NEKOOSA WATERWORKS: EPA violation history, explained

NEKOOSA WATERWORKS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 2,394, over 1,035 connections.

NEKOOSA WATERWORKS's record against the rest of the country

7 total violations and 2 health-based ones put NEKOOSA WATERWORKS at the 48th percentile nationally for violation burden, rank 6,743 of 12,903.

How NEKOOSA WATERWORKS compares within WI

Among the 202 WI systems in this dataset, the average is 3.6 health-based violations - NEKOOSA WATERWORKS'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 NEKOOSA WATERWORKS is from 2015-01-07 (health-based: 2013-01-10). Last reported to EPA: 05/29/2026.

What kind of problem, specifically

NEKOOSA 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:

• 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

This is what NEKOOSA WATERWORKS 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 - 2 health-based violations on file for NEKOOSA WATERWORKS - 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.