LIBERTYVILLE, IL · Lake County

VERNON HILLS - LAKE CO PW 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): IL0971750
System type: Community Water System
Population served: 33,207
Service connections: 11,069
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring and Reporting (DBP)
—
TTHM
July 1, 2024 – September 30, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2012 – July 10, 2013
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 1995 – June 30, 1995
Archived
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
August 1, 1994 – August 31, 1994
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1994 – August 31, 1994
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
December 1, 1989 – June 30, 1992
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
December 9, 1985 – December 8, 1989
Resolved
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
July 1, 2024 – September 30, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2012 – July 10, 2013	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
June 1, 1995 – June 30, 1995	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
August 1, 1994 – August 31, 1994	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
August 1, 1994 – August 31, 1994	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
December 1, 1989 – June 30, 1992	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
December 9, 1985 – December 8, 1989	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
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

June 30, 2025State Public Notification received1 linked violation
November 12, 2024State Compliance achieved1 linked violation
October 15, 2024State Public Notification requested1 linked violation
October 15, 2024State Violation/Reminder Notice1 linked violation
July 10, 2013State Compliance achieved1 linked violation
August 23, 2012State Violation/Reminder Notice1 linked violation
September 22, 1995State Public Notification received1 linked violation
September 2, 1995State Public Notification requested1 linked violation
September 2, 1995State Violation/Reminder Notice1 linked violation
October 29, 1994State Violation/Reminder Notice2 linked violations
October 29, 1994State Public Notification requested2 linked violations
September 16, 1994State Public Notification received1 linked violation
September 16, 1994State Public Notification received1 linked violation
September 16, 1994State Public Notification received2 linked violations
August 17, 1994State Public Notification received1 linked violation
August 17, 1994State Public Notification received1 linked violation
August 17, 1994State Public Notification received2 linked violations
June 30, 1992State Compliance achieved2 linked violations
December 16, 1991State Public Notification received1 linked violation
September 26, 1991State Public Notification received1 linked violation
July 10, 1991State Public Notification received1 linked violation
March 20, 1991State Public Notification received1 linked violation
September 20, 1990State Public Notification received1 linked violation
April 15, 1990State Public Notification received1 linked violation
March 14, 1990State Public Notification received1 linked violation
December 15, 1989State Public Notification requested2 linked violations
June 30, 1989State Public Notification received1 linked violation

Contact

MCFARLANE, AUSTIN

847-377-7134

LIBERTYVILLE, IL 60048