LITTLE SIOUX WATER DEPARTMENT
Iowa - Community Water System - PWSID: IA4333089
System Information
| PWSID | IA4333089 |
| System Name | LITTLE SIOUX WATER DEPARTMENT |
| 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 | Mar 17, 2026 |
Location & Contact
| State | Iowa |
| City | LITTLE SIOUX |
| ZIP Code | 51545-3036 |
| Address | ATTN WATER SUPT |
| Organization | LITTLE SIOUX WATER DEPARTMENT |
| Phone | 712-649-2211 |
Population & Service
| Population Served | 150 |
| Service Connections | 71 |
Drinking Water Violations (85)
This water system has 85 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, 2024 | - | MR | No | No | - | TT | - | Resolved | Jan 29, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Jan 29, 2025 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2024 | - | |
| Feb 20, 2023 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Feb 20, 2023 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Feb 20, 2023 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Aug 1, 2019 | Aug 31, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Aug 1, 2019 | Aug 31, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Aug 1, 2019 | Aug 31, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Aug 1, 2019 | Aug 31, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Aug 1, 2019 | Aug 31, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Aug 1, 2019 | Aug 31, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Aug 1, 2019 | Aug 31, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Aug 1, 2019 | Aug 31, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | .013 MG/L | 0.010 mg/L | - | Resolved | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | .013 MG/L | 0.010 mg/L | - | Resolved | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | .013 MG/L | 0.010 mg/L | - | Resolved | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | .013 MG/L | 0.010 mg/L | - | Resolved | Jun 30, 2015 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2006 | - | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1999 | - | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1999 | - | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1999 | - | |
| Feb 1, 1995 | Feb 28, 1995 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 1995 | - | |
| Feb 1, 1995 | Feb 28, 1995 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 1995 | - | |
| Feb 1, 1995 | Feb 28, 1995 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 1995 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 1991 | - |
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.