DEFOREST WATERWORKS
Wisconsin — Community Water System — PWSID: WI1130221
System Information
| PWSID | WI1130221 |
| System Name | DEFOREST WATERWORKS |
| 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 | Jan 28, 1981 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Wisconsin |
| City | DEFOREST |
| ZIP Code | 53532-0510 |
| Address | 120 S STEVENSON ST |
| Organization | BLAU, JUDD - PUBLIC SERVICES DIR |
| Phone | — |
Population & Service
| Population Served | 10,500 |
| Service Connections | 3,888 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 17, 2024 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Resolved | Jun 4, 2025 | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Resolved | Jun 4, 2025 | — | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Jun 1, 1993 | Jun 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 24, 1993 | — | |
| Jun 1, 1993 | Jun 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 24, 1993 | — | |
| Jun 1, 1993 | Jun 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 24, 1993 | — | |
| Jun 1, 1993 | Jun 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 24, 1993 | — | |
| Apr 1, 1993 | Apr 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 1993 | — | |
| Apr 1, 1993 | Apr 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 1993 | — | |
| Apr 1, 1993 | Apr 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 1993 | — | |
| Apr 1, 1993 | Apr 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Apr 30, 1993 | — | |
| Mar 1, 1993 | Mar 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 8, 1993 | — | |
| Mar 1, 1993 | Mar 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 8, 1993 | — | |
| Mar 1, 1993 | Mar 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 8, 1993 | — | |
| Mar 1, 1993 | Mar 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 8, 1993 | — | |
| — | — | — | 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.