ANGEL ISLAND SUBDIVISION
Montana — Community Water System — PWSID: MT0000582
System Information
| PWSID | MT0000582 |
| System Name | ANGEL ISLAND SUBDIVISION |
| 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 | TROY |
| ZIP Code | 59935 |
| Address | PO BOX 595 |
| Organization | ANGEL ISLAND ASSOCIATION |
| Phone | 406-295-5259 |
Population & Service
| Population Served | 150 |
| Service Connections | 184 |
Drinking Water Violations (8)
This water system has 8 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, 2003 | Jun 30, 2003 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2003 | Total Coliform Rule |
| Jun 1, 2003 | Jun 30, 2003 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2003 | Total Coliform Rule |
| Jun 1, 2003 | Jun 30, 2003 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2003 | Total Coliform Rule |
| Jan 1, 1999 | Dec 31, 2001 | Beryllium, Total | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2001 | Inorganic Chemicals |
| Jan 1, 1999 | Dec 31, 2001 | Beryllium, Total | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2001 | Inorganic Chemicals |
| Jan 1, 1999 | Dec 31, 2001 | Beryllium, Total | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2001 | Inorganic Chemicals |
| Jan 1, 1999 | Dec 31, 2001 | Beryllium, Total | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2001 | Inorganic Chemicals |
| Jan 1, 1996 | Dec 31, 1996 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1996 | Nitrate 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.