DAYTON, TOWN OF
Wyoming — Community Water System — PWSID: WY5600202
System Information
| PWSID | WY5600202 |
| System Name | DAYTON, TOWN OF |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Wyoming |
| City | DAYTON |
| ZIP Code | 82836 |
| Address | P.O. Box 100 (119 3rd Ave) |
| Organization | KEPLEY, TRACY |
| Phone | 307-751-5640 |
Population & Service
| Population Served | 824 |
| Service Connections | 413 |
Drinking Water Violations (77)
This water system has 77 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, 2023 | Jul 31, 2023 | MR | No | No | — | — | — | Archived | Jul 31, 2023 | — | |
| Jul 1, 2023 | Jul 31, 2023 | MR | No | No | — | — | — | Archived | Jul 31, 2023 | — | |
| Jul 1, 2023 | Jul 31, 2023 | MR | No | No | — | — | — | Archived | Jul 31, 2023 | — | |
| May 1, 2023 | May 31, 2023 | MR | No | No | — | — | — | Archived | May 31, 2023 | — | |
| May 1, 2023 | May 31, 2023 | MR | No | No | — | — | — | Archived | May 31, 2023 | — | |
| May 1, 2023 | May 31, 2023 | MR | No | No | — | — | — | Archived | May 31, 2023 | — | |
| Apr 1, 2023 | Apr 30, 2023 | MR | No | No | — | — | — | Archived | Apr 30, 2023 | — | |
| Apr 1, 2023 | Apr 30, 2023 | MR | No | No | — | — | — | Archived | Apr 30, 2023 | — | |
| Apr 1, 2023 | Apr 30, 2023 | MR | No | No | — | — | — | Archived | Apr 30, 2023 | — | |
| Jan 1, 2014 | Mar 31, 2014 | MR | No | No | — | 0.060 mg/L | — | Resolved | Mar 31, 2014 | — | |
| Jan 1, 2014 | Mar 31, 2014 | MR | No | No | — | 0.080 mg/L | — | Resolved | Mar 31, 2014 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2012 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | No | — | 0.060 mg/L | — | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | No | — | 0.060 mg/L | — | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | No | — | 0.080 mg/L | — | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | No | — | 0.080 mg/L | — | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | No | — | 0.080 mg/L | — | Resolved | Mar 31, 2010 | — | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | No | — | 0.060 mg/L | — | Resolved | Mar 31, 2010 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.080 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.060 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Feb 1, 2009 | Feb 28, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2006 | Jul 31, 2006 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 2006 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.080 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.080 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.080 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.060 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.060 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.060 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2005 | — | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2005 | — | |
| Jan 1, 2004 | Mar 31, 2004 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Mar 31, 2004 | — | |
| Jun 1, 1999 | Jun 30, 1999 | TT | Yes | No | — | — | — | Archived | Jun 30, 1999 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1999 | — |
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.