LAKE OSWEGO - TIGARD WATER SUPPLY
Oregon - Community Water System - PWSID: OR4101542
System Information
| PWSID | OR4101542 |
| System Name | LAKE OSWEGO - TIGARD WATER SUPPLY |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Feb 13, 2020 |
| Last Reported | Jun 26, 2026 |
Location & Contact
| State | Oregon |
| City | WEST LINN |
| ZIP Code | 97068 |
| Address | 4260 KENTHORPE WAY |
| Organization | LAKE OSWEGO - TIGARD WATER SUPPLY |
| Phone | 971-415-4415 |
Population & Service
| Population Served | - |
| Service Connections | 2 |
Drinking Water Violations (4)
This water system has 4 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 1, 2026 | Mar 31, 2026 | MR | No | Yes | - | - | - | Archived | Mar 31, 2026 | - | |
| Mar 1, 2026 | Mar 31, 2026 | MR | No | Yes | - | - | - | Archived | Mar 31, 2026 | - | |
| Mar 1, 2026 | Mar 31, 2026 | MR | No | Yes | - | - | - | Archived | Mar 31, 2026 | - | |
| Jan 1, 2026 | - | MR | No | No | - | TT | - | Unaddressed | - | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.