Is DEFIANCE CITY's water safe to drink?
DEFIANCE CITY had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 16,494, over 6,615 connections.
Ranked against every other system in this dataset
DEFIANCE CITY has 74 violations on record in total, 54 of thems health-based - ranking it 246th of 12,903 systems by violation count, the 98th percentile nationally.
How DEFIANCE CITY compares within OH
Among the 394 OH systems in this dataset, the average is 5.5 health-based violations - DEFIANCE CITY's 54 is above that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for DEFIANCE CITY is from 2022-04-04 (health-based: 2022-01-07). Last reported to EPA: 05/15/2026.
What kind of problem, specifically
DEFIANCE CITY's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Lead & copper - flagged from: Lead and Copper Rule
- Nitrate / nitrite - flagged from: Nitrate
- Microbial contamination / treatment technique - flagged from: Surface Water Treatment Rule
- Disinfection byproducts - flagged from: TTHM
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What this data is and is not
Everything on this page is DEFIANCE CITY's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 54 health-based violations on file for DEFIANCE CITY - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.