SHOAL BAY & SWIFT BAY WATER ASSN.
Washington - Community Water System - PWSID: WA5378398
System Information
| PWSID | WA5378398 |
| System Name | SHOAL BAY & SWIFT BAY WATER ASSN. |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 7, 1981 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Washington |
| City | Lopez Island |
| ZIP Code | 98261 |
| Address | 421 Lopez Hill Rd |
| Organization | SHOAL BAY & SWIFT BAY WATER ASSN. |
| Phone | - |
Population & Service
| Population Served | 35 |
| Service Connections | 45 |
Drinking Water Violations (69)
This water system has 69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Jan 31, 2018 | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Sep 22, 2014 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Oct 25, 2012 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Nov 1, 2010 | Nov 30, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2010 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 2 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 2 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 2 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 2 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 2004 | - |
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.