AQUA PA MAIN SYSTEM: EPA violation history, explained
AQUA PA MAIN SYSTEM had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 822,600 people get their water from it, across 304,127 connections.
How this compares nationally
120 total violations and 7 health-based ones put AQUA PA MAIN SYSTEM at the 80th percentile nationally for violation burden, rank 2,557 of 12,903.
Against the PA average
AQUA PA MAIN SYSTEM's 7 health-based violations sit above the PA average of 5.5, across 475 systems statewide. See the lead and copper guide for why lead counts differently.
Most recent violation on record
AQUA PA MAIN SYSTEM's most recent violation on record is dated 2025-01-11, with the most recent health-based one dated 2024-01-11. Last reported to EPA: 06/15/2026.
The concern categories on record
AQUA PA MAIN 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); Groundwater Rule; Revised Total Coliform Rule; 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 AQUA PA MAIN SYSTEM's record does not cover
AQUA PA MAIN SYSTEM's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. This record - 7 health-based violations on file for AQUA PA MAIN SYSTEM - 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.