ST MARYS AREA WATER AUTH: EPA violation history, explained
ST MARYS AREA WATER AUTH has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 19,588 people get their water from it, across 7,412 connections.
How this compares nationally
Out of 12,903 systems in this dataset, ST MARYS AREA WATER AUTH ranks 1,875th by violation burden (85th percentile) - 152 violations total, 10 health-baseds.
How ST MARYS AREA WATER AUTH compares within PA
ST MARYS AREA WATER AUTH's 10 health-based violations sit above the PA average of 5.5, across 475 systems statewide. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for ST MARYS AREA WATER AUTH is from 2025-11-01 (health-based: 2016-01-01). Last reported to EPA: 06/15/2026.
What kind of problem, specifically
ST MARYS AREA 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:
- Microbial contamination / treatment technique - flagged from: Surface Water Treatment Rule
- Other regulated metals - flagged from: Antimony, Total; Mercury; Selenium
- Disinfection byproducts - flagged from: Total Haloacetic Acids (HAA5)
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 ST MARYS AREA 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. This record - 10 health-based violations on file for ST MARYS AREA WATER AUTH - 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.