Is ELKHORN WATERWORKS required to publish a Consumer Confidence Report?

Yes. ELKHORN 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 ELKHORN WATERWORKS’s next Consumer Confidence Report due?

ELKHORN 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.

ELKHORN, WI · Walworth County

ELKHORN WATERWORKS Water System

Consumer Confidence Report status

ELKHORN 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 ELKHORN 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): WI2650062
System type: Community Water System
Population served: 10,317
Service connections: 3,821
Ownership: local government
Water source: groundwater (wells)

ELKHORN WATERWORKS is one of 87 community water systems in Wisconsin in the 10,001 to 100,000 people size category, serving 10,317 people from groundwater.

As of August 1, 2026, its federal record holds 15 entries between 1991 and 2021, all of which EPA lists as closed. Nothing has been added since 2021.

Of the 15, 9 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 Radionuclides and Revised Rad Rule, and the Consumer Confidence Rule.

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
November 1, 2021 – March 21, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2021 – March 31, 2021
Resolved
Lead Service Line Replacement (LSLR)
Health-based
Lead and Copper Rule
November 1, 2020 – September 21, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Xylenes, Total
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 2010 – June 30, 2010
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – July 19, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2005 – October 14, 2005
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 1998 – December 31, 1998
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1998 – December 31, 1998
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1998 – December 31, 1998
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1998 – December 31, 1998
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
February 1, 1991 – February 28, 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
November 1, 2021 – March 21, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2021 – March 31, 2021	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
November 1, 2020 – September 21, 2022	Lead Service Line Replacement (LSLR)	Lead and Copper Rule	Health-based	Resolved
October 1, 2020 – December 31, 2020	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	Xylenes, Total	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
July 1, 2006 – July 19, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2005 – October 14, 2005	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
February 1, 1991 – February 28, 1991	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived

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

Enforcement actions

March 21, 2022State Compliance achieved3 linked violations
March 17, 2022State Violation/Reminder Notice6 linked violations
March 17, 2022State Violation/Reminder Notice8 linked violations
October 20, 2021State Compliance achieved4 linked violations
June 16, 2021State Public Notification received5 linked violations
June 16, 2021State Public Notification received3 linked violations
April 10, 2021State Formal Notice of Violation issued4 linked violations
April 10, 2021State Public Notification requested4 linked violations
April 10, 2021State Bilateral Compliance Agreement signed6 linked violations
January 28, 2021State Public Notification requested15 linked violations
January 28, 2021State Compliance Meeting conducted19 linked violations
July 27, 2016State Compliance achieved28 linked violations
October 14, 2005Federal Compliance achieved1 linked violation

Common questions

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

PEREZ, REBECA - CITY CLERK

Phone not on record

ELKHORN, WI 53121