5 L
LA030104_00 Mill Creek-From headwaters to Calcasieu River R 24.8 N N N FWP DISSOLVED OXYGEN IRC 4a
LA030104_00 Mill Creek-From headwaters to Calcasieu River R 24.8 N N N PCR FECAL COLIFORM IRC 5 L
LA030104_00 Mill Creek-From headwaters to Calcasieu River R 24.8 N N N SCR FECAL COLIFORM IRC 5 L
LA030105_00
Kinder Ditch-From headwaters of unnamed tributary to
confluence with Calcasieu River
R 10.3 N N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA030105_00
Kinder Ditch-From headwaters of unnamed tributary to
confluence with Calcasieu River
R 10.3 N N SCR FECAL COLIFORM IRC 5 L
LA030201_00
Calcasieu River-From Marsh Bayou to saltwater barrier
(Scenic)
R 24.7 N F N N F FWP DISSOLVED OXYGEN IRC 5 L
LA030201_00
Calcasieu River-From Marsh Bayou to saltwater barrier
(Scenic)
R 24.7 N F N N F FWP LEAD IRC 5 L
LA030201_00
Calcasieu River-From Marsh Bayou to saltwater barrier
(Scenic)
R 24.7 N F N N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA030201_00
Calcasieu River-From Marsh Bayou to saltwater barrier
(Scenic)
R 24.7 N F N N F ONR TURBIDITY IRC 5 L
LA030201_00
Calcasieu River-From Marsh Bayou to saltwater barrier
(Scenic)
R 24.7 N F N N F PCR ENTEROCOCCUS IRC 5 L
Page 6 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA030301_00
Calcasieu River and Ship Channel-From saltwater barrier
to Moss Lake; includes Ship Channel, Coon Island Loop,
and Clooney Island Loop (Estuarine)
R 28.0 N F N FWP DIOXIN - FISH CONSUMPTION ADVISORY IRC 5 L
LA030301_00
Calcasieu River and Ship Channel-From saltwater barrier
to Moss Lake; includes Ship Channel, Coon Island Loop,
and Clooney Island Loop (Estuarine)
R 28.0 N F N FWP FURAN COMPOUNDS IRC 5 L
LA030301_00
Calcasieu River and Ship Channel-From saltwater barrier
to Moss Lake; includes Ship Channel, Coon Island Loop,
and Clooney Island Loop (Estuarine)
R 28.0 N F N FWP PCBS - FISH CONSUMPTION ADVISORY IRC 4a
LA030301_00
Calcasieu River and Ship Channel-From saltwater barrier
to Moss Lake; includes Ship Channel, Coon Island Loop,
and Clooney Island Loop (Estuarine)
R 28.0 N F N PCR ENTEROCOCCUS IRC 5 L
LA030302_00 Lake Charles E 1.7 N F N FWP DIOXIN - FISH CONSUMPTION ADVISORY IRC 5 L
LA030302_00 Lake Charles E 1.7 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA030302_00 Lake Charles E 1.7 N F N FWP FURAN COMPOUNDS IRC 5 L
LA030302_00 Lake Charles E 1.7 N F N FWP PCBS - FISH CONSUMPTION ADVISORY IRC 4a
LA030302_00 Lake Charles E 1.7 N F N PCR ENTEROCOCCUS IRC 5 L
LA030302_001
Lake Charles North Beach-Located within subsegment
LA030302_00. This unit is added for swimming advisory
tracking purposes only and is not a subsegment as
defined by LAC 33:IX.1123.A. et seq. No other
assessment is made for this bayou.
C 0.4 N PCR ENTEROCOCCUS IRC 5 L
LA030302_002
Lake Charles South Beach-Located within subsegment
LA030302_00. This unit is added for swimming advisory
tracking purposes only and is not a subsegment as
defined by LAC 33:IX.1123.A. et seq. No other
assessment is made for this bayou.
C 0.2 N PCR ENTEROCOCCUS IRC 5 L
LA030303_00 Prien Lake E 1.5 N F N FWP DIOXIN - FISH CONSUMPTION ADVISORY IRC 5 L
LA030303_00 Prien Lake E 1.5 N F N FWP FURAN COMPOUNDS IRC 5 L
LA030303_00 Prien Lake E 1.5 N F N FWP PCBS - FISH CONSUMPTION ADVISORY IRC 4a
LA030303_00 Prien Lake E 1.5 N F N PCR ENTEROCOCCUS IRC 5 L
LA030304_00 Moss Lake (Estuarine) E 1.3 N F N FWP DIOXIN - FISH CONSUMPTION ADVISORY IRC 5 L
Page 7 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA030304_00 Moss Lake (Estuarine) E 1.3 N F N FWP FURAN COMPOUNDS IRC 5 L
LA030304_00 Moss Lake (Estuarine) E 1.3 N F N FWP PCBS - FISH CONSUMPTION ADVISORY IRC 4a
LA030304_00 Moss Lake (Estuarine) E 1.3 N F N PCR ENTEROCOCCUS IRC 5 L
LA030304_001
Bayou Olsen Located within subsegment LA030304_00.
This unit is added for swimming advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this bayou.
R 0.7 N PCR 1,1,2-TRICHLOROETHANE IRC 4b
LA030304_001
Bayou Olsen Located within subsegment LA030304_00.
This unit is added for swimming advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this bayou.
R 0.7 N PCR 1,2-DICHLOROETHANE IRC 4b
LA030304_001
Bayou Olsen Located within subsegment LA030304_00.
This unit is added for swimming advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this bayou.
R 0.7 N PCR CHLOROFORM IRC 4b
LA030305_00 Contraband Bayou (Estuarine) R 5.9 N F N FWP DISSOLVED OXYGEN IRC 4a
LA030305_00 Contraband Bayou (Estuarine) R 5.9 N F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA030305_00 Contraband Bayou (Estuarine) R 5.9 N F N FWP PHOSPHORUS, TOTAL IRC 4a
LA030305_00 Contraband Bayou (Estuarine) R 5.9 N F N PCR ENTEROCOCCUS IRC 5 L
LA030306_00
Bayou Verdine-south of the Houston River Canal to the
Calcasieu River (Estuarine)
R 4.0 N F N FWP 4,4'-DDT IRC 4a
LA030306_00
Bayou Verdine-south of the Houston River Canal to the
Calcasieu River (Estuarine)
R 4.0 N F N FWP METHOXYCHLOR IRC 4a
LA030306_00
Bayou Verdine-south of the Houston River Canal to the
Calcasieu River (Estuarine)
R 4.0 N F N FWP PHENOL IRC 4a
LA030306_00
Bayou Verdine-south of the Houston River Canal to the
Calcasieu River (Estuarine)
R 4.0 N F N FWP POLYCHLORINATED BIPHENYLS (PCBS) IRC 4a
LA030306_00
Bayou Verdine-south of the Houston River Canal to the
Calcasieu River (Estuarine)
R 4.0 N F N FWP
POLYCYCLIC AROMATIC
HYDROCARBONS (PAHS) (AQUATIC
ECOSYSTEMS)
IRC 4a
LA030306_00
Bayou Verdine-south of the Houston River Canal to the
Calcasieu River (Estuarine)
R 4.0 N F N FWP TURBIDITY IRC 5 L
LA030306_00
Bayou Verdine-south of the Houston River Canal to the
Calcasieu River (Estuarine)
R 4.0 N F N PCR ENTEROCOCCUS IRC 5 L
Page 8 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA030401_00
Calcasieu River-From Moss Lake to the Gulf of Mexico;
includes Ship Channel, West Cove and Monkey Island
Loop (Estuarine)
R 27.7 N F N N FWP DIOXIN - FISH CONSUMPTION ADVISORY IRC 5 L
LA030401_00
Calcasieu River-From Moss Lake to the Gulf of Mexico;
includes Ship Channel, West Cove and Monkey Island
Loop (Estuarine)
R 27.7 N F N N FWP FURAN COMPOUNDS IRC 5 L
LA030401_00
Calcasieu River-From Moss Lake to the Gulf of Mexico;
includes Ship Channel, West Cove and Monkey Island
Loop (Estuarine)
R 27.7 N F N N FWP PCBS - FISH CONSUMPTION ADVISORY IRC 4a
LA030401_00
Calcasieu River-From Moss Lake to the Gulf of Mexico;
includes Ship Channel, West Cove and Monkey Island
Loop (Estuarine)
R 27.7 N F N N OYS FECAL COLIFORM IRC 5 M
LA030401_00
Calcasieu River-From Moss Lake to the Gulf of Mexico;
includes Ship Channel, West Cove and Monkey Island
Loop (Estuarine)
R 27.7 N F N N PCR ENTEROCOCCUS IRC 5 L
LA030402_00 Calcasieu Lake E 67.4 N F N N FWP DIOXIN - FISH CONSUMPTION ADVISORY IRC 5 L
LA030402_00 Calcasieu Lake E 67.4 N F N N FWP FURAN COMPOUNDS IRC 5 L
LA030402_00 Calcasieu Lake E 67.4 N F N N FWP PCBS - FISH CONSUMPTION ADVISORY IRC 4a
LA030402_00 Calcasieu Lake E 67.4 N F N N OYS FECAL COLIFORM IRC 5 M
LA030402_00 Calcasieu Lake E 67.4 N F N N PCR ENTEROCOCCUS IRC 5 L
LA030403_00 Black Lake (Estuarine) E 5.8 N F F PCR ENTEROCOCCUS IRC 5 L
LA030501_00
Whiskey Chitto Creek-From headwaters to southern
boundary of Fort Polk Military Reservation
R 20.4 N N F PCR FECAL COLIFORM IRC 4a
LA030501_00
Whiskey Chitto Creek-From headwaters to southern
boundary of Fort Polk Military Reservation
R 20.4 N N F SCR FECAL COLIFORM IRC 4a
LA030502_00
Whiskey Chitto Creek-From the southern boundary of
Fort Polk Military Reservation to the Calcasieu River
(Scenic)
R 73.9 N F F F PCR FECAL COLIFORM IRC 5 L
LA030503_00
Six Mile Creek-East and West Forks from headwaters to
the southern boundary of Fort Polk Military Reservation
R 19.4 N F N FWP PH, LOW IRC 5 L
LA030503_00
Six Mile Creek-East and West Forks from headwaters to
the southern boundary of Fort Polk Military Reservation
R 19.4 N F N PCR FECAL COLIFORM IRC 5 L
Page 9 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA030504_00
Six Mile Creek-East and West Forks from the southern
boundary of Fort Polk Military Reservation to Whiskey
Chitto Creek (Scenic)
R 53.4 N F F F PCR FECAL COLIFORM IRC 5 L
LA030505_00
Ten Mile Creek-From headwaters to Whiskey Chitto
Creek (Scenic)
R 58.2 N N F N ONR TURBIDITY IRC 5 L
LA030505_00
Ten Mile Creek-From headwaters to Whiskey Chitto
Creek (Scenic)
R 58.2 N N F N PCR FECAL COLIFORM IRC 5 L
LA030505_00
Ten Mile Creek-From headwaters to Whiskey Chitto
Creek (Scenic)
R 58.2 N N F N SCR FECAL COLIFORM IRC 5 L
LA030506_00
Bundicks Creek-From headwaters to Bundicks Lake
(Scenic)
R 49.0 N F F PCR FECAL COLIFORM IRC 5 L
LA030507_00 Bundicks Lake L 1,448.4 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA030508_00
Bundicks Creek-From Bundicks Lake to Whiskey Chitto
Creek (Scenic)
R 22.6 N F N FWP PH, LOW IRC 5 L
LA030508_00
Bundicks Creek-From Bundicks Lake to Whiskey Chitto
Creek (Scenic)
R 22.6 N F N PCR FECAL COLIFORM IRC 5 L
LA030601_00
Barnes Creek-From headwaters to Little Barnes Creek
(Scenic)
R 15.8 F F
LA030602_00
Barnes Creek-From Little Barnes Creek to Calcasieu River
(Scenic)
R 40.0 N N N FWP DISSOLVED OXYGEN IRC 4a
LA030602_00
Barnes Creek-From Little Barnes Creek to Calcasieu River
(Scenic)
R 40.0 N N N PCR FECAL COLIFORM IRC 5 L
LA030602_00
Barnes Creek-From Little Barnes Creek to Calcasieu River
(Scenic)
R 40.0 N N N SCR FECAL COLIFORM IRC 5 L
LA030603_00 Marsh Bayou-From headwaters to Calcasieu River R 16.3 N N N FWP DISSOLVED OXYGEN IRC 4a
LA030603_00 Marsh Bayou-From headwaters to Calcasieu River R 16.3 N N N PCR FECAL COLIFORM IRC 4a
LA030603_00 Marsh Bayou-From headwaters to Calcasieu River R 16.3 N N N SCR FECAL COLIFORM IRC 4a
LA030701_00 Bayou Serpent-From headwaters to Calcasieu River R 33.8 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA030701_00 Bayou Serpent-From headwaters to Calcasieu River R 33.8 F F N F FWP FIPRONIL IRC 4a
LA030701_00 Bayou Serpent-From headwaters to Calcasieu River R 33.8 F F N F FWP LEAD IRC 4a
LA030702_00 English Bayou-From headwaters to Calcasieu River R 10.3 N N N F FWP DISSOLVED OXYGEN IRC 4a
LA030702_00 English Bayou-From headwaters to Calcasieu River R 10.3 N N N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA030702_00 English Bayou-From headwaters to Calcasieu River R 10.3 N N N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA030702_00 English Bayou-From headwaters to Calcasieu River R 10.3 N N N F FWP PHOSPHORUS, TOTAL IRC 4a
LA030702_00 English Bayou-From headwaters to Calcasieu River R 10.3 N N N F FWP TURBIDITY IRC 4a
LA030702_00 English Bayou-From headwaters to Calcasieu River R 10.3 N N N F PCR FECAL COLIFORM IRC 5 L
LA030702_00 English Bayou-From headwaters to Calcasieu River R 10.3 N N N F SCR FECAL COLIFORM IRC 5 L
Page 10 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA030801_00
West Fork Calcasieu River-From confluence with
Beckwith Creek and Hickory Branch to mainstem of
Calcasieu River
R 16.5 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA030801_00
West Fork Calcasieu River-From confluence with
Beckwith Creek and Hickory Branch to mainstem of
Calcasieu River
R 16.5 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA030801_00
West Fork Calcasieu River-From confluence with
Beckwith Creek and Hickory Branch to mainstem of
Calcasieu River
R 16.5 N F N F PCR FECAL COLIFORM IRC 5 L
LA030802_00
Hickory Branch-From headwaters to West Fork
Calcasieu River (Scenic)
R 50.4 N F N F FWP DISSOLVED OXYGEN IRC 5 L
LA030802_00
Hickory Branch-From headwaters to West Fork
Calcasieu River (Scenic)
R 50.4 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA030802_00
Hickory Branch-From headwaters to West Fork
Calcasieu River (Scenic)
R 50.4 N F N F FWP PH, LOW IRC 5 L
LA030802_00
Hickory Branch-From headwaters to West Fork
Calcasieu River (Scenic)
R 50.4 N F N F PCR FECAL COLIFORM IRC 4a
LA030803_00
Beckwith Creek-From headwaters to West Fork
Calcasieu River (Scenic)
R 64.0 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA030803_00
Beckwith Creek-From headwaters to West Fork
Calcasieu River (Scenic)
R 64.0 N F N F FWP PH, LOW IRC 5 L
LA030803_00
Beckwith Creek-From headwaters to West Fork
Calcasieu River (Scenic)
R 64.0 N F N F PCR FECAL COLIFORM IRC 5 L
LA030804_00
Little River-From headwaters to West Fork Calcasieu
River
R 14.4 N F N FWP DISSOLVED OXYGEN IRC 4a
LA030804_00
Little River-From headwaters to West Fork Calcasieu
River
R 14.4 N F N FWP LEAD IRC 4a
LA030804_00
Little River-From headwaters to West Fork Calcasieu
River
R 14.4 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA030804_00
Little River-From headwaters to West Fork Calcasieu
River
R 14.4 N F N PCR FECAL COLIFORM IRC 5 L
LA030805_00
Indian Bayou-From headwaters to West Fork Calcasieu
River
R 19.1 N N N F FWP DISSOLVED OXYGEN IRC 4a
LA030805_00
Indian Bayou-From headwaters to West Fork Calcasieu
River
R 19.1 N N N F PCR FECAL COLIFORM IRC 4a
LA030805_00
Indian Bayou-From headwaters to West Fork Calcasieu
River
R 19.1 N N N F SCR FECAL COLIFORM IRC 4a
LA030806_00
Houston River-From Bear Head Creek at La. Highway 12
to West Fork Calcasieu River
R 38.6 N F N F FWP DISSOLVED OXYGEN IRC 4a
Page 11 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA030806_00
Houston River-From Bear Head Creek at La. Highway 12
to West Fork Calcasieu River
R 38.6 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA030806_00
Houston River-From Bear Head Creek at La. Highway 12
to West Fork Calcasieu River
R 38.6 N F N F PCR FECAL COLIFORM IRC 5 L
LA030807_00
Bear Head Creek-From headwaters to Houston River at
La. Highway 12
R 49.2 F F N FWP DISSOLVED OXYGEN IRC 4a
LA030807_00
Bear Head Creek-From headwaters to Houston River at
La. Highway 12
R 49.2 F F N FWP LEAD IRC 4a
LA030807_00
Bear Head Creek-From headwaters to Houston River at
La. Highway 12
R 49.2 F F N FWP PH, LOW IRC 5RC L
LA030808_00
Houston River Canal-From 1 mile west of La. Highway
388 to its terminuses at Mossville and the Houston River
R 14.0 F F F N F DWS COLOR IRC 5 L
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N FWP DIOXIN - FISH CONSUMPTION ADVISORY IRC 5 L
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N FWP DISSOLVED OXYGEN IRC 4a
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N FWP FURAN COMPOUNDS IRC 5 L
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N FWP PCBS - FISH CONSUMPTION ADVISORY IRC 4a
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N FWP PHOSPHORUS, TOTAL IRC 4a
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N FWP POLYCHLORINATED BIPHENYLS (PCBS) IRC 4a
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N PCR DIOXIN IRC 5 L
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N PCR ENTEROCOCCUS IRC 5 L
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N PCR FURAN COMPOUNDS IRC 5 L
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N PCR PCBS IN SEDIMENT IRC 4a
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N SCR DIOXIN IRC 5 L
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N SCR FECAL COLIFORM IRC 5 L
Page 12 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N SCR FURAN COMPOUNDS IRC 5 L
LA030901_00
Bayou D'Inde-From headwaters to Calcasieu River
(Estuarine)
R 12.3 N N N SCR PCBS IN SEDIMENT IRC 4a
LA031001_00 Bayou Choupique-From headwaters to ICWW
(Estuarine)
R 20.3 N F N FWP DISSOLVED OXYGEN IRC 4a
LA031001_00 Bayou Choupique-From headwaters to ICWW
(Estuarine)
R 20.3 N F N PCR ENTEROCOCCUS IRC 5 L
LA031002_00
Intracoastal Waterway-From West Calcasieu River Basin
boundary to Calcasieu Lock (Estuarine)
R 9.8 N F F PCR ENTEROCOCCUS IRC 5 L
LA031101_00
Intracoastal Waterway-From Calcasieu River to Creole
Canal at Gibbstown
R 19.2 F F F
LA031201_00
Calcasieu River Basin Coastal Bays and Gulf Waters to
the State 3 mile limit
E 56.4 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA031201_00
Calcasieu River Basin Coastal Bays and Gulf Waters to
the State 3 mile limit
E 56.4 N F N F PCR ENTEROCOCCUS IRC 5 L
LA031201_001
Holly Beach-Located within subsegment LA031201_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et. seq. No other assessment is made for this
waterbody.
C 3.4 N PCR ENTEROCOCCUS IRC 5 L
LA040101_00
Comite River, Comite Creek, and Little Comite Creek-
From Mississippi state line to Wilson-Clinton Highway
R 18.3 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA040101_00
Comite River, Comite Creek, and Little Comite Creek-
From Mississippi state line to Wilson-Clinton Highway
R 18.3 F F N FWP PH, LOW IRC 5 L
LA040102_00
Comite River-From Wilson-Clinton Highway to White
Bayou (Scenic)
R 38.0 F F N N FWP TURBIDITY IRC 5 L
LA040102_00
Comite River-From Wilson-Clinton Highway to White
Bayou (Scenic)
R 38.0 F F N N ONR TURBIDITY IRC 5 L
LA040103_00 Comite River-From White Bayou to Amite River R 12.3 N F F PCR FECAL COLIFORM IRC 4a
LA040201_00 Bayou Manchac-From headwaters to Amite River R 18.3 F F N FWP CHLORIDE IRC 5 L
LA040201_00 Bayou Manchac-From headwaters to Amite River R 18.3 F F N FWP DISSOLVED OXYGEN IRC 4a
LA040201_00 Bayou Manchac-From headwaters to Amite River R 18.3 F F N FWP SULFATE IRC 5 L
LA040201_00 Bayou Manchac-From headwaters to Amite River R 18.3 F F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA040202_00
Ward Creek-From headwaters to confluence with
Dawson Creek
R 8.8 N N N FWP CHLORIDE IRC 5 L
Page 13 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA040202_00
Ward Creek-From headwaters to confluence with
Dawson Creek
R 8.8 N N N FWP DISSOLVED OXYGEN IRC 4a
LA040202_00
Ward Creek-From headwaters to confluence with
Dawson Creek
R 8.8 N N N FWP SULFATE IRC 5 L
LA040202_00
Ward Creek-From headwaters to confluence with
Dawson Creek
R 8.8 N N N PCR FECAL COLIFORM IRC 4a
LA040202_00
Ward Creek-From headwaters to confluence with
Dawson Creek
R 8.8 N N N SCR FECAL COLIFORM IRC 4a
LA040301_00
Amite River-From Mississippi state line to La. Highway
37 (Scenic)
R 28.7 F F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040301_00
Amite River-From Mississippi state line to La. Highway
37 (Scenic)
R 28.7 F F N N FWP PH, LOW IRC 5 L
LA040301_00
Amite River-From Mississippi state line to La. Highway
37 (Scenic)
R 28.7 F F N N FWP TURBIDITY IRC 4a
LA040301_00
Amite River-From Mississippi state line to La. Highway
37 (Scenic)
R 28.7 F F N N ONR TURBIDITY IRC 4a
LA040302_00
Amite River-From La. Highway 37 to LMRAP Ecoregion
boundary
R 46.9 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040302_00
Amite River-From La. Highway 37 to LMRAP Ecoregion
boundary
R 46.9 N F N FWP TURBIDITY IRC 5 L
LA040302_00
Amite River-From La. Highway 37 to LMRAP Ecoregion
boundary
R 46.9 N F N PCR FECAL COLIFORM IRC 4a
LA040303_00
Amite River-From Amite River Diversion Canal to Lake
Maurepas
R 28.1 F F N FWP DISSOLVED OXYGEN IRC 4a
LA040303_00
Amite River-From Amite River Diversion Canal to Lake
Maurepas
R 28.1 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA040303_00
Amite River-From Amite River Diversion Canal to Lake
Maurepas
R 28.1 F F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA040303_00
Amite River-From Amite River Diversion Canal to Lake
Maurepas
R 28.1 F F N FWP PHOSPHORUS, TOTAL IRC 4a
LA040304_00 Grays Creek-From headwaters to Amite River R 18.3 N N N FWP DISSOLVED OXYGEN IRC 4a
LA040304_00 Grays Creek-From headwaters to Amite River R 18.3 N N N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA040304_00 Grays Creek-From headwaters to Amite River R 18.3 N N N FWP PHOSPHORUS, TOTAL IRC 4a
LA040304_00 Grays Creek-From headwaters to Amite River R 18.3 N N N FWP SULFATE IRC 5 L
LA040304_00 Grays Creek-From headwaters to Amite River R 18.3 N N N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA040304_00 Grays Creek-From headwaters to Amite River R 18.3 N N N PCR FECAL COLIFORM IRC 4a
LA040304_00 Grays Creek-From headwaters to Amite River R 18.3 N N N SCR FECAL COLIFORM IRC 4a
Page 14 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA040305_00
Colyell Bay; includes Colyell Creek and Middle Colyell
Creek-From Hood Road to Amite River
R 11.6 F F N FWP DISSOLVED OXYGEN IRC 4a
LA040305_00
Colyell Bay; includes Colyell Creek and Middle Colyell
Creek-From Hood Road to Amite River
R 11.6 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040305_00
Colyell Bay; includes Colyell Creek and Middle Colyell
Creek-From Hood Road to Amite River
R 11.6 F F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA040305_00
Colyell Bay; includes Colyell Creek and Middle Colyell
Creek-From Hood Road to Amite River
R 11.6 F F N FWP PHOSPHORUS, TOTAL IRC 4a
LA040305_00
Colyell Bay; includes Colyell Creek and Middle Colyell
Creek-From Hood Road to Amite River
R 11.6 F F N FWP SULFATE IRC 5 L
LA040306_00
Amite River-From LMRAP Ecoregion boundary to Amite
River Diversion Canal
R 15.7 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA040306_00
Amite River-From LMRAP Ecoregion boundary to Amite
River Diversion Canal
R 15.7 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040306_00
Amite River-From LMRAP Ecoregion boundary to Amite
River Diversion Canal
R 15.7 F F N FWP SULFATE IRC 5 L
LA040306_00
Amite River-From LMRAP Ecoregion boundary to Amite
River Diversion Canal
R 15.7 F F N FWP TURBIDITY IRC 5 L
LA040307_00 West Colyell Creek-From headwaters to Hood Road R 20.7 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040307_00 West Colyell Creek-From headwaters to Hood Road R 20.7 N F N FWP SULFATE IRC 5 L
LA040307_00 West Colyell Creek-From headwaters to Hood Road R 20.7 N F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA040307_00 West Colyell Creek-From headwaters to Hood Road R 20.7 N F N PCR FECAL COLIFORM IRC 4a
LA040308_00 Middle Colyell Creek-From headwaters to Hood Road R 21.1 F F N FWP CHLORIDE IRC 5 L
LA040308_00 Middle Colyell Creek-From headwaters to Hood Road R 21.1 F F N FWP DISSOLVED OXYGEN IRC 4a
LA040308_00 Middle Colyell Creek-From headwaters to Hood Road R 21.1 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040308_00 Middle Colyell Creek-From headwaters to Hood Road R 21.1 F F N FWP SULFATE IRC 5 L
LA040308_00 Middle Colyell Creek-From headwaters to Hood Road R 21.1 F F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA040309_00
Colyell Creek-From headwaters to confluence with, and
including, Little Colyell Creek
R 33.2 F F N FWP DISSOLVED OXYGEN IRC 4a
LA040309_00
Colyell Creek-From headwaters to confluence with, and
including, Little Colyell Creek
R 33.2 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040309_00
Colyell Creek-From headwaters to confluence with, and
including, Little Colyell Creek
R 33.2 F F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
Page 15 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA040309_00
Colyell Creek-From headwaters to confluence with, and
including, Little Colyell Creek
R 33.2 F F N FWP PHOSPHORUS, TOTAL IRC 4a
LA040309_00
Colyell Creek-From headwaters to confluence with, and
including, Little Colyell Creek
R 33.2 F F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA040401_00
Blind River-From Amite River Diversion Canal to Lake
Maurepas (Scenic)
R 5.1 N F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA040401_00
Blind River-From Amite River Diversion Canal to Lake
Maurepas (Scenic)
R 5.1 N F N N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA040401_00
Blind River-From Amite River Diversion Canal to Lake
Maurepas (Scenic)
R 5.1 N F N N FWP TURBIDITY IRC 4a
LA040401_00
Blind River-From Amite River Diversion Canal to Lake
Maurepas (Scenic)
R 5.1 N F N N ONR TURBIDITY IRC 4a
LA040401_00
Blind River-From Amite River Diversion Canal to Lake
Maurepas (Scenic)
R 5.1 N F N N PCR TEMPERATURE IRC 5 L
LA040402_00
Amite River Diversion Canal-From Amite River to Blind
River
R 10.2 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040403_00
Blind River-From headwaters to Amite River Diversion
Canal (Scenic)
R 20.3 N F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA040403_00
Blind River-From headwaters to Amite River Diversion
Canal (Scenic)
R 20.3 N F N N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA040403_00
Blind River-From headwaters to Amite River Diversion
Canal (Scenic)
R 20.3 N F N N ONR TURBIDITY IRC 5 L
LA040403_00
Blind River-From headwaters to Amite River Diversion
Canal (Scenic)
R 20.3 N F N N PCR TEMPERATURE IRC 5 L
LA040403_00555632
Petite Amite River-Located within subsegment
LA040403_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this waterbody.
R 6.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040404_00 New River-From headwaters to New River Canal R 23.2 F F N FWP DISSOLVED OXYGEN IRC 5-alt L
LA040404_00 New River-From headwaters to New River Canal R 23.2 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA040501_00
Tickfaw River-From Mississippi state line to La. Highway
42 (Scenic)
R 69.3 F F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA040501_00
Tickfaw River-From Mississippi state line to La. Highway
42 (Scenic)
R 69.3 F F N N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA040501_00
Tickfaw River-From Mississippi state line to La. Highway
42 (Scenic)
R 69.3 F F N N ONR TURBIDITY IRC 5 L
Page 16 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA040502_00536641
Lizard Creek-Located within subsegment LA040502_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this
waterbody.
R 9.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040502_01 Tickfaw River-From La. Highway 42 to Lake Maurepas R 26.2 N F N FWP CHLORIDE IRC 5 L
LA040502_01 Tickfaw River-From La. Highway 42 to Lake Maurepas R 26.2 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA040502_01 Tickfaw River-From La. Highway 42 to Lake Maurepas R 26.2 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040502_01 Tickfaw River-From La. Highway 42 to Lake Maurepas R 26.2 N F N FWP PH, LOW IRC 5 L
LA040502_01 Tickfaw River-From La. Highway 42 to Lake Maurepas R 26.2 N F N FWP SULFATE IRC 5 L
LA040502_01 Tickfaw River-From La. Highway 42 to Lake Maurepas R 26.2 N F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA040502_01 Tickfaw River-From La. Highway 42 to Lake Maurepas R 26.2 N F N PCR TEMPERATURE IRC 5 L
LA040503_00 Natalbany River-From headwaters to La. Highway 22 R 30.7 N F N FWP DISSOLVED OXYGEN IRC 5-alt L
LA040503_00 Natalbany River-From headwaters to La. Highway 22 R 30.7 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040503_00 Natalbany River-From headwaters to La. Highway 22 R 30.7 N F N PCR FECAL COLIFORM IRC 4a
LA040504_00
Yellow Water River-From headwaters to Ponchatoula
Creek
R 12.9 N N N FWP DISSOLVED OXYGEN IRC 5 L
LA040504_00
Yellow Water River-From headwaters to Ponchatoula
Creek
R 12.9 N N N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA040504_00
Yellow Water River-From headwaters to Ponchatoula
Creek
R 12.9 N N N PCR FECAL COLIFORM IRC 4a
LA040504_00
Yellow Water River-From headwaters to Ponchatoula
Creek
R 12.9 N N N SCR FECAL COLIFORM IRC 4a
LA040505_00 Ponchatoula Creek-From headwaters to La. Highway 22 R 20.8 N N N FWP DISSOLVED OXYGEN IRC 4a
LA040505_00 Ponchatoula Creek-From headwaters to La. Highway 22 R 20.8 N N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040505_00 Ponchatoula Creek-From headwaters to La. Highway 22 R 20.8 N N N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
Page 17 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA040505_00 Ponchatoula Creek-From headwaters to La. Highway 22 R 20.8 N N N FWP PHOSPHORUS, TOTAL IRC 4a
LA040505_00 Ponchatoula Creek-From headwaters to La. Highway 22 R 20.8 N N N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA040505_00 Ponchatoula Creek-From headwaters to La. Highway 22 R 20.8 N N N PCR FECAL COLIFORM IRC 4a
LA040505_00 Ponchatoula Creek-From headwaters to La. Highway 22 R 20.8 N N N SCR FECAL COLIFORM IRC 4a
LA040506_01 Blood River-From headwaters to George White Road R 10.8 N F N FWP CHLORIDE IRC 5 L
LA040506_01 Blood River-From headwaters to George White Road R 10.8 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040506_01 Blood River-From headwaters to George White Road R 10.8 N F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA040506_01 Blood River-From headwaters to George White Road R 10.8 N F N PCR FECAL COLIFORM IRC 5 L
LA040507_00 Natalbany River-From La. Highway 22 to Tickfaw River R 9.6 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA040507_00 Natalbany River-From La. Highway 22 to Tickfaw River R 9.6 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040507_00 Natalbany River-From La. Highway 22 to Tickfaw River R 9.6 N F N PCR TEMPERATURE IRC 5 L
LA040508_00
Ponchatoula Creek-From La. Highway 22 to Natalbany
River
R 5.3 N F N FWP DISSOLVED OXYGEN IRC 4a
LA040508_00
Ponchatoula Creek-From La. Highway 22 to Natalbany
River
R 5.3 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040508_00
Ponchatoula Creek-From La. Highway 22 to Natalbany
River
R 5.3 N F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA040508_00
Ponchatoula Creek-From La. Highway 22 to Natalbany
River
R 5.3 N F N FWP PHOSPHORUS, TOTAL IRC 4a
LA040508_00
Ponchatoula Creek-From La. Highway 22 to Natalbany
River
R 5.3 N F N PCR FECAL COLIFORM IRC 4a
LA040601_00
Pass Manchac-From Lake Maurepas to Lake
Pontchartrain; includes interlacustrine waters from
North Pass to Mississippi River levee
R 39.1 F F F
LA040602_00 Lake Maurepas E 90.5 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA040602_00 Lake Maurepas E 90.5 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA040603_00 Selsers Creek-From headwaters to Sisters Road R 6.0 N F N FWP AMMONIA, TOTAL IRC 5 L
LA040603_00 Selsers Creek-From headwaters to Sisters Road R 6.0 N F N FWP DISSOLVED OXYGEN IRC 4a
Page 18 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA040603_00 Selsers Creek-From headwaters to Sisters Road R 6.0 N F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 3
LA040603_00 Selsers Creek-From headwaters to Sisters Road R 6.0 N F N FWP PH, LOW IRC 5 L
LA040603_00 Selsers Creek-From headwaters to Sisters Road R 6.0 N F N FWP PHOSPHORUS, TOTAL IRC 3
LA040603_00 Selsers Creek-From headwaters to Sisters Road R 6.0 N F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA040603_00 Selsers Creek-From headwaters to Sisters Road R 6.0 N F N PCR FECAL COLIFORM IRC 4a
LA040604_00
South Slough; includes Anderson Canal and Interstate
Highway 55 borrow pit canal to North Pass
R 11.5 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA040604_00
South Slough; includes Anderson Canal and Interstate
Highway 55 borrow pit canal to North Pass
R 11.5 N F N PCR FECAL COLIFORM IRC 5 L
LA040604_00
South Slough; includes Anderson Canal and Interstate
Highway 55 borrow pit canal to North Pass
R 11.5 N F N PCR TEMPERATURE IRC 5 L
LA040605_00
Mississippi Bayou and associated canals; includes Dutch
Bayou, Reserve Relief Canal and Hope Canal
R 24.5 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA040606_00 Selsers Creek-From Sisters Road to South Slough R 5.1 F F N FWP DISSOLVED OXYGEN IRC 4a
LA040606_00 Selsers Creek-From Sisters Road to South Slough R 5.1 F F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 3
LA040606_00 Selsers Creek-From Sisters Road to South Slough R 5.1 F F N FWP PHOSPHORUS, TOTAL IRC 3
LA040607_00
South Slough Wetland-Forested freshwater and brackish
marsh bounded to the north by South Slough, west by
Interstate Highway 55 borrow pit canal, and south by
North Pass
W 25,904.0 X N FWP CAUSE UNKNOWN IRC 4b L
LA040701_00
Tangipahoa River-From Mississippi state line to
Interstate Highway 12 (Scenic)
R 60.9 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA040701_00
Tangipahoa River-From Mississippi state line to
Interstate Highway 12 (Scenic)
R 60.9 F F N F FWP PH, LOW IRC 5 L
LA040702_00
Tangipahoa River-From Interstate Highway 12 to Lake
Pontchartrain
R 19.4 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA040702_00
Tangipahoa River-From Interstate Highway 12 to Lake
Pontchartrain
R 19.4 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040703_00 Big Creek-From headwaters to Tangipahoa River R 21.3 F F F
LA040704_00
Chappepeela Creek-From headwaters to Tangipahoa
River
R 32.1 N F F N ONR TURBIDITY IRC 5 L
LA040704_00
Chappepeela Creek-From headwaters to Tangipahoa
River
R 32.1 N F F N PCR FECAL COLIFORM IRC 5 L
Page 19 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA040705_00 Bedico Creek-From headwaters to Tangipahoa River R 17.5 F F N FWP CHLORIDE IRC 5 L
LA040705_00 Bedico Creek-From headwaters to Tangipahoa River R 17.5 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA040705_00 Bedico Creek-From headwaters to Tangipahoa River R 17.5 F F N FWP PH, LOW IRC 5 L
LA040705_00 Bedico Creek-From headwaters to Tangipahoa River R 17.5 F F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA040801_00
Tchefuncte River-From headwaters to US Highway 190;
includes tributaries (Scenic)
R 52.2 N F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA040801_00
Tchefuncte River-From headwaters to US Highway 190;
includes tributaries (Scenic)
R 52.2 N F N N FWP TURBIDITY IRC 5 L
LA040801_00
Tchefuncte River-From headwaters to US Highway 190;
includes tributaries (Scenic)
R 52.2 N F N N ONR TURBIDITY IRC 5 L
LA040801_00
Tchefuncte River-From headwaters to US Highway 190;
includes tributaries (Scenic)
R 52.2 N F N N PCR FECAL COLIFORM IRC 5 L
LA040802_01
Tchefuncte River-From US Highway 190 to Bogue Falaya
River; includes tributaries (Scenic)
R 9.0 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040803_00
Tchefuncte River-From La. Highway 22 to Lake
Pontchartrain (Estuarine)
R 2.1 N F N FWP DISSOLVED OXYGEN IRC 4a
LA040803_00
Tchefuncte River-From La. Highway 22 to Lake
Pontchartrain (Estuarine)
R 2.1 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040803_00
Tchefuncte River-From La. Highway 22 to Lake
Pontchartrain (Estuarine)
R 2.1 N F N PCR ENTEROCOCCUS IRC 5 L
LA040804_00
Bogue Falaya River-From headwaters to Tchefuncte
River (Scenic)
R 30.5 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040804_00
Bogue Falaya River-From headwaters to Tchefuncte
River (Scenic)
R 30.5 N F N F FWP TURBIDITY IRC 5 L
LA040804_00
Bogue Falaya River-From headwaters to Tchefuncte
River (Scenic)
R 30.5 N F N F PCR FECAL COLIFORM IRC 5 L
LA040805_00
Chinchuba Swamp Wetland-Forested wetland located
0.87 miles southwest of Mandeville, southeast of
Sanctuary Ridge, and north of Lake Pontchartrain
W 230.0 X F
LA040806_00
East Tchefuncte Marsh Wetland-Freshwater and
brackish marsh located just west of Mandeville,
bounded on the south by Lake Pontchartrain, the west
by Tchefuncte River, the north by La. Highway 22, and
the east by Sanctuary Ridge
W 2,783.0 X F
Page 20 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA040807_01
Ponchitolawa Creek-From headwaters to US Highway
190
R 8.0 F F N FWP DISSOLVED OXYGEN IRC 4a
LA040808_00
Tchefuncte River-From Bogue Falaya River to La.
Highway 22 (Scenic)
R 8.5 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA040808_00
Tchefuncte River-From Bogue Falaya River to La.
Highway 22 (Scenic)
R 8.5 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA040809_00 Black River-From headwaters to La. Highway 22 R 4.0 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA040809_00 Black River-From headwaters to La. Highway 22 R 4.0 N F N PCR FECAL COLIFORM IRC 5 L
LA040901_00
Bayou LaCombe-From headwaters to Interstate Highway
12 (Scenic)
R 16.1 N F N F FWP PH, LOW IRC 5RC L
LA040901_00
Bayou LaCombe-From headwaters to Interstate Highway
12 (Scenic)
R 16.1 N F N F PCR FECAL COLIFORM IRC 5 L
LA040902_00
Bayou LaCombe-From CDM Ecoregion boundary to Lake
Pontchartrain (Scenic) (Estuarine)
R 2.8 N F F F PCR ENTEROCOCCUS IRC 5 L
LA040903_00
Bayou Cane-From headwaters to US Highway 190
(Scenic)
R 3.5 F F N N FWP CHLORIDE IRC 5 L
LA040903_00
Bayou Cane-From headwaters to US Highway 190
(Scenic)
R 3.5 F F N N FWP DISSOLVED OXYGEN IRC 4a
LA040903_00
Bayou Cane-From headwaters to US Highway 190
(Scenic)
R 3.5 F F N N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA040903_00
Bayou Cane-From headwaters to US Highway 190
(Scenic)
R 3.5 F F N N FWP TURBIDITY IRC 4a
LA040903_00
Bayou Cane-From headwaters to US Highway 190
(Scenic)
R 3.5 F F N N ONR TURBIDITY IRC 4a
LA040904_00
Bayou Cane-From CDM Ecoregion boundary to Lake
Pontchartrain (Scenic) (Estuarine)
R 0.7 N F N F FWP COPPER IRC 5 L
LA040904_00
Bayou Cane-From CDM Ecoregion boundary to Lake
Pontchartrain (Scenic) (Estuarine)
R 0.7 N F N F PCR ENTEROCOCCUS IRC 5 L
LA040905_00
Bayou Liberty-From headwaters to LMRAP Ecoregion
boundary
R 5.0 N F N FWP DISSOLVED OXYGEN IRC 4a
LA040905_00
Bayou Liberty-From headwaters to LMRAP Ecoregion
boundary
R 5.0 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA040905_00
Bayou Liberty-From headwaters to LMRAP Ecoregion
boundary
R 5.0 N F N FWP PH, LOW IRC 5 L
LA040905_00
Bayou Liberty-From headwaters to LMRAP Ecoregion
boundary
R 5.0 N F N PCR FECAL COLIFORM IRC 5 L
LA040906_00
Bayou Liberty-From La. Highway 433 to Bayou
Bonfouca; includes Bayou de Chien (Estuarine)
R 1.8 N F N FWP DISSOLVED OXYGEN IRC 4a
Page 21 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA040906_00
Bayou Liberty-From La. Highway 433 to Bayou
Bonfouca; includes Bayou de Chien (Estuarine)
R 1.8 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA040906_00
Bayou Liberty-From La. Highway 433 to Bayou
Bonfouca; includes Bayou de Chien (Estuarine)
R 1.8 N F N PCR ENTEROCOCCUS IRC 5 L
LA040907_00 Bayou Bonfouca-From headwaters to La. Highway 433 R 5.9 F F N FWP COPPER IRC 5 L
LA040907_00 Bayou Bonfouca-From headwaters to La. Highway 433 R 5.9 F F N FWP DISSOLVED OXYGEN IRC 4a
LA040908_00
Bayou Bonfouca-From CDM Ecoregion boundary to Lake
Pontchartrain (Estuarine)
R 3.7 N F N FWP DISSOLVED OXYGEN IRC 4a
LA040908_00
Bayou Bonfouca-From CDM Ecoregion boundary to Lake
Pontchartrain (Estuarine)
R 3.7 N F N PCR ENTEROCOCCUS IRC 5 L
LA040909_00
W-14 Main Diversion Canal-From headwaters to Salt
Bayou
R 6.3 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA040909_00
W-14 Main Diversion Canal-From headwaters to Salt
Bayou
R 6.3 N F N PCR FECAL COLIFORM IRC 4a
LA040910_00
Salt Bayou-From headwaters to Lake Pontchartrain
(Estuarine)
R 5.1 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA040910_00
Salt Bayou-From headwaters to Lake Pontchartrain
(Estuarine)
R 5.1 N F N PCR ENTEROCOCCUS IRC 5 L
LA040911_00 Grand Lagoon; includes associated canals (Estuarine) R 22.1 N F F PCR ENTEROCOCCUS IRC 5 L
LA040912_00
Bayou LaCombe-From Interstate Highway 12 to US
Highway 190 (Scenic)
R 5.2 N F N N FWP DISSOLVED OXYGEN IRC 4a
LA040912_00
Bayou LaCombe-From Interstate Highway 12 to US
Highway 190 (Scenic)
R 5.2 N F N N FWP PH, LOW IRC 5RC L
LA040912_00
Bayou LaCombe-From Interstate Highway 12 to US
Highway 190 (Scenic)
R 5.2 N F N N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA040912_00
Bayou LaCombe-From Interstate Highway 12 to US
Highway 190 (Scenic)
R 5.2 N F N N ONR TURBIDITY IRC 5 L
LA040912_00
Bayou LaCombe-From Interstate Highway 12 to US
Highway 190 (Scenic)
R 5.2 N F N N PCR TEMPERATURE IRC 5 L
LA040913_00
Bayou LaCombe-From US Highway 190 to CDM
Ecoregion boundary (Scenic) (Estuarine)
R 4.0 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA040913_00
Bayou LaCombe-From US Highway 190 to CDM
Ecoregion boundary (Scenic) (Estuarine)
R 4.0 N F N F PCR ENTEROCOCCUS IRC 5 L
LA040914_00
Bayou Cane-From US Highway 190 to CDM Ecoregion
boundary (Scenic) (Estuarine)
R 1.0 N F N F FWP DISSOLVED OXYGEN IRC 4a
Page 22 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA040914_00
Bayou Cane-From US Highway 190 to CDM Ecoregion
boundary (Scenic) (Estuarine)
R 1.0 N F N F PCR ENTEROCOCCUS IRC 5 L
LA040915_00
Bayou Liberty-From LMRAP Ecoregion boundary to La.
Highway 433
R 8.6 N F N FWP DISSOLVED OXYGEN IRC 4a
LA040915_00
Bayou Liberty-From LMRAP Ecoregion boundary to La.
Highway 433
R 8.6 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA040915_00
Bayou Liberty-From LMRAP Ecoregion boundary to La.
Highway 433
R 8.6 N F N PCR FECAL COLIFORM IRC 5 L
LA040916_00
Bayou Paquet-From headwaters to Bayou Liberty
(Estuarine)
R 5.1 N F N FWP DISSOLVED OXYGEN IRC 4a
LA040916_00
Bayou Paquet-From headwaters to Bayou Liberty
(Estuarine)
R 5.1 N F N PCR ENTEROCOCCUS IRC 5 L
LA040917_00
Bayou Bonfouca-From La. Highway 433 to CDM
Ecoregion boundary (Estuarine)
R 2.7 N F N FWP DISSOLVED OXYGEN IRC 4a
LA040917_00
Bayou Bonfouca-From La. Highway 433 to CDM
Ecoregion boundary (Estuarine)
R 2.7 N F N PCR ENTEROCOCCUS IRC 5 L
LA041001_00
Lake Pontchartrain-West of US Highway 11 bridge
(Estuarine)
E 594.2 N F F PCR ENTEROCOCCUS IRC 5 L
LA041001_001
Fontainebleau State Park Beach-Located within
subsegment LA041001_00. This unit is added for
advisory tracking purposes only and is not a subsegment
as defined by LAC 33:IX.1123.A. et. seq. No other
assessment is made for this waterbody.
C 0.1 N PCR ENTEROCOCCUS IRC 5 L
LA041002_00
Lake Pontchartrain-East of US Highway 11 bridge
(Estuarine)
E 39.6 N F F F PCR ENTEROCOCCUS IRC 5 L
LA041101_00 Bonnet Carre Spillway W 7,077.3 N F N FWP CHLORIDE IRC 5 L
LA041101_00 Bonnet Carre Spillway W 7,077.3 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA041101_00 Bonnet Carre Spillway W 7,077.3 N F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA041101_00 Bonnet Carre Spillway W 7,077.3 N F N PCR TEMPERATURE IRC 5 L
LA041201_00
Bayou Labranche-From headwaters to Lake
Pontchartrain (Scenic) (Estuarine)
R 3.7 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA041201_00
Bayou Labranche-From headwaters to Lake
Pontchartrain (Scenic) (Estuarine)
R 3.7 N F N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA041201_00
Bayou Labranche-From headwaters to Lake
Pontchartrain (Scenic) (Estuarine)
R 3.7 N F N F FWP PHOSPHORUS, TOTAL IRC 4a
LA041201_00
Bayou Labranche-From headwaters to Lake
Pontchartrain (Scenic) (Estuarine)
R 3.7 N F N F PCR ENTEROCOCCUS IRC 5 L
Page 23 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA041202_00
Bayou Trepagnier-From Norco to Bayou Labranche
(Scenic) (Estuarine)
R 3.0 N F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA041202_00
Bayou Trepagnier-From Norco to Bayou Labranche
(Scenic) (Estuarine)
R 3.0 N F N F PCR ENTEROCOCCUS IRC 5 L
LA041203_00
Duncan Canal-From headwaters to Lake Pontchartrain;
also called Parish Line Canal (Estuarine)
R 3.3 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA041203_00
Duncan Canal-From headwaters to Lake Pontchartrain;
also called Parish Line Canal (Estuarine)
R 3.3 N F N PCR ENTEROCOCCUS IRC 5 L
LA041204_00
Bayou Traverse-From headwaters to LMRAP Ecoregion
boundary (Estuarine)
R 1.0 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA041204_00
Bayou Traverse-From headwaters to LMRAP Ecoregion
boundary (Estuarine)
R 1.0 N F N PCR ENTEROCOCCUS IRC 5 L
LA041301_00 Bayou St. John (Scenic) (Estuarine) R 3.9 N F F F PCR ENTEROCOCCUS IRC 5 L
LA041302_00
Lake Pontchartrain Drainage Canals in Jefferson and
Orleans Parishes (Estuarine)
R 62.2 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA041302_00
Lake Pontchartrain Drainage Canals in Jefferson and
Orleans Parishes (Estuarine)
R 62.2 N F N PCR ENTEROCOCCUS IRC 5 L
LA041401_00 New Orleans East Leveed Water Bodies (Estuarine) R 36.5 N F N FWP DISSOLVED OXYGEN IRC 4a
LA041401_00 New Orleans East Leveed Water Bodies (Estuarine) R 36.5 N F N PCR ENTEROCOCCUS IRC 5 L
LA041501_00
Inner Harbor Navigation Canal-From Mississippi River
Lock to Lake Pontchartrain (Estuarine)
R 5.3 F F F
LA041601_00
Intracoastal Waterway-From Inner Harbor Navigation
Canal to Chef Menteur Pass (Estuarine)
R 14.4 F F N F FWP PH, LOW IRC 5 L
LA041701_00 The Rigolets (Estuarine) E 5.0 N F F PCR ENTEROCOCCUS IRC 5 L
LA041702_00
Bayou Sauvage-From New Orleans hurricane protection
levee to Chef Menteur Pass; includes Chef Menteur Pass
(Estuarine)
R 10.4 N F F PCR ENTEROCOCCUS IRC 5 L
LA041703_00
Intracoastal Waterway-From Chef Menteur Pass to Lake
Borgne (Estuarine)
R 11.0 N F F F PCR ENTEROCOCCUS IRC 5 L
LA041704_00 Lake St. Catherine E 10.0 F F F
LA041801_00
Bayou Bienvenue-From headwaters to hurricane gate at
MRGO (Estuarine)
R 2.9 F F F
LA041802_00 Bayou Chaperon (Scenic) (Estuarine) R 1.9 N F N F FWP DISSOLVED OXYGEN IRC 5 L
LA041802_00 Bayou Chaperon (Scenic) (Estuarine) R 1.9 N F N F PCR ENTEROCOCCUS IRC 5 L
LA041803_00
Bashman Bayou-From headwaters to Bayou Dupre
(Scenic) (Estuarine)
R 1.6 N F N F FWP DISSOLVED OXYGEN IRC 5 L
Page 24 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA041803_00
Bashman Bayou-From headwaters to Bayou Dupre
(Scenic) (Estuarine)
R 1.6 N F N F PCR ENTEROCOCCUS IRC 5 L
LA041804_00
Bayou Dupre-From Lake Borgne Canal to Terre Beau
Bayou (Scenic) (Estuarine)
R 2.8 N F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA041804_00
Bayou Dupre-From Lake Borgne Canal to Terre Beau
Bayou (Scenic) (Estuarine)
R 2.8 N F N F PCR ENTEROCOCCUS IRC 5 L
LA041805_00
Lake Borgne Canal-From Mississippi River siphon at
Violet to Bayou Dupre; also called Violet Canal (Scenic)
(Estuarine)
R 2.6 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA041805_00
Lake Borgne Canal-From Mississippi River siphon at
Violet to Bayou Dupre; also called Violet Canal (Scenic)
(Estuarine)
R 2.6 N F N F PCR ENTEROCOCCUS IRC 5 L
LA041806_00
Pirogue Bayou-From Bayou Dupre to New Canal (Scenic)
(Estuarine)
R 2.4 N F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA041806_00
Pirogue Bayou-From Bayou Dupre to New Canal (Scenic)
(Estuarine)
R 2.4 N F N F PCR ENTEROCOCCUS IRC 5 L
LA041807_00
Terre Beau Bayou-From Bayou Dupre to New Canal
(Scenic) (Estuarine)
R 2.1 N F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA041807_00
Terre Beau Bayou-From Bayou Dupre to New Canal
(Scenic) (Estuarine)
R 2.1 N F N F PCR ENTEROCOCCUS IRC 5 L
LA041808_00 New Canal (Estuarine) R 3.6 N F N FWP DISSOLVED OXYGEN IRC 5RC L
LA041808_00 New Canal (Estuarine) R 3.6 N F N PCR ENTEROCOCCUS IRC 5 L
LA041809_00
Poydras-Verret Marsh Wetland-Forested and marsh
wetland located 1.5 miles north of St. Bernard, south of
Violet Canal, and northeast of Forty Arpent Canal
W 2,748.0 X X
LA041901_00
Mississippi River Gulf Outlet (MRGO)-From ICWW to
Breton Sound at MRGO mile 30
R 30.1 F F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA042001_00 Lake Borgne E 271.9 N F N N FWP DISSOLVED OXYGEN IRC 5RC L
LA042001_00 Lake Borgne E 271.9 N F N N OYS FECAL COLIFORM IRC 5 M
LA042001_00 Lake Borgne E 271.9 N F N N PCR ENTEROCOCCUS IRC 5 L
LA042002_00
Bayou Bienvenue-From Bayou Villere to Lake Borgne
(Scenic) (Estuarine)
R 2.9 F F N F N FWP PH, LOW IRC 5 L
LA042002_00
Bayou Bienvenue-From Bayou Villere to Lake Borgne
(Scenic) (Estuarine)
R 2.9 F F N F N OYS FECAL COLIFORM IRC 5 M
LA042003_00 Bayou La Loutre-From MRGO to Eloi Bay (Estuarine) R 22.4 N F F F PCR ENTEROCOCCUS IRC 5 L
LA042004_00
Bayou Bienvenue-From MRGO to Bayou Villere
(Estuarine)
R 2.7 F F F N OYS FECAL COLIFORM IRC 5 M
LA042101_00 Bayou Terre Aux Boeufs (Estuarine) R 26.8 N F F F PCR ENTEROCOCCUS IRC 5 L
Page 25 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA042102_00 River Aux Chenes; also called Oak River (Estuarine) R 21.6 F F F N OYS FECAL COLIFORM IRC 5 M
LA042103_00
Bayou Gentilly-From Bayou Terre Aux Boeufs to Petit
Lake (Estuarine)
R 2.5 N F F N OYS FECAL COLIFORM IRC 5 M
LA042103_00
Bayou Gentilly-From Bayou Terre Aux Boeufs to Petit
Lake (Estuarine)
R 2.5 N F F N PCR ENTEROCOCCUS IRC 5 L
LA042104_00 Petit Lake E 1.6 F F F N OYS FECAL COLIFORM IRC 5 M
LA042105_00 Lake Lery E 8.4 F F F F
LA042201_00 Chandeleur Sound E 872.4 N F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA042201_00 Chandeleur Sound E 872.4 N F N F PCR ENTEROCOCCUS IRC 5 L
LA042202_00 California Bay and Breton Sound E 329.6 N F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA042202_00 California Bay and Breton Sound E 329.6 N F N F PCR ENTEROCOCCUS IRC 5 L
LA042203_00 Bay Boudreau E 27.9 N F F F PCR ENTEROCOCCUS IRC 5 L
LA042204_00 Drum Bay E 14.1 N F N F FWP DISSOLVED OXYGEN IRC 5 L
LA042204_00 Drum Bay E 14.1 N F N F PCR ENTEROCOCCUS IRC 5 L
LA042205_00 Morgan Harbor E 14.3 N F F F PCR ENTEROCOCCUS IRC 5 L
LA042206_00 Eloi Bay E 69.3 N F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA042206_00 Eloi Bay E 69.3 N F N F PCR ENTEROCOCCUS IRC 5 L
LA042207_00 Lake Fortuna E 16.0 N F N N FWP DISSOLVED OXYGEN IRC 5RC L
LA042207_00 Lake Fortuna E 16.0 N F N N OYS FECAL COLIFORM IRC 5 M
LA042207_00 Lake Fortuna E 16.0 N F N N PCR ENTEROCOCCUS IRC 5 L
LA042208_00
Bay Gardene, Black Bay, Lost Bayou, American Bay, and
Bay Crabe
E 43.2 N F F N OYS FECAL COLIFORM IRC 5 M
LA042208_00
Bay Gardene, Black Bay, Lost Bayou, American Bay, and
Bay Crabe
E 43.2 N F F N PCR ENTEROCOCCUS IRC 5 L
LA042209_00
Lake Pontchartrain Basin Coastal Bays and Gulf Waters
to the State 3 mile limit
E 255.2 F F N N FWP DISSOLVED OXYGEN IRC 5RC L
LA042209_00
Lake Pontchartrain Basin Coastal Bays and Gulf Waters
to the State 3 mile limit
E 255.2 F F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA042209_00
Lake Pontchartrain Basin Coastal Bays and Gulf Waters
to the State 3 mile limit
E 255.2 F F N N OYS FECAL COLIFORM IRC 5 M
LA050101_00
Bayou Des Cannes-From headwaters to Mermentau
River
R 67.6 F F N F FWP CARBOFURAN IRC 4a
LA050101_00
Bayou Des Cannes-From headwaters to Mermentau
River
R 67.6 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA050101_00
Bayou Des Cannes-From headwaters to Mermentau
River
R 67.6 F F N F FWP FIPRONIL IRC 4a
LA050101_00
Bayou Des Cannes-From headwaters to Mermentau
River
R 67.6 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
Page 26 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA050101_00
Bayou Des Cannes-From headwaters to Mermentau
River
R 67.6 F F N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA050101_00
Bayou Des Cannes-From headwaters to Mermentau
River
R 67.6 F F N F FWP PHOSPHORUS, TOTAL IRC 4a
LA050101_00
Bayou Des Cannes-From headwaters to Mermentau
River
R 67.6 F F N F FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA050101_00
Bayou Des Cannes-From headwaters to Mermentau
River
R 67.6 F F N F FWP TURBIDITY IRC 4a
LA050103_00 Bayou Mallet-From headwaters to Bayou Des Cannes R 48.2 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA050103_00 Bayou Mallet-From headwaters to Bayou Des Cannes R 48.2 N F N F FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA050103_00 Bayou Mallet-From headwaters to Bayou Des Cannes R 48.2 N F N F PCR FECAL COLIFORM IRC 5 L
LA050201_00
Bayou Plaquemine Brule-From headwaters to Bayou Des
Cannes
R 57.0 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA050201_00
Bayou Plaquemine Brule-From headwaters to Bayou Des
Cannes
R 57.0 F F N F FWP FIPRONIL IRC 4a
LA050201_00
Bayou Plaquemine Brule-From headwaters to Bayou Des
Cannes
R 57.0 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA050201_00
Bayou Plaquemine Brule-From headwaters to Bayou Des
Cannes
R 57.0 F F N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA050201_00
Bayou Plaquemine Brule-From headwaters to Bayou Des
Cannes
R 57.0 F F N F FWP PHOSPHORUS, TOTAL IRC 4a
LA050201_00
Bayou Plaquemine Brule-From headwaters to Bayou Des
Cannes
R 57.0 F F N F FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA050201_00
Bayou Plaquemine Brule-From headwaters to Bayou Des
Cannes
R 57.0 F F N F FWP TURBIDITY IRC 4a
LA050301_00
Bayou Nezpique-From headwaters to Mermentau River;
includes intermittent portion of Beaver Creek
R 99.0 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA050301_00
Bayou Nezpique-From headwaters to Mermentau River;
includes intermittent portion of Beaver Creek
R 99.0 N F N F FWP FIPRONIL IRC 4a
LA050301_00
Bayou Nezpique-From headwaters to Mermentau River;
includes intermittent portion of Beaver Creek
R 99.0 N F N F FWP LEAD IRC 4a
Page 27 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA050301_00
Bayou Nezpique-From headwaters to Mermentau River;
includes intermittent portion of Beaver Creek
R 99.0 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA050301_00
Bayou Nezpique-From headwaters to Mermentau River;
includes intermittent portion of Beaver Creek
R 99.0 N F N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA050301_00
Bayou Nezpique-From headwaters to Mermentau River;
includes intermittent portion of Beaver Creek
R 99.0 N F N F FWP PHOSPHORUS, TOTAL IRC 4a
LA050301_00
Bayou Nezpique-From headwaters to Mermentau River;
includes intermittent portion of Beaver Creek
R 99.0 N F N F FWP TURBIDITY IRC 4a
LA050301_00
Bayou Nezpique-From headwaters to Mermentau River;
includes intermittent portion of Beaver Creek
R 99.0 N F N F PCR FECAL COLIFORM IRC 4a
LA050301_00556751
Crooked Creek Reservoir-Located within subsegment
LA050301_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this lake.
L 370.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA050303_00 Castor Creek-From headwaters to Bayou Nezpique R 26.5 N F N FWP DISSOLVED OXYGEN IRC 4a
LA050303_00 Castor Creek-From headwaters to Bayou Nezpique R 26.5 N F N FWP LEAD IRC 4a
LA050303_00 Castor Creek-From headwaters to Bayou Nezpique R 26.5 N F N PCR FECAL COLIFORM IRC 4a
LA050304_00 Bayou Blue-From headwaters to Bayou Nezpique R 34.3 N F N FWP DISSOLVED OXYGEN IRC 4a
LA050304_00 Bayou Blue-From headwaters to Bayou Nezpique R 34.3 N F N FWP LEAD IRC 4a
LA050304_00 Bayou Blue-From headwaters to Bayou Nezpique R 34.3 N F N PCR FECAL COLIFORM IRC 5 L
LA050401_00 Mermentau River-From headwaters to Lake Arthur R 15.7 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA050401_00 Mermentau River-From headwaters to Lake Arthur R 15.7 N F N F FWP FIPRONIL IRC 4a
LA050401_00 Mermentau River-From headwaters to Lake Arthur R 15.7 N F N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA050401_00 Mermentau River-From headwaters to Lake Arthur R 15.7 N F N F FWP PHOSPHORUS, TOTAL IRC 4a
LA050401_00 Mermentau River-From headwaters to Lake Arthur R 15.7 N F N F PCR FECAL COLIFORM IRC 5 L
LA050402_00 Lake Arthur and Lower Mermentau River to ICWW E 9.3 F F N FWP DISSOLVED OXYGEN IRC 4a
LA050501_00
Bayou Queue de Tortue-From headwaters to
Mermentau River
R 57.2 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA050501_00
Bayou Queue de Tortue-From headwaters to
Mermentau River
R 57.2 F F N F FWP FIPRONIL IRC 4a
LA050501_00
Bayou Queue de Tortue-From headwaters to
Mermentau River
R 57.2 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
Page 28 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA050501_00
Bayou Queue de Tortue-From headwaters to
Mermentau River
R 57.2 F F N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA050501_00
Bayou Queue de Tortue-From headwaters to
Mermentau River
R 57.2 F F N F FWP PHOSPHORUS, TOTAL IRC 4a
LA050501_00
Bayou Queue de Tortue-From headwaters to
Mermentau River
R 57.2 F F N F FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA050501_00
Bayou Queue de Tortue-From headwaters to
Mermentau River
R 57.2 F F N F FWP TURBIDITY IRC 4a
LA050601_00 Lacassine Bayou-From headwaters to ICWW R 34.8 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA050601_00 Lacassine Bayou-From headwaters to ICWW R 34.8 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA050601_00 Lacassine Bayou-From headwaters to ICWW R 34.8 N F N F PCR FECAL COLIFORM IRC 5 L
LA050602_00
Intracoastal Waterway-From Calcasieu River Basin
Boundary to Mermentau River
R 17.0 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA050602_00
Intracoastal Waterway-From Calcasieu River Basin
Boundary to Mermentau River
R 17.0 N F N F FWP TURBIDITY IRC 4a
LA050602_00
Intracoastal Waterway-From Calcasieu River Basin
Boundary to Mermentau River
R 17.0 N F N F PCR FECAL COLIFORM IRC 5 L
LA050603_00
Bayou Chene-From headwaters to Lacassine Bayou;
includes Bayou Grand Marais
R 21.1 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA050603_00
Bayou Chene-From headwaters to Lacassine Bayou;
includes Bayou Grand Marais
R 21.1 N F N F FWP FIPRONIL IRC 4a
LA050603_00
Bayou Chene-From headwaters to Lacassine Bayou;
includes Bayou Grand Marais
R 21.1 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA050603_00
Bayou Chene-From headwaters to Lacassine Bayou;
includes Bayou Grand Marais
R 21.1 N F N F PCR FECAL COLIFORM IRC 5 L
LA050701_00 Grand Lake L 47,869.0 F F N F FWP CARBOFURAN IRC 4a
LA050701_00 Grand Lake L 47,869.0 F F N F FWP TURBIDITY IRC 4a
LA050702_00
Intracoastal Waterway-From Mermentau River to
Vermilion Locks
R 39.7 F F N F FWP CARBOFURAN IRC 4a
LA050702_00
Intracoastal Waterway-From Mermentau River to
Vermilion Locks
R 39.7 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA050702_00
Intracoastal Waterway-From Mermentau River to
Vermilion Locks
R 39.7 F F N F FWP TURBIDITY IRC 4a
LA050702_001
Seventh Ward Canal-Located within subsegment
LA050702_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this waterbody.
R 13.5 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
Page 29 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA050703_00 White Lake L 56,487.1 F F N F FWP CHLORIDE IRC 4a
LA050703_00 White Lake L 56,487.1 F F N F FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA050703_00 White Lake L 56,487.1 F F N F FWP TURBIDITY IRC 4a
LA050801_00
Mermentau River-From Catfish Point Control Structure
to Gulf of Mexico (Estuarine)
R 24.9 N F F N OYS FECAL COLIFORM IRC 5 M
LA050801_00
Mermentau River-From Catfish Point Control Structure
to Gulf of Mexico (Estuarine)
R 24.9 N F F N PCR ENTEROCOCCUS IRC 5 L
LA050802_00 Big Constance Lake (Estuarine) E 0.8 N F N FWP DISSOLVED OXYGEN IRC 4a
LA050802_00 Big Constance Lake (Estuarine) E 0.8 N F N FWP TURBIDITY IRC 5RC L
LA050802_00 Big Constance Lake (Estuarine) E 0.8 N F N PCR ENTEROCOCCUS IRC 5 L
LA050901_00
Mermentau River Basin Coastal Bays and Gulf Waters to
the State 3 mile limit
E 207.6 N F N F FWP CARBOFURAN IRC 4a
LA050901_00
Mermentau River Basin Coastal Bays and Gulf Waters to
the State 3 mile limit
E 207.6 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA050901_00
Mermentau River Basin Coastal Bays and Gulf Waters to
the State 3 mile limit
E 207.6 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA050901_00
Mermentau River Basin Coastal Bays and Gulf Waters to
the State 3 mile limit
E 207.6 N F N F PCR ENTEROCOCCUS IRC 5 L
LA050901_001
Rutherford Beach-Located within subsegment
LA050901_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et. seq. No other assessment is made
for this waterbody.
C 1.5 N PCR ENTEROCOCCUS IRC 5 L
LA060101_00 Spring Creek-From headwaters to Cocodrie Lake (Scenic) R 36.2 N F F N ONR TURBIDITY IRC 4a
LA060101_00 Spring Creek-From headwaters to Cocodrie Lake (Scenic) R 36.2 N F F N PCR FECAL COLIFORM IRC 5 L
LA060102_00 Cocodrie Lake L 7,310.0 F F N FWP DISSOLVED OXYGEN IRC 4a
LA060102_00 Cocodrie Lake L 7,310.0 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA060102_00 Cocodrie Lake L 7,310.0 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4a
LA060201_00
Bayou Cocodrie-From US Highway 167 to Bayou Boeuf-
Cocodrie Diversion Canal (Scenic)
R 27.2 N F F N ONR TURBIDITY IRC 4a
LA060201_00
Bayou Cocodrie-From US Highway 167 to Bayou Boeuf-
Cocodrie Diversion Canal (Scenic)
R 27.2 N F F N PCR FECAL COLIFORM IRC 5 L
LA060202_00
Bayou Cocodrie-From Cocodrie Diversion Canal to
Bayou Boeuf
R 17.4 N F N FWP DISSOLVED OXYGEN IRC 4a
LA060202_00
Bayou Cocodrie-From Cocodrie Diversion Canal to
Bayou Boeuf
R 17.4 N F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
Page 30 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA060202_00
Bayou Cocodrie-From Cocodrie Diversion Canal to
Bayou Boeuf
R 17.4 N F N FWP PHOSPHORUS, TOTAL IRC 4a
LA060202_00
Bayou Cocodrie-From Cocodrie Diversion Canal to
Bayou Boeuf
R 17.4 N F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA060202_00
Bayou Cocodrie-From Cocodrie Diversion Canal to
Bayou Boeuf
R 17.4 N F N FWP TURBIDITY IRC 4a
LA060202_00
Bayou Cocodrie-From Cocodrie Diversion Canal to
Bayou Boeuf
R 17.4 N F N PCR FECAL COLIFORM IRC 5 L
LA060203_00 Chicot Lake L 1,157.2 F F N FWP DISSOLVED OXYGEN IRC 4a
LA060203_00 Chicot Lake L 1,157.2 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA060203_00 Chicot Lake L 1,157.2 F F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA060203_00 Chicot Lake L 1,157.2 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA060203_00 Chicot Lake L 1,157.2 F F N FWP PHOSPHORUS, TOTAL IRC 4a
LA060204_00
Bayou Courtableau-From headwaters to West
Atchafalaya Borrow Pit Canal
R 21.3 N F N FWP TURBIDITY IRC 4a
LA060204_00
Bayou Courtableau-From headwaters to West
Atchafalaya Borrow Pit Canal
R 21.3 N F N PCR ENTEROCOCCUS IRC 5 L
LA060206_00 Indian Creek and Indian Creek Reservoir L 1,740.8 F F F
LA060207_00
Bayou des Glaises Diversion Channel/West Atchafalaya
Borrow Pit Canal-From Bayou des Glaises to Bayou
Courtableau
R 37.3 N F N FWP CARBOFURAN IRC 4a
LA060207_00
Bayou des Glaises Diversion Channel/West Atchafalaya
Borrow Pit Canal-From Bayou des Glaises to Bayou
Courtableau
R 37.3 N F N FWP DISSOLVED OXYGEN IRC 4a
LA060207_00
Bayou des Glaises Diversion Channel/West Atchafalaya
Borrow Pit Canal-From Bayou des Glaises to Bayou
Courtableau
R 37.3 N F N FWP TURBIDITY IRC 4a
LA060207_00
Bayou des Glaises Diversion Channel/West Atchafalaya
Borrow Pit Canal-From Bayou des Glaises to Bayou
Courtableau
R 37.3 N F N PCR ENTEROCOCCUS IRC 5 L
LA060208_00 Bayou Boeuf-From headwaters to Bayou Courtableau R 109.1 N F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA060208_00 Bayou Boeuf-From headwaters to Bayou Courtableau R 109.1 N F N FWP TURBIDITY IRC 4a
LA060208_00 Bayou Boeuf-From headwaters to Bayou Courtableau R 109.1 N F N PCR ENTEROCOCCUS IRC 5 L
Page 31 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA060209_00
Irish Ditch and Big Bayou-From unnamed ditch to Irish
Ditch No. 1 to Big Bayou to Irish Ditch No. 2 to Bayou
Rapides
R 9.9 N N FWP DISSOLVED OXYGEN IRC 4a
LA060209_00
Irish Ditch and Big Bayou-From unnamed ditch to Irish
Ditch No. 1 to Big Bayou to Irish Ditch No. 2 to Bayou
Rapides
R 9.9 N N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA060209_00
Irish Ditch and Big Bayou-From unnamed ditch to Irish
Ditch No. 1 to Big Bayou to Irish Ditch No. 2 to Bayou
Rapides
R 9.9 N N SCR FECAL COLIFORM IRC 5 L
LA060210_00 Bayou Carron-From headwaters to Little Bayou Teche R 19.0 N N N FWP DISSOLVED OXYGEN IRC 4a
LA060210_00 Bayou Carron-From headwaters to Little Bayou Teche R 19.0 N N N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA060210_00 Bayou Carron-From headwaters to Little Bayou Teche R 19.0 N N N FWP PHOSPHORUS, TOTAL IRC 4a
LA060210_00 Bayou Carron-From headwaters to Little Bayou Teche R 19.0 N N N FWP TURBIDITY IRC 4a
LA060210_00 Bayou Carron-From headwaters to Little Bayou Teche R 19.0 N N N PCR ENTEROCOCCUS IRC 5 L
LA060210_00 Bayou Carron-From headwaters to Little Bayou Teche R 19.0 N N N SCR FECAL COLIFORM IRC 5 L
LA060211_00
West Atchafalaya Borrow Pit Canal-From Bayou
Courtableau to Henderson; includes Bayou Portage
R 43.5 N F N FWP DISSOLVED OXYGEN IRC 4a
LA060211_00
West Atchafalaya Borrow Pit Canal-From Bayou
Courtableau to Henderson; includes Bayou Portage
R 43.5 N F N FWP TURBIDITY IRC 4a
LA060211_00
West Atchafalaya Borrow Pit Canal-From Bayou
Courtableau to Henderson; includes Bayou Portage
R 43.5 N F N PCR FECAL COLIFORM IRC 5 L
LA060212_00
Chatlin Lake Canal and Bayou DuLac-From Alexandria to
Bayou des Glaises Diversion Canal; includes a portion of
Bayou des Glaises
R 51.3 N F N FWP DISSOLVED OXYGEN IRC 4a
LA060212_00
Chatlin Lake Canal and Bayou DuLac-From Alexandria to
Bayou des Glaises Diversion Canal; includes a portion of
Bayou des Glaises
R 51.3 N F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA060212_00
Chatlin Lake Canal and Bayou DuLac-From Alexandria to
Bayou des Glaises Diversion Canal; includes a portion of
Bayou des Glaises
R 51.3 N F N FWP PHOSPHORUS, TOTAL IRC 4a
LA060212_00
Chatlin Lake Canal and Bayou DuLac-From Alexandria to
Bayou des Glaises Diversion Canal; includes a portion of
Bayou des Glaises
R 51.3 N F N FWP SULFATE IRC 5 L
Page 32 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA060212_00
Chatlin Lake Canal and Bayou DuLac-From Alexandria to
Bayou des Glaises Diversion Canal; includes a portion of
Bayou des Glaises
R 51.3 N F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA060212_00
Chatlin Lake Canal and Bayou DuLac-From Alexandria to
Bayou des Glaises Diversion Canal; includes a portion of
Bayou des Glaises
R 51.3 N F N FWP TURBIDITY IRC 4a
LA060212_00
Chatlin Lake Canal and Bayou DuLac-From Alexandria to
Bayou des Glaises Diversion Canal; includes a portion of
Bayou des Glaises
R 51.3 N F N PCR FECAL COLIFORM IRC 4a
LA060301_00
Bayou Teche-From headwaters at Bayou Courtableau to
Keystone Locks and Dam
R 52.6 N F N FWP CARBOFURAN IRC 4a
LA060301_00
Bayou Teche-From headwaters at Bayou Courtableau to
Keystone Locks and Dam
R 52.6 N F N FWP DISSOLVED OXYGEN IRC 4a
LA060301_00
Bayou Teche-From headwaters at Bayou Courtableau to
Keystone Locks and Dam
R 52.6 N F N PCR FECAL COLIFORM IRC 4a
LA060401_00
Bayou Teche-From Keystone Locks and Dam to
Charenton Canal
R 39.1 N F N FWP CARBOFURAN IRC 4a
LA060401_00
Bayou Teche-From Keystone Locks and Dam to
Charenton Canal
R 39.1 N F N FWP DISSOLVED OXYGEN IRC 4a
LA060401_00
Bayou Teche-From Keystone Locks and Dam to
Charenton Canal
R 39.1 N F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA060401_00
Bayou Teche-From Keystone Locks and Dam to
Charenton Canal
R 39.1 N F N FWP PHOSPHORUS, TOTAL IRC 4a
LA060401_00
Bayou Teche-From Keystone Locks and Dam to
Charenton Canal
R 39.1 N F N PCR FECAL COLIFORM IRC 4a
LA060501_00 Bayou Teche-From Charenton Canal to Wax Lake Outlet R 22.6 N F N N DWS COLOR IRC 5 L
LA060501_00 Bayou Teche-From Charenton Canal to Wax Lake Outlet R 22.6 N F N N FWP DISSOLVED OXYGEN IRC 4a
LA060501_00 Bayou Teche-From Charenton Canal to Wax Lake Outlet R 22.6 N F N N PCR FECAL COLIFORM IRC 5 L
LA060601_00
Charenton Canal-From Charenton Floodgate to ICWW;
includes Bayou Teche from Charenton to Baldwin
R 11.8 N F N N DWS COLOR IRC 5 L
LA060601_00
Charenton Canal-From Charenton Floodgate to ICWW;
includes Bayou Teche from Charenton to Baldwin
R 11.8 N F N N FWP DISSOLVED OXYGEN IRC 4a
Page 33 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA060601_00
Charenton Canal-From Charenton Floodgate to ICWW;
includes Bayou Teche from Charenton to Baldwin
R 11.8 N F N N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA060601_00
Charenton Canal-From Charenton Floodgate to ICWW;
includes Bayou Teche from Charenton to Baldwin
R 11.8 N F N N FWP PHOSPHORUS, TOTAL IRC 4a
LA060601_00
Charenton Canal-From Charenton Floodgate to ICWW;
includes Bayou Teche from Charenton to Baldwin
R 11.8 N F N N FWP TURBIDITY IRC 4a
LA060601_00
Charenton Canal-From Charenton Floodgate to ICWW;
includes Bayou Teche from Charenton to Baldwin
R 11.8 N F N N PCR FECAL COLIFORM IRC 5 L
LA060701_00 Tete Bayou-From headwaters to Lake Fausse Point R 10.3 N N N FWP AMMONIA, TOTAL IRC 5 L
LA060701_00 Tete Bayou-From headwaters to Lake Fausse Point R 10.3 N N N FWP CARBOFURAN IRC 4a
LA060701_00 Tete Bayou-From headwaters to Lake Fausse Point R 10.3 N N N FWP DISSOLVED OXYGEN IRC 4a
LA060701_00 Tete Bayou-From headwaters to Lake Fausse Point R 10.3 N N N FWP TURBIDITY IRC 4a
LA060701_00 Tete Bayou-From headwaters to Lake Fausse Point R 10.3 N N N PCR FECAL COLIFORM IRC 4a
LA060701_00 Tete Bayou-From headwaters to Lake Fausse Point R 10.3 N N N SCR FECAL COLIFORM IRC 4a
LA060702_00 Lake Fausse Point and Dauterive Lake L 16,495.0 N F N FWP DISSOLVED OXYGEN IRC 4a
LA060702_00 Lake Fausse Point and Dauterive Lake L 16,495.0 N F N FWP TURBIDITY IRC 4a
LA060702_00 Lake Fausse Point and Dauterive Lake L 16,495.0 N F N PCR FECAL COLIFORM IRC 5 L
LA060703_00 Bayou Du Portage-From headwaters to Dauterive Lake R 5.7 N F N FWP DISSOLVED OXYGEN IRC 4a
LA060703_00 Bayou Du Portage-From headwaters to Dauterive Lake R 5.7 N F N FWP TURBIDITY IRC 4a
LA060703_00 Bayou Du Portage-From headwaters to Dauterive Lake R 5.7 N F N PCR FECAL COLIFORM IRC 4a
LA060801_00
Vermilion River-From headwaters to La. Highway 3073
bridge
R 27.0 N N N F FWP CARBOFURAN IRC 4a
LA060801_00
Vermilion River-From headwaters to La. Highway 3073
bridge
R 27.0 N N N F FWP DISSOLVED OXYGEN IRC 4a
LA060801_00
Vermilion River-From headwaters to La. Highway 3073
bridge
R 27.0 N N N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA060801_00
Vermilion River-From headwaters to La. Highway 3073
bridge
R 27.0 N N N F PCR FECAL COLIFORM IRC 4a
LA060801_00
Vermilion River-From headwaters to La. Highway 3073
bridge
R 27.0 N N N F SCR FECAL COLIFORM IRC 4a
LA060802_00 Vermilion River-From La. Highway 3073 bridge to ICWW R 38.8 N N N F FWP CARBOFURAN IRC 4a
Page 34 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA060802_00 Vermilion River-From La. Highway 3073 bridge to ICWW R 38.8 N N N F FWP DISSOLVED OXYGEN IRC 4a
LA060802_00 Vermilion River-From La. Highway 3073 bridge to ICWW R 38.8 N N N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA060802_00 Vermilion River-From La. Highway 3073 bridge to ICWW R 38.8 N N N F PCR ENTEROCOCCUS IRC 5 L
LA060802_00 Vermilion River-From La. Highway 3073 bridge to ICWW R 38.8 N N N F SCR FECAL COLIFORM IRC 4a
LA060802_001
Seventh Ward Canal-Located within subsegment
060802. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this waterbody.
R 0.6 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA060803_00
Vermilion River Cutoff-From ICWW to Vermilion Bay
(Estuarine)
R 3.2 N F N FWP CARBOFURAN IRC 4a
LA060803_00
Vermilion River Cutoff-From ICWW to Vermilion Bay
(Estuarine)
R 3.2 N F N FWP DISSOLVED OXYGEN IRC 4a
LA060803_00
Vermilion River Cutoff-From ICWW to Vermilion Bay
(Estuarine)
R 3.2 N F N FWP TURBIDITY IRC 4a
LA060803_00
Vermilion River Cutoff-From ICWW to Vermilion Bay
(Estuarine)
R 3.2 N F N PCR ENTEROCOCCUS IRC 5 L
LA060804_00
Intracoastal Waterway-From Vermilion Lock to 1/2 mile
west of Gum Island Canal (Estuarine)
R 6.1 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA060804_00
Intracoastal Waterway-From Vermilion Lock to 1/2 mile
west of Gum Island Canal (Estuarine)
R 6.1 N F N FWP TURBIDITY IRC 4a
LA060804_00
Intracoastal Waterway-From Vermilion Lock to 1/2 mile
west of Gum Island Canal (Estuarine)
R 6.1 N F N PCR ENTEROCOCCUS IRC 5 L
LA060805_00
Breaux Bridge Swamp-Forested wetland in St. Martin
Parish, 1/2 mile southwest of Breaux Bridge, southeast
of La. Highway 94, west of Bayou Teche, east of
Vermilion River, and north of Evangeline and Ruth
Canals; also called Cyprière Perdue Swamp
W 1,376.0 X
LA060806_00
Cypress Island Coulee Wetland-Forested wetland
located in St. Martin Parish, 2 miles west of St.
Martinville, 1/2 mile north of La. Highway 96, west of
Bayou Teche, and east of Vermilion River
W 430.0 X F
Page 35 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA060807_00
Cote Gelee Wetland-Forested wetland located in
Lafayette Parish, 2 miles east of Broussard, 2 miles
northeast of US Highway 90, and west of Bayou Tortue
W 353.0 X F
LA060901_00
Bayou Petite Anse-From headwaters to Bayou Carlin
(Estuarine)
R 11.7 N F N FWP CARBOFURAN IRC 4a
LA060901_00
Bayou Petite Anse-From headwaters to Bayou Carlin
(Estuarine)
R 11.7 N F N FWP DISSOLVED OXYGEN IRC 4a
LA060901_00
Bayou Petite Anse-From headwaters to Bayou Carlin
(Estuarine)
R 11.7 N F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA060901_00
Bayou Petite Anse-From headwaters to Bayou Carlin
(Estuarine)
R 11.7 N F N FWP PHOSPHORUS, TOTAL IRC 4a
LA060901_00
Bayou Petite Anse-From headwaters to Bayou Carlin
(Estuarine)
R 11.7 N F N PCR ENTEROCOCCUS IRC 5 L
LA060902_00
Bayou Carlin-From Lake Peigneur to Bayou Tigre; also
called Delcambre Canal (Estuarine)
R 3.6 N F N FWP AMMONIA, TOTAL IRC 5 L
LA060902_00
Bayou Carlin-From Lake Peigneur to Bayou Tigre; also
called Delcambre Canal (Estuarine)
R 3.6 N F N FWP CARBOFURAN IRC 4a
LA060902_00
Bayou Carlin-From Lake Peigneur to Bayou Tigre; also
called Delcambre Canal (Estuarine)
R 3.6 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA060902_00
Bayou Carlin-From Lake Peigneur to Bayou Tigre; also
called Delcambre Canal (Estuarine)
R 3.6 N F N PCR ENTEROCOCCUS IRC 5 L
LA060903_00
Bayou Tigre-From headwaters to Bayou Petite Anse
(Estuarine)
R 6.8 N F N FWP CARBOFURAN IRC 4a
LA060903_00
Bayou Tigre-From headwaters to Bayou Petite Anse
(Estuarine)
R 6.8 N F N FWP DISSOLVED OXYGEN IRC 4a
LA060903_00
Bayou Tigre-From headwaters to Bayou Petite Anse
(Estuarine)
R 6.8 N F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA060903_00
Bayou Tigre-From headwaters to Bayou Petite Anse
(Estuarine)
R 6.8 N F N FWP PHOSPHORUS, TOTAL IRC 4a
LA060903_00
Bayou Tigre-From headwaters to Bayou Petite Anse
(Estuarine)
R 6.8 N F N FWP TURBIDITY IRC 4a
LA060903_00
Bayou Tigre-From headwaters to Bayou Petite Anse
(Estuarine)
R 6.8 N F N PCR ENTEROCOCCUS IRC 5 L
LA060904_00
New Iberia Southern Drainage Canal-From headwaters
to ICWW (Estuarine)
R 7.7 N F N LAL CARBOFURAN IRC 4a
LA060904_00
New Iberia Southern Drainage Canal-From headwaters
to ICWW (Estuarine)
R 7.7 N F N PCR ENTEROCOCCUS IRC 5 L
Page 36 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA060906_00
Intracoastal Waterway-From New Iberia Southern
Drainage Canal to Bayou Sale (Estuarine)
R 27.8 N F N FWP CARBOFURAN IRC 4a
LA060906_00
Intracoastal Waterway-From New Iberia Southern
Drainage Canal to Bayou Sale (Estuarine)
R 27.8 N F N FWP TURBIDITY IRC 4a
LA060906_00
Intracoastal Waterway-From New Iberia Southern
Drainage Canal to Bayou Sale (Estuarine)
R 27.8 N F N PCR ENTEROCOCCUS IRC 5 L
LA060907_00 Franklin Canal R 4.7 F F N FWP CARBOFURAN IRC 4a
LA060907_00 Franklin Canal R 4.7 F F N FWP DISSOLVED OXYGEN IRC 4a
LA060907_00 Franklin Canal R 4.7 F F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA060907_00 Franklin Canal R 4.7 F F N FWP PHOSPHORUS, TOTAL IRC 4a
LA060907_00 Franklin Canal R 4.7 F F N FWP TURBIDITY IRC 4a
LA060908_00 Spanish Lake L 1,216.5 F F N FWP TURBIDITY IRC 5 L
LA060909_00 Lake Peigneur L 1,158.9 F F N FWP TURBIDITY IRC 4a
LA060910_00 Boston Canal; includes associated canals (Estuarine) R 12.4 N F N FWP CARBOFURAN IRC 4a
LA060910_00 Boston Canal; includes associated canals (Estuarine) R 12.4 N F N PCR ENTEROCOCCUS IRC 5 L
LA060911_00
Dugas Canal-By Tiger Lagoon Oil and Gas Field
(Estuarine)
R 5.5 F F N FWP CARBOFURAN IRC 4a
LA060911_00
Dugas Canal-By Tiger Lagoon Oil and Gas Field
(Estuarine)
R 5.5 F F N FWP DISSOLVED OXYGEN IRC 4a
LA060911_00
Dugas Canal-By Tiger Lagoon Oil and Gas Field
(Estuarine)
R 5.5 F F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA060911_00
Dugas Canal-By Tiger Lagoon Oil and Gas Field
(Estuarine)
R 5.5 F F N FWP PHOSPHORUS, TOTAL IRC 4a
LA061001_00 West Cote Blanche Bay E 133.5 N F F F PCR ENTEROCOCCUS IRC 5 L
LA061002_00 East Cote Blanche Bay E 92.9 N F F N OYS FECAL COLIFORM IRC 5 M
LA061002_00 East Cote Blanche Bay E 92.9 N F F N PCR ENTEROCOCCUS IRC 5 L
LA061101_00
Bayou Petite Anse-From Bayou Carlin at its confluence
with Bayou Tigre to ICWW (Estuarine)
R 2.7 N N N FWP CARBOFURAN IRC 4a
LA061101_00
Bayou Petite Anse-From Bayou Carlin at its confluence
with Bayou Tigre to ICWW (Estuarine)
R 2.7 N N N FWP DISSOLVED OXYGEN IRC 5 L
LA061101_00
Bayou Petite Anse-From Bayou Carlin at its confluence
with Bayou Tigre to ICWW (Estuarine)
R 2.7 N N N FWP TURBIDITY IRC 4a
LA061101_00
Bayou Petite Anse-From Bayou Carlin at its confluence
with Bayou Tigre to ICWW (Estuarine)
R 2.7 N N N PCR ENTEROCOCCUS IRC 5 L
LA061101_00
Bayou Petite Anse-From Bayou Carlin at its confluence
with Bayou Tigre to ICWW (Estuarine)
R 2.7 N N N SCR FECAL COLIFORM IRC 5 L
Page 37 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA061102_00
Intracoastal Waterway-From 1/2 mile west of Gum
Island Canal to New Iberia Southern Drainage Canal
(Estuarine)
R 15.0 N F N FWP CARBOFURAN IRC 4a
LA061102_00
Intracoastal Waterway-From 1/2 mile west of Gum
Island Canal to New Iberia Southern Drainage Canal
(Estuarine)
R 15.0 N F N FWP TURBIDITY IRC 4a
LA061102_00
Intracoastal Waterway-From 1/2 mile west of Gum
Island Canal to New Iberia Southern Drainage Canal
(Estuarine)
R 15.0 N F N PCR ENTEROCOCCUS IRC 5 L
LA061103_00
Freshwater Bayou Canal-From 1/2 mile below ICWW to
control structure (Estuarine)
R 18.6 N F N FWP TURBIDITY IRC 4a
LA061103_00
Freshwater Bayou Canal-From 1/2 mile below ICWW to
control structure (Estuarine)
R 18.6 N F N PCR ENTEROCOCCUS IRC 5 L
LA061104_00 Vermilion Bay E 216.5 N F F F PCR ENTEROCOCCUS IRC 5 L
LA061104_001
Cypremort Point Beach-Located within subsegment
LA061104_00. This unit is added for swimming advisory
tracking purposes only and is not a subsegment as
defined by LAC 33:IX.1123.A. et seq. No other
assessment is made for this bayou.
C 0.5 N PCR ENTEROCOCCUS IRC 5 L
LA061105_00 Marsh Island (Estuarine) W 72,519.0 N F N N FWP TURBIDITY IRC 5 L
LA061105_00 Marsh Island (Estuarine) W 72,519.0 N F N N OYS FECAL COLIFORM IRC 5 M
LA061105_00 Marsh Island (Estuarine) W 72,519.0 N F N N PCR ENTEROCOCCUS IRC 5 L
LA061201_00
Vermilion-Teche River Basin Coastal Bays and Gulf
Waters to the State 3 mile limit
E 156.0 N F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA061201_00
Vermilion-Teche River Basin Coastal Bays and Gulf
Waters to the State 3 mile limit
E 156.0 N F N N OYS FECAL COLIFORM IRC 5 M
LA061201_00
Vermilion-Teche River Basin Coastal Bays and Gulf
Waters to the State 3 mile limit
E 156.0 N F N N PCR ENTEROCOCCUS IRC 5 L
LA070101_00
Mississippi River-From Arkansas state line to Old River
Control Structure
R 190.5 N F F PCR FECAL COLIFORM IRC 5 L
LA070102_00 Gassoway Lake L 782.0 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA070102_00 Gassoway Lake L 782.0 F F N FWP TURBIDITY IRC 5 L
LA070103_00 Marengo Bend-Portion within the Louisiana state line L 1,162.0 F F N F FWP TURBIDITY IRC 5 L
LA070201_00
Mississippi River-From Old River Control Structure to
Monte Sano Bayou
R 84.4 F F F N DWS 1,2-DICHLOROETHANE IRC 5 M
LA070202_00 Raccourci Old River L 4,592.0 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA070203_00 Devil's Swamp Lake and Bayou Baton Rouge L 64.3 N F N FWP DISSOLVED OXYGEN IRC 5 L
Page 38 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA070203_00 Devil's Swamp Lake and Bayou Baton Rouge L 64.3 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4b
LA070203_00 Devil's Swamp Lake and Bayou Baton Rouge L 64.3 N F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 5 L
LA070203_00 Devil's Swamp Lake and Bayou Baton Rouge L 64.3 N F N FWP OIL AND GREASE IRC 4b
LA070203_00 Devil's Swamp Lake and Bayou Baton Rouge L 64.3 N F N FWP PCBS - FISH CONSUMPTION ADVISORY IRC 4b
LA070203_00 Devil's Swamp Lake and Bayou Baton Rouge L 64.3 N F N FWP PHOSPHORUS, TOTAL IRC 5 L
LA070203_00 Devil's Swamp Lake and Bayou Baton Rouge L 64.3 N F N FWP TURBIDITY IRC 5 L
LA070203_00 Devil's Swamp Lake and Bayou Baton Rouge L 64.3 N F N PCR ARSENIC IRC 4b
LA070203_00 Devil's Swamp Lake and Bayou Baton Rouge L 64.3 N F N PCR HEXACHLOROBENZENE IRC 4b
LA070203_00 Devil's Swamp Lake and Bayou Baton Rouge L 64.3 N F N PCR HEXACHLOROBUTADIENE IRC 4b
LA070203_00 Devil's Swamp Lake and Bayou Baton Rouge L 64.3 N F N PCR LEAD IRC 4b
LA070203_00 Devil's Swamp Lake and Bayou Baton Rouge L 64.3 N F N PCR MERCURY IRC 4b
LA070301_00
Mississippi River-From Monte Sano Bayou to Head of
Passes
R 236.7 F F F F
LA070401_00
Mississippi River Passes-Head of Passes to Mouth of
Passes; includes all passes in the birdfoot delta
(Estuarine)
R 190.9 F F F N OYS FECAL COLIFORM IRC 4a
LA070501_00
Bayou Sara-From Mississippi state line to Mississippi
River
R 22.7 N F F PCR FECAL COLIFORM IRC 5-alt L
LA070502_00
Thompson Creek-From Mississippi state line to
Mississippi River
R 33.7 N F F PCR FECAL COLIFORM IRC 4a
LA070503_00 Capitol Lake L 55.4 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA070503_00 Capitol Lake L 55.4 F F N FWP PCBS - FISH CONSUMPTION ADVISORY IRC 4b
LA070504_00
Monte Sano Bayou-From US Highway 61 to Mississippi
River
R 6.3 F N LAL DISSOLVED OXYGEN IRC 5 L
LA070505_00 Tunica Bayou-From headwaters to Mississippi River R 8.9 N F F PCR FECAL COLIFORM IRC 5-alt L
LA070601_00
Mississippi River Basin Coastal Bays and Gulf Waters to
the State 3 mile limit
E 413.2 F F N N FWP DISSOLVED OXYGEN IRC 5RC L
LA070601_00
Mississippi River Basin Coastal Bays and Gulf Waters to
the State 3 mile limit
E 413.2 F F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA070601_00
Mississippi River Basin Coastal Bays and Gulf Waters to
the State 3 mile limit
E 413.2 F F N N OYS FECAL COLIFORM IRC 5 M
LA080101_00
Ouachita River-From Arkansas state line to Columbia
Lock and Dam
R 102.9 F F N N DWS COLOR IRC 5 L
Page 39 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA080101_00
Ouachita River-From Arkansas state line to Columbia
Lock and Dam
R 102.9 F F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA080102_00 Bayou Chauvin-From headwaters to Ouachita River R 6.6 N F N FWP DISSOLVED OXYGEN IRC 4a
LA080102_00 Bayou Chauvin-From headwaters to Ouachita River R 6.6 N F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA080102_00 Bayou Chauvin-From headwaters to Ouachita River R 6.6 N F N FWP NON-NATIVE AQUATIC PLANTS IRC 4a
LA080102_00 Bayou Chauvin-From headwaters to Ouachita River R 6.6 N F N FWP PHOSPHORUS, TOTAL IRC 4a
LA080102_00 Bayou Chauvin-From headwaters to Ouachita River R 6.6 N F N PCR FECAL COLIFORM IRC 4a
LA080201_00
Ouachita River-From Columbia Lock and Dam to
R 75.8 N F N FWP DISSOLVED OXYGEN IRC 4a
LA080201_00
Ouachita River-From Columbia Lock and Dam to
Jonesville
R 75.8 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080201_00
Ouachita River-From Columbia Lock and Dam to
Jonesville
R 75.8 N F N FWP TURBIDITY IRC 5 L
LA080201_00
Ouachita River-From Columbia Lock and Dam to
Jonesville
R 75.8 N F N PCR FECAL COLIFORM IRC 5 L
LA080202_00 Bayou Louis-From headwaters to Ouachita River R 8.7 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080202_00 Bayou Louis-From headwaters to Ouachita River R 8.7 N F N FWP TURBIDITY IRC 4a
LA080202_00 Bayou Louis-From headwaters to Ouachita River R 8.7 N F N PCR FECAL COLIFORM IRC 5 L
LA080203_00 Lake Louis L 756.4 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080203_00 Lake Louis L 756.4 N F N FWP TURBIDITY IRC 5 L
LA080203_00 Lake Louis L 756.4 N F N PCR FECAL COLIFORM IRC 5 L
LA080301_00
Black River-From Jonesville to Corps of Engineers
(USACE) Control Structure at Mile 25
R 16.6 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080301_00
Black River-From Jonesville to Corps of Engineers
(USACE) Control Structure at Mile 25
R 16.6 N F N PCR FECAL COLIFORM IRC 5 L
LA080302_00 Black River-From USACE Control Structure to Red River R 25.0 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080302_00 Black River-From USACE Control Structure to Red River R 25.0 N F N PCR FECAL COLIFORM IRC 5 L
LA080401_00
Bayou Bartholomew-From Arkansas state line to
Ouachita River; also known as Bayou Desiard and Lake
Bartholomew (Scenic to Dead Bayou)
R 72.5 F F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA080401_00
Bayou Bartholomew-From Arkansas state line to
Ouachita River; also known as Bayou Desiard and Lake
Bartholomew (Scenic to Dead Bayou)
R 72.5 F F N N FWP TURBIDITY IRC 4a
Page 40 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA080401_00
Bayou Bartholomew-From Arkansas state line to
Ouachita River; also known as Bayou Desiard and Lake
Bartholomew (Scenic to Dead Bayou)
R 72.5 F F N N ONR TURBIDITY IRC 4a
LA080501_00
Bayou de L'Outre-From Arkansas state line to Ouachita
River (Scenic)
R 55.9 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA080501_00
Bayou de L'Outre-From Arkansas state line to Ouachita
River (Scenic)
R 55.9 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080501_001
Hudson Lake-Located within subsegment LA080501_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this
waterbody.
L 13.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080501_00554678
Hatley Lake-Located within subsegment LA080501_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this
waterbody.
L 7.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080501_00555636
Phillips Lake-Located within subsegment LA080501_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this waterbody.
L 29.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080601_00 Bayou D'Arbonne-From headwaters to Lake Claiborne R 14.6 N F N FWP DISSOLVED OXYGEN IRC 5RC L
LA080601_00 Bayou D'Arbonne-From headwaters to Lake Claiborne R 14.6 N F N PCR FECAL COLIFORM IRC 5 L
LA080602_00 Lake Claiborne L 5,769.4 F F F F
LA080603_00
Bayou D'Arbonne-From Lake Claiborne to Bayou
D'Arbonne Lake
R 40.4 N F N FWP DISSOLVED OXYGEN IRC 4a
LA080603_00
Bayou D'Arbonne-From Lake Claiborne to Bayou
D'Arbonne Lake
R 40.4 N F N PCR FECAL COLIFORM IRC 5 L
LA080604_00 Bayou D'Arbonne Lake L 12,711.0 F F N FWP DISSOLVED OXYGEN IRC 5RC L
LA080605_00
Bayou D'Arbonne-From Bayou D'Arbonne Lake to
Ouachita River (Scenic)
R 27.5 F F N N FWP DISSOLVED OXYGEN IRC 5RC L
LA080605_00
Bayou D'Arbonne-From Bayou D'Arbonne Lake to
Ouachita River (Scenic)
R 27.5 F F N N ONR TURBIDITY IRC 5 L
LA080606_00
Cypress Creek-From headwaters to Bayou D'Arbonne;
includes Colvin Creek
R 35.8 N F N FWP SULFATE IRC 5RC L
Page 41 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA080606_00
Cypress Creek-From headwaters to Bayou D'Arbonne;
includes Colvin Creek
R 35.8 N F N PCR FECAL COLIFORM IRC 4a
LA080607_00
Corney Bayou-From Arkansas state line to Corney Lake
(Scenic)
R 15.4 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA080607_00
Corney Bayou-From Arkansas state line to Corney Lake
(Scenic)
R 15.4 F F N F FWP PH, LOW IRC 5RC L
LA080608_00 Corney Lake L 1,384.1 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080609_00
Corney Bayou-From Corney Lake to Bayou D'Arbonne
Lake (Scenic)
R 25.6 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA080610_00
Middle Fork Bayou D'Arbonne-From headwaters to
Bayou D'Arbonne Lake (Scenic)
R 63.3 F F F N ONR TURBIDITY IRC 5 L
LA080701_00
Bayou Desiard and Lake Bartholomew; also called Dead
Bayou
L 1,840.0 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080701_00553675
Black Bayou Lake (Ouachita Parish)-Located within
subsegment LA080701_00. This unit is added for
advisory tracking purposes only and is not a subsegment
as defined by LAC 33:IX.1123.A. et seq. No other
assessment is made for this lake.
L 799.7 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080801_00
South Cheniere Creek-From headwaters to Cheniere
Brake Lake
R 6.0 N F F PCR FECAL COLIFORM IRC 5 L
LA080802_00 Cheniere Brake Lake L 2,681.7 F F N FWP DISSOLVED OXYGEN IRC 5RC L
LA080802_00 Cheniere Brake Lake L 2,681.7 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080901_00 Boeuf River-From Arkansas state line to Ouachita River R 184.9 N N N FWP 4,4'-DDT IRC 4a
LA080901_00 Boeuf River-From Arkansas state line to Ouachita River R 184.9 N N N FWP CARBOFURAN IRC 4a
LA080901_00 Boeuf River-From Arkansas state line to Ouachita River R 184.9 N N N FWP DISSOLVED OXYGEN IRC 4a
LA080901_00 Boeuf River-From Arkansas state line to Ouachita River R 184.9 N N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080901_00 Boeuf River-From Arkansas state line to Ouachita River R 184.9 N N N FWP TOXAPHENE IRC 4a
LA080901_00 Boeuf River-From Arkansas state line to Ouachita River R 184.9 N N N FWP TURBIDITY IRC 4a
LA080901_00 Boeuf River-From Arkansas state line to Ouachita River R 184.9 N N N PCR FECAL COLIFORM IRC 5 L
Page 42 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA080901_00 Boeuf River-From Arkansas state line to Ouachita River R 184.9 N N N SCR FECAL COLIFORM IRC 5 L
LA080902_00 Bayou Bonne Idee-From headwaters to Boeuf River R 64.3 F F N FWP DISSOLVED OXYGEN IRC 4a
LA080902_00 Bayou Bonne Idee-From headwaters to Boeuf River R 64.3 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA080903_00
Big Creek-From headwaters to Boeuf River; includes Big
Colewa Bayou
R 83.0 F F N FWP 4,4'-DDT IRC 4a
LA080903_00
Big Creek-From headwaters to Boeuf River; includes Big
Colewa Bayou
R 83.0 F F N FWP ATRAZINE IRC 5 L
LA080903_00
Big Creek-From headwaters to Boeuf River; includes Big
Colewa Bayou
R 83.0 F F N FWP CARBOFURAN IRC 4a
LA080903_00
Big Creek-From headwaters to Boeuf River; includes Big
Colewa Bayou
R 83.0 F F N FWP METHYL PARATHION IRC 4a
LA080903_00
Big Creek-From headwaters to Boeuf River; includes Big
Colewa Bayou
R 83.0 F F N FWP TURBIDITY IRC 4a
LA080904_00
Bayou Lafourche-From headwaters to Boeuf River near
Columbia
R 57.2 N F N FWP 2,3,7,8-TETRACHLORODIBENZOFURAN IRC 4a
LA080904_00
Bayou Lafourche-From headwaters to Boeuf River near
Columbia
R 57.2 N F N FWP
2,3,7,8-TETRACHLORODIBENZO-P-
DIOXIN
IRC 4a
LA080904_00
Bayou Lafourche-From headwaters to Boeuf River near
Columbia
R 57.2 N F N FWP DISSOLVED OXYGEN IRC 4a
LA080904_00
Bayou Lafourche-From headwaters to Boeuf River near
Columbia
R 57.2 N F N FWP TURBIDITY IRC 4a
LA080904_00
Bayou Lafourche-From headwaters to Boeuf River near
Columbia
R 57.2 N F N PCR FECAL COLIFORM IRC 5 L
LA080904_00559693
Little Bayou Boeuf/Wham Brake-located within
LA080904_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this waterbody.
R 23.2 N FWP 2,3,7,8-TETRACHLORODIBENZOFURAN IRC 4a
LA080904_00559693
Little Bayou Boeuf/Wham Brake-located within
LA080904_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this waterbody.
R 23.2 N FWP
2,3,7,8-TETRACHLORODIBENZO-P-
DIOXIN
IRC 4a
LA080905_00
Turkey Creek-From headwaters to Turkey Creek Cutoff;
includes Turkey Creek Cutoff, Big Creek, and Glade
Slough
R 34.9 N N FWP DISSOLVED OXYGEN IRC 5-alt L
Page 43 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA080905_00
Turkey Creek-From headwaters to Turkey Creek Cutoff;
includes Turkey Creek Cutoff, Big Creek, and Glade
Slough
R 34.9 N N SCR FECAL COLIFORM IRC 4a
LA080906_00
Turkey Creek-From Turkey Creek Cutoff to Turkey Creek
Lake
R 19.4 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA080907_00 Turkey Creek Lake; includes outfall to Boeuf River L 4,877.9 F F N FWP TURBIDITY IRC 5 L
LA080908_00 Lake LaFourche L 293.0 F N N FWP DISSOLVED OXYGEN IRC 5 L
LA080908_00 Lake LaFourche L 293.0 F N N FWP TURBIDITY IRC 5 L
LA080908_00 Lake LaFourche L 293.0 F N N SCR FECAL COLIFORM IRC 5 L
LA080909_00 Crew Lake L 81.3 F F N FWP DISSOLVED OXYGEN IRC 4a
LA080909_00 Crew Lake L 81.3 F F N FWP TURBIDITY IRC 5 L
LA080910_00 Clear Lake L 108.1 F F F
LA080911_00 Woolen Lake L 274.4 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA080912_00
Tisdale Brake and Staulkinghead Creek-From
headwaters to Little Bayou Boeuf
R 10.2 F N LAL 2,3,7,8-TETRACHLORODIBENZOFURAN IRC 4a
LA080912_00
Tisdale Brake and Staulkinghead Creek-From
headwaters to Little Bayou Boeuf
R 10.2 F N LAL
2,3,7,8-TETRACHLORODIBENZO-P-
DIOXIN
IRC 4a
LA081001_00 Bayou Macon-From Arkansas state line to Tensas River R 124.0 F F N FWP 4,4'-DDT IRC 4a
LA081001_00 Bayou Macon-From Arkansas state line to Tensas River R 124.0 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA081001_00 Bayou Macon-From Arkansas state line to Tensas River R 124.0 F F N FWP TURBIDITY IRC 4a
LA081002_00 Joe's Bayou-From headwaters to Bayou Macon R 72.4 F F N FWP 4,4'-DDT IRC 4a
LA081002_00 Joe's Bayou-From headwaters to Bayou Macon R 72.4 F F N FWP CARBOFURAN IRC 4a
LA081002_00 Joe's Bayou-From headwaters to Bayou Macon R 72.4 F F N FWP DISSOLVED OXYGEN IRC 4a
LA081002_00 Joe's Bayou-From headwaters to Bayou Macon R 72.4 F F N FWP TURBIDITY IRC 4a
LA081003_00 Deer Creek-From headwaters to Boeuf River R 45.8 F N LAL DISSOLVED OXYGEN IRC 4a
LA081101_00 Lake Providence L 1,448.4 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA081201_00
Tensas River-From headwaters to confluence with
Ouachita River; includes Tensas Bayou
R 176.7 N F N FWP CARBOFURAN IRC 4a
LA081201_00
Tensas River-From headwaters to confluence with
Ouachita River; includes Tensas Bayou
R 176.7 N F N FWP DISSOLVED OXYGEN IRC 4a
LA081201_00
Tensas River-From headwaters to confluence with
Ouachita River; includes Tensas Bayou
R 176.7 N F N FWP TURBIDITY IRC 4a
LA081201_00
Tensas River-From headwaters to confluence with
Ouachita River; includes Tensas Bayou
R 176.7 N F N PCR FECAL COLIFORM IRC 5 L
LA081202_00 Lake St. Joseph L 1,336.1 F F N FWP DISSOLVED OXYGEN IRC 4a
Page 44 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA081202_00 Lake St. Joseph L 1,336.1 F F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA081202_00 Lake St. Joseph L 1,336.1 F F N FWP PHOSPHORUS, TOTAL IRC 4a
LA081202_00 Lake St. Joseph L 1,336.1 F F N FWP TURBIDITY IRC 4a
LA081203_00 Lake Bruin L 2,991.2 F F N F FWP PH, HIGH IRC 5 L
LA081301_00 Little River-From dam at Archie to Ouachita River R 13.0 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081301_00 Little River-From dam at Archie to Ouachita River R 13.0 N F N FWP PH, HIGH IRC 5 L
LA081301_00 Little River-From dam at Archie to Ouachita River R 13.0 N F N PCR FECAL COLIFORM IRC 5 L
LA081301_00556223
Tew Lake-Located within subsegment LA081301_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this
waterbody.
L 235.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA081401_00 Dugdemona River-From headwaters to Big Creek R 81.4 F F F
LA081402_00 Dugdemona River-From Big Creek to Little River R 55.4 F F F
LA081501_00 Castor Creek-From headwaters to Little River R 109.7 N F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA081501_00 Castor Creek-From headwaters to Little River R 109.7 N F N PCR FECAL COLIFORM IRC 5 L
LA081502_00 Chatham Lake L 115.0 F F N FWP DISSOLVED OXYGEN IRC 5RC L
LA081503_00 Beaucoup Creek-From headwaters to Castor Creek R 24.3 F F F
LA081504_00 Flat Creek-From headwaters to Castor Creek R 49.2 N F N FWP DISSOLVED OXYGEN IRC 4a
LA081504_00 Flat Creek-From headwaters to Castor Creek R 49.2 N F N PCR FECAL COLIFORM IRC 5 L
LA081505_00 Caney Lake L 4,734.1 F F F
LA081601_00
Little River-From Castor Creek-Dugdemona confluence
to Bear Creek (Scenic)
R 11.0 N F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081601_00
Little River-From Castor Creek-Dugdemona confluence
to Bear Creek (Scenic)
R 11.0 N F N N FWP TURBIDITY IRC 4a
LA081601_00
Little River-From Castor Creek-Dugdemona confluence
to Bear Creek (Scenic)
R 11.0 N F N N ONR TURBIDITY IRC 4a
LA081601_00
Little River-From Castor Creek-Dugdemona confluence
to Bear Creek (Scenic)
R 11.0 N F N N PCR FECAL COLIFORM IRC 5 L
LA081602_00 Little River-From Bear Creek to Catahoula Lake (Scenic) R 51.7 F F N N FWP DISSOLVED OXYGEN IRC 5 L
LA081602_00 Little River-From Bear Creek to Catahoula Lake (Scenic) R 51.7 F F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081602_00 Little River-From Bear Creek to Catahoula Lake (Scenic) R 51.7 F F N N FWP TURBIDITY IRC 4a
LA081602_00 Little River-From Bear Creek to Catahoula Lake (Scenic) R 51.7 F F N N ONR TURBIDITY IRC 4a
Page 45 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA081603_00 Catahoula Lake L 16,509.1 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA081603_00 Catahoula Lake L 16,509.1 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081603_00 Catahoula Lake L 16,509.1 F F N FWP TURBIDITY IRC 5 L
LA081604_00
Catahoula Lake Diversion Canal-From Catahoula Lake to
Black River
R 16.1 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081605_00 Little River-From Catahoula Lake to dam at Archie R 11.2 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA081605_00 Little River-From Catahoula Lake to dam at Archie R 11.2 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081606_00 Fish Creek-From headwaters to Little River (Scenic) R 24.2 N F N F FWP DISSOLVED OXYGEN IRC 5 L
LA081606_00 Fish Creek-From headwaters to Little River (Scenic) R 24.2 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081606_00 Fish Creek-From headwaters to Little River (Scenic) R 24.2 N F N F FWP PH, HIGH IRC 5 L
LA081606_00 Fish Creek-From headwaters to Little River (Scenic) R 24.2 N F N F PCR FECAL COLIFORM IRC 5 L
LA081607_00 Trout Creek-From headwaters to Little River (Scenic) R 19.6 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081608_00 Big Creek-From headwaters to Little River (Scenic) R 28.2 N F N F N FWP DISSOLVED OXYGEN IRC 5 L
LA081608_00 Big Creek-From headwaters to Little River (Scenic) R 28.2 N F N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081608_00 Big Creek-From headwaters to Little River (Scenic) R 28.2 N F N F N ONR TURBIDITY IRC 5 L
LA081608_00 Big Creek-From headwaters to Little River (Scenic) R 28.2 N F N F N PCR FECAL COLIFORM IRC 4a
LA081609_00
Hemphill Creek-From headwaters to Catahoula Lake;
includes Hair Creek
R 26.8 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081610_00 Old River-From Catahoula Lake to Little River R 8.4 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA081610_00 Old River-From Catahoula Lake to Little River R 8.4 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081610_001
Big Bushley Creek-Located within subsegment
LA081610_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this waterbody.
R 2.8 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081610_002
Bushley Bayou-Located within subsegment
LA081610_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this waterbody.
R 5.1 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
Page 46 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA081610_003
Bushley Creek-Located within subsegment
LA081610_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this waterbody.
R 17.3 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081611_00 Bayou Funny Louis-From headwaters to Little River R 62.5 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA081611_00 Bayou Funny Louis-From headwaters to Little River R 62.5 N F N PCR FECAL COLIFORM IRC 5 L
LA081612_00 Georgetown Reservoir L 28.9 F F F F N ONR TURBIDITY IRC 5 L
LA090101_00
Pearl River-From Mississippi state line to Pearl River
Navigation Canal
R 40.9 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090102_00 East Pearl River-From Holmes Bayou to Interstate 10 R 25.7 F F N FWP CHLORIDE IRC 5 L
LA090102_00 East Pearl River-From Holmes Bayou to Interstate 10 R 25.7 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA090102_00 East Pearl River-From Holmes Bayou to Interstate 10 R 25.7 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090103_00
East Pearl River-From Interstate 10 to Lake Borgne
(Estuarine)
R 15.4 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090103_00
East Pearl River-From Interstate 10 to Lake Borgne
(Estuarine)
R 15.4 N F N PCR ENTEROCOCCUS IRC 5 L
LA090104_00 Peters Creek-From headwaters to Pearl River R 12.0 N F F PCR FECAL COLIFORM IRC 4a
LA090105_00
Pearl River Navigation Canal-From Pools Bluff to Lock
No. 3
R 4.8 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090106_00
Holmes Bayou-From Pearl River to West Pearl River
(Scenic)
R 4.1 F F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090106_00
Holmes Bayou-From Pearl River to West Pearl River
(Scenic)
R 4.1 F F N N FWP TURBIDITY IRC 4a
LA090106_00
Holmes Bayou-From Pearl River to West Pearl River
(Scenic)
R 4.1 F F N N ONR TURBIDITY IRC 4a
LA090107_00
Pearl River-From Pearl River Navigation Canal to Holmes
Bayou
R 36.1 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090107_00
Pearl River-From Pearl River Navigation Canal to Holmes
Bayou
R 36.1 F F N FWP TURBIDITY IRC 5 L
LA090201_00
West Pearl River-From headwaters to Holmes Bayou
(Scenic)
R 9.2 F F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090201_00
West Pearl River-From headwaters to Holmes Bayou
(Scenic)
R 9.2 F F N N FWP TURBIDITY IRC 4a
Page 47 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA090201_00
West Pearl River-From headwaters to Holmes Bayou
(Scenic)
R 9.2 F F N N ONR TURBIDITY IRC 4a
LA090202_00
West Pearl River-From Holmes Bayou to The Rigolets;
includes east and west mouths (Scenic)
R 31.9 F F N F FWP DISSOLVED OXYGEN IRC 5 L
LA090202_00
West Pearl River-From Holmes Bayou to The Rigolets;
includes east and west mouths (Scenic)
R 31.9 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090203_00
Lower Bogue Chitto-From Pearl River Navigation Canal
to Wilsons Slough
R 11.0 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090204_00
Pearl River Navigation Canal-From below Lock No. 3 to
West Pearl River
R 15.5 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090205_00
Wilson Slough and Bradley Slough-From Pearl River to
West Pearl River (Scenic)
R 8.0 F F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090205_00
Wilson Slough and Bradley Slough-From Pearl River to
West Pearl River (Scenic)
R 8.0 F F N N FWP SULFATE IRC 5 L
LA090205_00
Wilson Slough and Bradley Slough-From Pearl River to
West Pearl River (Scenic)
R 8.0 F F N N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA090205_00
Wilson Slough and Bradley Slough-From Pearl River to
West Pearl River (Scenic)
R 8.0 F F N N FWP TURBIDITY IRC 5RC L
LA090205_00
Wilson Slough and Bradley Slough-From Pearl River to
West Pearl River (Scenic)
R 8.0 F F N N ONR TURBIDITY IRC 5RC L
LA090207_00
Middle Pearl River and West Middle Pearl River-From
West Pearl River to Little Lake
R 25.0 F F N FWP DISSOLVED OXYGEN IRC 4a
LA090207_00
Middle Pearl River and West Middle Pearl River-From
West Pearl River to Little Lake
R 25.0 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090208_00 Little Lake (Estuarine) E 3.0 N F F PCR ENTEROCOCCUS IRC 5 L
LA090209_00
Morgan River-From Porters River to West Pearl River
(Scenic)
R 2.2 F F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090209_00
Morgan River-From Porters River to West Pearl River
(Scenic)
R 2.2 F F N N ONR TURBIDITY IRC 5 L
LA090301_00
Pushepatapa Creek-From headwaters and tributaries at
Mississippi state line to Pearl River floodplain (Scenic)
R 27.0 F F F N ONR TURBIDITY IRC 5 L
LA090401_00
Bogue Lusa Creek-From headwaters to Pearl River
floodplain
R 30.4 N F F PCR FECAL COLIFORM IRC 4a
LA090501_00
Bogue Chitto River-From Mississippi state line to Pearl
River Navigation Canal (Scenic)
R 59.3 F F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA090501_00
Bogue Chitto River-From Mississippi state line to Pearl
River Navigation Canal (Scenic)
R 59.3 F F N N ONR TURBIDITY IRC 4a
Page 48 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA090502_00 Big Silver Creek-From headwaters to Bogue Chitto River R 15.4 F F F
LA090503_00 Little Silver Creek-From headwaters to Big Silver Creek R 17.8 F F F
LA090504_00 Lawrence Creek-From headwaters to Bogue Chitto River R 17.9 F F F
LA090505_00 Bonner Creek-From headwaters to Bogue Chitto River R 8.3 F F F
LA090506_00 Thigpen Creek-From headwaters to Bogue Chitto River R 10.8 N F N FWP LEAD IRC 5 L
LA090506_00 Thigpen Creek-From headwaters to Bogue Chitto River R 10.8 N F N PCR FECAL COLIFORM IRC 4a
LA100101_00
Red River-From Arkansas state line to US Highway 165 in
Alexandria
R 196.3 F F N F F FWP SULFATE IRC 5 L
LA100201_00
Red River-From US Highway 165 to Old River Control
Structure Outflow Channel
R 91.5 F F F
LA100202_00
Little River-From headwaters to Old River near
Marksville
R 12.5 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA100202_00
Little River-From headwaters to Old River near
Marksville
R 12.5 N F N PCR FECAL COLIFORM IRC 5 L
LA100203_00
Old River; includes associated water bodies in Spring
Bayou WMA; also called LaVielle Riviere
R 51.1 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA100203_00
Old River; includes associated water bodies in Spring
Bayou WMA; also called LaVielle Riviere
R 51.1 N F N PCR FECAL COLIFORM IRC 5 L
LA100301_00
Black Bayou-From Texas state line to La. Highway 1 at
Black Bayou Lake
R 6.7 F F N F FWP DISSOLVED OXYGEN IRC 5 L
LA100302_00 Black Bayou Lake-From La. Highway 1 to spillway L 4,382.4 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA100302_00 Black Bayou Lake-From La. Highway 1 to spillway L 4,382.4 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA100303_00
Black Bayou-From spillway at Black Bayou Lake to
Twelve Mile Bayou
R 17.6 F F F
LA100304_00 Twelve Mile Bayou-From headwaters to Red River R 22.8 F F N F F FWP DISSOLVED OXYGEN IRC 5RC L
LA100305_00
Mahlin Bayou and McCain Creek-From headwaters to
Twelve Mile Bayou
R 14.3 N F SCR FECAL COLIFORM IRC 5 L
LA100306_00 Kelly Bayou-From Arkansas state line to Black Bayou R 17.0 F F F F
LA100307_00
Caddo Lake-From Texas state line to spillway; includes
James Bayou
L 15,758.0 F F N N F DWS COLOR IRC 5 L
Page 49 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA100307_00
Caddo Lake-From Texas state line to spillway; includes
James Bayou
L 15,758.0 F F N N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA100308_00
Paw Paw Bayou-From Texas state line to Cross Lake;
includes tributaries
R 5.8 F F N N F DWS COLOR IRC 5 L
LA100308_00
Paw Paw Bayou-From Texas state line to Cross Lake;
includes tributaries
R 5.8 F F N N F FWP DISSOLVED OXYGEN IRC 5RC L
LA100308_00
Paw Paw Bayou-From Texas state line to Cross Lake;
includes tributaries
R 5.8 F F N N F FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA100309_00
Cross Bayou-From Texas state line to Cross Lake;
includes tributaries
R 15.0 F F N N F DWS COLOR IRC 5 L
LA100309_00
Cross Bayou-From Texas state line to Cross Lake;
includes tributaries
R 15.0 F F N N F FWP CHLORIDE IRC 4a
LA100309_00
Cross Bayou-From Texas state line to Cross Lake;
includes tributaries
R 15.0 F F N N F FWP DISSOLVED OXYGEN IRC 5 L
LA100309_00
Cross Bayou-From Texas state line to Cross Lake;
includes tributaries
R 15.0 F F N N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 5 L
LA100309_00
Cross Bayou-From Texas state line to Cross Lake;
includes tributaries
R 15.0 F F N N F FWP PHOSPHORUS, TOTAL IRC 5 L
LA100309_00
Cross Bayou-From Texas state line to Cross Lake;
includes tributaries
R 15.0 F F N N F FWP SULFATE IRC 4a
LA100309_00
Cross Bayou-From Texas state line to Cross Lake;
includes tributaries
R 15.0 F F N N F FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA100310_00 Cross Lake; includes tributaries L 8,138.0 F F F F F
LA100401_00
Bayou Bodcau-From Arkansas state line to Red Chute
Bayou at Cypress Bayou confluence
R 58.0 F F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA100401_00556575
Ivan Lake-Located within subsegment LA100401_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this lake.
L 520.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA100402_00 Red Chute Bayou-From Cypress Bayou to Flat River R 35.8 N N N FWP DISSOLVED OXYGEN IRC 5 L
LA100402_00 Red Chute Bayou-From Cypress Bayou to Flat River R 35.8 N N N PCR FECAL COLIFORM IRC 5 L
LA100402_00 Red Chute Bayou-From Cypress Bayou to Flat River R 35.8 N N N SCR FECAL COLIFORM IRC 5 L
LA100403_00
Cypress Bayou-From headwaters to Cypress Bayou
Reservoir
R 33.1 F F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA100403_00
Cypress Bayou-From headwaters to Cypress Bayou
Reservoir
R 33.1 F F N F FWP PH, LOW IRC 5 L
LA100404_00 Cypress Bayou Reservoir L 2,840.6 F F F N F DWS COLOR IRC 5 L
Page 50 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA100405_00
Black Bayou-From headwaters to spillway at Black
Bayou Reservoir; includes Black Bayou Reservoir
R 14.2 F F F F
LA100406_00 Flat River-From headwaters to Loggy Bayou R 55.0 N F N FWP DISSOLVED OXYGEN IRC 4a
LA100406_00 Flat River-From headwaters to Loggy Bayou R 55.0 N F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA100406_00 Flat River-From headwaters to Loggy Bayou R 55.0 N F N PCR FECAL COLIFORM IRC 4a
LA100501_00
Bayou Dorcheat-From Arkansas state line to Lake
Bistineau (Scenic)
R 53.1 F F N F F FWP DISSOLVED OXYGEN IRC 4a
LA100501_00
Bayou Dorcheat-From Arkansas state line to Lake
Bistineau (Scenic)
R 53.1 F F N F F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA100502_00 Lake Bistineau L 14,447.0 F F N F FWP DISSOLVED OXYGEN IRC 5 L
LA100502_00 Lake Bistineau L 14,447.0 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA100502_00 Lake Bistineau L 14,447.0 F F N F FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA100503_00
Caney Creek-From headwaters to Bayou Dorcheat;
excludes Caney Lake
R 4.1 N F F F PCR FECAL COLIFORM IRC 5 L
LA100504_00 Caney Lake L 361.0 N F F F PCR TEMPERATURE IRC 5 L
LA100505_00 Loggy Bayou-From Lake Bistineau dam to Flat River R 9.2 F F N F FWP DISSOLVED OXYGEN IRC 5 L
LA100506_00 Loggy Bayou-From Flat River to Red River R 8.1 F F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA100601_00 Bayou Pierre-From headwaters to Rolling Lake Bayou R 35.5 N F F F PCR FECAL COLIFORM IRC 5 L
LA100602_00 Boggy Bayou-From headwaters to Wallace Lake R 25.5 N F F F PCR FECAL COLIFORM IRC 5 L
LA100603_00 Wallace Lake L 2,711.0 I F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA100603_00 Wallace Lake L 2,711.0 I F N F FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA100604_00 Wallace Bayou-From Wallace Lake to Bayou Pierre R 3.4 F F F F
LA100605_00
Clear Lake and Smithport Lake; includes old Edwards
Lake
L 2,752.0 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA100605_00
Clear Lake and Smithport Lake; includes old Edwards
Lake
L 2,752.0 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA100605_00
Clear Lake and Smithport Lake; includes old Edwards
Lake
L 2,752.0 F F N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA100605_00
Clear Lake and Smithport Lake; includes old Edwards
Lake
L 2,752.0 F F N F FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA100605_00
Clear Lake and Smithport Lake; includes old Edwards
Lake
L 2,752.0 F F N F FWP PHOSPHORUS, TOTAL IRC 4a
LA100606_00 Bayou Pierre-From Rolling Lake Bayou to Red River R 49.6 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA100606_00 Bayou Pierre-From Rolling Lake Bayou to Red River R 49.6 N F N F PCR FECAL COLIFORM IRC 5 L
LA100701_00
Black Lake Bayou-From headwaters to 1 mile north of
confluence with Leatherman Creek
R 37.0 F F N F FWP DISSOLVED OXYGEN IRC 5RC L
Page 51 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA100701_00
Black Lake Bayou-From headwaters to 1 mile north of
confluence with Leatherman Creek
R 37.0 F F N F FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA100702_00
Black Lake Bayou-From 1 mile north of Leatherman
Creek to Black Lake (Scenic)
R 48.6 N F N F F FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA100702_00
Black Lake Bayou-From 1 mile north of Leatherman
Creek to Black Lake (Scenic)
R 48.6 N F N F F PCR FECAL COLIFORM IRC 5 L
LA100703_00 Black Lake and Clear Lake L 10,679.0 F F N N F DWS COLOR IRC 5 L
LA100703_00 Black Lake and Clear Lake L 10,679.0 F F N N F FWP DISSOLVED OXYGEN IRC 4a
LA100703_00 Black Lake and Clear Lake L 10,679.0 F F N N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA100704_00 Kepler Creek-From headwaters to Kepler Creek Lake R 12.5 F F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA100704_00 Kepler Creek-From headwaters to Kepler Creek Lake R 12.5 F F N F FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA100705_00 Kepler Creek Lake L 1,842.0 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA100706_00
Kepler Creek-From Kepler Creek Lake to Black Lake
Bayou
R 1.8 F F F F
LA100707_00 Castor Creek-From headwaters to Black Lake Bayou R 18.1 N F F PCR FECAL COLIFORM IRC 4a
LA100708_00 Castor Creek Tributary-From headwaters to Castor Creek R 1.5 F N FWP SULFATE IRC 4a
LA100708_00 Castor Creek Tributary-From headwaters to Castor Creek R 1.5 F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA100709_00 Grand Bayou-From headwaters to Black Lake Bayou R 54.6 F F N N DWS COLOR IRC 5 L
LA100709_00 Grand Bayou-From headwaters to Black Lake Bayou R 54.6 F F N N FWP DISSOLVED OXYGEN IRC 5RC L
LA100709_00 Grand Bayou-From headwaters to Black Lake Bayou R 54.6 F F N N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA100709_001
Grand Bayou Reservoir-Located within subsegment
LA100709_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this lake.
L 2,700.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA100710_00
Grand Bayou Tributary-From headwaters to Grand
Bayou
R 2.2 F N FWP CHLORIDE IRC 4a
LA100710_00
Grand Bayou Tributary-From headwaters to Grand
Bayou
R 2.2 F N FWP DISSOLVED OXYGEN IRC 5 L
Page 52 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA100710_00
Grand Bayou Tributary-From headwaters to Grand
Bayou
R 2.2 F N FWP SULFATE IRC 4a
LA100710_00
Grand Bayou Tributary-From headwaters to Grand
Bayou
R 2.2 F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA100801_00
Saline Bayou-From headwaters near Arcadia to Saline
Lake (Scenic)
R 83.5 F F N F F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA100802_00 Saline Lake L 6,344.0 F F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA100802_00 Saline Lake L 6,344.0 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 5 L
LA100803_00 Saline Bayou-From Saline Lake to Red River R 12.9 F F N F FWP DISSOLVED OXYGEN IRC 4a
LA100804_00
Saline Bayou Tributary-From headwaters to Saline
Bayou near Arcadia
R 2.9 F N FWP AMMONIA, TOTAL IRC 5 L
LA100804_00
Saline Bayou Tributary-From headwaters to Saline
Bayou near Arcadia
R 2.9 F N FWP SULFATE IRC 4a
LA100804_00
Saline Bayou Tributary-From headwaters to Saline
Bayou near Arcadia
R 2.9 F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA100901_00 Nantaches Creek-From headwaters to Nantaches Lake R 27.6 N F N F FWP DISSOLVED OXYGEN IRC 5RC L
LA100901_00 Nantaches Creek-From headwaters to Nantaches Lake R 27.6 N F N F PCR FECAL COLIFORM IRC 4a
LA100902_00 Nantaches Lake L 1,422.0 F F N F FWP DISSOLVED OXYGEN IRC 5 L
LA101001_00 Sibley Lake L 1,830.4 N F F F F PCR TEMPERATURE IRC 5 L
LA101101_00 Cane River-From above Natchitoches to Red River R 66.4 F F N F FWP DISSOLVED OXYGEN IRC 5 L
LA101101_00 Cane River-From above Natchitoches to Red River R 66.4 F F N F FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA101102_00
Kisatchie Bayou-From headwaters to Kisatchie National
Forest
R 7.4 F F F F
LA101103_00
Kisatchie Bayou-From Kisatchie National Forest to Old
River (Scenic)
R 45.8 F F F N F ONR TURBIDITY IRC 5 L
LA101201_00 Cotile Reservoir L 1,602.4 F F F
LA101301_00 Rigolette Bayou-From headwaters to Red River R 26.5 N F F F PCR FECAL COLIFORM IRC 4a
LA101302_00 Iatt Lake L 6,280.3 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA101302_00 Iatt Lake L 6,280.3 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA101302_00 Iatt Lake L 6,280.3 N F N F FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA101302_00 Iatt Lake L 6,280.3 N F N F PCR FECAL COLIFORM IRC 5 L
LA101303_00 Iatt Creek-From headwaters to Iatt Lake R 39.1 N F N F FWP DISSOLVED OXYGEN IRC 4a
LA101303_00 Iatt Creek-From headwaters to Iatt Lake R 39.1 N F N F PCR FECAL COLIFORM IRC 5 L
LA101401_00 Buhlow Lake near Pineville L 204.2 N F F PCR FECAL COLIFORM IRC 5 L
Page 53 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA101501_00 Big Saline Bayou-From Catahoula Lake to Saline Lake R 12.0 F F N FWP DISSOLVED OXYGEN IRC 5RC L
LA101501_00 Big Saline Bayou-From Catahoula Lake to Saline Lake R 12.0 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA101502_00 Saline Lake L 2,026.0 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA101502_00 Saline Lake L 2,026.0 N F N PCR TEMPERATURE IRC 5 L
LA101502_00537480
Muddy Bayou-Located within subsegment
LA101502_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this waterbody.
R 10.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA101504_00 Saline Bayou-From Larto Lake to Saline Lake (Scenic) R 14.9 F F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA101504_001
Cross Bayou-Located within subsegment LA101504_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this waterbody.
R 4.2 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA101504_002
Shad Lake-Located within subsegment LA101504_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this waterbody.
L 307.0 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA101505_00 Larto Lake L 2,525.1 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA101505_00 Larto Lake L 2,525.1 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA101506_00 Big Creek-From headwaters to Saline Lake R 12.4 N F N FWP DISSOLVED OXYGEN IRC 4a
LA101506_00 Big Creek-From headwaters to Saline Lake R 12.4 N F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA101506_00 Big Creek-From headwaters to Saline Lake R 12.4 N F N PCR FECAL COLIFORM IRC 5 L
LA101506_001
Open Bayou-Located within subsegment LA101506_00.
This unit is added for advisory tracking purposes only
and is not a subsegment as defined by LAC 33:IX.1123.A.
et seq. No other assessment is made for this waterbody.
R 2.8 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA101507_00
Old Saline Bayou - From headwaters to control structure
at Saline Bayou
R 6.4 I I I
Page 54 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA101601_00
Bayou Cocodrie-From Little Cross Bayou to Wild Cow
Bayou (Scenic)
R 29.3 F F N N F FWP DISSOLVED OXYGEN IRC 5 L
LA101601_00
Bayou Cocodrie-From Little Cross Bayou to Wild Cow
Bayou (Scenic)
R 29.3 F F N N F FWP TURBIDITY IRC 4a
LA101601_00
Bayou Cocodrie-From Little Cross Bayou to Wild Cow
Bayou (Scenic)
R 29.3 F F N N F ONR TURBIDITY IRC 4a
LA101602_00 Cocodrie Lake L 1,184.3 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA101602_00 Cocodrie Lake L 1,184.3 F F N FWP TURBIDITY IRC 5 L
LA101603_00 Lake St. John L 2,126.4 N F N FWP PH, HIGH IRC 5 L
LA101603_00 Lake St. John L 2,126.4 N F N PCR FECAL COLIFORM IRC 5 L
LA101603_00 Lake St. John L 2,126.4 N F N PCR TEMPERATURE IRC 5 L
LA101604_00 Lake Concordia L 1,025.1 F F F
LA101605_00 Bayou Cocodrie-From Lake Concordia to La. Highway 15 R 1.5 N F N FWP DISSOLVED OXYGEN IRC 4a
LA101605_00 Bayou Cocodrie-From Lake Concordia to La. Highway 15 R 1.5 N F N PCR FECAL COLIFORM IRC 5 L
LA101606_00 Bayou Cocodrie-From Wild Cow Bayou to Red River R 22.1 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA101606_00 Bayou Cocodrie-From Wild Cow Bayou to Red River R 22.1 N F N PCR FECAL COLIFORM IRC 5 L
LA101607_00
Bayou Cocodrie-From La. Highway 15 to Little Cross
Bayou
R 7.1 F F
LA110101_00
Toledo Bend Reservoir-From Texas-Louisiana state line
to Toledo Bend Dam
L 165,487.2 F F N F F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA110101_00
Toledo Bend Reservoir-From Texas-Louisiana state line
to Toledo Bend Dam
L 165,487.2 F F N F F FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA110201_00
Sabine River-From Toledo Bend Dam to Old River below
Sabine Island WMA
R 131.4 F F F
LA110201_00537846
Old River (Nibletts Bluff)-Located within subsegment
LA110201_00. This unit is added for advisory tracking
purposes only and is not a subsegment as defined by
LAC 33:IX.1123.A. et seq. No other assessment is made
for this river.
R 13.8 N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA110202_00 Pearl Creek-From headwaters to Sabine River (Scenic) R 10.6 N F F F PCR FECAL COLIFORM IRC 4a
LA110301_00
Sabine River-From Old River below Sabine Island WMA
to Sabine Lake (Estuarine)
R 20.1 N F F PCR ENTEROCOCCUS IRC 5 L
LA110302_00
Black Bayou-From Pirogue Ditch to Sabine Lake
(Estuarine)
R 14.2 N F F PCR ENTEROCOCCUS IRC 5 L
LA110303_00 Sabine Lake (Estuarine) E 89.1 N F F N OYS FECAL COLIFORM IRC 5 M
LA110303_00 Sabine Lake (Estuarine) E 89.1 N F F N PCR ENTEROCOCCUS IRC 5 L
Page 55 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA110304_00 Sabine Pass (Estuarine) R 8.4 N F F N OYS FECAL COLIFORM IRC 5 M
LA110304_00 Sabine Pass (Estuarine) R 8.4 N F F N PCR ENTEROCOCCUS IRC 5 L
LA110401_00 Bayou Toro-From headwaters to La. Highway 473 R 17.6 N F F PCR FECAL COLIFORM IRC 4a
LA110402_00 Bayou Toro-From La. Highway 473 to Sabine River R 14.7 F F F
LA110501_00 West Anacoco Creek-From headwaters to Vernon Lake R 18.3 F F N FWP DISSOLVED OXYGEN IRC 4a
LA110502_00 East Anacoco Creek-From headwaters to Vernon Lake R 6.2 N F F PCR FECAL COLIFORM IRC 5 L
LA110503_00 Vernon Lake L 4,021.9 F F N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA110503_00 Vernon Lake L 4,021.9 F F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA110504_00 Bayou Anacoco-From Vernon Lake to Anacoco Lake R 5.9 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA110505_00 Anacoco Lake L 2,184.2 F F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA110505_00 Anacoco Lake L 2,184.2 F F N FWP TURBIDITY IRC 5 L
LA110506_00 Bayou Anacoco-From Anacoco Lake to Cypress Creek R 27.1 N F F PCR FECAL COLIFORM IRC 5 L
LA110507_00 Bayou Anacoco-From Cypress Creek to Sabine River R 18.1 N F F PCR FECAL COLIFORM IRC 5 L
LA110601_00 Vinton Waterway-From Vinton to ICWW (Estuarine) R 9.6 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA110601_00 Vinton Waterway-From Vinton to ICWW (Estuarine) R 9.6 N F N PCR ENTEROCOCCUS IRC 5 L
LA110602_00 Black Bayou-From ICWW to Pirogue Ditch (Estuarine) R 7.0 N F F PCR ENTEROCOCCUS IRC 5 L
LA110701_00
Sabine River Basin Coastal Bays and Gulf Waters to the
State 3 mile limit
E 83.5 N F N N FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA110701_00
Sabine River Basin Coastal Bays and Gulf Waters to the
State 3 mile limit
E 83.5 N F N N OYS FECAL COLIFORM IRC 5 M
LA110701_00
Sabine River Basin Coastal Bays and Gulf Waters to the
State 3 mile limit
E 83.5 N F N N PCR ENTEROCOCCUS IRC 5 L
LA110701_002
Constance, Long(Dung), Little Florida, Martin, and Gulf
Breeze Beaches-Located within subsegment
LA110701_00. This unit is added for swimming advisory
tracking purposes only and is not a subsegment as
defined by LAC 33:IX.1123.A. et seq.
C 6.3 N PCR ENTEROCOCCUS IRC 5 L
LA120102_00 Bayou Poydras-From headwaters to Bayou Choctaw R 10.6 N F N FWP DISSOLVED OXYGEN IRC 4a
LA120102_00 Bayou Poydras-From headwaters to Bayou Choctaw R 10.6 N F N FWP SULFATE IRC 4a
LA120102_00 Bayou Poydras-From headwaters to Bayou Choctaw R 10.6 N F N FWP TURBIDITY IRC 4a
LA120102_00 Bayou Poydras-From headwaters to Bayou Choctaw R 10.6 N F N PCR FECAL COLIFORM IRC 4a
LA120103_00 Bayou Choctaw-From Bayou Poydras to ICWW R 13.1 F F N FWP DISSOLVED OXYGEN IRC 4a
LA120104_00 Bayou Grosse Tete-From headwaters to ICWW R 37.3 F F N FWP DISSOLVED OXYGEN IRC 4a
Page 56 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA120104_00 Bayou Grosse Tete-From headwaters to ICWW R 37.3 F F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA120104_00 Bayou Grosse Tete-From headwaters to ICWW R 37.3 F F N FWP PHOSPHORUS, TOTAL IRC 4a
LA120105_00 Chamberlin Canal-From Chamberlin to Bayou Choctaw R 7.9 N F N FWP DISSOLVED OXYGEN IRC 4a
LA120105_00 Chamberlin Canal-From Chamberlin to Bayou Choctaw R 7.9 N F N FWP TURBIDITY IRC 4a
LA120105_00 Chamberlin Canal-From Chamberlin to Bayou Choctaw R 7.9 N F N PCR FECAL COLIFORM IRC 4a
LA120106_00 Bayou Plaquemine-From Plaquemine Lock to ICWW R 7.3 F F N FWP DISSOLVED OXYGEN IRC 4a
LA120107_00
Upper Grand River and Lower Flat River-From
headwaters to ICWW
R 12.4 F F N FWP DISSOLVED OXYGEN IRC 4a
LA120108_00 False River L 3,133.1 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA120108_00 False River L 3,133.1 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120109_00
Intracoastal Waterway-From Port Allen Locks to Bayou
Sorrel Locks
R 28.2 F F F F
LA120110_00 Bayou Cholpe-From headwaters to Bayou Choctaw R 8.2 F F N DOCM Full FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120111_00
Bayou Maringouin-From headwaters to East Atchafalaya
Basin Levee
R 20.5 N F N FWP DISSOLVED OXYGEN IRC 4a
LA120111_00
Bayou Maringouin-From headwaters to East Atchafalaya
Basin Levee
R 20.5 N F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 4a
LA120111_00
Bayou Maringouin-From headwaters to East Atchafalaya
Basin Levee
R 20.5 N F N PCR FECAL COLIFORM IRC 4a
LA120201_00
Lower Grand River and Belle River-From Bayou Sorrel
Lock to Lake Palourde; includes Bay Natchez, Lake
Natchez, Bayou Milhomme, and Bayou Long
R 48.9 F F N FWP DISSOLVED OXYGEN IRC 4a
LA120202_00 Bayou Black-From ICWW to Houma R 23.5 F F N N DWS COLOR IRC 5 L
LA120202_00 Bayou Black-From ICWW to Houma R 23.5 F F N N FWP DISSOLVED OXYGEN IRC 4a
LA120202_00 Bayou Black-From ICWW to Houma R 23.5 F F N N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA120202_00 Bayou Black-From ICWW to Houma R 23.5 F F N N FWP PHOSPHORUS, TOTAL IRC 4a
LA120203_00 Bayou Boeuf-From Lake Palourde to ICWW R 3.7 F F N F FWP PH, HIGH IRC 5 L
LA120204_00 Lake Verret and Grassy Lake L 16,311.3 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120204_00 Lake Verret and Grassy Lake L 16,311.3 F F N FWP TURBIDITY IRC 5RC L
LA120205_00 Lake Palourde L 10,769.8 F F N F FWP PH, HIGH IRC 4a
LA120205_00 Lake Palourde L 10,769.8 F F N F FWP TURBIDITY IRC 5 L
LA120206_00
Grand Bayou and Little Grand Bayou-From headwaters
to Lake Verret
R 17.8 F F N FWP TURBIDITY IRC 4a
Page 57 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA120207_00
Thibodaux Swamp-Forested wetland located in
Lafourche and Terrebonne Parishes, 6.2 miles southwest
of Thibodaux, east of Terrebonne-Lafourche Drainage
Canal, and north of Southern Pacific Railroad; also called
Pointe Au Chene Swamp
W 650.3 X F
LA120208_00
Bayou Ramos Swamp Wetland-Forested wetland
located 1.25 miles north of Amelia in St. Mary Parish,
south of Lake Palourde
W 116.1 X F
LA120301_00 Bayou Terrebonne-From Thibodaux to ICWW in Houma R 14.9 F F N FWP DISSOLVED OXYGEN IRC 4a
LA120301_00 Bayou Terrebonne-From Thibodaux to ICWW in Houma R 14.9 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120302_00 Bayou Folse-From headwaters to Company Canal R 12.2 F F N N F DWS COLOR IRC 5RC L
LA120302_00 Bayou Folse-From headwaters to Company Canal R 12.2 F F N N F FWP DISSOLVED OXYGEN IRC 4a
LA120302_00 Bayou Folse-From headwaters to Company Canal R 12.2 F F N N F FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA120302_00 Bayou Folse-From headwaters to Company Canal R 12.2 F F N N F FWP PHOSPHORUS, TOTAL IRC 4a
LA120303_00 Bayou L'eau Bleu-From Company Canal to ICWW R 9.2 F F N FWP DISSOLVED OXYGEN IRC 4a
LA120304_00 Intracoastal Waterway-From Houma to Larose R 23.7 F F N F F FWP DISSOLVED OXYGEN IRC 4a
LA120401_00 Bayou Penchant-From Bayou Chene to Lake Penchant R 29.2 F F N N FWP TURBIDITY IRC 5 L
LA120401_00 Bayou Penchant-From Bayou Chene to Lake Penchant R 29.2 F F N N ONR TURBIDITY IRC 5 L
LA120402_00 Bayou Chene-From ICWW to Bayou Penchant R 6.5 F F F
LA120403_00
Intracoastal Waterway-From Bayou Boeuf Locks to
Bayou Black in Houma; includes segments of Bayous
Boeuf, Black, and Chene
R 34.7 F F F F F
LA120404_00 Lake Penchant L 882.5 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120405_00 Lake Hache and Lake Theriot L 1,685.4 F F N FWP DISSOLVED OXYGEN IRC 4a
LA120405_00 Lake Hache and Lake Theriot L 1,685.4 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120405_00 Lake Hache and Lake Theriot L 1,685.4 F F N FWP TURBIDITY IRC 5 L
LA120406_00 Lake de Cade E 7.7 N F F N OYS FECAL COLIFORM IRC 5 M
LA120406_00 Lake de Cade E 7.7 N F F N PCR ENTEROCOCCUS IRC 5 L
LA120501_00 Bayou Grand Caillou-From Houma to Bayou Pelton R 8.3 F F N FWP DISSOLVED OXYGEN IRC 4a
LA120501_00 Bayou Grand Caillou-From Houma to Bayou Pelton R 8.3 F F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA120501_00 Bayou Grand Caillou-From Houma to Bayou Pelton R 8.3 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120501_00 Bayou Grand Caillou-From Houma to Bayou Pelton R 8.3 F F N FWP PHOSPHORUS, TOTAL IRC 4a
Page 58 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA120502_00
Bayou Grand Caillou-From Bayou Pelton to Houma
Navigation Canal (Estuarine)
R 10.8 N F N N FWP DISSOLVED OXYGEN IRC 5 L
LA120502_00
Bayou Grand Caillou-From Bayou Pelton to Houma
Navigation Canal (Estuarine)
R 10.8 N F N N OYS FECAL COLIFORM IRC 4a
LA120502_00
Bayou Grand Caillou-From Bayou Pelton to Houma
Navigation Canal (Estuarine)
R 10.8 N F N N PCR ENTEROCOCCUS IRC 5 L
LA120503_00
Bayou Petit Caillou-From Bayou Terrebonne to La.
Highway 24 bridge
R 5.2 F F N N FWP DISSOLVED OXYGEN IRC 4a
LA120503_00
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
LA120503_00
Bayou Petit Caillou-From Bayou Terrebonne to La.
Highway 24 bridge
R 5.2 F F N N OYS FECAL COLIFORM IRC 4a
LA120504_00
Bayou Petit Caillou-From La. Highway 24 bridge to
Boudreaux Canal (Estuarine)
R 11.2 N F N N FWP DISSOLVED OXYGEN IRC 4a
LA120504_00
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
LA120504_00
Bayou Petit Caillou-From La. Highway 24 bridge to
Boudreaux Canal (Estuarine)
R 11.2 N F N N OYS FECAL COLIFORM IRC 4a
LA120504_00
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)
IRC 4a
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
LA120506_00
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
LA120506_00
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
LA120506_00
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
LA120507_00
Bayou Chauvin-From ICWW to Lake Boudreaux
(Estuarine)
R 12.7 N F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120507_00
Bayou Chauvin-From ICWW to Lake Boudreaux
(Estuarine)
R 12.7 N F N PCR ENTEROCOCCUS IRC 5 L
LA120508_00
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
Page 59 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA120508_00
Houma Navigation Canal-From Bayou Pelton to 1 mile
south of Bayou Grand Caillou (Estuarine)
R 12.0 N F F N PCR ENTEROCOCCUS IRC 5 L
LA120509_00 Houma Navigation Canal-From Houma to Bayou Pelton R 5.1 N F F F PCR ENTEROCOCCUS IRC 5 L
LA120601_00
Bayou Terrebonne-From Houma to Company Canal
(Estuarine)
R 7.4 N F N FWP DISSOLVED OXYGEN IRC 5 L
LA120601_00
Bayou Terrebonne-From Houma to Company Canal
(Estuarine)
R 7.4 N F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120601_00
Bayou Terrebonne-From Houma to Company Canal
(Estuarine)
R 7.4 N F N PCR ENTEROCOCCUS IRC 5 L
LA120602_00
Bayou Terrebonne-From Company Canal to Humble
Canal (Estuarine)
R 9.5 N F N N FWP DISSOLVED OXYGEN IRC 5 L
LA120602_00
Bayou Terrebonne-From Company Canal to Humble
Canal (Estuarine)
R 9.5 N F N N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120602_00
Bayou Terrebonne-From Company Canal to Humble
Canal (Estuarine)
R 9.5 N F N N OYS FECAL COLIFORM IRC 4a
LA120602_00
Bayou Terrebonne-From Company Canal to Humble
Canal (Estuarine)
R 9.5 N F N N PCR ENTEROCOCCUS IRC 5 L
LA120603_00 Company Canal-From ICWW to Bayou Terrebonne R 0.8 F F N FWP DISSOLVED OXYGEN IRC 5 L
LA120604_00 Bayou Blue-From Company Canal to Grand Bayou Canal R 12.8 F F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120605_00
Bayou Pointe Au Chien-From headwaters to St. Louis
Canal
R 7.8 N F N FWP CHLORIDE IRC 5 L
LA120605_00
Bayou Pointe Au Chien-From headwaters to St. Louis
Canal
R 7.8 N F N FWP DISSOLVED OXYGEN IRC 4a
LA120605_00
Bayou Pointe Au Chien-From headwaters to St. Louis
Canal
R 7.8 N F N FWP
NITRATE/NITRITE (NITRITE + NITRATE AS
N)
IRC 4a
LA120605_00
Bayou Pointe Au Chien-From headwaters to St. Louis
Canal
R 7.8 N F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120605_00
Bayou Pointe Au Chien-From headwaters to St. Louis
Canal
R 7.8 N F N FWP PHOSPHORUS, TOTAL IRC 4a
LA120605_00
Bayou Pointe Au Chien-From headwaters to St. Louis
Canal
R 7.8 N F N FWP SULFATE IRC 5 L
LA120605_00
Bayou Pointe Au Chien-From headwaters to St. Louis
Canal
R 7.8 N F N FWP TOTAL DISSOLVED SOLIDS (TDS) IRC 5 L
LA120605_00
Bayou Pointe Au Chien-From headwaters to St. Louis
Canal
R 7.8 N F N PCR ENTEROCOCCUS IRC 5 L
LA120606_00
Bayou Blue-From Grand Bayou Canal to Bully Camp
Canal (Estuarine)
R 5.9 N F N FWP DISSOLVED OXYGEN IRC 4a
Page 60 of 61
Public Notice of 2022 Integrated Report of Water Quality in Louisiana
January 19, 2022
PCR
SCR
FWP
DWS
ONR
OYS
AGR
LAL
Impaired Use
for Suspected
Cause
Suspected Causes of Impairment
IR Category
for Suspected
Causes
TMDL
Priority
Subsegment Number
Subsegment Description
Water
Body
Type
Size
Designated Water Body Uses
Assessment
Comment
LA120606_00
Bayou Blue-From Grand Bayou Canal to Bully Camp
Canal (Estuarine)
R 5.9 N F N FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120606_00
Bayou Blue-From Grand Bayou Canal to Bully Camp
Canal (Estuarine)
R 5.9 N F N PCR ENTEROCOCCUS IRC 5 L
LA120701_00
Bayou Grand Caillou-From Houma Navigation Canal to
Caillou Bay (Estuarine)
R 20.8 F F F F
LA120702_00
Bayou Petit Caillou-From Boudreaux Canal to Houma
Navigation Canal (Estuarine)
R 11.2 N F F N OYS FECAL COLIFORM IRC 5 M
LA120702_00
Bayou Petit Caillou-From Boudreaux Canal to Houma
Navigation Canal (Estuarine)
R 11.2 N F F N PCR ENTEROCOCCUS IRC 5 L
LA120703_00
Bayou Du Large-From 1/2 mile north of St. Andrews
Mission to Caillou Bay (Estuarine)
R 21.5 F F N F FWP NON-NATIVE AQUATIC PLANTS IRC 4b
LA120704_00
Bayou Terrebonne-From Humble Canal to Lake Barre
(Estuarine)
R 14.8 N F F N OYS FECAL COLIFORM IRC 5 M
LA120704_00
Bayou Terrebonne-From Humble Canal to Lake Barre
(Estuarine)
R 14.8 N F F N PCR ENTEROCOCCUS IRC 5 L
LA120705_00
Houma Navigation Canal-From 1 mile south of Bayou
Grand Caillou to Terrebonne Bay
R 7.6 N F F N OYS FECAL COLIFORM IRC 5 M
LA120705_00
Houma Navigation Canal-From 1 mile south of Bayou
Grand Caillou to Terrebonne Bay
R 7.6 N F F N PCR ENTEROCOCCUS IRC 5 L
LA120706_00
Bayou Blue-From Bully Camp Canal to Lake Raccourci
(Estuarine)
R 25.6 F F F N OYS FECAL COLIFORM IRC 5 M
LA120707_00 Lake Boudreaux E 10.1 F F F N OYS FECAL COLIFORM IRC 4a
LA120708_00 Lost Lake and Four League Bay E 42.5 N F F N OYS FECAL COLIFORM IRC 4a
LA120708_00 Lost Lake and Four League Bay E 42.5 N F F N PCR ENTEROCOCCUS IRC 5 L
LA120709_00
Bayou Petit Caillou-From Houma Navigation Canal to
Terrebonne Bay
R 1.4 N F F F PCR ENTEROCOCCUS IRC 5 L
LA120801_00 Caillou Bay E 44.0 N F F F PCR ENTEROCOCCUS IRC 5 L
LA120802_00 Terrebonne Bay E 96.6 N F F F PCR ENTEROCOCCUS IRC 5 L
LA120803_00 Timbalier Bay E 164.6 N F F F PCR ENTEROCOCCUS IRC 5 L
LA120804_00 Lake Barre E 64.3 N F F F PCR ENTEROCOCCUS IRC 5 L
LA120805_00 Lake Pelto E 53.7 N F F F PCR ENTEROCOCCUS IRC 5 L
LA120806_00
Terrebonne Basin Coastal Bays and Gulf Waters to the
State 3 mile limit
E 269.0 N F N F FWP DISSOLVED OXYGEN IRC 5 L
LA120806_00
Terrebonne Basin Coastal Bays and Gulf Waters to the
State 3 mile limit
E 269.0 N F N F FWP
MERCURY - FISH CONSUMPTION
ADVISORY
IRC 4a
LA120806_00
Terrebonne Basin Coastal Bays and Gulf Waters to the
State 3 mile limit
E 269.0 N F N F PCR ENTEROCOCCUS IRC 5 L
Page 61 of 61
