IRWIN MUNICIPAL SUPPLY
Iowa — Community Water System — PWSID: IA8340099
System Information
| PWSID | IA8340099 |
| System Name | IRWIN MUNICIPAL SUPPLY |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| 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 | IRWIN |
| ZIP Code | 51446 |
| Address | ATTN WATER SUPT |
| Organization | IRWIN MUNICIPAL SUPPLY |
| Phone | 712-782-3332 |
Population & Service
| Population Served | 313 |
| Service Connections | 177 |
Drinking Water Violations (52)
This water system has 52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| May 1, 2025 | May 31, 2025 | MON | No | Yes | — | — | — | Resolved | May 31, 2025 | — | |
| May 1, 2025 | May 31, 2025 | MON | No | Yes | — | — | — | Resolved | May 31, 2025 | — | |
| May 1, 2025 | May 31, 2025 | MON | No | Yes | — | — | — | Resolved | May 31, 2025 | — | |
| May 1, 2025 | May 31, 2025 | MON | No | Yes | — | — | — | Resolved | May 31, 2025 | — | |
| Dec 1, 2024 | Dec 31, 2024 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2024 | — | |
| Dec 1, 2024 | Dec 31, 2024 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2024 | — | |
| Dec 1, 2024 | Dec 31, 2024 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2024 | — | |
| Dec 1, 2024 | Dec 31, 2024 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2024 | — | |
| Dec 1, 2024 | Dec 31, 2024 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2024 | — | |
| Dec 1, 2024 | Dec 31, 2024 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2024 | — | |
| Oct 1, 2024 | Oct 31, 2024 | MON | No | Yes | — | — | — | Resolved | Oct 31, 2024 | — | |
| Oct 1, 2024 | Oct 31, 2024 | MON | No | Yes | — | — | — | Resolved | Oct 31, 2024 | — | |
| Oct 1, 2024 | Oct 31, 2024 | MON | No | Yes | — | — | — | Resolved | Oct 31, 2024 | — | |
| Oct 1, 2024 | Oct 31, 2024 | MON | No | Yes | — | — | — | Resolved | Oct 31, 2024 | — | |
| Dec 1, 2023 | Dec 31, 2023 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2023 | — | |
| Dec 1, 2023 | Dec 31, 2023 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2023 | — | |
| Dec 1, 2023 | Dec 31, 2023 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2023 | — | |
| Dec 1, 2023 | Dec 31, 2023 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2023 | — | |
| Jul 1, 2022 | Jul 31, 2022 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2022 | — | |
| Jul 1, 2022 | Jul 31, 2022 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2022 | — | |
| Jul 1, 2022 | Jul 31, 2022 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2022 | — | |
| Jul 1, 2022 | Jul 31, 2022 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2022 | — | |
| Jul 1, 2022 | Jul 31, 2022 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2022 | — | |
| Jul 1, 2022 | Jul 31, 2022 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2022 | — | |
| Jan 1, 2000 | Jan 31, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2000 | — | |
| Jan 1, 2000 | Jan 31, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2000 | — | |
| Jan 1, 2000 | Jan 31, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2000 | — | |
| Feb 1, 1994 | Feb 28, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 1994 | — | |
| Feb 1, 1994 | Feb 28, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 1994 | — | |
| Feb 1, 1994 | Feb 28, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 1994 | — | |
| Feb 1, 1994 | Feb 28, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 1994 | — | |
| Feb 1, 1994 | Feb 28, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 1994 | — | |
| Feb 1, 1994 | Feb 28, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 1994 | — | |
| Feb 1, 1994 | Feb 28, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 1994 | — | |
| Feb 1, 1994 | Feb 28, 1994 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 1994 | — | |
| Jan 1, 1993 | Mar 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 1993 | — | |
| Jan 1, 1993 | Mar 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 1993 | — | |
| Jan 1, 1993 | Mar 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 1993 | — | |
| Jan 1, 1993 | Mar 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 1993 | — | |
| Jan 1, 1993 | Mar 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 1993 | — | |
| Jan 1, 1993 | Mar 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 1993 | — | |
| Jan 1, 1993 | Mar 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 1993 | — | |
| Jan 1, 1993 | Mar 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 1993 | — | |
| Jun 1, 1992 | Jun 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1992 | — | |
| Jun 1, 1992 | Jun 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1992 | — | |
| Jun 1, 1992 | Jun 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1992 | — | |
| Jun 1, 1992 | Jun 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1992 | — | |
| — | — | — | 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.