DAYTON MUNICIPAL WATER SUPPLY
Iowa — Community Water System — PWSID: IA9425011
System Information
| PWSID | IA9425011 |
| System Name | DAYTON MUNICIPAL 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 | FORT DODGE |
| ZIP Code | 50501 |
| Address | ATTN JOHN HORRELL WATER SUPT |
| Organization | DAYTON MUNICIPAL WATER SUPPLY |
| Phone | 515-571-5070 |
Population & Service
| Population Served | 772 |
| Service Connections | 358 |
Drinking Water Violations (31)
This water system has 31 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 1, 2024 | Nov 30, 2024 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Archived | Nov 30, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Nov 1, 2024 | Nov 30, 2024 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Archived | Nov 30, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Nov 1, 2024 | Nov 30, 2024 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Archived | Nov 30, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Nov 1, 2024 | Nov 30, 2024 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Archived | Nov 30, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Sep 1, 1997 | Sep 30, 1997 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 1997 | Nitrate Rule |
| Sep 1, 1997 | Sep 30, 1997 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 1997 | Nitrate Rule |
| Sep 1, 1997 | Sep 30, 1997 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 1997 | Nitrate Rule |
| Sep 1, 1995 | Sep 30, 1995 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Sep 30, 1995 | Nitrate Rule |
| Sep 1, 1995 | Sep 30, 1995 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Sep 30, 1995 | Nitrate Rule |
| Oct 1, 1993 | Sep 30, 1996 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 1996 | Nitrate Rule |
| Oct 1, 1993 | Sep 30, 1996 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 1996 | Nitrate Rule |
| Oct 1, 1992 | Sep 30, 1995 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 1995 | Nitrate Rule |
| Oct 1, 1992 | Sep 30, 1995 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 1995 | Nitrate Rule |
| Oct 1, 1984 | Sep 30, 1985 | Fluoride | MCL | Yes | No | 3.1 | 4.0 mg/L | 2.2 | Archived | Sep 30, 1985 | Inorganic Chemicals |
| Oct 1, 1983 | Sep 30, 1984 | Fluoride | MCL | Yes | No | 2.5 | 4.0 mg/L | 2.2 | Archived | Sep 30, 1984 | Inorganic Chemicals |
| Apr 18, 1983 | May 17, 1983 | Fluoride | MCL | Yes | No | 2.3 | 4.0 mg/L | 2 | Archived | May 17, 1983 | Inorganic Chemicals |
| Nov 10, 1979 | Nov 9, 1980 | Fluoride | MCL | Yes | No | 2.5 | 4.0 mg/L | 2 | Archived | Nov 9, 1980 | Inorganic Chemicals |
| Nov 10, 1979 | Nov 9, 1980 | Fluoride | MCL | Yes | No | 2.7 | 4.0 mg/L | 141.11 | Archived | Nov 9, 1980 | Inorganic Chemicals |
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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.