Oneida #1 Or Site #1, WI Water Quality
Oneida #1 Or Site #1: EPA violation history, explained
Oneida #1 Or Site #1's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. It serves 4,393 people through 676 service connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, Oneida #1 Or Site #1 ranks 9,772th by violation burden (24th percentile) - 32 violations total, 0 health-based.
How Oneida #1 Or Site #1 compares within WI
Among the 259 WI systems in this dataset, the average is 5.4 health-based violations - Oneida #1 Or Site #1's 0 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for Oneida #1 Or Site #1 is from 2024-01-01. Last reported to EPA: 06/30/2026.
What this data is and is not
This is what Oneida #1 Or Site #1 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 - 0 health-based violations on file for Oneida #1 Or Site #1 - 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.