Water Quality in Decorah, IA
48 water systems serving 11,472 people
City Overview
Average lead detection across Decorah water systems is 4.9 ppb (Low). The EPA action level is 15 ppb.
Violation Summary
| Total violations on record | 2362 |
| Health-based violations | 514 |
| Lead action level violations | 0 |
| Open (unresolved) violations | 0 |
Water Systems in Decorah
Frequently Asked Questions
Is Decorah tap water safe to drink?
Decorah 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 Decorah, Iowa?
Decorah has 48 public water systems serving approximately 11,472 people. The average lead level across sampled systems is 4.9 ppb. There are 2362 total violations on record.
Does Decorah have lead in the water?
EPA monitoring data shows an average lead detection of 4.9 ppb across Decorah's water systems. The EPA action level is 15 ppb. No lead action level violations are currently reported.
How many water utilities serve Decorah?
48 public water systems are registered in Decorah, Iowa with the EPA Safe Drinking Water Information System. Together they serve approximately 11,472 people.