City of South Sioux City
PWSID: NE3104309
This system has no violations on record.
System Details
| Population Served | 14,043 |
| Service Connections | 4,482 |
| Water Source | GUP |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | South Sioux City |
| EPA ZIP on File | 68776 |
Areas Served
- South Sioux City, Dakota County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|---|---|---|
| Lead (90th percentile) | 0.0055 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0039 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0037 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0011 mg/L | 0.015 mg/L | Below Action Level |
Violation History (0 total)
No violations on record for this water system.
Understanding This Water System's Record
City of South Sioux City is a community water system water system that draws from gup sources and serves a population of 14,043 in South Sioux City, Nebraska. This page shows its complete compliance history as reported to the EPA's Safe Drinking Water Information System (SDWIS), the federal database that tracks every public water system in the United States.
What Do These Violations Mean?
Health-based violations mean the system exceeded an EPA maximum contaminant level (MCL) or failed to provide required treatment. These indicate potential health risks from contaminants like lead, arsenic, bacteria, nitrates, or disinfection byproducts. Non-health-based violations involve monitoring, reporting, or procedural requirements — the system missed a testing deadline or failed to notify customers, but contaminant levels were not necessarily unsafe.
What Should You Do?
Your water utility is required to publish an annual Consumer Confidence Report (CCR) that details test results and any violations. If your system has active health-based violations, consider a certified water filter rated for the specific contaminants involved. The contaminant guides on this site explain health risks and filter options for common pollutants. For the most current results, contact your water utility directly — EPA data can lag weeks or months behind real-time testing.