Kansas
Water quality data from the EPA Safe Drinking Water Information System
Water Systems
1,814
Active public water systems
Population Served
2.90M
Residents with piped water
Lead Violations
23
Systems exceeding 15 ppb
Copper Violations
184
Lead & Copper Rule
Average Lead Level
EPA Action Level: 15 ppb
MCLG (health goal): 0 ppb
Average across 1028 systems with reported lead data.
Violations Detected
207 water systems in Kansas have reported violations under the Lead and Copper Rule. These utilities are required to notify customers and take corrective action.
Schools & Daycares
1 school or daycare water system identified in this state.
Children are especially vulnerable to lead exposure. Schools are required to test for lead and remediate violations.
Water Systems: Highest Lead Levels
| System Name | City | Population | Lead Level | Status | Sample Date |
|---|---|---|---|---|---|
| OLATHE | 143,014 | 11.00 ppb | OK | 2023-12-31 | |
| KANSAS CITY | 152,960 | 7.50 ppb | OK | 2023-12-31 | |
| KANSAS CITY | 482,000 | 6.48 ppb | OK | 2023-12-31 | |
UNIVERSITY OF KANSASSchool/Daycare | LAWRENCE | 35,000 | 5.30 ppb | OK | 2023-12-31 |
| EL DORADO | 12,810 | 4.60 ppb | OK | 2024-12-31 | |
| EMPORIA | 24,009 | 4.50 ppb | OK | 2022-12-31 | |
| GREAT BEND | 14,580 | 3.50 ppb | OK | 2024-12-31 | |
| WINFIELD | 11,726 | 3.20 ppb | OK | 2024-12-31 | |
| GARDNER | 23,942 | 3.10 ppb | OK | 2023-12-31 | |
| LAWRENCE | 95,256 | 3.00 ppb | OK | 2023-12-31 | |
| HAYSVILLE | 11,315 | 2.70 ppb | OK | 2025-12-31 | |
| FORT LEAVENWORTH | 12,934 | 2.60 ppb | OK | 2023-12-31 | |
| TOPEKA | 125,963 | 2.40 ppb | OK | 2023-12-31 | |
| OTTAWA | 12,604 | 2.30 ppb | OK | 2023-12-31 | |
| MCPHERSON | 13,944 | 2.20 ppb | OK | 2023-12-31 |
Showing top 15 of 1003 systems with lead data. Action level: 15 ppb.
Systems With Active Violations
These water systems have exceeded EPA limits and must take corrective action.
WICHITA · Pop. 395,699
Lead: 1.42 ppb (2024-12-31)
HUTCHINSON · Pop. 39,712
Lead: 0.00 ppb (2024-12-31)
DERBY · Pop. 25,413
Lead: 1.30 ppb (2024-12-31)
NEWTON · Pop. 18,433
Lead: 1.20 ppb (2024-12-31)
MCPHERSON · Pop. 13,944
Lead: 2.20 ppb (2023-12-31)
HAYSVILLE · Pop. 11,315
Lead: 2.70 ppb (2025-12-31)
Water Source Types
Air Quality
GoodAvg AQI
45.2
PM2.5
6.1 µg/m³
Unhealthy Days
5
Primary Pollutant
Dust, Ozone
Source: EPA AirNow & American Lung Association 2024 State of the Air. AQI scale: 0–50 Good · 51–100 Moderate · 101–150 Sensitive Groups · 151+ Unhealthy.
PFAS Contamination
Moderate DetectionPFAS (per- and polyfluoroalkyl substances), known as “forever chemicals,” are a group of synthetic chemicals that persist indefinitely in the environment and human body. The EPA set a maximum contaminant level (MCL) of 4 parts per trillion (ppt) for PFOA and PFOS in April 2024. View national PFAS tracker →
Systems Tested
162
PFAS Detected
48
Detection Rate
29.6%
Exceeding MCL (4 ppt)
7(4.3%)
Highest recorded level: 16 ppt (EPA MCL: 4 ppt). Military installations (Fort Riley, McConnell AFB) are primary sources