THERMOPOLIS, TOWN OF
Wyoming — Community Water System — PWSID: WY5600056
System Information
| PWSID | WY5600056 |
| System Name | THERMOPOLIS, TOWN OF |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Feb 13, 1979 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Wyoming |
| City | THERMOPOLIS |
| ZIP Code | 82443 |
| Address | P.O. Box 603 |
| Organization | SEILAFF, CHRISTOPHER |
| Phone | 307-864-2658 |
Population & Service
| Population Served | 2,775 |
| Service Connections | 1,630 |
Drinking Water Violations (29)
This water system has 29 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, 2011 | Jul 31, 2011 | TT | Yes | No | — | — | — | Resolved | Jul 31, 2011 | — | |
| Jul 1, 2011 | Jul 31, 2011 | TT | Yes | No | — | — | — | Resolved | Jul 31, 2011 | — | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | Yes | — | TT | — | Resolved | Sep 30, 2007 | — | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2007 | — | |
| Jul 1, 2007 | Sep 30, 2007 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | No | — | TT | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | No | — | TT | — | Resolved | Dec 31, 2007 | — | |
| Jul 1, 1994 | Sep 30, 1994 | MR | No | Yes | — | 10 mg/L | — | Archived | Sep 30, 1994 | — | |
| Jan 1, 1994 | Mar 31, 1994 | MR | No | Yes | — | 10 mg/L | — | Archived | Mar 31, 1994 | — | |
| Oct 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Archived | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Archived | Dec 31, 1993 | — | |
| May 1, 1982 | Apr 30, 1983 | MR | No | Yes | — | 0.002 mg/L | — | Archived | Apr 30, 1983 | — | |
| May 1, 1982 | Apr 30, 1983 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Apr 30, 1983 | — | |
| May 1, 1982 | Apr 30, 1983 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Apr 30, 1983 | — | |
| May 1, 1982 | Apr 30, 1983 | MR | No | Yes | — | 2 mg/L | — | Archived | Apr 30, 1983 | — | |
| May 1, 1982 | Apr 30, 1983 | MR | No | Yes | — | 0.1 mg/L | — | Archived | Apr 30, 1983 | — | |
| May 1, 1982 | Apr 30, 1983 | MR | No | Yes | — | 10 mg/L | — | Archived | Apr 30, 1983 | — | |
| May 1, 1982 | Apr 30, 1983 | MR | No | Yes | — | 0.05 mg/L | — | Archived | Apr 30, 1983 | — | |
| May 1, 1982 | Apr 30, 1983 | MR | No | Yes | — | 0.010 mg/L | — | Archived | Apr 30, 1983 | — | |
| May 1, 1981 | May 31, 1981 | MR | No | Yes | — | 0.0002 mg/L | — | Archived | May 31, 1981 | — | |
| May 1, 1981 | May 31, 1981 | MR | No | Yes | — | 0.003 mg/L | — | Archived | May 31, 1981 | — | |
| May 1, 1981 | May 31, 1981 | MR | No | Yes | — | 0.07 mg/L | — | Archived | May 31, 1981 | — | |
| May 1, 1981 | May 31, 1981 | MR | No | Yes | — | 0.04 mg/L | — | Archived | May 31, 1981 | — | |
| May 1, 1981 | May 31, 1981 | MR | No | Yes | — | 0.05 mg/L | — | Archived | May 31, 1981 | — | |
| May 1, 1981 | May 31, 1981 | MR | No | Yes | — | 0.002 mg/L | — | Archived | May 31, 1981 | — | |
| Jul 1, 1976 | Jun 30, 1980 | MR | No | No | — | 5 pCi/L | — | Archived | Jun 30, 1980 | — | |
| Jul 1, 1976 | Jun 30, 1980 | MR | No | No | — | 15 pCi/L | — | Archived | Jun 30, 1980 | — | |
| — | — | — | 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.