DELAWARE MUNICIPAL WATER SUPPLY
Iowa — Community Water System — PWSID: IA2813019
System Information
| PWSID | IA2813019 |
| System Name | DELAWARE MUNICIPAL 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 | OELWEIN |
| ZIP Code | 50662 |
| Address | ATTN DEAN HENDRICKS |
| Organization | DELAWARE MUNICIPAL WATER SUPPLY |
| Phone | 563-608-9699 |
Population & Service
| Population Served | 142 |
| Service Connections | 42 |
Drinking Water Violations (74)
This water system has 74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb 1, 2018 | Feb 28, 2018 | MON | No | Yes | — | — | — | Resolved | Feb 28, 2018 | — | |
| Feb 1, 2018 | Feb 28, 2018 | MON | No | Yes | — | — | — | Resolved | Feb 28, 2018 | — | |
| Feb 1, 2018 | Feb 28, 2018 | MON | No | Yes | — | — | — | Resolved | Feb 28, 2018 | — | |
| Feb 1, 2018 | Feb 28, 2018 | MON | No | Yes | — | — | — | Resolved | Feb 28, 2018 | — | |
| Apr 1, 2009 | Mar 31, 2018 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Mar 31, 2018 | — | |
| Apr 1, 2009 | Mar 31, 2018 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Mar 31, 2018 | — | |
| Apr 1, 2009 | Mar 31, 2018 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Mar 31, 2018 | — | |
| Apr 1, 2009 | Mar 31, 2018 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Mar 31, 2018 | — | |
| Apr 1, 2008 | Jun 30, 2008 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Apr 1, 2008 | Jun 30, 2008 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Apr 1, 2008 | Jun 30, 2008 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Apr 1, 2008 | Jun 30, 2008 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 2 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 2 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 2 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 2 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Jul 1, 1999 | Jun 30, 2008 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2008 | — | |
| Oct 1, 1995 | Oct 31, 1995 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 1995 | — | |
| Oct 1, 1995 | Oct 31, 1995 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 1995 | — |
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.