UPPER WESTSHORE SCHOOL DIST 33 UNAPPROV
Montana - Non-Transient Non-Community - PWSID: MT0001001
System Information
| PWSID | MT0001001 |
| System Name | UPPER WESTSHORE SCHOOL DIST 33 UNAPPROV |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Non-Inventory |
| Owner Type | Federal |
| EPA Region | 08 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Mar 5, 1980 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | CAYTON |
| ZIP Code | 59914 |
| Address | PO BOX 15 |
| Organization | FERGUSON, JIM |
| Phone | 406-849-5959 |
Population & Service
| Population Served | 46 |
| Service Connections | 1 |
Drinking Water Violations (309)
This water system has 309 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, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2007 | - | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2007 | - | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2007 | - | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2007 | - | |
| Jul 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Apr 9, 2008 | - | |
| Jul 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Apr 9, 2008 | - | |
| Jul 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Apr 9, 2008 | - | |
| Jul 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Apr 9, 2008 | - | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2007 | - | |
| Jun 1, 2007 | Jun 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2007 | - | |
| Jun 1, 2007 | Jun 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2007 | - | |
| Jun 1, 2007 | Jun 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2007 | - | |
| Jun 1, 2007 | Jun 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .271 MG/L | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .271 MG/L | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .271 MG/L | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .271 MG/L | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .271 MG/L | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .271 MG/L | 0.010 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | .48 MG/L | 0.010 mg/L | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.005 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.