New Berlin Water Utility, WI Water Quality
What's in New Berlin Water Utility's water?
New Berlin Water Utility has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 27,899 people through 9,662 service connections.
New Berlin Water Utility's record against the rest of the country
Out of 12,903 systems in this dataset, New Berlin Water Utility ranks 1,287th by violation burden (90th percentile) - 274 violations total, 14 health-based.
How New Berlin Water Utility compares within WI
Among the 259 WI systems in this dataset, the average is 5.4 health-based violations - New Berlin Water Utility's 14 is above that. 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 New Berlin Water Utility is from 2017-01-01 (health-based: 2000-01-01). Last reported to EPA: 05/29/2026.
What kind of problem, specifically
New Berlin Water Utility'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)
- Radionuclides - flagged from: Combined Radium (-226 and -228); Gross Alpha, Excl. Radon and U
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 New Berlin Water Utility 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 New Berlin Water Utility's customers' taps is household plumbing, invisible to a system-level record ranked 1,287th of 12,903 by violation count. The guide to what this data misses covers that gap.