BILLINGS, MT · Yellowstone County
PIONEER WATER SERVICE 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 Montana’s official records. Always confirm current status with Montana before making decisions based on this information.
System facts
- System ID (PWSID)
- MT0004226
- System type
- Community Water System
- Population served
- 900
- Service connections
- 1
- Ownership
- privately owned
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
No violations on record for this system.
Enforcement actions
- September 23, 2025State Compliance achieved1 linked violation
- February 4, 2025State Public Notification requested1 linked violation
- February 4, 2025State Violation/Reminder Notice1 linked violation
- June 22, 2022State Compliance achieved1 linked violation
- January 7, 2022State Compliance achieved1 linked violation
- January 4, 2022State Violation/Reminder Notice1 linked violation
- July 19, 2021State Violation/Reminder Notice1 linked violation
- September 29, 2020State Compliance achieved1 linked violation
- July 20, 2020State Violation/Reminder Notice1 linked violation
- July 23, 2019State Compliance achieved1 linked violation
- July 17, 2019State Violation/Reminder Notice1 linked violation
- October 4, 2018State Public Notification received1 linked violation
- July 31, 2018State Compliance achieved1 linked violation
- July 16, 2018State Violation/Reminder Notice1 linked violation
- July 16, 2018State Public Notification requested1 linked violation
- August 21, 2017State Compliance achieved1 linked violation
- August 16, 2017State Violation/Reminder Notice1 linked violation
- August 16, 2017State Public Notification requested1 linked violation
- November 23, 2012State Compliance achieved2 linked violations
- November 14, 2012State Violation/Reminder Notice1 linked violation
- July 12, 2012State Violation/Reminder Notice1 linked violation
- July 12, 2012State Public Notification requested1 linked violation
- October 20, 2010State Violation/Reminder Notice1 linked violation
- October 20, 2010State Public Notification requested1 linked violation
- October 4, 2010State Compliance achieved1 linked violation
- August 12, 2009State Compliance achieved3 linked violations
- July 13, 2009State Compliance achieved4 linked violations
- November 17, 2008State Public Notification requested2 linked violations
- November 7, 2008State no additional Formal Action needed3 linked violations
- October 22, 2008State Compliance achieved1 linked violation
- February 5, 2007State Violation/Reminder Notice1 linked violation
- June 6, 2006State Public Notification received1 linked violation
- April 18, 2006State Violation/Reminder Notice1 linked violation
- April 18, 2006State Public Notification requested1 linked violation
- September 21, 2005State Compliance achieved49 linked violations
- February 5, 2004State Compliance achieved2 linked violations
Contact
LORENZ, CHAD A
406-252-8860
BILLINGS, MT 59101