Defiance Water Quality Report
4 cities ranked · Average grade: C+ · Ohio
Avg Score
68.4
Cities Ranked
4
Health Violations
3
PFAS Detected
2
68.4
County avg score
4
Cities ranked
75%
A or B grade
25%
D or F grade
3
Health violations
2
PFAS detected
Grade Distribution
How Defiance cities scored
A
0
0%
Excellent
B
3
75%
Good
C
0
0%
Fair
D
0
0%
Poor
F
1
25%
Failing
Comparison
County vs Ohio average
▼ 8.9 pts below state average
City Map
Water quality across Defiance
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Defiance
Best cities
Worst cities
County context
22
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Defiance
Industrial polluters nearby
Facilities reporting the most surface-water releases in Defiance, 2023.
Total reported releases to surface water: 22 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
GENERAL MOTORS LLC GLOBAL PROPULSION SYSTEMS -DEFIANCE DEFIANCE, OH43512 | Copper | 22 |
GT TECHNOLOGIES DEFIANCE PLANT 1 DEFIANCE, OH43512 | — | — |
GT TECHNOLOGIES DEFIANCE PLANT 2 DEFIANCE, OH43512 | — | — |
JOHNS MANVILLE CORP PLANT 8 DEFIANCE, OH43512 | — | — |
JOHNS MANVILLE PLANT 2 DEFIANCE, OH43512 | — | — |
+ 3 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 4 cities in Defiance
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Sherwood | B+ | 83.2 | 854 | 14 | Unresolved | |
| 2 | Hicksville | B | 76.8 | 4K | 26 | Health Unresolved | |
| 3 | Ney | B- | 71.7 | 854 | 7 | Health Unresolved | |
| 4 | Defiance | F | 42 | 19K | 254 | Health Unresolved |