Delaware Water Quality Report
2 cities ranked · Average grade: B+ · Ohio
Avg Score
81.7
Cities Ranked
2
Health Violations
2
PFAS Detected
1
81.7
County avg score
2
Cities ranked
100%
A or B grade
0%
D or F grade
2
Health violations
1
PFAS detected
Grade Distribution
How Delaware 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 Ohio average
▲ 4.4 pts above state average
City Map
Water quality across Delaware
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Delaware
Best cities
Worst cities
County context
61
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Delaware
Industrial polluters nearby
Facilities reporting the most surface-water releases in Delaware, 2023.
Total reported releases to surface water: 61 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
PPG INDUSTRIES OHIO INC - DELAWARE DELAWARE, OH43015 | Zinc compounds | 61 |
LIBERTY CASTING CO LLC. DELAWARE, OH43015 | — | — |
LUVATA OHIO INC FPBU DELAWARE, OH43015 | — | — |
HENKEL US OPERATIONS CORP DELAWARE, OH43015 | — | — |
SAM DONG OHIO INC DELAWARE, OH43015 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings