NORTH REGIONAL WATER FAC
Illinois - Community Water System - PWSID: IL0435850
System Information
| PWSID | IL0435850 |
| System Name | NORTH REGIONAL WATER FAC |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1981 |
| Last Reported | Feb 26, 2026 |
Location & Contact
| State | Illinois |
| City | DARIEN |
| ZIP Code | 60561 |
| Address | 17W440 North Frontage Rd |
| Organization | ADAMS, JONATHAN |
| Phone | 630-964-7503 |
Population & Service
| Population Served | 770 |
| Service Connections | 256 |
Drinking Water Violations (154)
This water system has 154 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2020 | Dec 31, 2025 | MR | No | Yes | - | 5 pCi/L | - | Archived | Dec 31, 2025 | - | |
| Jun 1, 1995 | - | TT | Yes | No | - | TT | - | Resolved | Jun 30, 1996 | - | |
| Nov 21, 1994 | - | TT | Yes | No | - | TT | - | Resolved | Jun 30, 1996 | - | |
| Jan 1, 1994 | Jun 30, 1994 | MR | No | No | - | TT | - | Resolved | Jun 30, 1994 | - | |
| Oct 1, 1993 | - | MR | No | No | - | TT | - | Resolved | Aug 22, 1994 | - | |
| May 1, 1992 | Apr 30, 1995 | MR | No | Yes | - | 0.1 mg/L | - | Archived | Apr 30, 1995 | - | |
| May 1, 1992 | Apr 30, 1995 | MR | No | Yes | - | 0.010 mg/L | - | Archived | Apr 30, 1995 | - | |
| May 1, 1992 | Apr 30, 1995 | MR | No | Yes | - | 2 mg/L | - | Archived | Apr 30, 1995 | - | |
| May 1, 1992 | Apr 30, 1995 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Apr 30, 1995 | - | |
| May 1, 1992 | Apr 30, 1995 | MR | No | Yes | - | 0.002 mg/L | - | Archived | Apr 30, 1995 | - | |
| May 1, 1992 | Apr 30, 1995 | MR | No | Yes | - | 4.0 mg/L | - | Archived | Apr 30, 1995 | - | |
| May 1, 1992 | Apr 30, 1995 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Apr 30, 1995 | - | |
| May 1, 1992 | Apr 30, 1995 | MR | No | Yes | - | 10 mg/L | - | Archived | Apr 30, 1995 | - | |
| Apr 1, 1992 | Apr 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Apr 30, 1992 | - | |
| Apr 1, 1992 | Apr 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Apr 30, 1992 | - | |
| Apr 1, 1992 | Apr 30, 1992 | MR | No | No | - | 5% of samples | - | Archived | Apr 30, 1992 | - | |
| Apr 1, 1992 | Apr 30, 1992 | MR | No | No | - | 5% of samples | - | Archived | Apr 30, 1992 | - | |
| Mar 1, 1992 | Mar 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | Mar 31, 1992 | - | |
| Mar 1, 1992 | Mar 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | Mar 31, 1992 | - | |
| Feb 1, 1992 | Feb 29, 1992 | MR | No | No | - | 5% of samples | - | Archived | Feb 29, 1992 | - | |
| Feb 1, 1992 | Feb 29, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Feb 29, 1992 | - | |
| Feb 1, 1992 | Feb 29, 1992 | MCL | Yes | No | - | 5% of samples | - | Archived | Feb 29, 1992 | - | |
| Feb 1, 1992 | Feb 29, 1992 | MR | No | No | - | 5% of samples | - | Archived | Feb 29, 1992 | - | |
| Nov 1, 1991 | Nov 30, 1991 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1991 | - | |
| Nov 1, 1991 | Nov 30, 1991 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1991 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MR | No | No | - | 5% of samples | - | Archived | Oct 31, 1991 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MR | No | No | - | 5% of samples | - | Archived | Oct 31, 1991 | - | |
| 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 | - | |
| May 1, 1991 | May 31, 1991 | MR | No | No | - | 5% of samples | - | Archived | May 31, 1991 | - | |
| May 1, 1991 | May 31, 1991 | MR | No | No | - | 5% of samples | - | Archived | May 31, 1991 | - | |
| Mar 1, 1991 | Mar 31, 1991 | MR | No | No | - | 5% of samples | - | Archived | Mar 31, 1991 | - | |
| Mar 1, 1991 | Mar 31, 1991 | MR | No | No | - | 5% of samples | - | Archived | Mar 31, 1991 | - | |
| Feb 1, 1991 | Feb 28, 1991 | MR | No | No | - | 5% of samples | - | Archived | Feb 28, 1991 | - | |
| Feb 1, 1991 | Feb 28, 1991 | MR | No | No | - | 5% of samples | - | Archived | Feb 28, 1991 | - | |
| Jan 1, 1991 | Jan 31, 1991 | MR | No | No | - | 5% of samples | - | Archived | Jan 31, 1991 | - | |
| Jan 1, 1991 | Jan 31, 1991 | MR | No | No | - | 5% of samples | - | Archived | Jan 31, 1991 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Apr 30, 1992 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Apr 30, 1992 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Apr 30, 1992 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 10 mg/L | - | Archived | Apr 30, 1992 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Apr 30, 1992 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 0.010 mg/L | - | Archived | Apr 30, 1992 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 0.010 mg/L | - | Archived | Apr 30, 1992 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 10 mg/L | - | Archived | Apr 30, 1992 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 0.010 mg/L | - | Archived | Apr 30, 1992 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 0.010 mg/L | - | Archived | Apr 30, 1992 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 2 mg/L | - | Archived | Apr 30, 1992 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 2 mg/L | - | Archived | Apr 30, 1992 | - | |
| May 1, 1989 | Apr 30, 1992 | MR | No | Yes | - | 10 mg/L | - | Archived | Apr 30, 1992 | - |
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.