CLARENDON HILLS
Illinois — Community Water System — PWSID: IL0430250
System Information
| PWSID | IL0430250 |
| System Name | CLARENDON HILLS |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1981 |
| Last Reported | Dec 4, 2025 |
Location & Contact
| State | Illinois |
| City | CLARENDON HILLS |
| ZIP Code | 60514 |
| Address | 1 N. Prospect Ave. |
| Organization | MCLAUGHLIN, BRENDAN |
| Phone | 630-286-4750 |
Population & Service
| Population Served | 8,702 |
| Service Connections | 2,742 |
Drinking Water Violations (14)
This water system has 14 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 30, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 14, 2021 | Lead and Copper Rule |
| Dec 30, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 14, 2021 | Lead and Copper Rule |
| Jul 1, 2017 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 2, 2018 | Consumer Confidence Rule |
| Jul 1, 2017 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 2, 2018 | Consumer Confidence Rule |
| Sep 1, 2000 | Sep 30, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 2000 | Total Coliform Rule |
| Sep 1, 2000 | Sep 30, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 2000 | Total Coliform Rule |
| Aug 1, 1996 | Aug 31, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Aug 31, 1996 | Total Coliform Rule |
| Aug 1, 1996 | Aug 31, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Aug 31, 1996 | Total Coliform Rule |
| Aug 1, 1996 | Aug 31, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Aug 31, 1996 | Total Coliform Rule |
| Sep 1, 1992 | Sep 30, 1992 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 1992 | Total Coliform Rule |
| Sep 1, 1992 | Sep 30, 1992 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 1992 | Total Coliform Rule |
| Jun 30, 1977 | Jun 29, 1981 | Gross Alpha, Excl. Radon and U | MR | No | No | — | 15 pCi/L | — | Archived | Jun 29, 1981 | Radionuclides and Revised Rad Rule |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.