Is FOND DU LAC WATERWORKS required to publish a Consumer Confidence Report?

Yes. FOND DU LAC WATERWORKS 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 FOND DU LAC WATERWORKS’s next Consumer Confidence Report due?

FOND DU LAC WATERWORKS’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.

WI · Fond du Lac County

FOND DU LAC WATERWORKS Water System

Consumer Confidence Report status

FOND DU LAC WATERWORKS 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 FOND DU LAC WATERWORKS.

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): WI4200469
System type: Community Water System
Population served: 44,678
Service connections: 16,049
Ownership: local government
Water source: groundwater (wells)

FOND DU LAC WATERWORKS is among the 15 largest community water systems in Wisconsin, serving 44,678 people from groundwater.

As of August 1, 2026, its federal record holds 24 entries between 1987 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.

Of the 24, 21 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, the Consumer Confidence Rule, and inorganic chemicals.

Violation history

Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2019 – July 11, 2019
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2009 – March 31, 2009
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 20, 2008 – February 22, 2011
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
July 1, 2000 – September 30, 2000
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Benzene
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Toluene
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 1993 – December 31, 1993
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 7, 1987 – October 6, 1991
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2019 – July 11, 2019	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Arsenic	—	Resolved
October 20, 2008 – February 22, 2011	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2000 – September 30, 2000	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Benzene	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Toluene	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Xylenes, Total	—	Resolved
October 7, 1987 – October 6, 1991	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

June 12, 2025State Compliance achieved1 linked violation
June 12, 2025State Public Notification received1 linked violation
March 25, 2025State Compliance achieved1 linked violation
August 2, 2019State Violation/Reminder Notice2 linked violations
July 11, 2019State Compliance achieved1 linked violation
July 11, 2019State Compliance achieved2 linked violations
June 22, 2016State Other2 linked violations
June 21, 2016State Other2 linked violations
June 16, 2016State Public Notification requested19 linked violations
June 16, 2016State Violation/Reminder Notice2 linked violations
June 6, 2016State Public Notification received2 linked violations
July 28, 2015State Violation/Reminder Notice5 linked violations
June 30, 2014State Public Notification received2 linked violations
June 30, 2014State Public Notification received2 linked violations
May 19, 2014State Public Notification requested2 linked violations
May 14, 2014State Compliance achieved2 linked violations
December 2, 2013State Public Notification requested9 linked violations
December 12, 2011State Compliance achieved1 linked violation
December 12, 2011State Compliance achieved1 linked violation
October 31, 2011State Other1 linked violation
February 22, 2011State Intentional no-action28 linked violations
January 15, 2010State Compliance achieved32 linked violations
June 17, 2008State Other4 linked violations
February 28, 2008State Other12 linked violations
February 28, 2008State Other19 linked violations
February 28, 2008State Other15 linked violations
December 2, 2003State Administrative/Compliance Order without penalty issued46 linked violations
April 4, 1994State Compliance achieved21 linked violations

Common questions

Is FOND DU LAC WATERWORKS required to publish a Consumer Confidence Report?: Yes. FOND DU LAC WATERWORKS 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 FOND DU LAC WATERWORKS’s next Consumer Confidence Report due?: FOND DU LAC WATERWORKS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does FOND DU LAC WATERWORKS have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for FOND DU LAC WATERWORKS.
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

Not on record

Phone not on record