VERNON HILLS, IL · Lake County

TANNERON BAY HOMEOWNERS ASSOCIATION Water System

Current status

1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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): IL0971130
System type: Community Water System
Population served: 256
Service connections: 86
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2025
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – July 31, 2023
Resolved
Public Education
Health-based
Lead and Copper Rule
March 1, 2022 – March 2, 2022
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2001 – April 30, 2001
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
Carbon tetrachloride
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
Trichloroethylene
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
Benzene
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
Toluene
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
Ethylbenzene
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
Styrene
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
CHLOROBENZENE
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
Xylenes, Total
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 1998 – June 30, 1998
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 1998 – June 30, 1998
Resolved

Unaddressed no corrective action on record yetResolved 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, 2025	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
July 1, 2023 – July 31, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
March 1, 2022 – March 2, 2022	Public Education	Lead and Copper Rule	Health-based	Resolved
April 1, 2001 – April 30, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1998 – June 30, 1998	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	Carbon tetrachloride	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	Trichloroethylene	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	Benzene	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	Toluene	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	Ethylbenzene	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	Styrene	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	CHLOROBENZENE	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	Xylenes, Total	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
April 1, 1998 – June 30, 1998	Monitoring, Regular	p-Dichlorobenzene	—	Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

August 1, 2025State Violation/Reminder Notice1 linked violation
July 31, 2023State Compliance achieved1 linked violation
July 24, 2023State Violation/Reminder Notice1 linked violation
March 2, 2022State Compliance achieved1 linked violation
February 10, 2022State Compliance achieved1 linked violation
January 24, 2022State Public Notification received2 linked violations
January 19, 2022State Violation/Reminder Notice1 linked violation
January 19, 2022State Public Notification requested1 linked violation
June 15, 2001State Violation/Reminder Notice1 linked violation
June 15, 2001State Public Notification requested3 linked violations
April 15, 2001State Violation/Reminder Notice2 linked violations
April 15, 2001State Public Notification requested1 linked violation
April 8, 1999State Compliance achieved20 linked violations
June 19, 1998State Violation/Reminder Notice20 linked violations
June 19, 1998State Public Notification requested20 linked violations

Contact

ULLRICH, ROBERT

847-478-9700

VERNON HILLS, IL 60061