Water Quality in Lake Oswego, OR
10 water systems serving 48,069 people
City Overview
Average lead detection across Lake Oswego water systems is 12.4 ppb (Moderate). The EPA action level is 15 ppb. 1 system have triggered action level violations.
Violation Summary
| Total violations on record | 633 |
| Health-based violations | 37 |
| Lead action level violations | 1 |
| Open (unresolved) violations | 0 |
Water Systems in Lake Oswego
Frequently Asked Questions
Is Lake Oswego tap water safe to drink?
Lake Oswego 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 Lake Oswego, Oregon?
Lake Oswego has 10 public water systems serving approximately 48,069 people. The average lead level across sampled systems is 12.4 ppb. There are 633 total violations on record.
Does Lake Oswego have lead in the water?
EPA monitoring data shows an average lead detection of 12.4 ppb across Lake Oswego's water systems. The EPA action level is 15 ppb. 1 system have triggered lead action level violations.
How many water utilities serve Lake Oswego?
10 public water systems are registered in Lake Oswego, Oregon with the EPA Safe Drinking Water Information System. Together they serve approximately 48,069 people.