SHADOW MOUNTAIN
Washington — Transient Non-Community — PWSID: WA5388382
System Information
| PWSID | WA5388382 |
| System Name | SHADOW MOUNTAIN |
| 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 | Feb 7, 1981 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Washington |
| City | SEQUIM |
| ZIP Code | 98382 |
| Address | PO BOX 92 |
| Organization | SHADOW MOUNTAIN |
| Phone | — |
Population & Service
| Population Served | 656 |
| Service Connections | 63 |
Drinking Water Violations (38)
This water system has 38 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, 2020 | Dec 31, 2020 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Mar 1, 2019 | Mar 31, 2019 | MON | No | Yes | — | — | — | Resolved | Mar 31, 2019 | — | |
| Feb 1, 2019 | Feb 28, 2019 | MON | No | Yes | — | — | — | Resolved | Feb 28, 2019 | — | |
| Jan 1, 2019 | Jan 31, 2019 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2019 | — | |
| Jan 1, 2019 | Jan 31, 2019 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2019 | — | |
| Dec 1, 2018 | Dec 31, 2018 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2018 | — | |
| Dec 1, 2018 | Dec 31, 2018 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2018 | — | |
| Nov 1, 2018 | Nov 30, 2018 | MON | No | Yes | — | — | — | Resolved | Nov 30, 2018 | — | |
| Nov 1, 2018 | Nov 30, 2018 | MON | No | Yes | — | — | — | Resolved | Nov 30, 2018 | — | |
| Oct 1, 2018 | Oct 31, 2018 | MON | No | Yes | — | — | — | Resolved | Oct 31, 2018 | — | |
| Oct 1, 2018 | Oct 31, 2018 | MON | No | Yes | — | — | — | Resolved | Oct 31, 2018 | — | |
| Jul 1, 2018 | Jul 31, 2018 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2018 | — | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Feb 1, 2014 | Feb 28, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2014 | — | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2012 | — | |
| 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 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Sep 1, 2006 | Sep 30, 2006 | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 2006 | — | |
| Jul 1, 2006 | Jul 31, 2006 | MCL | Yes | No | — | 5% of samples | — | Archived | Jul 31, 2006 | — | |
| Nov 1, 2005 | Nov 30, 2005 | MCL | Yes | No | — | 5% of samples | — | Archived | Nov 30, 2005 | — | |
| Oct 1, 2003 | Oct 31, 2003 | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 2003 | — | |
| Jul 1, 2003 | Jul 31, 2003 | MCL | Yes | No | — | 5% of samples | — | Archived | Jul 31, 2003 | — | |
| May 1, 1998 | May 31, 1998 | MR | No | Yes | — | 5% of samples | — | Archived | May 31, 1998 | — | |
| Dec 1, 1992 | Dec 31, 1992 | MR | No | Yes | — | 5% of samples | — | Archived | Dec 31, 1992 | — | |
| Oct 1, 1992 | Oct 31, 1992 | MR | No | Yes | — | 5% of samples | — | Archived | Oct 31, 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 | — | |
| — | — | — | 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.