Medina Co/Northwest Pws, OH Water Quality
Medina Co/Northwest Pws: EPA violation history, explained
Medina Co/Northwest Pws has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 46,324, over 16,845 connections.
How this compares nationally
Medina Co/Northwest Pws has 9 violations on record in total, 1 of them health-based - ranking it 8,275th of 12,903 systems by violation count, the 36th percentile nationally.
How Medina Co/Northwest Pws compares within OH
Among the 412 OH systems in this dataset, the average is 5.3 health-based violations - Medina Co/Northwest Pws's 1 is at or below 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 Medina Co/Northwest Pws is from 2022-07-12 (health-based: 1994-01-09). Last reported to EPA: 05/15/2026.
What kind of problem, specifically
Medina Co/Northwest Pws'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)
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 Medina Co/Northwest Pws 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 9 logged violations can see. The guide to what this data misses covers that gap.