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List of Impaired Waters (Louisiana)

Barataria-Terrebonne Bays, West Central Louisiana Coast 8090302
Cycle 2006

ID
Num
WBID Waterbody Name State Basin Name # of
Impairments
1 LA-010901 Atchafalaya Bay & Delta & Gulf Waters Atchafalaya 1
2 LA-120201 Lower Grand River & Belle River Barataria 2
3 LA-120204 Lake Verret & Grassy Lake Terrebonne River 3
4 LA-120205 Lake Palourde Terrebonne River 1
5 LA-120206 Grand Bayou & Little Grand Bayou - Origin to Lake Verret Terrebonne River 3
6 LA-120301 Bayou Terrebonne - Thibodeaux to Segments 1203 & 1206 Terrebonne River 4
7 LA-120302 Company Canal - From Bayou Lafourche to ICWW Terrebonne River 3
8 LA-120303 Lake Long Terrebonne River 3
9 LA-120304 Intracoastal Waterway Terrebonne River 2
10 LA-120401 Bayou Penchant - Bayou Chene to Lake Penchant Terrebonne River 2
11 LA-120402 Bayou Chene - From Intracoastal Waterway to Bayou Penchant Terrebonne River 1
12 LA-120403 Intracoastal Waterway - Bayou Boeuf Locks to Segments 1204 & 1203 Terrebonne River 1
13 LA-120404 Lake Penchant Terrebonne River 1
14 LA-120405 Lake Hache, Lake Theriot Terrebonne River 3
15 LA-120502 Bayou Grand Caillou - Bayou Pelton to Segments 1205 & 1207 Terrebonne River 1
16 LA-120503 Bayou Petit Caillou - Bayou Terrebonne-Klondyke Rd. Bridge Terrebonne River 1
17 LA-120504 Bayou Petit Caillou - Klondyke Rd. Bridge - Segments 1205 & 1207 Terrebonne River 4
18 LA-120505 Bayou Du Large From Houma to Marmande Canal Terrebonne River 6
19 LA-120506 Bayou Du Large - Marmande Canal to Segments 1205 & 1207 Terrebonne River 1
20 LA-120507 Bayou Chauvin - Ashland Canal to Lake Boudreaux Terrebonne River 4
21 LA-120508 Houma Navigation Canal Terrebonne River 1
22 LA-120602 Bayou Terrebonne - Company Canal at Bourg to Humble Canal Terrebonne River 1
23 LA-120604 Bayou Blue Terrebonne River 2
24 LA-120605 Bayou Pointe au Chien - Source to Segments 1206 & 1207 Terrebonne River 7
25 LA-120606 Bayou Blue - Grand Bayou Canal to Segments 1206 & 1207 Terrebonne River 4
26 LA-120702 Bayou Petite Caillou Terrebonne River 1
27 LA-120703 Bayou Du Large - Segments 1206 & 1207 to Caillou Bay Terrebonne River 1
28 LA-120707 Lake Boudreaux Terrebonne River 2
29 LA-120708 Lost Lake, Four League Bay Terrebonne River 3
30 LA-120709 Bayou Petit Caillou Terrebonne River 1
Total # of Impairments 70

Delistings for Barataria-Terrebonne Bays

Delistings for West Central Louisiana Coast 8090302

ID
Num
WBID Waterbody
Name
Status Delisted Basis for Delisting
1 LA-010901 Atchafalaya Bay & Delta & Gulf Waters Impaired Water Segment Mercury; Turbidity Mercury - TMDL Approved; Turbidity - New data shows attainment
2 LA-120201 Lower Grand River & Belle River Impaired Water Segment Nutrients, Organic Enrichment/Low DO TMDL Approved
3 LA-120204 Lake Verret & Grassy Lake Impaired Water Segment    
4 LA-120205 Lake Palourde Impaired Water Segment    
5 LA-120206 Grand Bayou & Little Grand Bayou - Origin to Lake Verret Impaired Water Segment    
6 LA-120301 Bayou Terrebonne - Thibodeaux to Segments 1203 & 1206 Impaired Water Segment    
7 LA-120302 Company Canal - From Bayou Lafourche to ICWW Impaired Water Segment    
8 LA-120303 Lake Long Impaired Water Segment    
9 LA-120304 Intracoastal Waterway Impaired Water Segment    
10 LA-120401 Bayou Penchant - Bayou Chene to Lake Penchant Impaired Water Segment Oil & Grease  
11 LA-120402 Bayou Chene - From Intracoastal Waterway to Bayou Penchant Impaired Water Segment    
12 LA-120403 Intracoastal Waterway - Bayou Boeuf Locks to Segments 1204 & 1203 Impaired Water Segment pH New data shows attainment
13 LA-120404 Lake Penchant Impaired Water Segment    
14 LA-120405 Lake Hache, Lake Theriot Impaired Water Segment    
15 LA-120502 Bayou Grand Caillou - Bayou Pelton to Segments 1205 & 1207 Impaired Water Segment    
16 LA-120503 Bayou Petit Caillou - Bayou Terrebonne-Klondyke Rd. Bridge Impaired Water Segment Nutrients, Organic Enrichment/Low DO TMDL Approved
17 LA-120504 Bayou Petit Caillou - Klondyke Rd. Bridge - Segments 1205 & 1207 Impaired Water Segment Taste and Odor New data shows attainment
18 LA-120505 Bayou Du Large From Houma to Marmande Canal Impaired Water Segment    
19 LA-120506 Bayou Du Large - Marmande Canal to Segments 1205 & 1207 Impaired Water Segment    
20 LA-120507 Bayou Chauvin - Ashland Canal to Lake Boudreaux Impaired Water Segment    
21 LA-120508 Houma Navigation Canal Impaired Water Segment    
22 LA-120602 Bayou Terrebonne - Company Canal at Bourg to Humble Canal Impaired Water Segment    
23 LA-120604 Bayou Blue Impaired Water Segment    
24 LA-120605 Bayou Pointe au Chien - Source to Segments 1206 & 1207 Impaired Water Segment Nutrients, Nitrite/Nitrate TMDL Approved
25 LA-120606 Bayou Blue - Grand Bayou Canal to Segments 1206 & 1207 Impaired Water Segment    
26 LA-120702 Bayou Petite Caillou Impaired Water Segment    
27 LA-120703 Bayou Du Large - Segments 1206 & 1207 to Caillou Bay Impaired Water Segment    
28 LA-120707 Lake Boudreaux Impaired Water Segment Organic enrichment/Low Dissolved Oxygen, Nutrients Based on contradictory results for dissolved oxygen grab sample data collected as part of the LDEQ's routine monitoring program and dissolved oxygen continuous monitoring data.
29 LA-120708 Lost Lake, Four League Bay Impaired Water Segment    
30 LA-120709 Bayou Petit Caillou Impaired Water Segment    
31 LA-021102 Barataria Basin Coastal Bays & Gulf Waters TMDL Completed Mercury TMDL Approved
32 LA-120501 Bayou Grand Caillou - Houma to Bayou Pelton TMDL Completed Nutrients, Organic Enrichment/Low DO TMDL Approved
33 LA-120806 Terrebonne Basin Coastal Bays & Gulf Waters TMDL Completed Mercury TMDL Approved
34 LA-020403 Bayou Lafourche - Yankee Canal & Flood Gate to Gulf Restored Total & Fecal Coliforms New data shows attainment
35 LA-120406 Lake de Cade Restored Dissolved Oxygen, Nutrients Dissolved Oxygen - New data shows attainment; Nutrients - New DO assessment fully supported; therefore, nutrients not causing an impairment.
36 LA-120701 Bayou Grand Caillou Restored Total and Fecal Coliforms New data shows attainment

In Summary:

Impaired Water Segments 30
TMDL Completed 3
Restored 3

 

Gulf of Mexico Program Office
Mail Code: EPA/GMPO
Stennis Space Center, MS 39529-6000
228-688-3726
FAX: 228-688-2709


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