SHEFFIELD WATER SUPPLY
Iowa — Community Water System — PWSID: IA3570037
System Information
| PWSID | IA3570037 |
| System Name | SHEFFIELD 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 | SHEFFIELD |
| ZIP Code | 50475 |
| Address | ATTN PAT NUEHRING |
| Organization | SHEFFIELD WATER SUPPLY |
| Phone | 641-892-4718 |
Population & Service
| Population Served | 1,130 |
| Service Connections | 502 |
Drinking Water Violations (30)
This water system has 30 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2014 | Jul 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2014 | Total Coliform Rule |
| Jul 1, 2014 | Jul 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2014 | Total Coliform Rule |
| Jul 1, 2014 | Jul 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2014 | Total Coliform Rule |
| Jul 1, 2014 | Jul 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2014 | Total Coliform Rule |
| Oct 27, 2009 | Dec 28, 2009 | Other | No | No | — | — | — | Resolved | Dec 28, 2009 | Miscellaneous Other Rules | |
| Oct 27, 2009 | Dec 28, 2009 | Other | No | No | — | — | — | Resolved | Dec 28, 2009 | Miscellaneous Other Rules | |
| Oct 27, 2009 | Dec 28, 2009 | Other | No | No | — | — | — | Resolved | Dec 28, 2009 | Miscellaneous Other Rules | |
| Oct 27, 2009 | Dec 28, 2009 | Other | No | No | — | — | — | Resolved | Dec 28, 2009 | Miscellaneous Other Rules | |
| Oct 27, 2009 | Dec 28, 2009 | Other | No | No | — | — | — | Resolved | Dec 28, 2009 | Miscellaneous Other Rules | |
| Oct 27, 2009 | Dec 28, 2009 | Other | No | No | — | — | — | Resolved | Dec 28, 2009 | Miscellaneous Other Rules | |
| Oct 1, 2008 | Sep 30, 2009 | Nitrate | MCL | Yes | No | 13.58 MG/L | 10 mg/L | — | Resolved | Sep 30, 2009 | Nitrate Rule |
| Oct 1, 2008 | Sep 30, 2009 | Nitrate | MCL | Yes | No | 13.58 MG/L | 10 mg/L | — | Resolved | Sep 30, 2009 | Nitrate Rule |
| Oct 1, 2008 | Sep 30, 2009 | Nitrate | MCL | Yes | No | 13.58 MG/L | 10 mg/L | — | Resolved | Sep 30, 2009 | Nitrate Rule |
| Oct 1, 2008 | Sep 30, 2009 | Nitrate | MCL | Yes | No | 13.58 MG/L | 10 mg/L | — | Resolved | Sep 30, 2009 | Nitrate Rule |
| Oct 1, 2008 | Sep 30, 2009 | Nitrate | MCL | Yes | No | 13.58 MG/L | 10 mg/L | — | Resolved | Sep 30, 2009 | Nitrate Rule |
| Oct 1, 2008 | Sep 30, 2009 | Nitrate | MCL | Yes | No | 13.58 MG/L | 10 mg/L | — | Resolved | Sep 30, 2009 | Nitrate Rule |
| Jul 1, 2005 | Aug 31, 2007 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2007 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2005 | Aug 31, 2007 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2007 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2005 | Aug 31, 2007 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2007 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2005 | Aug 31, 2007 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2007 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2005 | Aug 31, 2007 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2007 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 19, 1999 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 16, 1999 | Consumer Confidence Rule |
| Oct 19, 1999 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 16, 1999 | Consumer Confidence Rule |
| Oct 19, 1999 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 16, 1999 | Consumer Confidence Rule |
| Jan 1, 1994 | Dec 31, 1996 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1996 | Nitrate Rule |
| Jan 1, 1994 | Dec 31, 1996 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1996 | Nitrate Rule |
| Jan 1, 1994 | Dec 31, 1996 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1996 | Nitrate Rule |
| — | — | — | 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.