DAYTON, WY · Sheridan County
DAYTON, TOWN OF Water System
Consumer Confidence Report status
DAYTON, TOWN OF must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for DAYTON, TOWN OF.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Wyoming’s official records. Always confirm current status with Wyoming before making decisions based on this information.
System facts
- System ID (PWSID)
- WY5600202
- System type
- Community Water System
- Population served
- 824
- Service connections
- 413
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
DAYTON, TOWN OF is one of 73 community water systems in Wyoming in the 501 to 3,300 people size category, serving 824 people from surface water.
As of August 1, 2026, its federal record holds 3 entries between 1976 and 2014, all of which EPA lists as closed. Nothing has been added since 2014.
All 3 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 2 Disinfectants and Disinfection Byproducts Rule, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Radionuclides and Revised Rad Rule.
Violation history
Monitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2014 – March 31, 2014
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
April 1, 2012 – June 30, 2012
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
July 1, 1976 – June 30, 1980
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2014 – March 31, 2014 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| April 1, 2012 – June 30, 2012 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| July 1, 1976 – June 30, 1980 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- March 12, 2025State Public Notification requested8 linked violations
- March 10, 2025State Violation/Reminder Notice6 linked violations
- August 19, 2014State Compliance achieved8 linked violations
- July 23, 2010State Compliance achieved4 linked violations
- July 27, 2007State Compliance achieved3 linked violations
- March 9, 2006State Violation/Reminder Notice5 linked violations
- November 26, 2005State Violation/Reminder Notice10 linked violations
Common questions
Is DAYTON, TOWN OF required to publish a Consumer Confidence Report?
- Yes. DAYTON, TOWN OF is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is DAYTON, TOWN OF’s next Consumer Confidence Report due?
- DAYTON, TOWN OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DAYTON, TOWN OF have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for DAYTON, TOWN OF.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
GRAY, CORBY
307-461-7308
DAYTON, WY 82836