DARIEN, IL · DuPage County
HIGHLAND HILLS SD Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of June 5, 2018. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in DuPage County, IL.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
- IL0435560
- System type
- Community Water System
- Population served
- 1,071
- Service connections
- 357
- Ownership
- local government
- Water source
- groundwater (wells)
HIGHLAND HILLS SD is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, formerly serving 1,071 people from groundwater.
EPA's federal records list this system as inactive in 2018; the record below is historical.
As of August 1, 2026, its federal record holds 17 entries between 1993 and 2010, all of which EPA lists as closed. Nothing has been added since 2010.
All 17 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, the Lead and Copper Rule, and the Total Coliform Rules.
Violation history
Lead Consumer Notice
—Lead and Copper Rule
January 2, 2010 – January 20, 2010
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 2006 – November 30, 2006
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2006 – December 13, 2006
ResolvedMonitoring, Regular
—o-Dichlorobenzene
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—p-Dichlorobenzene
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—Carbon tetrachloride
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—1,2-Dichloropropane
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—Styrene
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—Tetrachloroethylene
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—CHLOROBENZENE
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—Benzene
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—Toluene
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—Ethylbenzene
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—Trichloroethylene
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—Xylenes, Total
April 1, 1993 – June 30, 1993
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 2, 2010 – January 20, 2010 | Lead Consumer Notice | Lead and Copper Rule | — | Resolved |
| November 1, 2006 – November 30, 2006 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 2006 – December 13, 2006 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | Styrene | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | Benzene | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | Toluene | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | Xylenes, Total | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- January 20, 2010State Compliance achieved7 linked violations
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved1 linked violation
- February 1, 1994State Compliance achieved17 linked violations
- July 30, 1993State Public Notification requested17 linked violations
- July 30, 1993State Violation/Reminder Notice17 linked violations
Last known contact on file (system is inactive)
JOERS, JAMES J.
630-964-7503
DARIEN, IL 60561