Southend Water System
Washington — Transient Non-Community — PWSID: WA5301876
System Information
| PWSID | WA5301876 |
| System Name | Southend Water System |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 31, 2003 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Washington |
| City | Lopez Island |
| ZIP Code | 98261 |
| Address | 3024 Mud Bay Rd |
| Organization | Southend Water System |
| Phone | — |
Population & Service
| Population Served | 75 |
| Service Connections | 4 |
Drinking Water Violations (28)
This water system has 28 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, 2022 | Apr 30, 2022 | MON | No | Yes | — | — | — | Resolved | Apr 30, 2022 | — | |
| Mar 1, 2013 | Mar 31, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2013 | — | |
| Sep 1, 2012 | Sep 30, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2012 | — | |
| Jul 1, 2011 | Jul 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2011 | — | |
| Jan 1, 2011 | Jan 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2011 | — | |
| Nov 1, 2010 | Nov 30, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2010 | — | |
| 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 | — | 10 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 | — | 10 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 | — | 10 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 | — | 10 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 | — | 10 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Nov 1, 2006 | Nov 30, 2006 | MR | No | No | — | 5% of samples | — | Archived | Nov 30, 2006 | — | |
| Sep 1, 2005 | Sep 30, 2005 | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 2005 | — | |
| Aug 1, 2005 | Aug 31, 2005 | MCL | Yes | No | — | 5% of samples | — | Archived | Aug 31, 2005 | — | |
| Jul 1, 2004 | Jul 31, 2004 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 2004 | — | |
| Jun 1, 2004 | Jun 30, 2004 | MR | No | No | — | 5% of samples | — | Archived | Jun 30, 2004 | — | |
| May 1, 2004 | May 31, 2004 | MR | No | No | — | 5% of samples | — | Archived | May 31, 2004 | — | |
| Apr 1, 2004 | Apr 30, 2004 | MR | No | No | — | 5% of samples | — | Archived | Apr 30, 2004 | — | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2004 | Jan 31, 2004 | MR | No | No | — | 5% of samples | — | Archived | Jan 31, 2004 | — | |
| Nov 1, 2003 | Nov 30, 2003 | MR | No | No | — | 5% of samples | — | Archived | Nov 30, 2003 | — | |
| Jan 1, 2003 | Dec 31, 2003 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2003 | — |
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.