LITTLE SIOUX WATER DEPARTMENT
PWS ID: IA4333089 · LITTLE SIOUX, Iowa 51545-3036
Population Served
166
Total Violations
85
Health-Based Violations
10
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 78
- County
- Harrison
- School/Daycare
- No
- MCL Violations
- 10
- Monitoring Violations
- 52
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 14 | 1995 |
| TTHM | MR | 10 | 2024 |
| Nitrate | MR | 8 | 1999 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2024 |
| Xylenes, Total | MR | 6 | 2006 |
| Coliform (TCR) | MCL | 6 | 1993 |
| Arsenic | MCL | 4 | 2015 |
| Di(2-ethylhexyl) phthalate | MR | 4 | 2006 |
| Public Notice | Other | 3 | 2023 |
| Lead and Copper Rule | MR | 2 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.