MADISON SUBURBAN U.D.: EPA violation history, explained
MADISON SUBURBAN U.D. has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 81,203 people get their water from it, across 35,153 connections.
How this compares nationally
10 total violations and 1 health-based ones put MADISON SUBURBAN U.D. at the 36th percentile nationally for violation burden, rank 8,203 of 12,903.
Against the TN average
TN's 318 covered systems average 4.8 health-based violations each; MADISON SUBURBAN U.D. carries 1, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
MADISON SUBURBAN U.D.'s most recent violation on record is dated 2021-01-07, with the most recent health-based one dated 2000-01-01. Last reported to EPA: 05/14/2026.
The concern categories on record
MADISON SUBURBAN U.D.'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 MADISON SUBURBAN U.D.'s record does not cover
This is what MADISON SUBURBAN U.D. 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 MADISON SUBURBAN U.D.'s customers' taps is household plumbing, invisible to a system-level record ranked 8,203th of 12,903 by violation count. The guide to what this data misses covers that gap.