DELAVAN WATERWORKS
Wisconsin — Community Water System — PWSID: WI2650113
System Information
| PWSID | WI2650113 |
| System Name | DELAVAN 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 | DELAVAN |
| ZIP Code | 53115-1794 |
| Address | 123 S 2ND ST |
| Organization | DELAVAN CITY CLERK |
| Phone | — |
Population & Service
| Population Served | 8,451 |
| Service Connections | 3,130 |
Drinking Water Violations (88)
This water system has 88 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, 2017 | Dec 31, 2017 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2017 | — | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2017 | — | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2017 | — | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | No | — | 0.080 mg/L | — | Resolved | Dec 31, 2017 | — | |
| Jan 1, 2003 | Jan 31, 2003 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jan 31, 2003 | — | |
| Dec 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2002 | — | |
| Nov 1, 2002 | Nov 30, 2002 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Nov 30, 2002 | — | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Oct 31, 2002 | — | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Sep 30, 2002 | — | |
| Aug 1, 2002 | Aug 31, 2002 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Aug 31, 2002 | — | |
| Jul 1, 2002 | Jul 31, 2002 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jul 31, 2002 | — | |
| May 22, 2002 | Jun 30, 2002 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2002 | — | |
| Oct 1, 2000 | — | Other | No | No | — | — | — | Resolved | Jun 26, 2001 | — | |
| Oct 1, 2000 | — | Other | No | No | — | — | — | Resolved | Jun 26, 2001 | — | |
| Jul 1, 2000 | — | Other | No | No | — | — | — | Resolved | Jun 26, 2001 | — | |
| Jul 1, 2000 | — | Other | No | No | — | — | — | Resolved | Jun 26, 2001 | — | |
| Apr 21, 1999 | May 31, 1999 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | May 31, 1999 | — | |
| Apr 21, 1999 | May 31, 1999 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | May 31, 1999 | — | |
| Apr 21, 1999 | May 31, 1999 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | May 31, 1999 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Oct 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1995 | — |
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.