HILLTOP WATER OWNERS ASSOCIATION
Washington - Community Water System - PWSID: WA5333364
System Information
| PWSID | WA5333364 |
| System Name | HILLTOP WATER OWNERS ASSOCIATION |
| 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 | Aug 24, 1984 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Washington |
| City | Lummi Island |
| ZIP Code | 98262 |
| Address | 2912 Cedar Ave |
| Organization | HILLTOP WATER OWNERS ASSOCIATION |
| Phone | - |
Population & Service
| Population Served | 137 |
| Service Connections | 57 |
Drinking Water Violations (49)
This water system has 49 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, 2020 | Jul 31, 2020 | MON | No | Yes | - | - | - | Resolved | Jul 31, 2020 | - | |
| Jun 1, 2020 | Jun 30, 2020 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2020 | - | |
| Jan 1, 2010 | Mar 31, 2010 | MCL | Yes | No | 12.8 MG/L | 0.010 mg/L | - | Resolved | Mar 31, 2010 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Nov 1, 2006 | Nov 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Archived | Nov 30, 2006 | - | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Archived | Jun 30, 2006 | - | |
| Mar 1, 2004 | Mar 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Archived | Mar 31, 2004 | - | |
| Feb 1, 2004 | Feb 29, 2004 | MCL | Yes | No | - | 5% of samples | - | Archived | Feb 29, 2004 | - | |
| May 1, 1995 | May 31, 1995 | MCL | Yes | No | - | 5% of samples | - | Archived | May 31, 1995 | - | |
| Oct 19, 1994 | Nov 18, 1994 | MR | No | Yes | - | 5% of samples | - | Archived | Nov 18, 1994 | - | |
| Dec 1, 1992 | Dec 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | Dec 31, 1992 | - | |
| Nov 1, 1992 | Nov 30, 1992 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1992 | - | |
| Nov 1, 1992 | Nov 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Nov 30, 1992 | - | |
| Oct 1, 1992 | Oct 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Oct 31, 1992 | - | |
| Aug 1, 1992 | Aug 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | Aug 31, 1992 | - | |
| Jul 1, 1992 | Jul 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Jul 31, 1992 | - | |
| Jul 1, 1992 | Jul 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | Jul 31, 1992 | - | |
| Jul 1, 1992 | Jul 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Jul 31, 1992 | - | |
| Jul 1, 1992 | Jul 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Jul 31, 1992 | - | |
| Feb 1, 1992 | Feb 29, 1992 | MR | No | Yes | - | 5% of samples | - | Archived | Feb 29, 1992 | - | |
| Jan 1, 1992 | Jan 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Jan 31, 1992 | - | |
| Jan 1, 1992 | Jan 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Jan 31, 1992 | - | |
| Jan 1, 1992 | Jan 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Jan 31, 1992 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | 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.