JEFFERSON, WI · Jefferson County
JEFFERSON WATERWORKS 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 Wisconsin’s official records. Always confirm current status with Wisconsin before making decisions based on this information.
System facts
- System ID (PWSID)
- WI1280104
- System type
- Community Water System
- Population served
- 7,926
- Service connections
- 3,072
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Maximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 1993 – September 23, 1993
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
July 1, 1986 – September 30, 1986
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| September 1, 1993 – September 23, 1993 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| July 1, 1986 – September 30, 1986 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- October 14, 1993State Public Notification received1 linked violation
- September 23, 1993State Compliance achieved1 linked violation
- September 21, 1993State Violation/Reminder Notice1 linked violation
- September 21, 1993State Public Notification requested1 linked violation
- December 12, 1989State Compliance achievedgeneral compliance action — not tied to a specific violation on record
Contact
COPSEY, SARAH - JEFFERSON CITY CLERK
Phone not on record
JEFFERSON, WI 54549-1772