MOKENA
Illinois - Community Water System - PWSID: IL1970600
System Information
| PWSID | IL1970600 |
| System Name | MOKENA |
| 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 | MOKENA |
| ZIP Code | 60448 |
| Address | 11400 W 191st St |
| Organization | BERSHERS, TIMOTHY |
| Phone | 708-479-3926 |
Population & Service
| Population Served | 19,887 |
| Service Connections | 7,353 |
Drinking Water Violations (50)
This water system has 50 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, 2024 | Sep 30, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Mar 1, 2021 | Mar 31, 2021 | MON | No | No | - | - | - | Resolved | Mar 31, 2021 | - | |
| Mar 1, 2021 | Mar 31, 2021 | MON | No | No | - | - | - | Resolved | Mar 31, 2021 | - | |
| Mar 1, 2021 | Mar 31, 2021 | MON | No | No | - | - | - | Resolved | Mar 31, 2021 | - | |
| Mar 1, 2021 | Mar 31, 2021 | MON | No | No | - | - | - | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2021 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Jul 30, 2018 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Jul 30, 2018 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2012 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2012 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2012 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2012 | - | |
| Jun 1, 1996 | Jun 30, 1996 | MCL | Yes | No | - | 5% of samples | - | Archived | Jun 30, 1996 | - | |
| Jun 1, 1996 | Jun 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1996 | - | |
| Jun 1, 1996 | Jun 30, 1996 | MCL | Yes | No | - | 5% of samples | - | Archived | Jun 30, 1996 | - | |
| Jun 1, 1996 | Jun 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1996 | - | |
| Jun 1, 1996 | Jun 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1996 | - | |
| Jun 1, 1996 | Jun 30, 1996 | MCL | Yes | No | - | 5% of samples | - | Archived | Jun 30, 1996 | - | |
| Mar 1, 1996 | Mar 31, 1996 | MR | No | No | - | 5% of samples | - | Archived | Mar 31, 1996 | - | |
| Apr 1, 1993 | - | MR | No | No | - | TT | - | Resolved | Jan 26, 1994 | - | |
| Nov 1, 1992 | Nov 30, 1992 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1992 | - | |
| Nov 1, 1992 | Nov 30, 1992 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1992 | - | |
| 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.