NORTHWOODS WATER SYSTEM COOP INC
Montana — Community Water System — PWSID: MT0001736
System Information
| PWSID | MT0001736 |
| System Name | NORTHWOODS WATER SYSTEM COOP INC |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 5, 1980 |
| Last Reported | Jan 5, 2026 |
Location & Contact
| State | Montana |
| City | COLUMBIA FALLS |
| ZIP Code | 59912 |
| Address | 305 DUNWOODY LN |
| Organization | PIRRIE, GAVIN G |
| Phone | 406-871-3368 |
Population & Service
| Population Served | 135 |
| Service Connections | 47 |
Drinking Water Violations (21)
This water system has 21 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 7, 2015 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Oct 30, 2017 | Ground Water Rule |
| Jul 7, 2015 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Oct 30, 2017 | Ground Water Rule |
| Jul 7, 2015 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Oct 30, 2017 | Ground Water Rule |
| Jan 1, 2011 | Dec 31, 2013 | Asbestos | MR | No | Yes | — | 7 MFL | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2011 | Dec 31, 2013 | Asbestos | MR | No | Yes | — | 7 MFL | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2011 | Dec 31, 2013 | Asbestos | MR | No | Yes | — | 7 MFL | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Jan 1, 2011 | Dec 31, 2013 | Asbestos | MR | No | Yes | — | 7 MFL | — | Resolved | Dec 31, 2013 | Inorganic Chemicals |
| Aug 1, 2000 | Aug 31, 2000 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2000 | Total Coliform Rule |
| Aug 1, 2000 | Aug 31, 2000 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2000 | Total Coliform Rule |
| Aug 1, 2000 | Aug 31, 2000 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2000 | Total Coliform Rule |
| Aug 1, 2000 | Aug 31, 2000 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2000 | Total Coliform Rule |
| Jul 1, 1997 | Jul 31, 1997 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 1997 | Total Coliform Rule |
| Oct 1, 1996 | Oct 31, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 1996 | Total Coliform Rule |
| Oct 1, 1996 | Oct 31, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 1996 | Total Coliform Rule |
| Aug 1, 1995 | Aug 31, 1995 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 1995 | Total Coliform Rule |
| Aug 1, 1995 | Aug 31, 1995 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 1995 | Total Coliform Rule |
| Jan 1, 1994 | Dec 31, 1994 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1994 | Nitrate Rule |
| Jul 1, 1993 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 3, 1996 | Lead and Copper Rule |
| Jul 1, 1993 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 3, 1996 | Lead and Copper Rule |
| Jan 1, 1993 | Dec 31, 1993 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1993 | Nitrate Rule |
| Oct 1, 1983 | Sep 30, 1984 | Gross Alpha, Excl. Radon and U | MR | No | Yes | — | 15 pCi/L | — | Archived | Sep 30, 1984 | Radionuclides and Revised Rad 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.