ROCK CITY
Illinois — Community Water System — PWSID: IL1770500
System Information
| PWSID | IL1770500 |
| System Name | ROCK CITY |
| 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 | ROCK CITY |
| ZIP Code | 61070 |
| Address | 105 E Jefferson Street |
| Organization | ALBER, NICOLE |
| Phone | 815-865-1029 |
Population & Service
| Population Served | 313 |
| Service Connections | 128 |
Drinking Water Violations (20)
This water system has 20 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, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Jul 1, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 25, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 25, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 25, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 25, 2023 | — | |
| Jul 1, 2015 | — | Other | No | No | — | — | — | Resolved | Jul 29, 2015 | — | |
| Jul 1, 2015 | — | Other | No | No | — | — | — | Resolved | Jul 29, 2015 | — | |
| Jan 2, 2011 | — | MR | No | No | — | TT | — | Resolved | Feb 8, 2011 | — | |
| Jan 2, 2011 | — | MR | No | No | — | TT | — | Resolved | Feb 8, 2011 | — | |
| Jul 1, 2003 | Jul 31, 2003 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 2003 | — | |
| Jul 1, 2003 | Jul 31, 2003 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 2003 | — | |
| Jul 1, 2003 | Jul 31, 2003 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 2003 | — | |
| Jul 1, 2000 | Jul 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Archived | Jul 31, 2000 | — | |
| Jul 1, 2000 | Jul 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Archived | Jul 31, 2000 | — | |
| 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.