Is DE PERE WATERWORKS SA 1 required to publish a Consumer Confidence Report?

Yes. DE PERE WATERWORKS SA 1 is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is DE PERE WATERWORKS SA 1’s next Consumer Confidence Report due?

DE PERE WATERWORKS SA 1’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

DE PERE, WI · Brown County

DE PERE WATERWORKS SA 1 Water System

Consumer Confidence Report status

DE PERE WATERWORKS SA 1 must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for DE PERE WATERWORKS SA 1.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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): WI4050453
System type: Community Water System
Population served: 25,660
Service connections: 9,503
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

DE PERE WATERWORKS SA 1 is one of 87 community water systems in Wisconsin in the 10,001 to 100,000 people size category, serving 25,660 people from surface water.

As of August 1, 2026, its federal record holds 2 entries between 1978 and 1987, all of which EPA lists as closed. Nothing has been added since 1987.

None of the 2 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Radionuclides and Revised Rad Rule and inorganic chemicals.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
September 16, 1987 – September 15, 1991
Archived
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
October 31, 1978 – October 30, 1979
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
September 16, 1987 – September 15, 1991	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
October 31, 1978 – October 30, 1979	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

October 14, 2015State Compliance achieved3 linked violations
September 14, 2015State Public Notification requested3 linked violations
June 30, 2010State Public Notification received7 linked violations
August 14, 2007State Compliance achieved4 linked violations
August 14, 2007State Compliance achieved3 linked violations
August 14, 2007State Compliance achieved3 linked violations
August 14, 2007State Compliance achieved2 linked violations
August 14, 2007State Compliance achieved3 linked violations
December 30, 2006State Public Notification received3 linked violations
December 30, 2006State Public Notification received1 linked violation
October 2, 2006State Public Notification received1 linked violation
October 2, 2006State Public Notification received3 linked violations
October 2, 2006State Public Notification received2 linked violations
June 15, 2006State Public Notification received13 linked violations
June 15, 2006State Public Notification received7 linked violations
June 15, 2006State Public Notification received14 linked violations
April 6, 2006State Public Notification received8 linked violations
April 6, 2006State Public Notification received8 linked violations
April 6, 2006State Public Notification received11 linked violations
October 30, 2005State Public Notification received6 linked violations
July 6, 2005State Public Notification received1 linked violation
July 6, 2005State Public Notification received5 linked violations
June 30, 2005State Public Notification received2 linked violations
April 1, 2005State Public Notification received8 linked violations
April 1, 2005State Public Notification received6 linked violations
April 1, 2005State Public Notification received7 linked violations
January 6, 2005State Public Notification received5 linked violations
January 6, 2005State Public Notification received1 linked violation
January 6, 2005State Public Notification received3 linked violations
January 6, 2005State Public Notification received3 linked violations
October 6, 2004State Public Notification received2 linked violations
October 6, 2004State Public Notification received4 linked violations
October 6, 2004State Public Notification received4 linked violations
July 7, 2004State Public Notification received6 linked violations
April 2, 2004State Public Notification received3 linked violations
April 2, 2004State Public Notification received6 linked violations
January 5, 2004State Public Notification received5 linked violations
January 5, 2004State Public Notification received3 linked violations
October 2, 2003State Public Notification received5 linked violations
October 2, 2003State Public Notification received5 linked violations
October 2, 2003State Public Notification received2 linked violations
July 8, 2003State Public Notification received9 linked violations
July 8, 2003State Public Notification received6 linked violations
October 2, 2002State Public Notification received86 linked violations

Common questions

Is DE PERE WATERWORKS SA 1 required to publish a Consumer Confidence Report?: Yes. DE PERE WATERWORKS SA 1 is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is DE PERE WATERWORKS SA 1’s next Consumer Confidence Report due?: DE PERE WATERWORKS SA 1’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DE PERE WATERWORKS SA 1 have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for DE PERE WATERWORKS SA 1.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

DANEN, CAREY - CLERK

Phone not on record

DE PERE, WI 54115-2593