TUALATIN VALLEY WATER DISTRICT
Oregon — Community Water System — PWSID: OR4100665
System Information
| PWSID | OR4100665 |
| System Name | TUALATIN VALLEY WATER DISTRICT |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 12, 1979 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Oregon |
| City | BEAVERTON |
| ZIP Code | 97003 |
| Address | 1850 SW 170TH AVE |
| Organization | TUALATIN VALLEY WATER DISTRICT |
| Phone | 971-277-8813 |
Population & Service
| Population Served | 224,600 |
| Service Connections | 62,160 |
Drinking Water Violations (18)
This water system has 18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | — | 10 mg/L | — | Archived | Dec 31, 2025 | — | |
| Apr 1, 2001 | Apr 30, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2001 | — | |
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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.