KNIERIM WATER SUPPLY
Iowa - Community Water System - PWSID: IA1340001
System Information
| PWSID | IA1340001 |
| System Name | KNIERIM 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 | Mar 4, 1980 |
| Last Reported | Mar 17, 2026 |
Location & Contact
| State | Iowa |
| City | FORT DODGE |
| ZIP Code | 50501 |
| Address | ATTN JOHN HORRELL |
| Organization | KNIERIM WATER SUPPLY |
| Phone | 515-571-5070 |
Population & Service
| Population Served | 53 |
| Service Connections | 30 |
Drinking Water Violations (86)
This water system has 86 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 2024 | Aug 31, 2024 | MCL | Yes | No | 1.7539 MG/L | 1 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MCL | Yes | No | 1.7539 MG/L | 1 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MCL | Yes | No | 1.7539 MG/L | 1 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MCL | Yes | No | 1.7539 MG/L | 1 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MCL | Yes | No | 1.7539 MG/L | 1 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MCL | Yes | No | 1.7539 MG/L | 1 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MCL | Yes | No | 1.7539 MG/L | 1 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MCL | Yes | No | 1.1235 MG/L | 1 mg/L | - | Resolved | Jul 31, 2024 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MCL | Yes | No | 1.1235 MG/L | 1 mg/L | - | Resolved | Jul 31, 2024 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MCL | Yes | No | 1.1235 MG/L | 1 mg/L | - | Resolved | Jul 31, 2024 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MCL | Yes | No | 1.1235 MG/L | 1 mg/L | - | Resolved | Jul 31, 2024 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MCL | Yes | No | 1.1235 MG/L | 1 mg/L | - | Resolved | Jul 31, 2024 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MCL | Yes | No | 1.1235 MG/L | 1 mg/L | - | Resolved | Jul 31, 2024 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MCL | Yes | No | 1.1235 MG/L | 1 mg/L | - | Resolved | Jul 31, 2024 | - | |
| Jan 1, 2023 | Jan 31, 2023 | MCL | Yes | No | 1.951 MG/L | 1 mg/L | - | Resolved | Jan 31, 2023 | - | |
| Jan 1, 2023 | Jan 31, 2023 | MCL | Yes | No | 1.951 MG/L | 1 mg/L | - | Resolved | Jan 31, 2023 | - | |
| Jan 1, 2023 | Jan 31, 2023 | MCL | Yes | No | 1.951 MG/L | 1 mg/L | - | Resolved | Jan 31, 2023 | - | |
| Jan 1, 2023 | Jan 31, 2023 | MCL | Yes | No | 1.951 MG/L | 1 mg/L | - | Resolved | Jan 31, 2023 | - | |
| Jan 1, 2023 | Jan 31, 2023 | MCL | Yes | No | 1.951 MG/L | 1 mg/L | - | Resolved | Jan 31, 2023 | - | |
| Jan 1, 2023 | Jan 31, 2023 | MCL | Yes | No | 1.951 MG/L | 1 mg/L | - | Resolved | Jan 31, 2023 | - | |
| Jan 1, 2023 | Jan 31, 2023 | MCL | Yes | No | 1.951 MG/L | 1 mg/L | - | Resolved | Jan 31, 2023 | - | |
| Nov 1, 2022 | Nov 30, 2022 | MCL | Yes | No | 2.0475 MG/L | 1 mg/L | - | Resolved | Nov 30, 2022 | - | |
| Nov 1, 2022 | Nov 30, 2022 | MCL | Yes | No | 2.0475 MG/L | 1 mg/L | - | Resolved | Nov 30, 2022 | - | |
| Nov 1, 2022 | Nov 30, 2022 | MCL | Yes | No | 2.0475 MG/L | 1 mg/L | - | Resolved | Nov 30, 2022 | - | |
| Nov 1, 2022 | Nov 30, 2022 | MCL | Yes | No | 2.0475 MG/L | 1 mg/L | - | Resolved | Nov 30, 2022 | - | |
| Nov 1, 2022 | Nov 30, 2022 | MCL | Yes | No | 2.0475 MG/L | 1 mg/L | - | Resolved | Nov 30, 2022 | - | |
| Nov 1, 2022 | Nov 30, 2022 | MCL | Yes | No | 2.0475 MG/L | 1 mg/L | - | Resolved | Nov 30, 2022 | - | |
| Nov 1, 2022 | Nov 30, 2022 | MCL | Yes | No | 2.0475 MG/L | 1 mg/L | - | Resolved | Nov 30, 2022 | - | |
| Nov 1, 2022 | Nov 30, 2022 | MCL | Yes | No | 2.0475 MG/L | 1 mg/L | - | Resolved | Nov 30, 2022 | - | |
| Oct 1, 2022 | Oct 31, 2022 | MCL | Yes | No | 1.6 MG/L | 1 mg/L | - | Resolved | Oct 31, 2022 | - | |
| Oct 1, 2022 | Oct 31, 2022 | MCL | Yes | No | 1.6 MG/L | 1 mg/L | - | Resolved | Oct 31, 2022 | - | |
| Oct 1, 2022 | Oct 31, 2022 | MCL | Yes | No | 1.6 MG/L | 1 mg/L | - | Resolved | Oct 31, 2022 | - | |
| Oct 1, 2022 | Oct 31, 2022 | MCL | Yes | No | 1.6 MG/L | 1 mg/L | - | Resolved | Oct 31, 2022 | - | |
| Oct 1, 2022 | Oct 31, 2022 | MCL | Yes | No | 1.6 MG/L | 1 mg/L | - | Resolved | Oct 31, 2022 | - | |
| Oct 1, 2022 | Oct 31, 2022 | MCL | Yes | No | 1.6 MG/L | 1 mg/L | - | Resolved | Oct 31, 2022 | - | |
| Oct 1, 2022 | Oct 31, 2022 | MCL | Yes | No | 1.6 MG/L | 1 mg/L | - | Resolved | Oct 31, 2022 | - | |
| Oct 1, 2022 | Oct 31, 2022 | MCL | Yes | No | 1.6 MG/L | 1 mg/L | - | Resolved | Oct 31, 2022 | - | |
| Nov 1, 2020 | Nov 30, 2020 | MCL | Yes | No | 1.157 MG/L | 1 mg/L | - | Resolved | Nov 30, 2020 | - | |
| Nov 1, 2020 | Nov 30, 2020 | MCL | Yes | No | 1.157 MG/L | 1 mg/L | - | Resolved | Nov 30, 2020 | - | |
| Nov 1, 2020 | Nov 30, 2020 | MCL | Yes | No | 1.157 MG/L | 1 mg/L | - | Resolved | Nov 30, 2020 | - | |
| Nov 1, 2020 | Nov 30, 2020 | MCL | Yes | No | 1.157 MG/L | 1 mg/L | - | Resolved | Nov 30, 2020 | - | |
| Oct 1, 2020 | Oct 31, 2020 | MCL | Yes | No | 1.765 MG/L | 1 mg/L | - | Resolved | Oct 31, 2020 | - | |
| Oct 1, 2020 | Oct 31, 2020 | MCL | Yes | No | 1.765 MG/L | 1 mg/L | - | Resolved | Oct 31, 2020 | - | |
| Oct 1, 2020 | Oct 31, 2020 | MCL | Yes | No | 1.765 MG/L | 1 mg/L | - | Resolved | Oct 31, 2020 | - | |
| Oct 1, 2020 | Oct 31, 2020 | MCL | Yes | No | 1.765 MG/L | 1 mg/L | - | Resolved | Oct 31, 2020 | - | |
| Aug 1, 2019 | Aug 31, 2019 | MCL | Yes | No | 1.5 MG/L | 1 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Aug 1, 2019 | Aug 31, 2019 | MCL | Yes | No | 1.5 MG/L | 1 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Aug 1, 2019 | Aug 31, 2019 | MCL | Yes | No | 1.5 MG/L | 1 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Aug 1, 2019 | Aug 31, 2019 | MCL | Yes | No | 1.5 MG/L | 1 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Jul 1, 2006 | Jul 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2006 | - |
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.