WILLIAMSPORT MUN WATER AUTH: EPA violation history, explained
WILLIAMSPORT MUN WATER AUTH has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 51,000 people get their water from it, across 18,558 connections.
WILLIAMSPORT MUN WATER AUTH's record against the rest of the country
WILLIAMSPORT MUN WATER AUTH has 33 violations on record in total, 1 of them health-based - ranking it 7,613th of 12,903 systems by violation count, the 41th percentile nationally.
How WILLIAMSPORT MUN WATER AUTH compares within PA
PA's 475 covered systems average 5.5 health-based violations each; WILLIAMSPORT MUN WATER AUTH carries 1, not more than typical for the state. 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 WILLIAMSPORT MUN WATER AUTH is from 2018-01-10 (health-based: 1985-01-07). Last reported to EPA: 06/15/2026.
What kind of problem, specifically
WILLIAMSPORT MUN WATER AUTH'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:
- Disinfection byproducts - flagged from: TTHM
The most severe category on record is disinfection byproducts, which points toward a carbon-class filter if you want to address it directly.
What this data is and is not
This is what WILLIAMSPORT MUN WATER AUTH 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. Between the utility's meter and WILLIAMSPORT MUN WATER AUTH's customers' taps is household plumbing, invisible to a system-level record ranked 7,613th of 12,903 by violation count. The guide to what this data misses covers that gap.