THOMPSON WATER WORKS
Iowa — Community Water System — PWSID: IA9585017
System Information
| PWSID | IA9585017 |
| System Name | THOMPSON WATER WORKS |
| 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 | THOMPSON |
| ZIP Code | 50478 |
| Address | ATTN WATER SUPT |
| Organization | THOMPSON WATER WORKS |
| Phone | 641-584-2785 |
Population & Service
| Population Served | 499 |
| Service Connections | 312 |
Drinking Water Violations (127)
This water system has 127 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 2004 | Sep 30, 2004 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | — | |
| Sep 1, 2004 | Sep 30, 2004 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | — | |
| Sep 1, 2004 | Sep 30, 2004 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | — | |
| Sep 1, 2004 | Sep 30, 2004 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | — | |
| Sep 1, 2004 | Sep 30, 2004 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | — | |
| Apr 1, 2001 | Jun 30, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Apr 1, 2001 | Jun 30, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Apr 1, 2001 | Jun 30, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Apr 1, 2001 | Jun 30, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Apr 1, 2001 | Jun 30, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Apr 1, 2001 | Jun 30, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Apr 1, 2001 | Jun 30, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Apr 1, 2001 | Jun 30, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Jul 1, 2000 | Jun 30, 2001 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Jul 1, 2000 | Jun 30, 2001 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Jul 1, 2000 | Jun 30, 2001 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Jul 1, 2000 | Jun 30, 2001 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Jul 1, 2000 | Jun 30, 2001 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Jul 1, 2000 | Jun 30, 2001 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Jul 1, 2000 | Jun 30, 2001 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Jul 1, 2000 | Jun 30, 2001 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2001 | — | |
| Apr 1, 1989 | — | MR | No | No | — | TT | — | Resolved | Jan 16, 1990 | — | |
| Apr 1, 1989 | — | MR | No | No | — | TT | — | Resolved | Jan 16, 1990 | — | |
| Apr 1, 1989 | — | MR | No | No | — | TT | — | Resolved | Jan 16, 1990 | — | |
| Apr 1, 1989 | — | MR | No | No | — | TT | — | Resolved | Jan 16, 1990 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 2 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 2 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 2 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 2 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 2 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Jun 30, 1989 | — | |
| Jul 1, 1986 | Jun 30, 1989 | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 1989 | — |
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.