Water Quality in Sammamish, WA
6 water systems serving 88,083 people
City Overview
Average lead detection across Sammamish water systems is 1.0 ppb (Very low). The EPA action level is 15 ppb.
Violation Summary
| Total violations on record | 490 |
| Health-based violations | 10 |
| Lead action level violations | 0 |
| Open (unresolved) violations | 0 |
Water Systems in Sammamish
Frequently Asked Questions
Is Sammamish tap water safe to drink?
Sammamish 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 Sammamish, Washington?
Sammamish has 6 public water systems serving approximately 88,083 people. The average lead level across sampled systems is 1.0 ppb. There are 490 total violations on record.
Does Sammamish have lead in the water?
EPA monitoring data shows an average lead detection of 1.0 ppb across Sammamish's water systems. The EPA action level is 15 ppb. No lead action level violations are currently reported.
How many water utilities serve Sammamish?
6 public water systems are registered in Sammamish, Washington with the EPA Safe Drinking Water Information System. Together they serve approximately 88,083 people.