DAWSON WATER WORKS
Iowa - Community Water System - PWSID: IA2525010
System Information
| PWSID | IA2525010 |
| System Name | DAWSON WATER WORKS |
| 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 | Jun 17, 2026 |
Location & Contact
| State | Iowa |
| City | DAWSON |
| ZIP Code | 50066 |
| Address | ATTN LANETTE WEBB WATER OPERATOR |
| Organization | DAWSON WATER WORKS |
| Phone | 515-979-6728 |
Population & Service
| Population Served | 116 |
| Service Connections | 81 |
Drinking Water Violations (137)
This water system has 137 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 1, 2026 | Mar 31, 2026 | MCL | Yes | No | 12 MG/L | 10 mg/L | - | Archived | Mar 31, 2026 | - | |
| Mar 1, 2026 | Mar 31, 2026 | MCL | Yes | No | 12 MG/L | 10 mg/L | - | Archived | Mar 31, 2026 | - | |
| Mar 1, 2026 | Mar 31, 2026 | MCL | Yes | No | 12 MG/L | 10 mg/L | - | Archived | Mar 31, 2026 | - | |
| Feb 1, 2026 | Feb 28, 2026 | MCL | Yes | No | 11 MG/L | 10 mg/L | - | Archived | Feb 28, 2026 | - | |
| Feb 1, 2026 | Feb 28, 2026 | MCL | Yes | No | 11 MG/L | 10 mg/L | - | Archived | Feb 28, 2026 | - | |
| Feb 1, 2026 | Feb 28, 2026 | MCL | Yes | No | 11 MG/L | 10 mg/L | - | Archived | Feb 28, 2026 | - | |
| Feb 1, 2026 | Feb 28, 2026 | MCL | Yes | No | 11 MG/L | 10 mg/L | - | Archived | Feb 28, 2026 | - | |
| Dec 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 11 MG/L | 10 mg/L | - | Archived | Dec 31, 2025 | - | |
| Dec 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 11 MG/L | 10 mg/L | - | Archived | Dec 31, 2025 | - | |
| Dec 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 11 MG/L | 10 mg/L | - | Archived | Dec 31, 2025 | - | |
| Dec 1, 2025 | Dec 31, 2025 | MCL | Yes | No | 11 MG/L | 10 mg/L | - | Archived | Dec 31, 2025 | - | |
| Oct 20, 2025 | - | MR | No | No | - | TT | - | Resolved | Nov 17, 2025 | - | |
| Oct 20, 2025 | - | MR | No | No | - | TT | - | Resolved | Nov 17, 2025 | - | |
| Oct 1, 2025 | Oct 31, 2025 | MCL | Yes | No | 11 MG/L | 10 mg/L | - | Archived | Oct 31, 2025 | - | |
| Oct 1, 2025 | Oct 31, 2025 | MCL | Yes | No | 11 MG/L | 10 mg/L | - | Archived | Oct 31, 2025 | - | |
| Oct 1, 2025 | Oct 31, 2025 | MCL | Yes | No | 11 MG/L | 10 mg/L | - | Archived | Oct 31, 2025 | - | |
| Oct 1, 2025 | Oct 31, 2025 | MCL | Yes | No | 11 MG/L | 10 mg/L | - | Archived | Oct 31, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 0.006 mg/L | - | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 0.006 mg/L | - | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 0.006 mg/L | - | Archived | Sep 30, 2025 | - | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Jul 31, 2025 | - | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Jul 31, 2025 | - | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Jul 31, 2025 | - | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Jul 31, 2025 | - | |
| May 1, 2025 | May 31, 2025 | MR | No | No | - | TT | - | Resolved | May 31, 2025 | - | |
| May 1, 2025 | May 31, 2025 | MR | No | No | - | TT | - | Resolved | May 31, 2025 | - | |
| May 1, 2025 | May 31, 2025 | MR | No | No | - | TT | - | Resolved | May 31, 2025 | - | |
| May 1, 2025 | May 31, 2025 | MR | No | No | - | TT | - | Resolved | May 31, 2025 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Nov 19, 2023 | - | Other | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| Nov 19, 2023 | - | Other | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| Nov 19, 2023 | - | Other | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| Nov 19, 2023 | - | Other | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Oct 2, 2013 | - | |
| Jun 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2007 | - |
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.