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Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
Water quality data for 2 cities serving 421,112 residents
Sedgwick County in Kansas has an average water quality score of 99/100 (Grade A) based on analysis of 2 municipal water systems. The county's water systems serve approximately 421,112 residents.
Overall, Sedgwick County demonstrates good water quality standards. 1 of 2 cities exceed the county average, with Wichita leading with a score of 100/100.
2 cities ranked by water quality score
Real EPA readings across county water systems (lead: latest 90th percentile; PFAS: UCMR5 2023–2026; others: 2012–2019 averages)
| Contaminant | Avg Level | Max Level | EPA Limit | % of Limit | Cities |
|---|---|---|---|---|---|
| TTHM (2012–2019 avg) | 27.122 ug/L | 28.174 ug/L | 80 ug/L | 33.9% | 2 |
| HAA5 (2012–2019 avg) | 11.054 ug/L | 11.755 ug/L | 60 ug/L | 18.4% | 2 |
| Arsenic (2012–2019 avg) | 1.375 ug/L | 1.375 ug/L | 10 ug/L | 13.8% | 1 |
| Lead (90th percentile) | 1.36 ppb | 1.42 ppb | 15 ppb | 9.1% | 2 |
| Nitrate (2012–2019 avg) | 0.788 mg/L | 0.788 mg/L | 10 mg/L | 7.9% | 1 |
| Fluoride (2012–2019 avg) | 0.216 mg/L | 0.216 mg/L | 4 mg/L | 5.4% | 1 |
| PFAS (PFOA/PFOS max, UCMR5) | 0 ppt | 0 ppt | 4 ppt | 0% | 2 |
| Radium (2012–2019 avg) | 0 pCi/L | 0 pCi/L | 5 pCi/L | 0% | 1 |
Recent violations across county water systems
Monitoring & reporting — Monitoring and Reporting (DBP) - Total Haloacetic Acids (HAA5)
5/31/2022
Monitoring & reporting — Monitoring and Reporting (DBP) - Total Haloacetic Acids (HAA5)
5/31/2021
Monitoring & reporting — Monitoring and Reporting (DBP) - Total Haloacetic Acids (HAA5)
2/28/2021
Water quality in Sedgwick County, Kansas reflects the region's unique combination of water sources, treatment infrastructure, and environmental factors. Our comprehensive analysis examines 2 municipal water systems serving a combined population of over 421,112 residents.
The county shows strong water quality performance, with scores ranging from 98/100 in Derby to 100/100 in Wichita. This 2-point spread indicates relatively consistent water quality standards across municipal systems.
The most prevalent contaminants detected across Sedgwick County water systems include TTHM (2012–2019 avg), HAA5 (2012–2019 avg), Arsenic (2012–2019 avg). Every county-wide average sits below 50% of its EPA Maximum Contaminant Level (MCL).
Sedgwick County's water quality is generally good. Residents can feel confident in their tap water quality, though those with specific health concerns or sensitivity to certain contaminants may still benefit from filtration. Regular review of your city's annual Consumer Confidence Report is recommended.
Sedgwick County has an average water quality score of 99/100 (Grade A) based on analysis of 2 municipal water systems serving 421,112 residents.
Wichita has the highest water quality score in Sedgwick County at 100/100. View the detailed report for Wichita.
Most cities in Sedgwick County have water that meets EPA standards. However, a water filter can provide additional protection and improve taste. The need depends on your specific city and any personal health considerations.
Click on any city in the rankings table above to view its detailed water quality report, including contaminant levels, EPA compliance history, and filter recommendations.