MAPLE FALLS WATER COOP
Washington — Community Water System — PWSID: WA5351100
System Information
| PWSID | WA5351100 |
| System Name | MAPLE FALLS WATER COOP |
| 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 | MAPLE FALLS |
| ZIP Code | 98266 |
| Address | PO BOX 606 |
| Organization | MAPLE FALLS WATER COOP |
| Phone | — |
Population & Service
| Population Served | 222 |
| Service Connections | 92 |
Drinking Water Violations (217)
This water system has 217 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2022 | Oct 31, 2022 | MON | No | Yes | — | — | — | Resolved | Oct 31, 2022 | — | |
| Jul 1, 2022 | — | Other | No | No | — | — | — | Resolved | Sep 29, 2022 | — | |
| Sep 1, 2017 | Sep 30, 2017 | MON | No | Yes | — | — | — | Resolved | Sep 30, 2017 | — | |
| Jul 1, 2016 | — | Other | No | No | — | — | — | Resolved | Nov 10, 2016 | — | |
| Jul 1, 2015 | — | Other | No | No | — | — | — | Resolved | Sep 24, 2015 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jul 1, 2013 | — | Other | No | No | — | — | — | Resolved | Oct 23, 2013 | — | |
| Jul 1, 2011 | — | Other | No | No | — | — | — | Resolved | Nov 10, 2011 | — | |
| Jul 1, 2010 | — | Other | No | No | — | — | — | Resolved | Nov 23, 2010 | — | |
| Jan 1, 2010 | Dec 31, 2010 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Jan 1, 2009 | — | MR | No | No | — | TT | — | Resolved | Dec 31, 2009 | — | |
| Jan 1, 2009 | — | MR | No | No | — | TT | — | Resolved | Dec 31, 2009 | — | |
| Jan 1, 2009 | — | MR | No | No | — | TT | — | Resolved | Dec 31, 2009 | — | |
| Jan 1, 2009 | — | MR | No | No | — | TT | — | Resolved | Dec 31, 2009 | — | |
| Jan 1, 2009 | — | MR | No | No | — | TT | — | Resolved | Dec 31, 2009 | — | |
| Jan 1, 2009 | — | MR | No | No | — | TT | — | Resolved | Dec 31, 2009 | — | |
| Jan 1, 2009 | — | MR | No | No | — | TT | — | Resolved | Dec 31, 2009 | — | |
| Jan 1, 2009 | — | MR | No | No | — | TT | — | Resolved | Dec 31, 2009 | — | |
| Jan 1, 2009 | — | MR | No | No | — | TT | — | Resolved | Dec 31, 2009 | — | |
| Jan 1, 2009 | — | MR | No | No | — | TT | — | Resolved | Dec 31, 2009 | — | |
| Jan 1, 2009 | — | MR | No | No | — | TT | — | Resolved | Dec 31, 2009 | — | |
| 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 | — |
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.