St. Charles Parish Water Quality Report
1 cities ranked · Average grade: A- · Louisiana
Avg Score
88.9
Cities Ranked
1
Health Violations
1
PFAS Detected
1
88.9
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 St. Charles 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
▲ 23.4 pts above state average
City Map
Water quality across St. Charles Parish
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in St. Charles Parish
Best cities
Worst cities
County context
100.0%
of residents on fluoridated water (CDC, 2020)
347,938
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in St. Charles Parish
Industrial polluters nearby
Facilities reporting the most surface-water releases in St. Charles Parish, 2023.
Total reported releases to surface water: 347,938 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
VALERO REFINING - NEW ORLEANS LLC NORCO, LA70079 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 135,551 |
BAYER CROPSCIENCE LP LULING, LA70070 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 111,800 |
ST CHARLES OPERATIONS (TAFT/STAR) UNION CARBIDE CORP HAHNVILLE, LA70057 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 98,204 |
SHELL NORCO CHEMICAL PLANT NORCO, LA70079 | Ammonia | 1,248 |
BUNGE CHEVRON AG RENEWABLES LLC DESTREHAN, LA70047 | n-Hexane | 467 |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 1 cities in St. Charles Parish
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Luling | A- | 88.9 | 53K | 3 | Health Unresolved |