DENISON WATER SUPPLY
Iowa — Community Water System — PWSID: IA2424027
System Information
| PWSID | IA2424027 |
| System Name | DENISON 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 | DENISON |
| ZIP Code | 51442 |
| Address | ATTN LUKE GILLMOR WATER SUPT |
| Organization | DENISON WATER SUPPLY |
| Phone | 712-263-4458 |
Population & Service
| Population Served | 9,381 |
| Service Connections | 2,930 |
Drinking Water Violations (13)
This water system has 13 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2000 | Sep 30, 2001 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2001 | Nitrate Rule |
| Oct 1, 2000 | Sep 30, 2001 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2001 | Nitrate Rule |
| Oct 1, 2000 | Sep 30, 2001 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2001 | Nitrate Rule |
| Oct 1, 2000 | Sep 30, 2001 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2001 | Nitrate Rule |
| Oct 1, 2000 | Sep 30, 2001 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2001 | Nitrate Rule |
| Oct 1, 2000 | Sep 30, 2001 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2001 | Nitrate Rule |
| Oct 1, 2000 | Sep 30, 2001 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2001 | Nitrate Rule |
| Oct 1, 2000 | Sep 30, 2001 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2001 | Nitrate Rule |
| Oct 1, 1990 | Dec 31, 1990 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1990 | Nitrate Rule |
| Oct 1, 1990 | Dec 31, 1990 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1990 | Nitrate Rule |
| Oct 1, 1990 | Dec 31, 1990 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1990 | Nitrate Rule |
| Oct 1, 1990 | Dec 31, 1990 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1990 | Nitrate Rule |
| — | — | — | 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.