DECORAH WATER DEPARTMENT
Iowa — Community Water System — PWSID: IA9630012
System Information
| PWSID | IA9630012 |
| System Name | DECORAH WATER DEPARTMENT |
| 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 | DECORAH |
| ZIP Code | 52101-0138 |
| Address | ATTN TODD IHDE WATER SUPERINTENDENT |
| Organization | DECORAH WATER DEPARTMENT |
| Phone | 563-382-5171 |
Population & Service
| Population Served | 7,615 |
| Service Connections | 2,800 |
Drinking Water Violations (17)
This water system has 17 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, 2010 | Jan 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | Total Coliform Rule |
| Jan 1, 2010 | Jan 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | Total Coliform Rule |
| Jan 1, 2010 | Jan 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | Total Coliform Rule |
| Jan 1, 2010 | Jan 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | Total Coliform Rule |
| Apr 1, 2007 | Jun 30, 2007 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2007 | Nitrate Rule |
| Oct 1, 1995 | Dec 31, 1995 | Vinyl chloride | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1995 | Volatile Organic Chemicals |
| Oct 1, 1995 | Dec 31, 1995 | Vinyl chloride | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1995 | Volatile Organic Chemicals |
| Oct 1, 1995 | Dec 31, 1995 | Vinyl chloride | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1995 | Volatile Organic Chemicals |
| Oct 1, 1995 | Dec 31, 1995 | Vinyl chloride | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1995 | Volatile Organic Chemicals |
| Oct 1, 1995 | Dec 31, 1995 | Vinyl chloride | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1995 | Volatile Organic Chemicals |
| Oct 1, 1995 | Dec 31, 1995 | Vinyl chloride | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1995 | Volatile Organic Chemicals |
| Oct 1, 1995 | Dec 31, 1995 | Vinyl chloride | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1995 | Volatile Organic Chemicals |
| Oct 1, 1995 | Dec 31, 1995 | Vinyl chloride | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1995 | Volatile Organic Chemicals |
| Oct 1, 1995 | Dec 31, 1995 | Vinyl chloride | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1995 | Volatile Organic Chemicals |
| — | — | — | 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.