Madera Water Quality Report
4 cities ranked · Average grade: C · California
Avg Score
60.4
Cities Ranked
4
Health Violations
4
PFAS Detected
2
60.4
County avg score
4
Cities ranked
25%
A or B grade
50%
D or F grade
4
Health violations
2
PFAS detected
Grade Distribution
How Madera cities scored
A
1
25%
Excellent
B
0
0%
Good
C
1
25%
Fair
D
2
50%
Poor
F
0
0%
Failing
Comparison
County vs California average
▼ 16.1 pts below state average
City Map
Water quality across Madera
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Madera
Best cities
Worst cities
County context
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Madera
Industrial polluters nearby
Facilities reporting the most surface-water releases in Madera, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
CERTAINTEED LLC CHOWCHILLA, CA93610 | — | — |
OLDCASTLE PRECAST INC CHOWCHILLA, CA93610 | — | — |
ARDAGH GLASS INC MADERA, CA93637 | — | — |
NUTRA BLEND LLC MADERA, CA93637 | — | — |
FLORESTONE LLC MADERA, CA93637 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 4 cities in Madera
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Chowchilla | A- | 86.2 | 19K | 39 | Health PFAS Unresolved | |
| 2 | Coarsegold | C- | 60 | 6K | 56 | Health PFAS Unresolved | |
| 3 | Madera | D | 47.9 | 94K | 881 | Health Unresolved | |
| 4 | Oakhurst | D | 47.5 | 2K | 383 | Health Unresolved |