YNP-OLD FAITHFUL
Wyoming - Community Water System - PWSID: WY5680085
System Information
| PWSID | WY5680085 |
| System Name | YNP-OLD FAITHFUL |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 2, 1981 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Wyoming |
| City | YELLOWSTONE |
| ZIP Code | 82190 |
| Address | P.O. Box 168 |
| Organization | RAUCH, SEAN |
| Phone | 307-250-2403 |
Population & Service
| Population Served | 7,675 |
| Service Connections | 153 |
Drinking Water Violations (35)
This water system has 35 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 1, 2024 | - | TT | Yes | No | - | TT | - | Resolved | Mar 6, 2025 | - | |
| Jul 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Mar 6, 2025 | - | |
| Jun 1, 2024 | - | TT | Yes | No | - | TT | - | Resolved | May 1, 2025 | - | |
| Mar 1, 2024 | - | TT | Yes | No | - | TT | - | Resolved | May 1, 2025 | - | |
| Dec 30, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 3, 2024 | - | |
| Nov 30, 2023 | - | TT | Yes | No | - | TT | - | Resolved | Mar 10, 2025 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | May 1, 2025 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | .012 MG/L | 0.010 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | .012 MG/L | 0.010 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | May 1, 2025 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | .012 MG/L | 0.010 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | .012 MG/L | 0.010 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Jun 30, 2023 | - | |
| Sep 17, 2022 | - | TT | Yes | No | - | - | - | Resolved | Oct 16, 2024 | - | |
| Sep 17, 2022 | - | TT | Yes | No | - | - | - | Resolved | Oct 16, 2024 | - | |
| Jun 1, 2022 | Jun 30, 2022 | TT | Yes | No | - | - | - | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Apr 30, 2022 | MON | No | No | - | - | - | Resolved | Apr 30, 2022 | - | |
| Apr 1, 2022 | Apr 30, 2022 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2022 | - | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2020 | - | |
| Jan 1, 2016 | Mar 31, 2016 | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2016 | - | |
| Jan 1, 2016 | Mar 31, 2016 | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2016 | - | |
| Jan 1, 2016 | Mar 31, 2016 | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2016 | - | |
| Jan 1, 2005 | Mar 31, 2005 | MR | No | Yes | - | TT | - | Resolved | Mar 31, 2005 | - | |
| Jan 1, 2005 | Mar 31, 2005 | MR | No | Yes | - | TT | - | Resolved | Mar 31, 2005 | - | |
| Jan 1, 2005 | Mar 31, 2005 | MR | No | Yes | - | TT | - | Resolved | Mar 31, 2005 | - | |
| Aug 1, 1995 | Aug 31, 1995 | MR | No | No | - | 5% of samples | - | Archived | Aug 31, 1995 | - | |
| Oct 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 1993 | - | |
| Jul 1, 1993 | Jul 31, 1993 | TT | Yes | No | - | - | - | Archived | Jul 31, 1993 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.