Population Served
85.8K
Service Connections
29.4K
Total Violations
133
Health-Based Violations
54
Lead & Copper Data
Lead Level
Caution2.00 ppb
Action Level: 15 ppb (EPA) · Sampled: 2025-12-31
015 ppb action level
Copper Level
1900 ppb
Action Level: 1,300 ppb (EPA) · Sampled: 1992-12-31
Copper action level exceeded
System Details
- Water Source
- Groundwater Under Influence of SW
- System Type
- Community Water System
- City
- SIOUX CITY
- ZIP Code
- 51103
- Counties Served
- Woodbury
- Cities Served
- SIOUX CITY
- Open Violations
- 0
- State
- Iowa
Violation Summary
133
Total Violations
54
Health-Based
0
Open Now
Most recent violation: 2024-05-01
Explore Iowa Water Quality
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Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: IA9778054.SafeWater Home