LITTLE YORK, IL · Warren County

LITTLE YORK 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): IL1870100
System type: Community Water System
Population served: 304
Service connections: 159
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2025 – December 31, 2025
Archived
Monitoring and Reporting (DBP)
—
Chlorine
September 1, 2024 – September 30, 2024
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – August 17, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2006 – June 30, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2006 – January 9, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2006 – March 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2005 – December 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2005 – December 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2005 – September 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2005 – September 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2005 – March 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2004 – September 30, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2003 – December 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2003 – September 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2003 – June 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2003 – March 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
November 1, 1999 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 1998 – December 31, 2001
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
December 1, 1995 – October 31, 1999
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
November 1, 1995 – October 31, 1999
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
November 7, 1991 – November 6, 1995
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
June 1, 1990 – July 17, 1990
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
August 1, 1989 – July 17, 1990
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
July 1, 1985 – November 14, 1985
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
September 1, 2024 – September 30, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2006 – August 17, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2006 – June 30, 2006	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2006 – January 9, 2006	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2006 – March 31, 2006	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
July 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2005 – March 31, 2005	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2004 – September 30, 2004	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2003 – December 31, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2003 – September 30, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2003 – June 30, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2003 – March 31, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
November 1, 1999 – September 30, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 1998 – December 31, 2001	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
December 1, 1995 – October 31, 1999	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
November 1, 1995 – October 31, 1999	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
November 7, 1991 – November 6, 1995	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
June 1, 1990 – July 17, 1990	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
August 1, 1989 – July 17, 1990	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 1985 – November 14, 1985	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	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 Public Notification requested2 linked violations
October 14, 2025State Violation/Reminder Notice2 linked violations
June 24, 2025State Public Notification received1 linked violation
June 24, 2025State Public Notification received1 linked violation
November 7, 2024State Compliance achieved1 linked violation
November 7, 2024State Compliance achieved1 linked violation
October 22, 2024State Public Notification requested1 linked violation
October 22, 2024State Public Notification requested1 linked violation
October 22, 2024State Violation/Reminder Notice1 linked violation
October 22, 2024State Violation/Reminder Notice1 linked violation
January 25, 2010State Compliance achieved2 linked violations
May 24, 2007State Bilateral Compliance Agreement signed2 linked violations
November 22, 2006State Public Notification received6 linked violations
July 25, 2006State Compliance achieved42 linked violations
March 22, 2006State Public Notification requested4 linked violations
March 22, 2006State Violation/Reminder Notice3 linked violations
January 13, 2006State Public Notification received2 linked violations
January 10, 2006State Violation/Reminder Notice2 linked violations
January 10, 2006State Public Notification requested2 linked violations
January 9, 2006State Compliance achieved8 linked violations
October 7, 2005State Public Notification requested2 linked violations
October 7, 2005State Public Notification requested1 linked violation
October 7, 2005State Violation/Reminder Notice1 linked violation
July 18, 2005State Public Notification received7 linked violations
July 8, 2005State Violation/Reminder Notice4 linked violations
July 8, 2005State Public Notification requested5 linked violations
April 15, 2005State Public Notification received1 linked violation
April 8, 2005State Violation/Reminder Notice2 linked violations
April 8, 2005State Public Notification requested1 linked violation
January 14, 2005State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
January 14, 2005State Public Notification received1 linked violation
January 7, 2005State Public Notification requested1 linked violation
January 7, 2005State Violation/Reminder Notice1 linked violation
October 19, 2004State Public Notification requested3 linked violations
October 19, 2004State Violation/Reminder Notice2 linked violations
August 24, 2004State Public Notification received2 linked violations
July 10, 2004State Violation/Reminder Notice2 linked violations
July 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 10, 2004State Violation/Reminder Notice2 linked violations
April 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 10, 2004State Public Notification requested2 linked violations
February 24, 2004State Public Notification received1 linked violation
February 20, 2004State Formal Notice of Violation issued27 linked violations
September 26, 2003State Public Notification received2 linked violations
July 10, 2003State Violation/Reminder Notice6 linked violations
April 17, 2002State Bilateral Compliance Agreement signed10 linked violations
March 25, 2002State Formal Notice of Violation issued11 linked violations
April 1, 1996State Public Notification received3 linked violations
October 1, 1995State Public Notification received2 linked violations
July 7, 1995State Public Notification received2 linked violations
December 22, 1992State Public Notification received2 linked violations
June 4, 1992State Public Notification received1 linked violation
May 7, 1992State Public Notification requested2 linked violations
December 16, 1991State Hook-up/Extension Ban1 linked violation
July 17, 1990State Compliance achieved5 linked violations
July 16, 1990State Public Notification received2 linked violations
January 10, 1990State Public Notification received2 linked violations
October 3, 1989State Public Notification received2 linked violations
July 14, 1989State Public Notification received2 linked violations
March 17, 1989State Public Notification received3 linked violations
November 30, 1988State Public Notification received3 linked violations
October 22, 1988State Public Notification requested1 linked violation
October 22, 1988State Violation/Reminder Notice1 linked violation
November 14, 1985State Compliance achieved1 linked violation

Contact

MELLENY, STEVE

309-206-9067

LITTLE YORK, IL 61453