MASON WATER DEPT: EPA violation history, explained
MASON WATER DEPT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 3,642 people through 1,296 service connections.
MASON WATER DEPT's record against the rest of the country
Out of 12,903 systems in this dataset, MASON WATER DEPT ranks 6,144th by violation burden (52th percentile) - 25 violations total, 2 health-baseds.
How MASON WATER DEPT compares within TN
Among the 318 TN systems in this dataset, the average is 4.8 health-based violations - MASON WATER DEPT's 2 is at or below that. 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 MASON WATER DEPT is from 2024-01-07 (health-based: 2021-01-12). Last reported to EPA: 05/14/2026.
What kind of problem, specifically
MASON WATER DEPT'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
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 MASON WATER DEPT's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 2 health-based violations on file for MASON WATER DEPT - 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.