What's in DAYTON PUBLIC WATER SYSTEM's water?
DAYTON PUBLIC WATER SYSTEM has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 141,407, over 50,351 connections.
How this compares nationally
DAYTON PUBLIC WATER SYSTEM has 15 violations on record in total, 3 of thems health-based - ranking it 5,115th of 12,903 systems by violation count, the 60th percentile nationally.
How DAYTON PUBLIC WATER SYSTEM compares within OH
Among the 394 OH systems in this dataset, the average is 5.5 health-based violations - DAYTON PUBLIC WATER SYSTEM's 3 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for DAYTON PUBLIC WATER SYSTEM is from 2009-01-05 (health-based: 2009-01-05). Last reported to EPA: 05/15/2026.
What kind of problem, specifically
DAYTON PUBLIC WATER SYSTEM'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:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR); Surface Water Treatment Rule
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
This is what DAYTON PUBLIC WATER SYSTEM reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 15 logged violations can see. The guide to what this data misses covers that gap.