STAFFORD COUNTRY MONTESSORI
Oregon — Transient Non-Community — PWSID: OR4195033
System Information
| PWSID | OR4195033 |
| System Name | STAFFORD COUNTRY MONTESSORI |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Non-Inventory |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Aug 6, 2007 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Oregon |
| City | TUALATIN |
| ZIP Code | 97062 |
| Address | 4564 SW BORLAND RD |
| Organization | WALKER, CATHLEEN |
| Phone | 503-427-2330 |
Population & Service
| Population Served | 17 |
| Service Connections | 1 |
Drinking Water Violations (33)
This water system has 33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2025 | Jun 30, 2025 | MON | No | Yes | — | — | — | Resolved | Dec 9, 2022 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MON | No | Yes | — | — | — | Resolved | Dec 9, 2022 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MON | No | Yes | — | — | — | Resolved | Dec 9, 2022 | — | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 9, 2022 | — | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 9, 2022 | — | |
| Jan 1, 2022 | Mar 31, 2022 | MON | No | Yes | — | — | — | Resolved | Mar 31, 2022 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MON | No | Yes | — | — | — | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jan 1, 2019 | Dec 31, 2019 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MON | No | Yes | — | — | — | Resolved | Sep 30, 2017 | — | |
| Jul 1, 2015 | Sep 30, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2015 | — | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2015 | — | |
| Oct 1, 2013 | Dec 31, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2013 | — | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2012 | — | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2012 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2001 | — | |
| Jul 1, 2001 | Sep 30, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2001 | — | |
| Jan 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2000 | Dec 31, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | — | |
| Apr 1, 2000 | Jun 30, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2000 | — | |
| Jan 1, 2000 | Dec 31, 2000 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Oct 1, 1999 | Dec 31, 1999 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 1999 | — | |
| Jul 1, 1999 | Sep 30, 1999 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1999 | — | |
| Apr 1, 1999 | Jun 30, 1999 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1999 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 1, 1999 | Mar 31, 1999 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 1999 | — | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1998 | — | |
| Apr 1, 1998 | Jun 30, 1998 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1998 | — | |
| Jan 1, 1998 | Dec 31, 1998 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1998 | — |
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.