St. Louis Water Quality Report
2 cities ranked · Average grade: A- · Missouri
Avg Score
85.4
Cities Ranked
2
Health Violations
1
PFAS Detected
2
85.4
County avg score
2
Cities ranked
100%
A or B grade
0%
D or F grade
1
Health violations
2
PFAS detected
Grade Distribution
How St. Louis cities scored
A
1
50%
Excellent
B
1
50%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Missouri average
▲ 6.7 pts above state average
City Map
Water quality across St. Louis
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in St. Louis
Best cities
Worst cities
County context
4
Superfund sites in St. Louis
0.0%
of residents on fluoridated water (CDC, 2020)
1
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in St. Louis
Industrial polluters nearby
Facilities reporting the most surface-water releases in St. Louis, 2023.
Total reported releases to surface water: 1 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
BUCKMAN LABORATORIES INC. CADET, MO63630 | Bis(2-chloroethyl) ether | 1 |
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in St. Louis
Superfund sites nearby
Federally tracked hazardous-waste sites within St. Louis on the EPA National Priorities List.
- WASHINGTON COUNTY LEAD DISTRICT FURNACE CREEK
- WASHINGTON COUNTY LEAD DISTRICT OLD MINES
- WASHINGTON COUNTY LEAD DISTRICT POTOSI
- WASHINGTON COUNTY LEAD DISTRICT RICHWOODS
Source: EPA Superfund National Priorities List
Full Rankings
All 2 cities in St. Louis
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Kirkwood | A+ | 96 | 28K | 0 | Zero violations | |
| 2 | Chesterfield | B- | 74.8 | 1.1M | 72 | Health Unresolved |