ROUND LAKE
Illinois - Community Water System - PWSID: IL0971500
System Information
| PWSID | IL0971500 |
| System Name | ROUND LAKE |
| 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 | ROUND LAKE |
| ZIP Code | 60073 |
| Address | 442 N Cedar Lake Rd |
| Organization | SCHROFF, BRANDY |
| Phone | 847-546-5400 |
Population & Service
| Population Served | 18,430 |
| Service Connections | 5,014 |
Drinking Water Violations (33)
This water system has 33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 3, 2023 | - | Other | No | No | - | - | - | Resolved | Dec 14, 2023 | - | |
| Dec 3, 2023 | - | Other | No | No | - | - | - | Resolved | Dec 14, 2023 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 28, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 28, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 28, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 28, 2024 | - | |
| Dec 1, 2006 | Dec 31, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2006 | - | |
| Dec 1, 2006 | Dec 31, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2006 | - | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Oct 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2006 | - | |
| Mar 27, 1992 | Mar 26, 1996 | MCL | Yes | No | 7.7 | 5 pCi/L | - | Resolved | Jun 30, 1992 | - | |
| Mar 27, 1992 | Mar 26, 1996 | MCL | Yes | No | 7.7 | 5 pCi/L | - | Resolved | Jun 30, 1992 | - | |
| Mar 27, 1992 | Mar 26, 1996 | MCL | Yes | No | 7.7 | 5 pCi/L | - | Resolved | Jun 30, 1992 | - | |
| Sep 1, 1985 | Aug 31, 1989 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Resolved | Oct 15, 1987 | - | |
| Sep 1, 1985 | Aug 31, 1989 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Resolved | Oct 15, 1987 | - | |
| Sep 1, 1985 | Aug 31, 1989 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Resolved | Oct 15, 1987 | - | |
| Sep 1, 1985 | Aug 31, 1989 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Resolved | Oct 15, 1987 | - | |
| Sep 1, 1985 | Aug 31, 1989 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Resolved | Oct 15, 1987 | - | |
| Sep 1, 1985 | Aug 31, 1989 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Resolved | Oct 15, 1987 | - | |
| Sep 1, 1985 | Aug 31, 1989 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Resolved | Oct 15, 1987 | - | |
| Sep 24, 1981 | Sep 23, 1985 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Archived | Sep 23, 1985 | - | |
| Sep 24, 1981 | Sep 23, 1985 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Archived | Sep 23, 1985 | - | |
| Sep 24, 1981 | Sep 23, 1985 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Archived | Sep 23, 1985 | - | |
| Sep 24, 1981 | Sep 23, 1985 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Archived | Sep 23, 1985 | - | |
| Sep 24, 1981 | Sep 23, 1985 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Archived | Sep 23, 1985 | - | |
| Sep 24, 1981 | Sep 23, 1985 | MCL | Yes | No | 19.9 | 15 pCi/L | - | Archived | Sep 23, 1985 | - | |
| Jun 30, 1977 | Jun 29, 1981 | MR | No | No | - | 15 pCi/L | - | Archived | Jun 29, 1981 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | 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.