Terrebonne Parish Water Quality Report
1 cities ranked · Average grade: B+ · Louisiana
Avg Score
82.4
Cities Ranked
1
Health Violations
1
PFAS Detected
1
82.4
County avg score
1
Cities ranked
100%
A or B grade
0%
D or F grade
1
Health violations
1
PFAS detected
Grade Distribution
How Terrebonne Parish cities scored
A
0
0%
Excellent
B
1
100%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Louisiana average
▲ 16.9 pts above state average
City Map
Water quality across Terrebonne Parish
Each dot is a city, colored by grade. Click any city to view its full report.
County context
1
Superfund site in Terrebonne Parish
100.0%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Terrebonne Parish
Industrial polluters nearby
Facilities reporting the most surface-water releases in Terrebonne Parish, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
GULF ISLAND FABRICATION LLC HOUMA, LA70363 | — | — |
OIL STATES INDUSTRIES - HOUMA HOUMA, LA70363 | — | — |
BOLLINGER HOUMA SHIPYARDS LLC HOUMA, LA70363 | — | — |
LASHIP LLC HOUMA, LA70363 | — | — |
NATIONAL OILWELL VARCO LP HOUMA, LA70360 | — | — |
+ 3 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Terrebonne Parish
Superfund sites nearby
Federally tracked hazardous-waste sites within Terrebonne Parish on the EPA National Priorities List.
- DELTA SHIPYARD
Source: EPA Superfund National Priorities List
Full Rankings
All 1 cities in Terrebonne Parish
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Houma | B+ | 82.4 | 128K | 19 | Health Unresolved |