Public water system record
Lake Oswego - Tigard Water Supply
On record as serving Clackamas County, OR · Population served not reported
Federal records show no health-based violations and no monitoring or reporting issues for Lake Oswego - Tigard Water Supply in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Lake Oswego - Tigard Water Supply draws water from 1 surface water intake.
Check whether Lake Oswego - Tigard Water Supply serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016, and no monitoring or reporting violations either.
Where the water comes from
Lake Oswego - Tigard Water Supply draws water from 1 surface water intake. 2 other community water systems buy water from Lake Oswego - Tigard Water Supply.
Community systems that buy water from it
- City of Tigard Tigard, OR
- Lake Oswego Municipal Water Lake Oswego, OR
Annual water quality report
Lake Oswego - Tigard Water Supply must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Oregon.
Certified drinking water labs by state EPA guidance for private wells