Is OAK PARK COMMUNITY required to publish a Consumer Confidence Report?

Yes. OAK PARK COMMUNITY 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 OAK PARK COMMUNITY’s next Consumer Confidence Report due?

OAK PARK COMMUNITY’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.

DICKEYVILLE, WI · Grant County

OAK PARK COMMUNITY Water System

Consumer Confidence Report status

OAK PARK COMMUNITY 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 OAK PARK COMMUNITY.

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): WI1220095
System type: Community Water System
Population served: 90
Service connections: 49
Ownership: privately owned
Water source: groundwater (wells)

OAK PARK COMMUNITY is one of 1,289 community water systems in Wisconsin in the 500 or fewer people size category, serving 90 people from groundwater.

As of August 1, 2026, its federal record holds 15 entries between 2011 and 2024, all of which EPA lists as closed.

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 the Public Notice Rule and Revised PN Rule, the Groundwater Rule, and the Total Coliform Rules.

Violation history

LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – October 31, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2022 – August 13, 2022
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – August 13, 2022
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
December 22, 2021 – December 29, 2021
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
December 22, 2021 – April 24, 2023
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
October 24, 2021 – November 22, 2021
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
May 1, 2021 – May 31, 2021
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
November 18, 2020 – November 23, 2020
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2016 – April 7, 2016
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2013 – January 8, 2018
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 1, 2013 – January 8, 2018
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2013 – September 30, 2013
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2013 – June 30, 2013
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2011 – January 8, 2018
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2011 – December 31, 2011
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
October 17, 2024 – October 31, 2024	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Resolved
July 1, 2022 – August 13, 2022	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2022 – August 13, 2022	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
December 22, 2021 – December 29, 2021	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
December 22, 2021 – April 24, 2023	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 24, 2021 – November 22, 2021	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
May 1, 2021 – May 31, 2021	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
November 18, 2020 – November 23, 2020	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
January 1, 2016 – April 7, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2013 – January 8, 2018	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2013 – January 8, 2018	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2013 – September 30, 2013	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2011 – January 8, 2018	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2011 – December 31, 2011	Monitoring, Regular	Nitrate	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

October 31, 2024State Compliance achieved8 linked violations
January 19, 2024State Violation/Reminder Notice2 linked violations
December 19, 2023State Violation/Reminder Notice2 linked violations
December 19, 2023State Public Notification received1 linked violation
December 14, 2023State Compliance achieved2 linked violations
November 16, 2023State Public Notification received5 linked violations
October 24, 2023State Compliance achieved5 linked violations
December 8, 2022State Public Notification requested4 linked violations
August 8, 2022State Violation/Reminder Notice3 linked violations
February 8, 2022State Public Notification requested3 linked violations
February 8, 2022State Violation/Reminder Notice4 linked violations
November 22, 2021State Compliance achieved4 linked violations
July 1, 2021State Public Notification received2 linked violations
December 1, 2020State Public Notification received24 linked violations
May 6, 2020State Public Notification requested3 linked violations
May 6, 2020State Violation/Reminder Notice4 linked violations
January 8, 2018State Compliance achieved3 linked violations
December 4, 2013State Public Notification requested7 linked violations
July 19, 2011State Violation/Reminder Notice11 linked violations

Common questions

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

BERG, DON

Phone not on record

DICKEYVILLE, WI 53808