St. Clair Water Quality Report
17 cities ranked · Average grade: B+ · Michigan
Avg Score
84.7
Cities Ranked
17
Health Violations
7
PFAS Detected
0
84.7
County avg score
17
Cities ranked
94%
A or B grade
0%
D or F grade
7
Health violations
0
PFAS detected
Grade Distribution
How St. Clair cities scored
A
9
53%
Excellent
B
7
41%
Good
C
1
6%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Michigan average
▲ 3.7 pts above state average
City Map
Water quality across St. Clair
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in St. Clair
Best cities
Worst cities
County context
88.8%
of residents on fluoridated water (CDC, 2020)
855
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in St. Clair
Industrial polluters nearby
Facilities reporting the most surface-water releases in St. Clair, 2023.
Total reported releases to surface water: 855 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
DTE ELECTRIC CO-BELLE RIVER POWER PLANT CHINA TOWNSHIP, MI48054 | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 855 |
SUNSATION PRODUCTS INC CLAY TOWNSHIP, MI48001 | — | — |
DTE ELECTRIC CO - GREENWOOD ENERGY CENTER AVOCA, MI48006 | — | — |
MUELLER IMPACTS CO MARYSVILLE, MI48040 | — | — |
INTERTAPE POLYMER GROUP MARYSVILLE, MI48040 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 17 cities in St. Clair
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Algonac | A+ | 95.5 | 14K | 39 | Unresolved | |
| 2 | East China | A | 94.8 | 6K | 0 | Zero violations | |
| 3 | Clyde | A | 91.9 | 2K | 2 | Unresolved | |
| 4 | Ira | A | 91.4 | 7K | 2 | Unresolved | |
| 5 | Fort Gratiot | A | 91.3 | 12K | 7 | Health Unresolved | |
| 6 | Memphis | A | 91.2 | 1K | 5 | Unresolved | |
| 7 | Cottrellville | A- | 87.4 | 3K | 4 | Unresolved | |
| 8 | O Fallon | A- | 86.6 | 580 | 2 | Unresolved | |
| 9 | Port Huron | A- | 85.7 | 44K | 10 | Unresolved | |
| 10 | Marine City | B+ | 84.7 | 5K | 6 | Health Unresolved | |
| 11 | Burtchville Township | B+ | 81.2 | 3K | 8 | Unresolved | |
| 12 | Capac | B+ | 81.1 | 2K | 46 | Health Unresolved | |
| 13 | Kimball | B+ | 80.5 | 6K | 27 | Unresolved | |
| 14 | St. Clair | B+ | 80.3 | 9K | 15 | Health Unresolved | |
| 15 | Marysville | B | 79 | 10K | 80 | Health Unresolved | |
| 16 | Yale | B- | 73.3 | 2K | 44 | Health Unresolved | |
| 17 | Belleville | C | 63.7 | 831 | 19 | Health Unresolved |