Water Quality in Seattle, WA
108 water systems serving 1,238,047 people
City Overview
Average lead detection across Seattle water systems is 3.4 ppb (Low). The EPA action level is 15 ppb. 1 system have triggered action level violations.
Violation Summary
| Total violations on record | 2209 |
| Health-based violations | 95 |
| Lead action level violations | 1 |
| Open (unresolved) violations | 0 |
Water Systems in Seattle
Frequently Asked Questions
Is Seattle tap water safe to drink?
Seattle 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 Seattle, Washington?
Seattle has 108 public water systems serving approximately 1,238,047 people. The average lead level across sampled systems is 3.4 ppb. There are 2209 total violations on record.
Does Seattle have lead in the water?
EPA monitoring data shows an average lead detection of 3.4 ppb across Seattle's water systems. The EPA action level is 15 ppb. 1 system have triggered lead action level violations.
How many water utilities serve Seattle?
108 public water systems are registered in Seattle, Washington with the EPA Safe Drinking Water Information System. Together they serve approximately 1,238,047 people.