Is EUREKA required to publish a Consumer Confidence Report?

Yes. EUREKA 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 EUREKA’s next Consumer Confidence Report due?

EUREKA’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.

EUREKA, IL · Woodford County

EUREKA Water System

Consumer Confidence Report status

EUREKA 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 EUREKA.

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 Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.

System facts

System ID (PWSID): IL2030200
System type: Community Water System
Population served: 5,216
Service connections: 2,278
Ownership: local government
Water source: groundwater (wells)

EUREKA is one of 248 community water systems in Illinois in the 3,301 to 10,000 people size category, serving 5,216 people from groundwater.

As of August 1, 2026, its federal record holds 29 entries between 1977 and 2024, all of which EPA lists as closed.

Of the 29, 17 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 Surface Water Treatment Rules, inorganic chemicals, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 1998 – August 31, 1998
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
January 1, 1995 – January 31, 1995
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 1994 – December 31, 1994
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 1994 – December 31, 1994
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 1994 – October 31, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 1994 – October 31, 1994
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 1994 – September 30, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 1994 – September 30, 1994
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 1994 – August 31, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1994 – August 31, 1994
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 1994 – July 31, 1994
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 1994 – June 30, 1994
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 1994 – May 31, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 1994 – April 30, 1994
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 1994 – April 30, 1994
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 1994 – March 31, 1994
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 1994 – February 28, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 1994 – February 28, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
January 1, 1994 – January 31, 1994
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 1993 – November 30, 1993
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 1993 – October 31, 1993
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 1993 – September 30, 1993
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1993 – August 31, 1993
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 1993 – July 31, 1993
Archived
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
January 1, 1992 – January 31, 1995
Archived
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
November 1, 1985 – October 31, 1992
Archived
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
November 1, 1978 – October 31, 1985
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
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
January 1, 2024 – December 31, 2024	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
August 1, 1998 – August 31, 1998	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
January 1, 1995 – January 31, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
December 1, 1994 – December 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
December 1, 1994 – December 31, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
October 1, 1994 – October 31, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
October 1, 1994 – October 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
September 1, 1994 – September 30, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
September 1, 1994 – September 30, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
August 1, 1994 – August 31, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
August 1, 1994 – August 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
July 1, 1994 – July 31, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
June 1, 1994 – June 30, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
May 1, 1994 – May 31, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
April 1, 1994 – April 30, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
April 1, 1994 – April 30, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
March 1, 1994 – March 31, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
February 1, 1994 – February 28, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
February 1, 1994 – February 28, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
January 1, 1994 – January 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
November 1, 1993 – November 30, 1993	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
October 1, 1993 – October 31, 1993	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
September 1, 1993 – September 30, 1993	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
August 1, 1993 – August 31, 1993	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
July 1, 1993 – July 31, 1993	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
January 1, 1992 – January 31, 1995	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Archived
November 1, 1985 – October 31, 1992	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Archived
November 1, 1978 – October 31, 1985	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Archived
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

August 15, 2025State Compliance achieved1 linked violation
May 5, 2025State Public Notification received1 linked violation
October 11, 2024State Public Notification requested1 linked violation
October 11, 2024State Violation/Reminder Notice1 linked violation
October 15, 1998State Violation/Reminder Notice1 linked violation
October 15, 1998State Public Notification requested1 linked violation
March 16, 1995State Violation/Reminder Notice3 linked violations
March 16, 1995State Public Notification requested3 linked violations
March 9, 1995State Public Notification received3 linked violations
February 10, 1995State Public Notification requested1 linked violation
February 10, 1995State Violation/Reminder Notice1 linked violation
February 9, 1995State Public Notification received1 linked violation
January 12, 1995State Public Notification received3 linked violations
January 6, 1995State Violation/Reminder Notice3 linked violations
January 6, 1995State Public Notification requested3 linked violations
December 23, 1994State Violation/Reminder Notice1 linked violation
December 23, 1994State Public Notification requested1 linked violation
December 8, 1994State Public Notification received1 linked violation
November 10, 1994State Public Notification received1 linked violation
November 3, 1994State Public Notification received2 linked violations
October 24, 1994State Public Notification requested6 linked violations
October 24, 1994State Violation/Reminder Notice6 linked violations
October 13, 1994State Public Notification received1 linked violation
September 8, 1994State Public Notification received2 linked violations
September 8, 1994State Public Notification received2 linked violations
July 14, 1994State Public Notification received2 linked violations
July 14, 1994State Public Notification received1 linked violation
May 18, 1994State Violation/Reminder Notice2 linked violations
May 18, 1994State Violation/Reminder Notice2 linked violations
May 18, 1994State Public Notification requested2 linked violations
May 18, 1994State Violation/Reminder Notice2 linked violations
May 18, 1994State Public Notification requested2 linked violations
May 12, 1994State Public Notification received2 linked violations
May 12, 1994State Public Notification received1 linked violation
May 5, 1994State Public Notification received1 linked violation
May 5, 1994State Public Notification received2 linked violations
April 7, 1994State Public Notification received2 linked violations
April 7, 1994State Public Notification received1 linked violation
March 18, 1994State Public Notification requested2 linked violations
March 18, 1994State Public Notification requested4 linked violations
March 18, 1994State Violation/Reminder Notice2 linked violations
March 18, 1994State Public Notification requested2 linked violations
March 18, 1994State Violation/Reminder Notice4 linked violations
March 10, 1994State Public Notification received2 linked violations
March 10, 1994State Public Notification received3 linked violations
January 3, 1994State Compliance achieved1 linked violation
December 6, 1993State Public Notification received1 linked violation
November 24, 1993State Public Notification received2 linked violations
November 24, 1993State Public Notification received2 linked violations
November 24, 1993State Public Notification received5 linked violations
November 24, 1993State Public Notification received2 linked violations
November 24, 1993State Public Notification received2 linked violations
November 11, 1993State Public Notification received1 linked violation
November 11, 1993State Public Notification received1 linked violation
October 7, 1993State Violation/Reminder Notice1 linked violation
October 7, 1993State Public Notification requested1 linked violation
October 7, 1993State Violation/Reminder Notice2 linked violations
January 21, 1993State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
January 1, 1993State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 1, 1993State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 26, 1991State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
December 1, 1991State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
December 1, 1991State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 25, 1990State Compliance achieved1 linked violation

Common questions

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

BROWN, MELISSA

309-467-2113

EUREKA, IL 61530