WILLIAMSBURG PUBLIC WATER SUPPLY
Iowa — Community Water System — PWSID: IA4884023
System Information
| PWSID | IA4884023 |
| System Name | WILLIAMSBURG PUBLIC WATER SUPPLY |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 07 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 27, 1979 |
| Last Reported | Dec 19, 2025 |
Location & Contact
| State | Iowa |
| City | WILLIAMSBURG |
| ZIP Code | 52361 |
| Address | ATTN PUBLIC WORKS DIR |
| Organization | WILLIAMSBURG PUBLIC WATER SUPPLY |
| Phone | 319-330-8638 |
Population & Service
| Population Served | 3,345 |
| Service Connections | 1,332 |
Drinking Water Violations (73)
This water system has 73 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 21, 2023 | — | Groundwater Rule | Other | No | No | — | — | — | Resolved | Sep 26, 2025 | Ground Water Rule |
| Dec 21, 2023 | — | Groundwater Rule | Other | No | No | — | — | — | Resolved | Sep 26, 2025 | Ground Water Rule |
| Dec 21, 2023 | — | Groundwater Rule | Other | No | No | — | — | — | Resolved | Sep 26, 2025 | Ground Water Rule |
| Oct 1, 2018 | Dec 31, 2018 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2018 | Lead and Copper Rule |
| Oct 1, 2018 | Dec 31, 2018 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2018 | Lead and Copper Rule |
| Oct 1, 2018 | Dec 31, 2018 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2018 | Lead and Copper Rule |
| Oct 1, 2018 | Dec 31, 2018 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2018 | Lead and Copper Rule |
| Oct 1, 2018 | Dec 31, 2018 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2018 | Lead and Copper Rule |
| Jul 1, 2017 | Jun 30, 2018 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2018 | Nitrate Rule |
| Jul 1, 2017 | Jun 30, 2018 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2018 | Nitrate Rule |
| Jul 1, 2017 | Jun 30, 2018 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2018 | Nitrate Rule |
| Jul 1, 2017 | Jun 30, 2018 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2018 | Nitrate Rule |
| Feb 1, 2017 | Feb 28, 2017 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Feb 28, 2017 | Nitrate Rule |
| Feb 1, 2017 | Feb 28, 2017 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Feb 28, 2017 | Nitrate Rule |
| Feb 1, 2017 | Feb 28, 2017 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Feb 28, 2017 | Nitrate Rule |
| Feb 1, 2017 | Feb 28, 2017 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Feb 28, 2017 | Nitrate Rule |
| Feb 1, 2017 | Feb 28, 2017 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Feb 28, 2017 | Nitrate Rule |
| Feb 1, 2017 | Feb 28, 2017 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Feb 28, 2017 | Nitrate Rule |
| Feb 1, 2017 | Feb 28, 2017 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Feb 28, 2017 | Nitrate Rule |
| Feb 1, 2017 | Feb 28, 2017 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Feb 28, 2017 | Nitrate Rule |
| Jul 1, 2013 | Jul 31, 2013 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jul 31, 2013 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jul 31, 2013 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jul 31, 2013 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jul 31, 2013 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jul 31, 2013 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jul 31, 2013 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jul 31, 2013 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jul 31, 2013 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jul 31, 2013 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jul 31, 2013 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jul 31, 2013 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jul 31, 2013 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jul 31, 2013 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Jul 31, 2013 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jul 31, 2013 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2012 | Jun 30, 2012 | Nitrite | MCL | Yes | No | 1.48 MG/L | 1 mg/L | — | Resolved | Jun 30, 2012 | Nitrate Rule |
| Apr 1, 2012 | Jun 30, 2012 | Nitrite | MCL | Yes | No | 1.48 MG/L | 1 mg/L | — | Resolved | Jun 30, 2012 | Nitrate Rule |
| Apr 1, 2012 | Jun 30, 2012 | Nitrite | MCL | Yes | No | 1.48 MG/L | 1 mg/L | — | Resolved | Jun 30, 2012 | Nitrate Rule |
| Apr 1, 2012 | Jun 30, 2012 | Nitrite | MCL | Yes | No | 1.48 MG/L | 1 mg/L | — | Resolved | Jun 30, 2012 | Nitrate Rule |
| Apr 1, 2012 | Jun 30, 2012 | Nitrite | MCL | Yes | No | 1.48 MG/L | 1 mg/L | — | Resolved | Jun 30, 2012 | Nitrate Rule |
| Nov 1, 2009 | Nov 30, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2009 | Total Coliform Rule |
| Nov 1, 2009 | Nov 30, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2009 | Total Coliform Rule |
| Nov 1, 2009 | Nov 30, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2009 | Total Coliform Rule |
| Nov 1, 2009 | Nov 30, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2009 | Total Coliform Rule |
| May 1, 2001 | May 31, 2001 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | May 31, 2001 | Nitrate Rule |
| May 1, 2001 | May 31, 2001 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | May 31, 2001 | Nitrate Rule |
| May 1, 2001 | May 31, 2001 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | May 31, 2001 | Nitrate Rule |
| May 1, 2001 | May 31, 2001 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | May 31, 2001 | Nitrate Rule |
| May 1, 2001 | May 31, 2001 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | May 31, 2001 | Nitrate Rule |
| May 1, 2001 | May 31, 2001 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | May 31, 2001 | Nitrate Rule |
| May 1, 2001 | May 31, 2001 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | May 31, 2001 | Nitrate Rule |
| Jun 1, 1998 | Jun 30, 1998 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Jun 30, 1998 | Nitrate Rule |
| Jun 1, 1998 | Jun 30, 1998 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Jun 30, 1998 | Nitrate Rule |
| Jun 1, 1998 | Jun 30, 1998 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Jun 30, 1998 | Nitrate Rule |
| May 1, 1998 | May 31, 1998 | Nitrite | MCL | Yes | No | 1.34 | 1 mg/L | — | Resolved | May 31, 1998 | Nitrate Rule |
| May 1, 1998 | May 31, 1998 | Nitrite | MCL | Yes | No | 1.34 | 1 mg/L | — | Resolved | May 31, 1998 | Nitrate Rule |
| May 1, 1998 | May 31, 1998 | Nitrite | MCL | Yes | No | 1.34 | 1 mg/L | — | Resolved | May 31, 1998 | Nitrate 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.