Sioux City, IA Water Quality
Sioux City, IA has 1 public water system serving 85,791 people. The average Water Safety Score is 40/100 (F). 10 health violations are on record.
Water Systems in Sioux City
Contaminants Detected in Sioux City Water
| Contaminant | Systems Detected | Exceeding MCL |
|---|---|---|
| Haloacetic Acids (HAA5) | 1 | 0 |
| Total Trihalomethanes | 1 | 0 |
Frequently Asked Questions
Sioux City has 1 public water system serving 85,791 people. The average Water Safety Score is 40/100. There are 10 health violations on record. Check individual systems below for details.
Sioux City water systems have detected 2 contaminants, including Haloacetic Acids (HAA5), Total Trihalomethanes. No contaminant exceedances above EPA limits are currently recorded.
The Water Safety Score (0-100, grades A through F) weighs health-based violations (40%), contaminant exceedances (30%), enforcement history (20%), and monitoring violations (10%). Scores are based on EPA SDWIS data from the last 10 years.
Request your utility's Consumer Confidence Report (CCR), consider an independent water test from a certified lab, and look into NSF-certified water filters for specific contaminants of concern. For lead, run cold water for 30 seconds before drinking.
Water quality data sourced from EPA's Safe Drinking Water Information System. City data aggregates all public water systems serving the municipality.