CALAMUS WATER SUPPLY
Iowa - Community Water System - PWSID: IA2320062
System Information
| PWSID | IA2320062 |
| System Name | CALAMUS 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 | CALAMUS |
| ZIP Code | 52729 |
| Address | ATTN MIKE LACEY |
| Organization | CALAMUS WATER SUPPLY |
| Phone | 563-246-2755 |
Population & Service
| Population Served | 356 |
| Service Connections | 185 |
Drinking Water Violations (40)
This water system has 40 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Aug 30, 2021 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Aug 30, 2021 | - | |
| Apr 1, 2020 | Apr 30, 2020 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2020 | - | |
| Apr 1, 2020 | Apr 30, 2020 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2020 | - | |
| Apr 1, 2020 | Apr 30, 2020 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2020 | - | |
| Apr 1, 2020 | Apr 30, 2020 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2020 | - | |
| Oct 1, 2002 | - | MR | No | No | - | TT | - | Resolved | Jul 8, 2003 | - | |
| Oct 1, 2002 | - | MR | No | No | - | TT | - | Resolved | Jul 8, 2003 | - | |
| Oct 1, 2002 | - | MR | No | No | - | TT | - | Resolved | Jul 8, 2003 | - | |
| Oct 1, 2002 | - | MR | No | No | - | TT | - | Resolved | Jul 8, 2003 | - | |
| Sep 1, 1996 | Sep 30, 1996 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1996 | - | |
| Sep 1, 1996 | Sep 30, 1996 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1996 | - | |
| Sep 1, 1996 | Sep 30, 1996 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1996 | - | |
| Sep 1, 1996 | Sep 30, 1996 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1996 | - | |
| Oct 1, 1995 | Sep 30, 1996 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1996 | - | |
| Oct 1, 1995 | Sep 30, 1996 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1996 | - | |
| Oct 1, 1995 | Sep 30, 1996 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1996 | - | |
| Sep 1, 1994 | Sep 30, 1994 | MR | No | Yes | - | 1 mg/L | - | Resolved | Sep 30, 1994 | - | |
| Sep 1, 1994 | Sep 30, 1994 | MR | No | Yes | - | 1 mg/L | - | Resolved | Sep 30, 1994 | - | |
| Sep 1, 1994 | Sep 30, 1994 | MR | No | Yes | - | 1 mg/L | - | Resolved | Sep 30, 1994 | - | |
| Sep 1, 1994 | Sep 30, 1994 | MR | No | Yes | - | 1 mg/L | - | Resolved | Sep 30, 1994 | - | |
| Nov 1, 1993 | Nov 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1993 | - | |
| Nov 1, 1993 | Nov 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1993 | - | |
| Nov 1, 1993 | Nov 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1993 | - | |
| Nov 1, 1993 | Nov 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1993 | - | |
| Nov 1, 1993 | Nov 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1993 | - | |
| Nov 1, 1993 | Nov 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1993 | - | |
| Nov 1, 1993 | Nov 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1993 | - | |
| Nov 1, 1993 | Nov 30, 1993 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1993 | - | |
| Oct 1, 1993 | Sep 30, 1994 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1994 | - | |
| Oct 1, 1993 | Sep 30, 1994 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1994 | - | |
| Oct 1, 1993 | Sep 30, 1994 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1994 | - | |
| Oct 1, 1991 | Sep 30, 1994 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 1994 | - | |
| Oct 1, 1991 | Sep 30, 1994 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 1994 | - | |
| Oct 1, 1991 | Sep 30, 1994 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 1994 | - | |
| - | - | - | 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.