DEFIANCE CITY Water Quality Report
Population
16,494
people served
Water Source
🌊 Surface
rivers, lakes, reservoirs
National Rank
—
of 49,184 US systems
5-Year Record
⚠️ 12
violations recorded
F
Unsafe
Safety Grade
12 violations in the past 5 years, including 27 health-based
System Details
- PWSID
- OH2000111
- Population Served
- 16,494
- Water Source
- Surface Water
- Owner
- Local Government
- State
- Ohio
- EPA Region
- 5
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7000 | ⚠ Monitoring/Reporting | 7 |
| Contaminant 5000 | ✕ Health-Based | 2 |
| Total Trihalomethanes (TTHMs) | ✕ Health-Based | 26 |
| Contaminant 7500 | ⚠ Monitoring/Reporting | 1 |
Violation History
2022
8
2021
4
2020
5
2019
5
2018
7
2017
2
2015
1
2005
1
2004
1
2003
1
Total violations on record: 36
Service Area
Cities Served
ZIP Codes Served
Recommended Water Filters
Based on contaminants detected in this water system:
Activated Carbon Filter
Effective for chlorine, THMs, pesticides, and taste/odor improvement
Removes: Total Trihalomethanes (TTHMs)
How does this compare?
This systemNational average
Grade F
Avg: B-C
36violations total
129% of national average
National avg: ~28 per system
📍 Mid-to-large system — serves 2× the national average.