SOMONAUK
Illinois — Community Water System — PWSID: IL0374870
System Information
| PWSID | IL0374870 |
| System Name | SOMONAUK |
| System Type | Community Water System |
| Water Source | Ground 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 | SOMONAUK |
| ZIP Code | 60552 |
| Address | PO BOX 218 |
| Organization | EIPERS, BEN P. |
| Phone | 815-498-2056 |
Population & Service
| Population Served | 1,786 |
| Service Connections | 740 |
Drinking Water Violations (8)
This water system has 8 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, 2007 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 11, 2007 | Consumer Confidence Rule |
| Jul 1, 2007 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 11, 2007 | Consumer Confidence Rule |
| Aug 1, 1995 | — | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Feb 20, 1997 | Lead and Copper Rule |
| Jan 12, 1995 | — | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Feb 20, 1997 | Lead and Copper Rule |
| Oct 1, 1992 | Oct 31, 1992 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 1992 | Total Coliform Rule |
| Oct 1, 1992 | Oct 31, 1992 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 1992 | Total Coliform Rule |
| Oct 1, 1992 | Oct 31, 1992 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 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 |
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.