DEERFIELD
Illinois — Community Water System — PWSID: IL0974340
System Information
| PWSID | IL0974340 |
| System Name | DEERFIELD |
| 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 | Feb 26, 2026 |
Location & Contact
| State | Illinois |
| City | DEERFIELD |
| ZIP Code | 60015 |
| Address | 465 ELM ST. |
| Organization | PHILLIPS, ROBERT W. |
| Phone | 847-317-2490 |
Population & Service
| Population Served | 19,196 |
| Service Connections | 6,281 |
Drinking Water Violations (44)
This water system has 44 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, 2025 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Mar 31, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Mar 31, 2025 | — | |
| Jul 10, 2023 | — | Other | No | No | — | — | — | Resolved | Jul 1, 2024 | — | |
| Jul 10, 2023 | — | Other | No | No | — | — | — | Resolved | Jul 1, 2024 | — | |
| Jul 1, 2022 | — | Other | No | No | — | — | — | Resolved | Jul 1, 2024 | — | |
| Jul 1, 2022 | — | Other | No | No | — | — | — | Resolved | Jul 1, 2024 | — | |
| Jul 1, 2019 | — | Other | No | No | — | — | — | Resolved | Jul 19, 2019 | — | |
| Jul 1, 2019 | — | Other | No | No | — | — | — | Resolved | Jul 19, 2019 | — | |
| Jul 1, 2018 | — | Other | No | No | — | — | — | Resolved | Jul 19, 2019 | — | |
| Jul 1, 2018 | — | Other | No | No | — | — | — | Resolved | Jul 19, 2019 | — | |
| Jul 1, 2014 | — | Other | No | No | — | — | — | Resolved | Jun 29, 2015 | — | |
| Jul 1, 2014 | — | Other | No | No | — | — | — | Resolved | Jun 29, 2015 | — | |
| Aug 1, 2013 | Aug 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | — | |
| Aug 1, 2013 | Aug 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | — | |
| Aug 1, 2013 | Aug 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | — | |
| Aug 1, 2013 | Aug 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | — | |
| Aug 1, 2013 | Aug 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | — | |
| Aug 1, 2013 | Aug 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | — | |
| Aug 1, 2013 | Aug 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | — | |
| Aug 1, 2013 | Aug 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | — | |
| Aug 1, 2013 | Aug 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | — | |
| Aug 1, 2013 | Aug 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | — | |
| Oct 1, 2005 | — | MR | No | No | — | TT | — | Resolved | Jun 14, 2006 | — | |
| Oct 1, 2005 | — | MR | No | No | — | TT | — | Resolved | Jun 14, 2006 | — | |
| Oct 1, 2005 | — | MR | No | No | — | TT | — | Resolved | Jun 14, 2006 | — | |
| Oct 1, 2005 | — | MR | No | No | — | TT | — | Resolved | Jun 14, 2006 | — | |
| Apr 1, 2005 | Apr 30, 2005 | TT | Yes | No | — | — | — | Resolved | Apr 30, 2005 | — | |
| Apr 1, 2005 | Apr 30, 2005 | TT | Yes | No | — | — | — | Resolved | Apr 30, 2005 | — | |
| Apr 1, 2005 | Apr 30, 2005 | TT | Yes | No | — | — | — | Resolved | Apr 30, 2005 | — | |
| Apr 1, 2005 | Apr 30, 2005 | TT | Yes | No | — | — | — | Resolved | Apr 30, 2005 | — | |
| Dec 7, 1992 | — | TT | Yes | No | — | TT | — | Resolved | Dec 28, 1993 | — | |
| Dec 7, 1992 | — | TT | Yes | No | — | TT | — | Resolved | Dec 28, 1993 | — | |
| Jun 30, 1977 | Jun 29, 1981 | MR | No | No | — | 15 pCi/L | — | Archived | Jun 29, 1981 | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | 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.