HYATTVILLE, WY · Big Horn County
HYATTVILLE S&I DISTRICT Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)
- WY5600209
- System type
- Community Water System
- Population served
- 66
- Service connections
- 71
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Monitoring, Routine (RTCR)
—Revised Total Coliform Rule
August 1, 2023 – August 31, 2023
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—Simazine
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Picloram
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Atrazine
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—CYANIDE
January 1, 2011 – December 31, 2013
ArchivedMonitoring, Regular
—Vinyl chloride
January 1, 2011 – December 31, 2013
ArchivedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2011 – December 31, 2013
ArchivedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2011 – December 31, 2013
ArchivedMonitoring, Regular
—Trichloroethylene
January 1, 2011 – December 31, 2013
ArchivedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2011 – December 31, 2013
ArchivedMonitoring, Regular
—Tetrachloroethylene
January 1, 2011 – December 31, 2013
ArchivedMonitoring, Regular
—Ethylbenzene
January 1, 2011 – December 31, 2013
ArchivedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2011 – December 31, 2013
ResolvedMonitoring, Regular
—Dalapon
January 1, 2011 – December 31, 2013
Resolved
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 |
|---|---|---|---|---|
| August 1, 2023 – August 31, 2023 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| January 1, 2013 – December 31, 2013 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | CYANIDE | — | Archived |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Vinyl chloride | — | Archived |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 1,2-Dichloroethane | — | Archived |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 1,2-Dichloropropane | — | Archived |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Trichloroethylene | — | Archived |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Archived |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Tetrachloroethylene | — | Archived |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Ethylbenzene | — | Archived |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2011 – December 31, 2013 | Monitoring, Regular | Dalapon | — | Resolved |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- September 11, 2023State Compliance achieved1 linked violation
- April 1, 2021State Violation/Reminder Notice1 linked violation
- January 19, 2021State Violation/Reminder Notice1 linked violation
- August 15, 2019State Violation/Reminder Notice1 linked violation
- July 29, 2019State Compliance achieved1 linked violation
- September 5, 2017State Compliance achieved1 linked violation
- August 7, 2014Federal Final Administrative Order issued99 linked violations
- June 3, 2014State Compliance achieved22 linked violations
- June 3, 2014State Compliance achieved27 linked violations
- June 3, 2014State Compliance achieved13 linked violations
Contact
SHIRRAN, LOIS
307-469-2333
HYATTVILLE, WY 82428