HUNTLEY, IL · McHenry County

HUNTLEY 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): IL1110350
System type: Community Water System
Population served: 28,495
Service connections: 12,956
Ownership: local government
Water source: groundwater (wells)

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2006 – August 30, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2000 – October 16, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1998 – April 30, 1998
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
June 1, 1997 – June 30, 1997
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 1997 – June 30, 1997
Archived
Maximum Contaminant Level Violation, Average
Health-based
Barium
April 1, 1997 – June 30, 1997
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Barium
October 1, 1996 – December 31, 1996
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Barium
January 1, 1996 – March 31, 1996
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
February 1, 1995 – February 28, 1995
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 1995 – January 31, 1995
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 1994 – November 30, 1994
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
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2006 – August 30, 2006	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
April 1, 2000 – October 16, 2000	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 1998 – April 30, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1997 – June 30, 1997	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1997 – June 30, 1997	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 1997 – June 30, 1997	Maximum Contaminant Level Violation, Average	Barium	Health-based	Resolved
October 1, 1996 – December 31, 1996	Maximum Contaminant Level Violation, Average	Barium	Health-based	Resolved
January 1, 1996 – March 31, 1996	Maximum Contaminant Level Violation, Average	Barium	Health-based	Resolved
February 1, 1995 – February 28, 1995	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
January 1, 1995 – January 31, 1995	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
November 1, 1994 – November 30, 1994	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	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

October 16, 2025State Public Notification requested1 linked violation
October 16, 2025State Violation/Reminder Notice1 linked violation
October 16, 2025State Boil Water Order1 linked violation
October 16, 2025State Bilateral Compliance Agreement signedgeneral compliance action — not tied to a specific violation on record
October 16, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
October 16, 2025State Public Notification received1 linked violation
October 16, 2025State Violation/Reminder Notice1 linked violation
October 16, 2025State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
October 16, 2025State Public Notification requested1 linked violation
May 30, 2008State Public Notification received1 linked violation
April 23, 2008State Formal Notice of Violation issued1 linked violation
April 16, 2008State Public Notification requested1 linked violation
April 16, 2008State Violation/Reminder Notice1 linked violation
April 14, 2008State Compliance achieved1 linked violation
February 28, 2008State Public Notification received1 linked violation
January 17, 2008State Public Notification requested1 linked violation
January 17, 2008State Violation/Reminder Notice1 linked violation
January 3, 2008State Bilateral Compliance Agreement signed2 linked violations
January 3, 2008State Compliance achieved2 linked violations
December 3, 2007State Public Notification received1 linked violation
November 30, 2007State Public Notification received1 linked violation
November 28, 2007State Formal Notice of Violation issued2 linked violations
October 18, 2007State Violation/Reminder Notice1 linked violation
October 18, 2007State Public Notification requested1 linked violation
October 12, 2006State Violation/Reminder Notice1 linked violation
August 30, 2006State Compliance achieved1 linked violation
March 3, 1999State Compliance achieved1 linked violation
June 27, 1998State Public Notification requested1 linked violation
June 27, 1998State Violation/Reminder Notice1 linked violation
October 6, 1997State Public Notification received1 linked violation
September 30, 1997State Compliance achieved1 linked violation
September 19, 1997State Compliance achieved3 linked violations
September 18, 1997State Public Notification requested1 linked violation
September 18, 1997State Violation/Reminder Notice1 linked violation
August 30, 1997State Public Notification requested2 linked violations
August 30, 1997State Violation/Reminder Notice2 linked violations
August 19, 1997State Compliance achieved4 linked violations
July 1, 1997State Public Notification requested1 linked violation
July 1, 1997State Violation/Reminder Notice1 linked violation
April 1, 1997State Public Notification requested1 linked violation
April 1, 1997State Violation/Reminder Notice1 linked violation
January 1, 1997State Violation/Reminder Notice1 linked violation
January 1, 1997State Public Notification requested1 linked violation
October 1, 1996State Violation/Reminder Notice1 linked violation
October 1, 1996State Public Notification requested1 linked violation
July 1, 1996State Public Notification requested1 linked violation
July 1, 1996State Violation/Reminder Notice1 linked violation
April 1, 1996State Violation/Reminder Notice1 linked violation
April 1, 1996State Public Notification requested1 linked violation
January 1, 1996State Violation/Reminder Notice1 linked violation
October 20, 1995State Public Notification received1 linked violation
May 4, 1995State Violation/Reminder Notice1 linked violation
March 30, 1995State Violation/Reminder Notice1 linked violation
March 30, 1995State Public Notification requested1 linked violation
March 20, 1995State Public Notification received1 linked violation
February 4, 1995State Public Notification requested1 linked violation
February 4, 1995State Violation/Reminder Notice1 linked violation
January 30, 1992State Public Notification received1 linked violation
January 11, 1992State Public Notification requested1 linked violation
June 16, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 16, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
June 7, 1990State Public Notification receivedgeneral compliance action — not tied to a specific violation on record

Contact

FARRELL, TIMOTHY

847-515-5285

HUNTLEY, IL 60142