SHEFFIELD
Illinois - Community Water System - PWSID: IL0110950
System Information
| PWSID | IL0110950 |
| System Name | SHEFFIELD |
| 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 | Feb 26, 2026 |
Location & Contact
| State | Illinois |
| City | KEWANEE |
| ZIP Code | 61443 |
| Address | BOCK INC. |
| Organization | BOCKEWITZ, RYAN A. |
| Phone | 309-854-2926 |
Population & Service
| Population Served | 821 |
| Service Connections | 460 |
Drinking Water Violations (54)
This water system has 54 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.010 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 5 pCi/L | - | Archived | Dec 31, 2025 | - | |
| Aug 1, 2015 | Jul 31, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jul 31, 2016 | - | |
| Aug 1, 2015 | Jul 31, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jul 31, 2016 | - | |
| Aug 1, 2015 | Jul 31, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jul 31, 2016 | - | |
| Aug 1, 2015 | Jul 31, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jul 31, 2016 | - | |
| Aug 1, 2015 | Jul 31, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jul 31, 2016 | - | |
| Aug 1, 2015 | Jul 31, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jul 31, 2016 | - | |
| Aug 1, 2015 | Jul 31, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jul 31, 2016 | - | |
| Aug 1, 2015 | Jul 31, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jul 31, 2016 | - | |
| Oct 30, 2009 | - | Other | No | No | - | - | - | Resolved | Jul 9, 2010 | - | |
| Oct 30, 2009 | - | Other | No | No | - | - | - | Resolved | Jul 9, 2010 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Nov 12, 2008 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Nov 12, 2008 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Nov 12, 2008 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Nov 12, 2008 | - | |
| Oct 1, 2008 | Oct 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2008 | - | |
| Oct 1, 2008 | Oct 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2008 | - | |
| Oct 1, 2008 | Oct 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2008 | - | |
| Oct 1, 2008 | Oct 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2008 | - | |
| Apr 1, 1994 | Aug 18, 1994 | MR | No | No | - | TT | - | Resolved | Aug 18, 1994 | - | |
| Sep 1, 1991 | Sep 30, 1991 | MR | No | No | - | 5% of samples | - | Archived | Sep 30, 1991 | - | |
| Sep 1, 1991 | Sep 30, 1991 | MR | No | No | - | 5% of samples | - | Archived | Sep 30, 1991 | - | |
| Sep 1, 1991 | Sep 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Sep 30, 1991 | - | |
| Sep 1, 1991 | Sep 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Sep 30, 1991 | - | |
| Sep 1, 1991 | Sep 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Sep 30, 1991 | - | |
| Sep 1, 1991 | Sep 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Sep 30, 1991 | - | |
| Jun 30, 1977 | Jun 29, 1981 | MR | No | No | - | 15 pCi/L | - | Archived | Jun 29, 1981 | - | |
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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.