PORT WASHINGTON WATERWORKS
Wisconsin — Community Water System — PWSID: WI2460054
System Information
| PWSID | WI2460054 |
| System Name | PORT WASHINGTON WATERWORKS |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 28, 1981 |
| Last Reported | Dec 17, 2025 |
Location & Contact
| State | Wisconsin |
| City | PORT WASHINGTON |
| ZIP Code | 53074-2217 |
| Address | 100 W GRAND AVENUE |
| Organization | CITY OF PORT WASHINGTON CLERK - SUSAN WESTERBEKE |
| Phone | — |
Population & Service
| Population Served | 12,853 |
| Service Connections | 4,760 |
Drinking Water Violations (29)
This water system has 29 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2017 | Jun 30, 2017 | TTHM | MR | No | No | — | 0.080 mg/L | — | Resolved | Jun 30, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2017 | Jun 30, 2017 | Total Haloacetic Acids (HAA5) | MR | No | No | — | 0.060 mg/L | — | Resolved | Jun 30, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2017 | Jun 30, 2017 | Total Haloacetic Acids (HAA5) | MR | No | No | — | 0.060 mg/L | — | Resolved | Jun 30, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2017 | Jun 30, 2017 | Total Haloacetic Acids (HAA5) | MR | No | No | — | 0.060 mg/L | — | Resolved | Jun 30, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2017 | Jun 30, 2017 | Total Haloacetic Acids (HAA5) | MR | No | No | — | 0.060 mg/L | — | Resolved | Jun 30, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2017 | Jun 30, 2017 | TTHM | MR | No | No | — | 0.080 mg/L | — | Resolved | Jun 30, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2017 | Jun 30, 2017 | TTHM | MR | No | No | — | 0.080 mg/L | — | Resolved | Jun 30, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2017 | Jun 30, 2017 | TTHM | MR | No | No | — | 0.080 mg/L | — | Resolved | Jun 30, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Mar 1, 2002 | — | Public Notice | Other | No | No | — | — | — | Resolved | Feb 22, 2011 | Public Notice Rule and Revised PN Rule |
| Mar 1, 2002 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 25, 2003 | Public Notice Rule and Revised PN Rule |
| Jan 1, 2002 | Mar 31, 2002 | CARBON, TOTAL | MR | No | Yes | — | TT | — | Resolved | Mar 31, 2002 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2002 | Mar 31, 2002 | CARBON, TOTAL | MR | No | Yes | — | TT | — | Resolved | Mar 31, 2002 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2002 | Mar 31, 2002 | CARBON, TOTAL | MR | No | Yes | — | TT | — | Resolved | Mar 31, 2002 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2002 | Mar 31, 2002 | CARBON, TOTAL | MR | No | Yes | — | TT | — | Resolved | Mar 12, 2002 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2002 | Mar 31, 2002 | CARBON, TOTAL | MR | No | Yes | — | TT | — | Resolved | Mar 31, 2002 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2002 | Mar 31, 2002 | CARBON, TOTAL | MR | No | Yes | — | TT | — | Resolved | Mar 31, 2002 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2002 | Mar 31, 2002 | CARBON, TOTAL | MR | No | Yes | — | TT | — | Resolved | Mar 12, 2002 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2002 | Mar 31, 2002 | CARBON, TOTAL | MR | No | Yes | — | TT | — | Resolved | Mar 12, 2002 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2001 | Aug 31, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2001 | Total Coliform Rule |
| May 1, 2001 | May 31, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2001 | Total Coliform Rule |
| Jan 1, 1996 | Dec 31, 1996 | Benzo(a)pyrene | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Feb 26, 1996 | Synthetic Organic Chemicals |
| Jan 1, 1996 | Dec 31, 1996 | Benzo(a)pyrene | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Feb 26, 1996 | Synthetic Organic Chemicals |
| Jan 1, 1996 | Dec 31, 1996 | Benzo(a)pyrene | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Feb 26, 1996 | Synthetic Organic Chemicals |
| Aug 1, 1994 | Aug 31, 1994 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 1994 | Total Coliform Rule |
| Aug 1, 1994 | Aug 31, 1994 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 1994 | Total Coliform Rule |
| Aug 1, 1994 | Aug 31, 1994 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 1994 | Total Coliform Rule |
| Oct 1, 1991 | Oct 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 1991 | Total Coliform Rule |
| Oct 1, 1991 | Oct 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 1991 | Total Coliform Rule |
| Oct 1, 1991 | Oct 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 1991 | Total Coliform Rule |
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.