OTO WATER SUPPLY
Iowa - Community Water System - PWSID: IA9758023
System Information
| PWSID | IA9758023 |
| System Name | OTO 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 | Mar 17, 2026 |
Location & Contact
| State | Iowa |
| City | OTO |
| ZIP Code | 51044 |
| Address | ATTN DAVE DORALE |
| Organization | OTO WATER SUPPLY |
| Phone | 712-870-2092 |
Population & Service
| Population Served | 72 |
| Service Connections | 54 |
Drinking Water Violations (82)
This water system has 82 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 30, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Jan 30, 2025 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Aug 22, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Aug 22, 2024 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Sep 29, 2021 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Sep 29, 2021 | - | |
| Apr 1, 2008 | Apr 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2008 | - | |
| Apr 1, 2008 | Apr 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2008 | - | |
| Apr 1, 2008 | Apr 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2008 | - | |
| Apr 1, 2008 | Apr 30, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2008 | - | |
| Jul 1, 2002 | Jun 30, 2003 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2003 | - | |
| Jul 1, 2002 | Jun 30, 2003 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2003 | - | |
| Jul 1, 2002 | Jun 30, 2003 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2003 | - | |
| Oct 1, 1999 | Oct 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1999 | - | |
| Oct 1, 1999 | Oct 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1999 | - | |
| Oct 1, 1999 | Oct 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1999 | - | |
| Oct 1, 1999 | Oct 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1999 | - | |
| Oct 1, 1999 | Oct 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1999 | - | |
| May 1, 1996 | May 31, 1996 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 1996 | - | |
| May 1, 1996 | May 31, 1996 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 1996 | - | |
| May 1, 1996 | May 31, 1996 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 1996 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1993 | - | |
| Jun 1, 1993 | Jun 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 1993 | - | |
| Jun 1, 1993 | Jun 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 1993 | - | |
| Jun 1, 1993 | Jun 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 1993 | - | |
| Jun 1, 1993 | Jun 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 1993 | - | |
| Jun 1, 1993 | Jun 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 1993 | - | |
| Jun 1, 1993 | Jun 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 1993 | - | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 1989 | - | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 1989 | - | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 1989 | - | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 1989 | - | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 1989 | - | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 1989 | - | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 1989 | - | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 1989 | - |
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.