HERCULANEUM PWS: EPA violation history, explained
HERCULANEUM PWS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 5,000 people through 1,966 service connections.
HERCULANEUM PWS's record against the rest of the country
HERCULANEUM PWS has 7 violations on record in total, 1 of them health-based - ranking it 8,480th of 12,903 systems by violation count, the 34th percentile nationally.
How HERCULANEUM PWS compares within MO
HERCULANEUM PWS's 1 health-based violations sit within the MO average of 6.1, across 327 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 HERCULANEUM PWS is from 2025-02-07 (health-based: 1998-01-12). Last reported to EPA: 06/16/2026.
What kind of problem, specifically
HERCULANEUM PWS'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
HERCULANEUM PWS'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. Between the utility's meter and HERCULANEUM PWS's customers' taps is household plumbing, invisible to a system-level record ranked 8,480th of 12,903 by violation count. The guide to what this data misses covers that gap.