Water Quality in SIOUX CITY, IA (51108)
EPA violation data for public water systems serving ZIP code 51108.
36
Total Violations
0
Health-Based
36
Monitoring / Reporting
27
Resolved
What does this mean?
27 of 36 violations have been resolved. None of these are health-based violations — no contaminant levels exceeded federal safety limits. The remaining 36 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.
Violations Detail (36 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Public Notice | Monitoring | N/A | N/A | Jan 21, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Jan 21, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Jan 21, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Nov 23, 2024 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Nov 23, 2024 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Nov 23, 2024 | Active | N/A |
| E. COLI | Monitoring | 0 | N/A | Nov 11, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Nov 11, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Nov 11, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Nov 11, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
Violation Timeline
2025(3)
Public Notice
75
Public Notice
75
Public Notice
75
2024(21)
Public Notice
75
Public Notice
75
Public Notice
75
E. COLI
34
E. COLI
34
E. COLI
34
E. COLI
34
E. COLI
34
E. COLI
34
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Public Notice
75
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
How Does This Compare?
SIOUX CITY (51108) has 36 recorded violations, none of which are health-based. 9 remain unresolved. Consider testing your tap water independently for added peace of mind.
Recommended Water Filters
Based on the contaminants detected in your area, these filter types may help improve your water quality.
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.