JOINT WATER COMMISSION
Oregon — Community Water System — PWSID: OR4100379
System Information
| PWSID | OR4100379 |
| System Name | JOINT WATER COMMISSION |
| 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 | Mar 12, 1979 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Oregon |
| City | HILLSBORO |
| ZIP Code | 97123 |
| Address | 150 E MAIN ST |
| Organization | JOINT WATER COMMISSION |
| Phone | 503-615-6671 |
Population & Service
| Population Served | — |
| Service Connections | 4 |
Drinking Water Violations (55)
This water system has 55 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, 2023 | Mar 31, 2023 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2023 | — | |
| Mar 1, 2023 | Mar 31, 2023 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2023 | — | |
| Mar 1, 2023 | Mar 31, 2023 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2023 | — | |
| Jan 1, 2023 | — | MR | No | No | — | TT | — | Resolved | May 1, 2023 | — | |
| Sep 1, 2020 | Sep 30, 2020 | MR | No | Yes | — | — | — | Resolved | Sep 30, 2020 | — | |
| Sep 1, 2020 | Sep 30, 2020 | MR | No | Yes | — | — | — | Resolved | Sep 30, 2020 | — | |
| Sep 1, 2020 | Sep 30, 2020 | MR | No | Yes | — | — | — | Resolved | Sep 30, 2020 | — | |
| Jul 1, 2020 | — | MR | No | No | — | TT | — | Resolved | Nov 4, 2020 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Apr 1, 2001 | Apr 30, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2001 | — | |
| Mar 1, 2000 | Mar 31, 2000 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2000 | — | |
| Oct 1, 1997 | Oct 31, 1997 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 1997 | — | |
| Jan 1, 1995 | Jan 31, 1995 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 1995 | — | |
| Jun 1, 1993 | Jun 30, 1993 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1993 | — | |
| Feb 1, 1993 | Feb 28, 1993 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 1993 | — | |
| Dec 1, 1992 | Dec 31, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 1992 | — | |
| Oct 1, 1992 | Oct 31, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 1992 | — | |
| May 1, 1992 | May 31, 1992 | MR | No | No | — | 5% of samples | — | Resolved | May 31, 1992 | — | |
| Mar 1, 1992 | Mar 31, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 1992 | — | |
| Feb 1, 1992 | Feb 29, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Feb 29, 1992 | — | |
| Jan 1, 1992 | Jan 31, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 1992 | — | |
| Dec 1, 1991 | Dec 31, 1991 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 1991 | — | |
| Nov 1, 1991 | Nov 30, 1991 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1991 | — | |
| Oct 1, 1991 | Oct 31, 1991 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | — | |
| Sep 1, 1991 | Sep 30, 1991 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1991 | — | |
| Aug 1, 1991 | Aug 31, 1991 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 1991 | — | |
| Jul 1, 1991 | Jul 31, 1991 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 1991 | — | |
| Jun 1, 1991 | Jun 30, 1991 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1991 | — |
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.