PEWAUKEE, WI · Waukesha County

PEWAUKEE VILLAGE WATERWORKS Water System

Current status

2 items on record are open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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): WI2680229
System type: Community Water System
Population served: 8,166
Service connections: 3,024
Ownership: local government
Water source: groundwater (wells)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
November 19, 2025
Unaddressed
Public Notification Violation for NPDWR Violation
—
Public Notice
September 30, 2025
Unaddressed
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2025 – June 30, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2024 – December 31, 2024
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2024 – September 30, 2024
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2023 – June 30, 2023
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1993 – October 31, 1993
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1993 – September 30, 1993
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
June 13, 1989 – June 12, 1993
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
June 1, 1986 – September 30, 1986
Resolved

Unaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
November 19, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
September 30, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
April 1, 2025 – June 30, 2025	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
October 1, 2024 – December 31, 2024	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
July 1, 2024 – September 30, 2024	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
April 1, 2023 – June 30, 2023	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
October 1, 1993 – October 31, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
September 1, 1993 – September 30, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
June 13, 1989 – June 12, 1993	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
June 1, 1986 – September 30, 1986	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved

Unaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

July 31, 2025State Formal Notice of Violation issued4 linked violations
July 31, 2025State Administrative/Compliance Order without penalty issued5 linked violations
February 13, 2025State Administrative/Compliance Order without penalty issued11 linked violations
January 29, 2025State Formal Notice of Violation issued11 linked violations
December 5, 2024State Formal Notice of Violation issued43 linked violations
August 19, 2024State Administrative/Compliance Order without penalty issued15 linked violations
December 28, 2023State Formal Notice of Violation issued17 linked violations
August 18, 2022State Administrative/Compliance Order without penalty issued46 linked violations
June 29, 2009State Public Notification issued63 linked violations
November 8, 1993State Public Notification received1 linked violation
October 28, 1993State Public Notification received1 linked violation

Contact

VILLAGE OF PEWAUKEE ADMINISTRATOR - HEISER, MATT

Phone not on record

PEWAUKEE, WI 53072