WINNETKA
Illinois — Community Water System — PWSID: IL0313330
System Information
| PWSID | IL0313330 |
| System Name | WINNETKA |
| System Type | Community Water System |
| Water Source | Surface Water |
| 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 | DEERFIELD |
| ZIP Code | 60015 |
| Address | 1027 CENTRAL AVE |
| Organization | CURLEY, BRIAN |
| Phone | 847-716-3620 |
Population & Service
| Population Served | 12,475 |
| Service Connections | 4,477 |
Drinking Water Violations (12)
This water system has 12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2010 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 20, 2010 | Consumer Confidence Rule |
| Jul 1, 2010 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 20, 2010 | Consumer Confidence Rule |
| Dec 1, 2006 | Dec 31, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2006 | Total Coliform Rule |
| Dec 1, 2006 | Dec 31, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2006 | Total Coliform Rule |
| Oct 1, 2006 | Dec 31, 2006 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2006 | Dec 31, 2006 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jun 25, 1979 | Jun 24, 1980 | Barium | MR | No | Yes | — | 2 mg/L | — | Archived | Jun 24, 1980 | Inorganic Chemicals |
| Jun 25, 1979 | Jun 24, 1980 | Chromium | MR | No | Yes | — | 0.1 mg/L | — | Archived | Jun 24, 1980 | Inorganic Chemicals |
| Jun 25, 1979 | Jun 24, 1980 | Fluoride | MR | No | Yes | — | 4.0 mg/L | — | Archived | Jun 24, 1980 | Inorganic Chemicals |
| 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.