OHANAPECOSH
Washington — Transient Non-Community — PWSID: WA53NP670
System Information
| PWSID | WA53NP670 |
| System Name | OHANAPECOSH |
| System Type | Transient Non-Community |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 16, 1985 |
| Last Reported | Dec 11, 2025 |
Location & Contact
| State | Washington |
| City | Ashford |
| ZIP Code | 98304 |
| Address | 55210 238th Ave E |
| Organization | OHANAPECOSH |
| Phone | — |
Population & Service
| Population Served | 2,092 |
| Service Connections | 21 |
Drinking Water Violations (17)
This water system has 17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2007 | Jun 30, 2007 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Archived | Jun 30, 2007 | Surface Water Treatment Rule |
| May 1, 2007 | May 31, 2007 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | May 31, 2007 | Surface Water Treatment Rule |
| May 1, 2007 | May 31, 2007 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | May 31, 2007 | Surface Water Treatment Rule |
| Apr 1, 2007 | Apr 30, 2007 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Apr 30, 2007 | Surface Water Treatment Rule |
| Apr 1, 2007 | Apr 30, 2007 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Apr 30, 2007 | Surface Water Treatment Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2004 | Dec 31, 2004 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Archived | Dec 31, 2004 | Nitrate Rule |
| Jan 1, 1995 | Jan 31, 1995 | Surface Water Treatment Rule | MR | No | Yes | — | — | — | Archived | Jan 31, 1995 | Surface Water Treatment Rule |
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.