WINCHESTER
Illinois — Community Water System — PWSID: IL1710350
System Information
| PWSID | IL1710350 |
| System Name | WINCHESTER |
| 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 | WINCHESTER |
| ZIP Code | 62694 |
| Address | 1 E MARKET ST |
| Organization | DOBSON, JAMES M |
| Phone | 217-742-3191 |
Population & Service
| Population Served | 1,589 |
| Service Connections | 820 |
Drinking Water Violations (13)
This water system has 13 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, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 1, 2023 | Consumer Confidence Rule |
| Jul 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 1, 2023 | Consumer Confidence Rule |
| Dec 30, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 13, 2021 | Lead and Copper Rule |
| Dec 30, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 13, 2021 | Lead and Copper Rule |
| Jan 1, 2004 | Mar 31, 2004 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 2004 | Nitrate Rule |
| Jan 1, 2004 | Mar 31, 2004 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 2004 | Nitrate Rule |
| Jan 1, 2004 | Mar 31, 2004 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 2004 | Nitrate Rule |
| Jan 1, 2004 | Mar 31, 2004 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 2004 | Nitrate Rule |
| Sep 1, 1996 | Sep 30, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 1996 | Total Coliform Rule |
| Sep 1, 1996 | Sep 30, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 1996 | Total Coliform Rule |
| Sep 1, 1996 | Sep 30, 1996 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 1996 | 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 | — | — | — | — | — | — |
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.