Population Served
40.0K
Service Connections
13.0K
Total Violations
39
Health-Based Violations
2
Lead & Copper Data
Lead Level
Safe0.00 ppb
Action Level: 15 ppb (EPA) · Sampled: 2023-12-31
015 ppb action level
Copper Level
No copper sampling data available
System Details
- Water Source
- Purchased Surface Water
- System Type
- Community Water System
- City
- LAKE OSWEGO
- ZIP Code
- 97035
- Counties Served
- Clackamas
- Cities Served
- Lake Oswego
- Open Violations
- 0
- State
- Oregon
Violation Summary
39
Total Violations
2
Health-Based
0
Open Now
Most recent violation: 2025-07-01
Explore Oregon Water Quality
See all water systems, lead data, and violation trends for Oregon.
Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: OR4100457.SafeWater Home