MAHASKA, CITY OF
Kansas - Community Water System - PWSID: KS2020102
System Information
| PWSID | KS2020102 |
| System Name | MAHASKA, CITY OF |
| 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 | Apr 13, 1979 |
| Last Reported | Feb 25, 2026 |
Location & Contact
| State | Kansas |
| City | MAHASKA |
| ZIP Code | 66955 |
| Address | 416 S SCHOOL AVE |
| Organization | GALLOWAY, TIM |
| Phone | 785-245-3029 |
Population & Service
| Population Served | 44 |
| Service Connections | 42 |
Drinking Water Violations (123)
This water system has 123 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 2, 2025 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MON | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MON | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MON | No | No | - | - | - | Resolved | Oct 31, 2024 | - | |
| May 28, 2024 | - | TT | Yes | No | - | - | - | Resolved | Sep 7, 2024 | - | |
| May 28, 2024 | - | TT | Yes | No | - | - | - | Resolved | Sep 7, 2024 | - | |
| May 28, 2024 | - | TT | Yes | No | - | - | - | Resolved | Sep 7, 2024 | - | |
| May 28, 2024 | - | TT | Yes | No | - | - | - | Resolved | Sep 7, 2024 | - | |
| Dec 31, 2020 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Dec 30, 2017 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2015 | - | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2015 | - | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2015 | - | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2015 | - | |
| Oct 1, 2015 | Dec 31, 2015 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2014 | Sep 30, 2014 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2014 | - | |
| Jul 1, 2014 | Sep 30, 2014 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2014 | - | |
| Jul 1, 2014 | Sep 30, 2014 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2014 | - | |
| Jul 1, 2014 | Sep 30, 2014 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2014 | - | |
| Jul 1, 2014 | Sep 30, 2014 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Jun 30, 2014 | - | |
| Jan 1, 2014 | Mar 31, 2014 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2014 | - | |
| Jan 1, 2014 | Mar 31, 2014 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2014 | - | |
| Jan 1, 2014 | Mar 31, 2014 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2014 | - | |
| Jan 1, 2014 | Mar 31, 2014 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2014 | - | |
| Jan 1, 2014 | Mar 31, 2014 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Mar 31, 2014 | - | |
| Dec 1, 2013 | Dec 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2013 | - | |
| Dec 1, 2013 | Dec 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2013 | - | |
| Dec 1, 2013 | Dec 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2013 | - | |
| Dec 1, 2013 | Dec 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2013 | - | |
| Oct 1, 2013 | Dec 31, 2013 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2013 | - | |
| Oct 1, 2013 | Dec 31, 2013 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2013 | - | |
| Oct 1, 2013 | Dec 31, 2013 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2013 | - | |
| Oct 1, 2013 | Dec 31, 2013 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2013 | - | |
| Oct 1, 2013 | Dec 31, 2013 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Dec 31, 2013 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2013 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2013 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MCL | Yes | No | 8 PCI/L | 5 pCi/L | 5 | Resolved | Sep 30, 2013 | - |
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.