DrinkingWaterCheck

TOMAH WATERWORKS: EPA violation history, explained

TOMAH WATERWORKS had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. It serves 9,192 people through 3,139 service connections.

TOMAH WATERWORKS's record against the rest of the country

TOMAH WATERWORKS has 25 violations on record in total, 18 of thems health-based - ranking it 1,029th of 12,903 systems by violation count, the 92th percentile nationally.

Against the average

TOMAH WATERWORKS's 18 health-based violations sit above the average of 11.2, across 244 systems statewide. The clean-record guide covers what a comparison like this can hide.

Most recent violation on record

TOMAH WATERWORKS's most recent violation on record is dated 2025-01-04, with the most recent health-based one dated 2025-01-04. Last reported to EPA: 05/29/2026.

The concern categories on record

TOMAH WATERWORKS'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:

The most severe category on record is radionuclides, which points toward a reverse osmosis-class filter if you want to address it directly.

What TOMAH WATERWORKS's record does not cover

TOMAH WATERWORKS'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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 25 logged violations can see. The guide to what this data misses covers that gap.