Is WEST MANCHESTER TWP AUTH's water safe to drink?
WEST MANCHESTER TWP AUTH has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 9,960 people get their water from it, across 3,851 connections.
How this compares nationally
WEST MANCHESTER TWP AUTH has 455 violations on record in total, 1 of them health-based - ranking it 7,075th of 12,903 systems by violation count, the 45th percentile nationally.
How WEST MANCHESTER TWP AUTH compares within PA
Among the 475 PA systems in this dataset, the average is 5.5 health-based violations - WEST MANCHESTER TWP AUTH'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 WEST MANCHESTER TWP AUTH is from 2025-01-02 (health-based: 2007-01-06). Last reported to EPA: 06/15/2026.
What kind of problem, specifically
WEST MANCHESTER TWP 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:
- 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
Everything on this page is WEST MANCHESTER TWP AUTH's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and WEST MANCHESTER TWP AUTH's customers' taps is household plumbing, invisible to a system-level record ranked 7,075th of 12,903 by violation count. The guide to what this data misses covers that gap.