FLAT ROCK
Illinois - Community Water System - PWSID: IL0330050
System Information
| PWSID | IL0330050 |
| System Name | FLAT ROCK |
| System Type | Community Water System |
| Water Source | Ground 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 | FLAT ROCK |
| ZIP Code | 62427 |
| Address | 106 S Main St |
| Organization | RALSTON, VIC |
| Phone | 812-830-9415 |
Population & Service
| Population Served | 325 |
| Service Connections | 168 |
Drinking Water Violations (21)
This water system has 21 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 2, 2025 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Aug 8, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Aug 8, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 1997 | Dec 31, 1997 | MCL | Yes | No | 1.8 | 1 mg/L | - | Resolved | Nov 17, 1997 | - | |
| Oct 1, 1997 | Dec 31, 1997 | MCL | Yes | No | 1.8 | 1 mg/L | - | Resolved | Nov 17, 1997 | - | |
| Oct 1, 1997 | Dec 31, 1997 | MCL | Yes | No | 1.8 | 1 mg/L | - | Resolved | Nov 17, 1997 | - | |
| Jul 1, 1997 | Sep 30, 1997 | MCL | Yes | No | 1.8 | 1 mg/L | - | Resolved | Sep 30, 1997 | - | |
| Jul 1, 1997 | Sep 30, 1997 | MCL | Yes | No | 1.8 | 1 mg/L | - | Resolved | Sep 30, 1997 | - | |
| Jul 1, 1997 | Sep 30, 1997 | MCL | Yes | No | 1.8 | 1 mg/L | - | Resolved | Sep 30, 1997 | - | |
| Jul 1, 1997 | Sep 30, 1997 | MCL | Yes | No | 1.8 | 1 mg/L | - | Resolved | Sep 30, 1997 | - | |
| Nov 1, 1995 | Nov 30, 1995 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1995 | - | |
| Nov 1, 1995 | Nov 30, 1995 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1995 | - | |
| Jun 30, 1977 | Jun 29, 1981 | MR | No | No | - | 15 pCi/L | - | Archived | Jun 29, 1981 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | 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.