St. Bernard Parish Water Quality Report
1 cities ranked · Average grade: A- · Louisiana
Avg Score
87.7
Cities Ranked
1
Health Violations
1
PFAS Detected
0
87.7
County avg score
1
Cities ranked
100%
A or B grade
0%
D or F grade
1
Health violations
0
PFAS detected
Grade Distribution
How St. Bernard Parish cities scored
A
1
100%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Louisiana average
▲ 22.2 pts above state average
City Map
Water quality across St. Bernard Parish
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in St. Bernard Parish
Best cities
Worst cities
County context
0.0%
of residents on fluoridated water (CDC, 2020)
145,836
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in St. Bernard Parish
Industrial polluters nearby
Facilities reporting the most surface-water releases in St. Bernard Parish, 2023.
Total reported releases to surface water: 145,836 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
CHALMETTE REFINING LLC CHALMETTE, LA70043 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 119,297 |
VALERO REFINING - MERAUX LLC MERAUX REFINERY MERAUX, LA70075 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 26,539 |
RAIN CII CARBON LLC CHALMETTE, LA70043 | — | — |
ENERGY TRANSFER GEISMAR OLEFINS LLC - CHALMETTE GAS PROCESSI CHALMETTE, LA70043 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 1 cities in St. Bernard Parish
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Chalmette | A- | 87.7 | 45K | 47 | Health Unresolved |