Mary M Knight School
Washington - Non-Transient Non-Community - PWSID: WA5342895
System Information
| PWSID | WA5342895 |
| System Name | Mary M Knight School |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 10 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Feb 7, 1981 |
| Last Reported | Jun 19, 2026 |
Location & Contact
| State | Washington |
| City | UNION |
| ZIP Code | 98592-9649 |
| Address | 21 E WARREN DR |
| Organization | Mary M Knight School |
| Phone | - |
Population & Service
| Population Served | 270 |
| Service Connections | 1 |
Drinking Water Violations (35)
This water system has 35 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, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2005 | - | |
| Nov 1, 1997 | Nov 30, 1997 | MR | No | Yes | - | 5% of samples | - | Archived | Nov 30, 1997 | - | |
| Dec 1, 1992 | Dec 31, 1992 | MR | No | Yes | - | 5% of samples | - | Archived | Dec 31, 1992 | - | |
| Dec 1, 1992 | Dec 31, 1992 | MR | No | Yes | - | 5% of samples | - | Archived | Dec 31, 1992 | - | |
| Sep 1, 1992 | Sep 30, 1992 | MR | No | Yes | - | 5% of samples | - | Archived | Sep 30, 1992 | - | |
| Sep 1, 1992 | Sep 30, 1992 | MR | No | Yes | - | 5% of samples | - | Archived | Sep 30, 1992 | - | |
| Aug 1, 1992 | Aug 31, 1992 | MR | No | Yes | - | 5% of samples | - | Archived | Aug 31, 1992 | - | |
| Aug 1, 1992 | Aug 31, 1992 | MR | No | Yes | - | 5% of samples | - | Archived | Aug 31, 1992 | - | |
| Apr 1, 1992 | Apr 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Apr 30, 1992 | - | |
| Apr 1, 1992 | Apr 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Apr 30, 1992 | - | |
| Apr 1, 1992 | Apr 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Apr 30, 1992 | - | |
| Apr 1, 1992 | Apr 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Apr 30, 1992 | - | |
| - | - | - | 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.