Is WILLIAMSFIELD required to publish a Consumer Confidence Report?

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

WILLIAMSFIELD’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.

WILLIAMSFIELD, IL · Knox County

WILLIAMSFIELD Water System

Consumer Confidence Report status

WILLIAMSFIELD 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 WILLIAMSFIELD.

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): IL0950650
System type: Community Water System
Population served: 647
Service connections: 301
Ownership: local government
Water source: groundwater (wells)

WILLIAMSFIELD is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 647 people from groundwater.

As of August 1, 2026, its federal record holds 16 entries between 1977 and 2025, all of which EPA lists as closed.

Of the 16, 13 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 Total Coliform Rules, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2025 – December 31, 2025
Archived
LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – August 21, 2025
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
February 11, 2006 – July 11, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – October 21, 2004
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 1999 – January 31, 1999
Archived
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
December 1, 1998 – December 31, 1998
Archived
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
November 1, 1998 – November 30, 1998
Archived
Monitoring, Regular
—
Nitrate
October 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Xylenes, Total
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
Ethylbenzene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
Tetrachloroethylene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
October 17, 2024 – August 21, 2025	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Resolved
February 11, 2006 – July 11, 2006	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
July 1, 2004 – October 21, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 1999 – January 31, 1999	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
December 1, 1998 – December 31, 1998	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
November 1, 1998 – November 30, 1998	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Nitrate	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	Xylenes, Total	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	Ethylbenzene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	Tetrachloroethylene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

October 14, 2025State Violation/Reminder Notice1 linked violation
October 14, 2025State Public Notification requested1 linked violation
August 21, 2025State Compliance achieved1 linked violation
August 18, 2025State Public Notification received1 linked violation
July 22, 2025State Violation/Reminder Notice1 linked violation
July 22, 2025State Public Notification requested1 linked violation
July 26, 2006State Bilateral Compliance Agreement signed2 linked violations
July 11, 2006State Compliance achieved2 linked violations
July 11, 2006State Public Notification received1 linked violation
May 15, 2006State Formal Notice of Violation issued2 linked violations
March 9, 2006State Violation/Reminder Notice1 linked violation
March 9, 2006State Violation/Reminder Notice1 linked violation
June 8, 2005State Compliance achieved1 linked violation
February 10, 2005State Violation/Reminder Notice1 linked violation
February 10, 2005State Public Notification requested1 linked violation
October 21, 2004State Bilateral Compliance Agreement signed1 linked violation
August 30, 2004State Formal Notice of Violation issued1 linked violation
July 10, 2004State Violation/Reminder Notice1 linked violation
March 15, 1999State Public Notification requested1 linked violation
March 15, 1999State Violation/Reminder Notice1 linked violation
February 15, 1999State Public Notification requested2 linked violations
February 15, 1999State Violation/Reminder Notice2 linked violations
January 15, 1999State Violation/Reminder Notice2 linked violations
January 15, 1999State Public Notification requested2 linked violations
March 3, 1998State Public Notification received1 linked violation
February 6, 1998State Compliance achieved1 linked violation
January 5, 1998State Public Notification requested1 linked violation
January 5, 1998State Violation/Reminder Notice1 linked violation
May 6, 1993State Compliance achieved17 linked violations
February 11, 1993State Public Notification received17 linked violations
July 1, 1992State Violation/Reminder Notice18 linked violations
July 1, 1992State Public Notification requested18 linked violations
November 14, 1985State Compliance achieved1 linked violation

Common questions

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

COURSON, TORI

309-221-6886

WILLIAMSFIELD, IL 61489