Is NORTHERN COLORADO WA's water safe to drink?
NORTHERN COLORADO WA's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 4,675 people get their water from it, across 1,504 connections.
How this compares nationally
NORTHERN COLORADO WA has 34 violations on record in total, 0 of thems health-based - ranking it 9,744th of 12,903 systems by violation count, the 24th percentile nationally.
Against the CO average
CO's 230 covered systems average 3.0 health-based violations each; NORTHERN COLORADO WA 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
NORTHERN COLORADO WA's most recent violation on record is dated 2005-01-11. Last reported to EPA: 06/17/2026.
What NORTHERN COLORADO WA's record does not cover
This is what NORTHERN COLORADO WA 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 NORTHERN COLORADO WA's customers' taps is household plumbing, invisible to a system-level record ranked 9,744th of 12,903 by violation count. The guide to what this data misses covers that gap.