DEFIANCE WATER DEPARTMENT
PWS ID: IA8315018 · DEFIANCE, Iowa 51527
Population Served
250
Total Violations
205
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 145
- County
- Shelby
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 176
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 18 | 2013 |
| Di(2-ethylhexyl) adipate | MR | 8 | 2008 |
| Revised Total Coliform Rule | MON | 8 | 2024 |
| Consumer Confidence Rule | Other | 8 | 2022 |
| Atrazine | MR | 4 | 2001 |
| 2,4-D | MR | 4 | 2001 |
| 2,4,5-TP | MR | 4 | 2001 |
| Pentachlorophenol | MR | 4 | 2001 |
| Dalapon | MR | 4 | 2001 |
| Simazine | MR | 4 | 2001 |
| Di(2-ethylhexyl) phthalate | MR | 4 | 2001 |
| Dinoseb | MR | 4 | 2001 |
| cis-1,2-Dichloroethylene | MR | 4 | 2001 |
| DICHLOROMETHANE | MR | 4 | 2001 |
| p-Dichlorobenzene | MR | 4 | 2001 |
| Vinyl chloride | MR | 4 | 2001 |
| trans-1,2-Dichloroethylene | MR | 4 | 2001 |
| 1,2-Dichloroethane | MR | 4 | 2001 |
| 1,1,1-Trichloroethane | MR | 4 | 2001 |
| Carbon tetrachloride | MR | 4 | 2001 |
| 1,2-Dichloropropane | MR | 4 | 2001 |
| Trichloroethylene | MR | 4 | 2001 |
| Tetrachloroethylene | MR | 4 | 2001 |
| CHLOROBENZENE | MR | 4 | 2001 |
| Benzene | MR | 4 | 2001 |
| Toluene | MR | 4 | 2001 |
| Ethylbenzene | MR | 4 | 2001 |
| TTHM | MR | 4 | 2013 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2013 |
| 1,2,4-Trichlorobenzene | MR | 4 | 2001 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.