St. Martin Parish Water Quality Report
6 cities ranked · Average grade: C- · Louisiana
Avg Score
58.6
Cities Ranked
6
Health Violations
6
PFAS Detected
6
58.6
County avg score
6
Cities ranked
33%
A or B grade
33%
D or F grade
6
Health violations
6
PFAS detected
Grade Distribution
How St. Martin Parish cities scored
A
0
0%
Excellent
B
2
33%
Good
C
2
33%
Fair
D
1
17%
Poor
F
1
17%
Failing
Comparison
County vs Louisiana average
▼ 6.9 pts below state average
City Map
Water quality across St. Martin Parish
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in St. Martin Parish
County context
11.1%
of residents on fluoridated water (CDC, 2020)
263,965
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in St. Martin Parish
Industrial polluters nearby
Facilities reporting the most surface-water releases in St. Martin Parish, 2023.
Total reported releases to surface water: 263,965 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
ALON REFINING KROTZ SPRINGS INC KROTZ SPRINGS, LA70750 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 263,965 |
LEMOYEN LLC - LEMOYEN PLANT MORROW, LA71356 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 6 cities in St. Martin Parish
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Loreauville | B- | 72.5 | 10K | 22 | Health Unresolved | |
| 2 | Cecilia | B- | 71.5 | 12K | 14 | Health Unresolved | |
| 3 | Arnaudville | C | 61.2 | 9K | 80 | Health Unresolved | |
| 4 | Parks | C | 60.9 | 13K | 36 | Health PFAS Unresolved | |
| 5 | Breaux Bridge | D | 45.5 | 14K | 60 | Health Unresolved | |
| 6 | St. Martinville | F | 40.2 | 14K | 138 | Health Unresolved |