SUPERIOR WATER SYSTEM
Iowa - Community Water System - PWSID: IA3073001
System Information
| PWSID | IA3073001 |
| System Name | SUPERIOR WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| 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 | SUPERIOR |
| ZIP Code | 51363 |
| Address | ATTN TIMOTHY MATTHEWS WATER SUPT |
| Organization | SUPERIOR WATER SYSTEM |
| Phone | 712-858-4528 |
Population & Service
| Population Served | 132 |
| Service Connections | 72 |
Drinking Water Violations (56)
This water system has 56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2019 | - | |
| Jun 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2019 | - | |
| Jun 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2019 | - | |
| Jun 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2019 | - | |
| Jun 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Jul 17, 2019 | - | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2003 | - | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2003 | - | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2003 | - | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2003 | - | |
| Aug 1, 1996 | Aug 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1996 | - | |
| Aug 1, 1996 | Aug 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1996 | - | |
| Aug 1, 1996 | Aug 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1996 | - | |
| Aug 1, 1996 | Aug 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1996 | - | |
| Aug 1, 1996 | Aug 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1996 | - | |
| Aug 1, 1996 | Aug 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1996 | - | |
| Jan 1, 1990 | Dec 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1990 | Dec 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1990 | Dec 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1990 | Dec 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1990 | Dec 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1990 | Dec 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1990 | Dec 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1990 | Dec 31, 1993 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 1993 | - | |
| Oct 1, 1988 | - | MR | No | No | - | TT | - | Resolved | Apr 5, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MCL | Yes | No | 23.24 | 10 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MCL | Yes | No | 23.24 | 10 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MCL | Yes | No | 23.24 | 10 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MCL | Yes | No | 23.24 | 10 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MR | No | Yes | - | 2 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 31, 1989 | - | |
| Apr 1, 1986 | Mar 31, 1989 | MCL | Yes | No | 23.24 | 10 mg/L | - | Resolved | Mar 31, 1989 | - | |
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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.