YELLOWTAIL DAM POWERPLANT AND VISITOR CE
Montana - Transient Non-Community - PWSID: MT0000103
System Information
| PWSID | MT0000103 |
| System Name | YELLOWTAIL DAM POWERPLANT AND VISITOR CE |
| System Type | Transient Non-Community |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | YELLOWTAIL |
| ZIP Code | 59035 |
| Address | PO BOX 7551 |
| Organization | BYRNES, MICHAEL |
| Phone | 406-666-3201 |
Population & Service
| Population Served | 48 |
| Service Connections | 3 |
Drinking Water Violations (73)
This water system has 73 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, 2022 | Jun 30, 2022 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2022 | - | |
| Jun 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2022 | - | |
| Jun 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2022 | - | |
| Jun 1, 2022 | Jun 30, 2022 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2022 | - | |
| May 1, 2022 | May 31, 2022 | MR | No | No | - | - | - | Resolved | May 31, 2022 | - | |
| May 1, 2022 | May 31, 2022 | MR | No | No | - | - | - | Resolved | May 31, 2022 | - | |
| May 1, 2022 | May 31, 2022 | MR | No | No | - | - | - | Resolved | May 31, 2022 | - | |
| May 1, 2022 | May 31, 2022 | MR | No | No | - | - | - | Resolved | May 31, 2022 | - | |
| Apr 1, 2022 | Apr 30, 2022 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2022 | - | |
| Apr 1, 2022 | Apr 30, 2022 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2022 | - | |
| Apr 1, 2022 | Apr 30, 2022 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2022 | - | |
| Apr 1, 2022 | Apr 30, 2022 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2022 | - | |
| Mar 1, 2022 | Mar 31, 2022 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2022 | - | |
| Mar 1, 2022 | Mar 31, 2022 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2022 | - | |
| Mar 1, 2022 | Mar 31, 2022 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2022 | - | |
| Mar 1, 2022 | Mar 31, 2022 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2022 | - | |
| Feb 1, 2019 | Feb 28, 2019 | TT | Yes | No | - | - | - | Resolved | Feb 28, 2019 | - | |
| Feb 1, 2019 | Feb 28, 2019 | TT | Yes | No | - | - | - | Resolved | Feb 28, 2019 | - | |
| Feb 1, 2019 | Feb 28, 2019 | TT | Yes | No | - | - | - | Resolved | Feb 28, 2019 | - | |
| Jan 1, 2019 | Jan 31, 2019 | TT | Yes | No | - | - | - | Resolved | Jan 31, 2019 | - | |
| Jan 1, 2019 | Jan 31, 2019 | TT | Yes | No | - | - | - | Resolved | Jan 31, 2019 | - | |
| Jan 1, 2019 | Jan 31, 2019 | TT | Yes | No | - | - | - | Resolved | Jan 31, 2019 | - | |
| Dec 1, 2018 | Dec 31, 2018 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2018 | - | |
| Dec 1, 2018 | Dec 31, 2018 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2018 | - | |
| Dec 1, 2018 | Dec 31, 2018 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2018 | - | |
| Dec 1, 2018 | Dec 31, 2018 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2018 | - | |
| Dec 1, 2018 | Dec 31, 2018 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2018 | - | |
| Dec 1, 2018 | Dec 31, 2018 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2018 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2013 | - | |
| Dec 1, 2010 | Dec 31, 2010 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2010 | - | |
| Nov 1, 2006 | Nov 30, 2006 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2006 | - | |
| Nov 1, 2006 | Nov 30, 2006 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2006 | - | |
| Nov 1, 2006 | Nov 30, 2006 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MR | No | No | - | - | - | Resolved | Jun 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MR | No | No | - | - | - | Resolved | Jun 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MR | No | No | - | - | - | Resolved | Jun 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MR | No | No | - | - | - | Resolved | Jun 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | TT | Yes | No | - | - | - | Resolved | Jun 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | TT | Yes | No | - | - | - | Resolved | Jun 30, 2006 | - |
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.