PORTLAND WATER BUREAU
Oregon - Community Water System - PWSID: OR4100657
System Information
| PWSID | OR4100657 |
| System Name | PORTLAND WATER BUREAU |
| System Type | Community Water System |
| Water Source | Surface Water |
| 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 | PORTLAND |
| ZIP Code | 97227 |
| Address | 1900 N INTERSTATE AVE |
| Organization | PORTLAND WATER BUREAU |
| Phone | 503-823-1251 |
Population & Service
| Population Served | 666,200 |
| Service Connections | 187,700 |
Drinking Water Violations (32)
This water system has 32 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2022 | Jul 31, 2022 | MON | No | No | - | - | - | Resolved | Jul 31, 2022 | - | |
| Dec 18, 2017 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Sep 1, 2013 | Sep 30, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2013 | - | |
| Sep 1, 2013 | Sep 30, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2013 | - | |
| Sep 1, 2013 | Sep 30, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2013 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2012 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2012 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2012 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2012 | - | |
| Nov 1, 2009 | Nov 30, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2009 | - | |
| Nov 1, 2009 | Nov 30, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2009 | - | |
| Nov 1, 2009 | Nov 30, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2009 | - | |
| Nov 1, 2009 | Nov 30, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2009 | - | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 2007 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jun 24, 1979 | Jun 23, 1980 | MR | No | No | - | 10 mg/L | - | Archived | Jun 23, 1980 | - | |
| Jun 24, 1979 | Jun 23, 1980 | MR | No | No | - | 2 mg/L | - | Archived | Jun 23, 1980 | - | |
| Jun 24, 1979 | Jun 23, 1980 | MR | No | No | - | 0.1 mg/L | - | Archived | Jun 23, 1980 | - | |
| Jun 24, 1979 | Jun 23, 1980 | MR | No | No | - | 0.005 mg/L | - | Archived | Jun 23, 1980 | - | |
| Jun 24, 1979 | Jun 23, 1980 | MR | No | No | - | 0.05 mg/L | - | Archived | Jun 23, 1980 | - | |
| Jun 24, 1979 | Jun 23, 1980 | MR | No | No | - | 0.010 mg/L | - | Archived | Jun 23, 1980 | - | |
| Jun 24, 1979 | Jun 23, 1980 | MR | No | No | - | 0.002 mg/L | - | Archived | Jun 23, 1980 | - | |
| Jun 24, 1979 | Jun 23, 1980 | MR | No | No | - | 4.0 mg/L | - | Archived | Jun 23, 1980 | - | |
| Jun 1, 1976 | May 31, 1980 | MR | No | No | - | 5 pCi/L | - | Archived | May 31, 1980 | - | |
| Jun 1, 1976 | May 31, 1980 | MR | No | No | - | 15 pCi/L | - | Archived | May 31, 1980 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.