PORTLAND WATER DEPARTMENT
- Community Water System - PWSID: CT1130011
System Information
| PWSID | CT1130011 |
| System Name | PORTLAND WATER DEPARTMENT |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 8, 1979 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | |
| City | - |
| ZIP Code | - |
| Address | - |
| Organization | - |
| Phone | - |
Population & Service
| Population Served | 5,010 |
| Service Connections | 2,322 |
Drinking Water Violations (66)
This water system has 66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 30, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Dec 30, 2022 | - | MR | No | No | - | TT | - | Resolved | Feb 10, 2023 | - | |
| Dec 30, 2022 | - | MR | No | No | - | TT | - | Resolved | Feb 10, 2023 | - | |
| Aug 10, 2018 | - | Other | No | No | - | - | - | Resolved | May 9, 2022 | - | |
| Aug 10, 2018 | - | Other | No | No | - | - | - | Resolved | May 9, 2022 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Jan 2, 2020 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Jan 2, 2020 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Aug 1, 2007 | Aug 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2007 | - | |
| Aug 1, 2007 | Aug 31, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2007 | - | |
| Aug 1, 2007 | Aug 31, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2007 | - | |
| Aug 1, 2007 | Aug 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2007 | - | |
| Aug 1, 2007 | Aug 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2007 | - | |
| Aug 1, 2007 | Aug 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2007 | - | |
| Jul 1, 2006 | - | Other | No | No | - | - | - | Resolved | Jul 19, 2006 | - | |
| Jul 1, 2006 | - | Other | No | No | - | - | - | Resolved | Jul 19, 2006 | - | |
| Jun 1, 2000 | Jun 30, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2000 | - | |
| Jun 1, 2000 | Jun 30, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2000 | - | |
| Jun 1, 2000 | Jun 30, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2000 | - | |
| Jun 1, 2000 | Jun 30, 2000 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2000 | - | |
| Oct 1, 1996 | Oct 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1996 | - | |
| Oct 1, 1996 | Oct 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1996 | - | |
| Oct 1, 1996 | Oct 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1996 | - | |
| Oct 1, 1996 | Oct 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1996 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Jan 1, 1993 | - | MR | No | No | - | TT | - | Resolved | Apr 23, 1993 | - | |
| Jan 1, 1993 | - | MR | No | No | - | TT | - | Resolved | Apr 23, 1993 | - | |
| Jan 1, 1993 | - | MR | No | No | - | TT | - | Resolved | Apr 23, 1993 | - | |
| Jan 1, 1993 | - | MR | No | No | - | TT | - | Resolved | Apr 23, 1993 | - | |
| Jul 1, 1992 | Dec 31, 1992 | MR | No | No | - | TT | - | Resolved | Dec 31, 1992 | - | |
| Jul 1, 1992 | Dec 31, 1992 | MR | No | No | - | TT | - | Resolved | Dec 31, 1992 | - | |
| Jul 1, 1992 | Dec 31, 1992 | MR | No | No | - | TT | - | Resolved | Dec 31, 1992 | - | |
| Jul 1, 1992 | Dec 31, 1992 | MR | No | No | - | TT | - | Resolved | Dec 31, 1992 | - | |
| Jun 1, 1992 | Jun 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 17, 1992 | - | |
| Jun 1, 1992 | Jun 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 17, 1992 | - | |
| Jun 1, 1992 | Jun 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 17, 1992 | - | |
| Jun 1, 1992 | Jun 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 17, 1992 | - | |
| Jan 1, 1992 | - | TT | Yes | No | - | - | - | Resolved | Dec 31, 1999 | - | |
| Jan 1, 1992 | - | TT | Yes | No | - | - | - | Resolved | Dec 31, 1999 | - | |
| Jan 1, 1992 | - | TT | Yes | No | - | - | - | Resolved | Dec 31, 1999 | - | |
| Jan 1, 1992 | Dec 31, 1999 | TT | Yes | No | - | - | - | Archived | Dec 31, 1999 | - | |
| - | - | - | 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.