WATERLOO, WI · Jefferson County

WATERLOO 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): WI1280115
System type: Community Water System
Population served: 3,520
Service connections: 1,303
Ownership: local government
Water source: groundwater (wells)

Violation history

Lead Service Line Replacement (LSLR)
Health-based
Lead and Copper Rule
January 1, 2018 – October 18, 2018
Resolved
Public Education
Health-based
Lead and Copper Rule
January 1, 2018 – January 16, 2018
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1993 – September 30, 1993
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1993 – August 25, 1993
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2018 – October 18, 2018	Lead Service Line Replacement (LSLR)	Lead and Copper Rule	Health-based	Resolved
January 1, 2018 – January 16, 2018	Public Education	Lead and Copper Rule	Health-based	Resolved
September 1, 1993 – September 30, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 1993 – August 25, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

January 5, 2018State Public Notification received45 linked violations
October 15, 1993State Compliance achieved1 linked violation
October 11, 1993State Public Notification received1 linked violation
October 4, 1993State Formal Notice of Violation issued1 linked violation
October 4, 1993State Violation/Reminder Notice1 linked violation
August 30, 1993State Public Notification received1 linked violation
August 25, 1993State Compliance achieved1 linked violation
August 20, 1993State Public Notification requested1 linked violation
August 20, 1993State Violation/Reminder Notice1 linked violation

Contact

SORENSON, BARRY

Phone not on record

WATERLOO, WI 53594-1459