Water Quality in Longmont, CO
12 water systems serving 111,281 people
City Overview
Average lead detection across Longmont water systems is 1.6 ppb (Low). The EPA action level is 15 ppb.
Violation Summary
| Total violations on record | 182 |
| Health-based violations | 7 |
| Lead action level violations | 0 |
| Open (unresolved) violations | 0 |
Water Systems in Longmont
Frequently Asked Questions
Is Longmont tap water safe to drink?
Longmont tap water meets EPA standards for most contaminants. Review the individual water system pages below for the latest lead sample results and violation history.
What is the water quality in Longmont, Colorado?
Longmont has 12 public water systems serving approximately 111,281 people. The average lead level across sampled systems is 1.6 ppb. There are 182 total violations on record.
Does Longmont have lead in the water?
EPA monitoring data shows an average lead detection of 1.6 ppb across Longmont's water systems. The EPA action level is 15 ppb. No lead action level violations are currently reported.
How many water utilities serve Longmont?
12 public water systems are registered in Longmont, Colorado with the EPA Safe Drinking Water Information System. Together they serve approximately 111,281 people.