GALLATIN GATEWAY SCHOOL DIST 35
Montana — Non-Transient Non-Community — PWSID: MT0001288
System Information
| PWSID | MT0001288 |
| System Name | GALLATIN GATEWAY SCHOOL DIST 35 |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 08 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Mar 5, 1980 |
| Last Reported | Jan 5, 2026 |
Location & Contact
| State | Montana |
| City | GALLATIN GATEWAY |
| ZIP Code | 59730 |
| Address | PO Box 265 |
| Organization | HENDERSON, KELLY |
| Phone | 406-763-4915 |
Population & Service
| Population Served | 202 |
| Service Connections | 1 |
Drinking Water Violations (63)
This water system has 63 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, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jan 1, 2020 | Dec 31, 2022 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2022 | Synthetic Organic Chemicals |
| Jun 1, 2019 | Jun 30, 2019 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Jun 20, 2019 | Revised Total Coliform Rule |
| Jun 1, 2019 | Jun 30, 2019 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Jun 20, 2019 | Revised Total Coliform Rule |
| Jun 1, 2019 | Jun 30, 2019 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Jun 20, 2019 | Revised Total Coliform Rule |
| Jun 1, 2019 | Jun 30, 2019 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Jun 20, 2019 | Revised Total Coliform Rule |
| Oct 1, 2009 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 14, 2010 | Lead and Copper Rule |
| Oct 1, 2009 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 14, 2010 | Lead and Copper Rule |
| Oct 1, 2009 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 14, 2010 | Lead and Copper Rule |
| Oct 1, 2009 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 14, 2010 | Lead and Copper Rule |
| Sep 10, 2003 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 22, 2003 | Lead and Copper Rule |
| Sep 10, 2003 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 22, 2003 | Lead and Copper Rule |
| Sep 10, 2003 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 22, 2003 | Lead and Copper Rule |
| Jul 1, 2003 | Dec 31, 2003 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 22, 2003 | Lead and Copper Rule |
| Jul 1, 2003 | Dec 31, 2003 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 22, 2003 | Lead and Copper Rule |
| Jul 1, 2003 | Dec 31, 2003 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 22, 2003 | Lead and Copper Rule |
| Jul 1, 2003 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 22, 2003 | Lead and Copper Rule |
| Jul 1, 2003 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 22, 2003 | Lead and Copper Rule |
| Jul 1, 2003 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 22, 2003 | Lead and Copper Rule |
| Jan 1, 2003 | Jun 30, 2003 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2003 | Lead and Copper Rule |
| Jan 1, 2003 | Jun 30, 2003 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2003 | Lead and Copper Rule |
| Jan 1, 2003 | Jun 30, 2003 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2003 | Lead and Copper Rule |
| Oct 1, 2002 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 22, 2003 | Lead and Copper Rule |
| Oct 1, 2002 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 22, 2003 | Lead and Copper Rule |
| Oct 1, 2002 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 22, 2003 | Lead and Copper Rule |
| Dec 1, 2000 | Dec 31, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | Total Coliform Rule |
| Dec 1, 2000 | Dec 31, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | Total Coliform Rule |
| Dec 1, 2000 | Dec 31, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | Total Coliform Rule |
| Dec 1, 2000 | Dec 31, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | Total Coliform Rule |
| Dec 1, 2000 | Dec 31, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2000 | Total Coliform Rule |
| Nov 1, 1999 | Nov 30, 1999 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1999 | Total Coliform Rule |
| Nov 1, 1999 | Nov 30, 1999 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1999 | Total Coliform Rule |
| Sep 1, 1995 | Sep 30, 1995 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1995 | Total Coliform 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.