OTTOSEN WATER SUPPLY
Iowa - Community Water System - PWSID: IA4652011
System Information
| PWSID | IA4652011 |
| System Name | OTTOSEN 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 | WHITTEMORE |
| ZIP Code | 50598 |
| Address | ATTN BRIAN KLEIN NORTH IOWA ENVIR |
| Organization | OTTOSEN WATER SUPPLY |
| Phone | 515-320-1122 |
Population & Service
| Population Served | 41 |
| Service Connections | 31 |
Drinking Water Violations (43)
This water system has 43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 1, 2020 | Nov 30, 2020 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2020 | - | |
| Nov 1, 2020 | Nov 30, 2020 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2020 | - | |
| Nov 1, 2020 | Nov 30, 2020 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2020 | - | |
| Nov 1, 2020 | Nov 30, 2020 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2020 | - | |
| Nov 1, 2020 | Nov 30, 2020 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2020 | - | |
| Oct 1, 2020 | Sep 30, 2021 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Oct 1, 2020 | Sep 30, 2021 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Oct 1, 2020 | Sep 30, 2021 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Oct 1, 2020 | Sep 30, 2021 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Oct 1, 2014 | Sep 30, 2020 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Oct 1, 2014 | Sep 30, 2020 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Oct 1, 2014 | Sep 30, 2020 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Oct 1, 2014 | Sep 30, 2020 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Sep 1, 1998 | Sep 30, 1998 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1998 | - | |
| Sep 1, 1998 | Sep 30, 1998 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1998 | - | |
| Sep 1, 1998 | Sep 30, 1998 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1998 | - | |
| Sep 1, 1998 | Sep 30, 1998 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1998 | - | |
| Dec 1, 1992 | Dec 31, 1992 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1992 | - | |
| Dec 1, 1992 | Dec 31, 1992 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1992 | - | |
| Dec 1, 1992 | Dec 31, 1992 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1992 | - | |
| Dec 1, 1992 | Dec 31, 1992 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1992 | - | |
| Dec 1, 1992 | Dec 31, 1992 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 1992 | - | |
| Apr 1, 1989 | Mar 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Mar 31, 1993 | - | |
| Apr 1, 1989 | Mar 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Mar 31, 1993 | - | |
| Apr 1, 1989 | Mar 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Mar 31, 1993 | - | |
| Apr 1, 1989 | Mar 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Mar 31, 1993 | - | |
| Apr 1, 1989 | Mar 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Mar 31, 1993 | - | |
| Apr 1, 1989 | Mar 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Mar 31, 1993 | - | |
| Oct 1, 1984 | Sep 30, 1988 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1984 | Sep 30, 1988 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1984 | Sep 30, 1988 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1984 | Sep 30, 1988 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1984 | Sep 30, 1988 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Sep 30, 1988 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.