TISKILWA
Illinois — Community Water System — PWSID: IL0111050
System Information
| PWSID | IL0111050 |
| System Name | TISKILWA |
| 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 | TISKILWA |
| ZIP Code | 61368 |
| Address | PO Box 433 |
| Organization | ACKER, DANIEL |
| Phone | 815-303-7814 |
Population & Service
| Population Served | 740 |
| Service Connections | 360 |
Drinking Water Violations (42)
This water system has 42 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 17, 2024 | — | TT | Yes | No | — | — | — | Resolved | May 8, 2025 | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Resolved | May 8, 2025 | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Resolved | May 8, 2025 | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Resolved | May 8, 2025 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | Yes | — | 0.02 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | Yes | — | 0.02 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | Yes | — | 0.02 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | Yes | — | 0.02 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jul 1, 2008 | Dec 31, 2008 | TT | Yes | No | — | TT | — | Resolved | Dec 31, 2008 | — | |
| Jul 1, 2008 | Dec 31, 2008 | TT | Yes | No | — | TT | — | Resolved | Dec 31, 2008 | — | |
| Jul 1, 2008 | Dec 31, 2008 | TT | Yes | No | — | TT | — | Resolved | Dec 31, 2008 | — | |
| Jul 1, 2008 | Dec 31, 2008 | TT | Yes | No | — | TT | — | Resolved | Dec 31, 2008 | — | |
| Jul 1, 2003 | — | Other | No | No | — | — | — | Resolved | Jul 3, 2003 | — | |
| Jul 1, 2003 | — | Other | No | No | — | — | — | Resolved | Jul 3, 2003 | — | |
| Jul 1, 2000 | Jul 31, 2000 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 2000 | — | |
| Jul 1, 2000 | Jul 31, 2000 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 2000 | — | |
| Apr 1, 2000 | Jun 30, 2000 | MR | No | No | — | TT | — | Resolved | Jun 30, 2000 | — | |
| Jan 1, 2000 | Mar 31, 2000 | MR | No | No | — | TT | — | Resolved | Mar 31, 2000 | — | |
| Jan 1, 2000 | — | MR | No | No | — | TT | — | Resolved | Jun 30, 2001 | — | |
| Oct 1, 1999 | Dec 31, 1999 | MR | No | No | — | TT | — | Resolved | Dec 31, 1999 | — | |
| Jul 1, 1999 | Sep 30, 1999 | MR | No | No | — | TT | — | Resolved | Sep 30, 1999 | — | |
| Jul 1, 1999 | — | MR | No | No | — | TT | — | Resolved | Jun 30, 2001 | — | |
| Jan 1, 1999 | Jun 30, 1999 | MR | No | No | — | TT | — | Resolved | Jun 30, 1999 | — | |
| Aug 1, 1997 | Aug 31, 1997 | MR | No | No | — | 5% of samples | — | Archived | Aug 31, 1997 | — | |
| Aug 1, 1997 | Aug 31, 1997 | MR | No | No | — | 5% of samples | — | Archived | Aug 31, 1997 | — | |
| May 1, 1994 | May 31, 1994 | MR | No | No | — | 5% of samples | — | Archived | May 31, 1994 | — | |
| May 1, 1994 | May 31, 1994 | MR | No | No | — | 5% of samples | — | Archived | May 31, 1994 | — | |
| May 1, 1994 | May 31, 1994 | MR | No | No | — | 5% of samples | — | Archived | May 31, 1994 | — | |
| May 1, 1994 | May 31, 1994 | MR | No | No | — | 5% of samples | — | Archived | May 31, 1994 | — | |
| May 1, 1994 | May 31, 1994 | MR | No | No | — | 5% of samples | — | Archived | May 31, 1994 | — | |
| May 1, 1994 | May 31, 1994 | MR | No | No | — | 5% of samples | — | Archived | May 31, 1994 | — | |
| Jan 1, 1994 | — | TT | Yes | No | — | TT | — | Resolved | Feb 9, 1995 | — | |
| Sep 1, 1992 | Sep 30, 1992 | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 1992 | — | |
| Sep 1, 1992 | Sep 30, 1992 | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 1992 | — | |
| Sep 1, 1992 | Sep 30, 1992 | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 1992 | — | |
| Jun 30, 1977 | Jun 29, 1981 | MR | No | No | — | 15 pCi/L | — | Archived | Jun 29, 1981 | — | |
| — | — | — | 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.