WILLIAMSFIELD, IL · Knox County

WILLIAMSFIELD Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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: 575
Service connections: 275
Ownership: local government
Water source: groundwater (wells)

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
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
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
Nitrate
October 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Benzene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
Styrene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
Tetrachloroethylene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
CHLOROBENZENE
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
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	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Nitrate	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	Benzene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	Styrene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	Tetrachloroethylene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	CHLOROBENZENE	—	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 Public Notification requested1 linked violation
February 10, 2005State Violation/Reminder Notice1 linked violation
October 21, 2004State Bilateral Compliance Agreement signed1 linked violation
October 21, 2004State Compliance achieved3 linked violations
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 Violation/Reminder Notice2 linked violations
February 15, 1999State Public Notification requested2 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

Contact

COURSON, TORI

309-221-6886

WILLIAMSFIELD, IL 61489