PFAS Testing Results
Kansas
PFAS testing results for 103 water systems serving 2,346,251 residents.
5 systems exceed federal PFAS limits, affecting 77,369 residents.
Systems tested
103
33.0% had PFAS detections
Limits exceeded
5
4.9% of systems
Population affected
77K
served by systems over federal limits
Most common compound
11Cl-PF3OUdS
detected in 34 systems
Grade distribution
Every water system gets a letter grade based on how its worst detected PFAS compound compares to the federal Maximum Contaminant Level. Lower grades mean higher contamination.
Communities exceeding federal limits
The water systems in Kansas where at least one PFAS compound exceeds the EPA Maximum Contaminant Level, sorted worst first.
| System name | City | Grade | Worst compound | Times over limit | Population |
|---|---|---|---|---|---|
| FRUSI WATER TREATMENT PLANT | FORT RILEY | D | PFOA | 3.5x | 36K |
| GREAT BEND, CITY OF | GREAT BEND | D | PFHxS | 1.7x | 15K |
| ARKANSAS CITY, CITY OF | ARKANSAS CITY | D | PFOS | 1.1x | 12K |
| PARK CITY, CITY OF | PARK CITY | D | PFOS | 1.1x | 8.5K |
| PRATT, CITY OF | PRATT | D | PFOS | 1.0x | 6.6K |
Resources for taking action are available in our community toolkit.
What Kansas is doing about PFAS
As of April 2026, Kansas has not adopted state-level PFAS drinking water standards beyond the federal EPA limits finalized in April 2024. The Kansas Department of Health and Environment has tracked contamination near McConnell Air Force Base and has not published enforceable state MCLs.
Public water systems in Kansas are subject to the federal compliance timeline requiring initial monitoring by 2027 and treatment installation by 2029.
Based on Kansas Department of Health and Environment publications.
All 103 tested water systems in Kansas
Sorted from lowest grade to highest. Click any system name for the full report. Filter by city or name with the search box below.
Showing 50 of 103 systems
| Grade | System name | City | Worst compound | vs. EPA limit | Population |
|---|---|---|---|---|---|
D | FRUSI WATER TREATMENT PLANT | FORT RILEY | PFOA | 3.5× the federal limit | 36K |
D | GREAT BEND, CITY OF | GREAT BEND | PFHxS | 1.7× the federal limit | 15K |
D | ARKANSAS CITY, CITY OF | ARKANSAS CITY | PFOS | 1.1× the federal limit | 12K |
D | PARK CITY, CITY OF | PARK CITY | PFOS | 1.1× the federal limit | 8.5K |
D | PRATT, CITY OF | PRATT | PFOS | 1.0× the federal limit | 6.6K |
C | HAYS, CITY OF | HAYS | PFPeA | Below detection | 21K |
C | PAOLA, CITY OF | PAOLA | PFBA | Below detection | 5.8K |
B | LAWRENCE, CITY OF | LAWRENCE | PFHxS | Below federal limit | 95K |
B | SALINA, CITY OF | SALINA | PFHxS | Below federal limit | 46K |
B | DOUGLAS CO RWD 3 | BERRYTON | PFHxS | Below federal limit | 4.7K |
B | SHAWNEE CO RWD 8 | TECUMSEH | PFHxS | Below federal limit | 6.1K |
B | HUGOTON, CITY OF | HUGOTON | PFHxS | Below federal limit | 3.8K |
B | IOLA, CITY OF | IOLA | 6:2FTS | Below detection | 5.3K |
B | FORT SCOTT, CITY OF | FORT SCOTT | PFBA | Below detection | 7.5K |
B | UNIVERSITY OF KANSAS | LAWRENCE | PFBA | Below detection | 35K |
B | DODGE CITY, CITY OF | DODGE CITY | PFPeA | Below detection | 27K |
B | OTTAWA, CITY OF | OTTAWA | PFBA | Below detection | 13K |
B | VIRGIL, CITY OF | VIRGIL | PFBA | Below detection | 48 |
B | DESOTO, CITY OF | DESOTO | PFBS | Below detection | 4.6K |
B | JOHNSON CO RWD 7 | GARDNER | PFBA | Below detection | 6.5K |
B | GARDNER, CITY OF | GARDNER | PFPeA | Below detection | 24K |
B | WATER DISTRICT 1 OF JOHNSON CO | KANSAS CITY | PFBA | Below detection | 482K |
B | SPRING HILL, CITY OF | SPRING HILL | PFBA | Below detection | 5.7K |
B | MIAMI CO RWD 2 | PAOLA | PFBA | Below detection | 10K |
B | LOUISBURG, CITY OF | LOUISBURG | PFBA | Below detection | 5.0K |
B | COFFEYVILLE, CITY OF | COFFEYVILLE | PFBS | Below detection | 8.8K |
B | COUNCIL GROVE, CITY OF | COUNCIL GROVE | PFBA | Below detection | 2.1K |
B | WAMEGO, CITY OF | WAMEGO | PFBS | Below detection | 4.9K |
B | SEDGWICK CO RWD 2 | VALLEY CENTER | PFBA | Below detection | 1.5K |
B | GODDARD, CITY OF | GODDARD | PFBS | Below detection | 5.4K |
B | TOPEKA, CITY OF | TOPEKA | PFBA | Below detection | 126K |
B | SHAWNEE CO RWD 4C | TOPEKA | PFBA | Below detection | 12K |
B | MULVANE, CITY OF | MULVANE | PFBS | Below detection | 6.6K |
B | WELLINGTON, CITY OF | WELLINGTON | PFBA | Below detection | 7.7K |
A | GAS CITY, CITY OF | GAS | - | Below detection | 501 |
A | MORAN, CITY OF | MORAN | - | Below detection | 467 |
A | ATCHISON, CITY OF | ATCHISON | - | Below detection | 11K |
A | ATCHISON CO RWD 5C | LANCASTER | - | Below detection | 3.7K |
A | MEDICINE LODGE, CITY OF | MEDICINE LODGE | - | Below detection | 1.7K |
A | BOURBON CO RWD 2C | FORT SCOTT | - | Below detection | 7.0K |
A | AUGUSTA, CITY OF | AUGUSTA | - | Below detection | 9.3K |
A | EL DORADO, CITY OF | EL DORADO | - | Below detection | 13K |
A | ROSE HILL, CITY OF | ROSE HILL | - | Below detection | 4.3K |
A | BUTLER CO RWD 5 | BENTON | - | Below detection | 6.5K |
A | BAXTER SPRINGS, CITY OF | BAXTER SPRINGS | - | Below detection | 3.9K |
A | CLAY CENTER, CITY OF | CLAY CENTER | - | Below detection | 4.1K |
A | CONCORDIA, CITY OF | CONCORDIA | - | Below detection | 5.0K |
A | WAVERLY, CITY OF | WAVERLY | - | Below detection | 574 |
A | WINFIELD, CITY OF | WINFIELD | - | Below detection | 12K |
A | CRAWFORD CO RWD 5 | PITTSBURG | - | Below detection | 2.2K |
Check your water system
Enter your zip code to see the PFAS results for the water system that serves your home.
Where this data comes from
- EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5)
- Testing period: 2023 to 2026
- Federal limits: EPA Maximum Contaminant Levels finalized April 2024
- Read the full methodology