What's in NILES's water?
NILES's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 14,215 people get their water from it, across 5,000 connections.
How this compares nationally
NILES has 28 violations on record in total, 0 of thems health-based - ranking it 9,832th of 12,903 systems by violation count, the 24th percentile nationally.
Against the MI average
MI's 390 covered systems average 1.3 health-based violations each; NILES carries 0, not more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
NILES's most recent violation on record is dated 2022-11-07. Last reported to EPA: 06/23/2026.
What NILES's record does not cover
NILES'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. Between the utility's meter and NILES's customers' taps is household plumbing, invisible to a system-level record ranked 9,832th of 12,903 by violation count. The guide to what this data misses covers that gap.