Beloit City of, WI Water Quality
What's in Beloit City of's water?
Beloit City of has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 36,677 people through 13,584 service connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, Beloit City of ranks 6,471th by violation burden (50th percentile) - 11 violations total, 2 health-based.
Against the WI average
Among the 259 WI systems in this dataset, the average is 5.4 health-based violations - Beloit City of's 2 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
Beloit City of's most recent violation on record is dated 2024-01-07, with the most recent health-based one dated 2019-01-10. Last reported to EPA: 05/29/2026.
The concern categories on record
Beloit City of'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:
- Radionuclides - flagged from: Combined Radium (-226 and -228)
The most severe category on record is radionuclides, which points toward a reverse osmosis-class filter if you want to address it directly.
What Beloit City of's record does not cover
This is what Beloit City of 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 Beloit City of - 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.