Kansas tap water quality
856 community water systems serving 2.9 million people.
Data: U.S. EPA · How we read the data · How we check it
PFAS: EPA's 2023–2025 testing. Lead: results from the last five years. 2 more systems have no recent lead results in EPA's database.
Water systems with PFAS above the federal limit
Based on EPA's UCMR 5 results (2023–2025) compared to the April 2024 limits, the way EPA compares them. Systems have until 2029 to comply. Largest first.
- Frusi Water Treatment Plant35,784 people · Groundwater · KansasPFOA above limitAlso: PFOS above limit · PFHxS above limit · PFAS Hazard Index above limit · 3 health-based violations since 2016
- City of Dodge City27,104 people · Groundwater · KansasPFOS above limitAlso: Nitrate violation · Lithium above screening level
- City of Great Bend14,580 people · Groundwater · KansasPFOS above limitAlso: PFHxS above limit · PFAS Hazard Index above limit · PFOA detected
Kansas PFAS report: chart, rankings and data to download →
Largest water systems in Kansas
- Water District 1 of Johnson County490,000 people · Surface water · KansasLithium above screening level
- City of Wichita395,699 people · Surface water · KansasLithium above screening level
- Kansas City Board of Public Utilities152,960 people · Groundwater under influence of surface water · KansasLithium above screening level
- City of Olathe143,014 people · Surface water · KansasLead near 2027 levelAlso: Lithium above screening level
- City of Topeka125,963 people · Surface water · KansasHaloacetic acids (HAA5) violationAlso: Lithium above screening level
- City of Lawrence95,256 people · Surface water · KansasPFHxS detectedAlso: Lithium above screening level
- City of Manhattan54,763 people · Groundwater · KansasLithium above screening level
- City of Salina46,481 people · Surface water · KansasPFHxS detectedAlso: Lithium above screening level
- City of Hutchinson39,712 people · Groundwater · KansasNo PFAS above limitsAlso: 1 health-based violation since 2016
- Leavenworth Water Department38,757 people · Surface water · KansasLithium above screening level
- Frusi Water Treatment Plant35,784 people · Groundwater · KansasPFOA above limitAlso: PFOS above limit · PFHxS above limit · PFAS Hazard Index above limit · 3 health-based violations since 2016
- City of Garden City35,126 people · Groundwater · KansasLithium above screening level
- University of Kansas Water System35,000 people · Purchased surface water · KansasLithium above screening level
- City of Dodge City27,104 people · Groundwater · KansasPFOS above limitAlso: Nitrate violation · Lithium above screening level
- City of Derby25,413 people · Purchased surface water · KansasLithium above screening level
Kansas cities and towns
- Derby
- Dodge City
- Garden City
- Gardner
- Hutchinson
- Kansas City
- Lawrence
- Leavenworth
- Manhattan
- Olathe
- Salina
- Topeka
- Wichita
Most health-based violations since 2016
- Kickapoo Tribal Waterworks520 people · Surface water · KansasTotal trihalomethanes (TTHM) violationsAlso: Haloacetic acids (HAA5) violations · Coliform bacteria violation
- City of Severy200 people · Surface water · KansasTotal trihalomethanes (TTHM) violationsAlso: Haloacetic acids (HAA5) violations · Coliform bacteria violation
- City of Elk City292 people · Surface water · KansasTotal trihalomethanes (TTHM) violationsAlso: Haloacetic acids (HAA5) violations
- City of Ford204 people · Groundwater · KansasNitrate violationsAlso: Coliform bacteria violation
- City of Sylvia210 people · Groundwater · KansasNitrate violationsAlso: Coliform bacteria violation
- City of Beloit3,407 people · Surface water · KansasTotal trihalomethanes (TTHM) violations
- Mitchell County Rural Water District 2873 people · Surface water · KansasTotal trihalomethanes (TTHM) violationsAlso: Coliform bacteria violation
- Mitchell County Rural Water District 32,048 people · Purchased surface water · KansasTotal trihalomethanes (TTHM) violations
- Mitchell County Rural Water District 1345 people · Purchased surface water · KansasTotal trihalomethanes (TTHM) violations
- City of Randall80 people · Purchased surface water · KansasTotal trihalomethanes (TTHM) violations
- City of Yates Center1,335 people · Surface water · KansasHaloacetic acids (HAA5) violationsAlso: Total trihalomethanes (TTHM) violations
- City of Woodbine160 people · Purchased surface water · KansasTotal trihalomethanes (TTHM) violations
- City of Copeland251 people · Groundwater · KansasNitrate violations
- City of Jewell365 people · Purchased surface water · KansasTotal trihalomethanes (TTHM) violationsAlso: Coliform bacteria violation
- Reno County Rural Water District 101200 people · Groundwater · KansasNitrate violations
All Kansas utilities on this site
Every Kansas system serving 50,000+ people or with PFAS above a federal limit, A to Z. Download all 856 systems as CSV.
- City of Dodge City
- City of Great Bend
- City of Lawrence
- City of Manhattan
- City of Olathe
- City of Topeka
- City of Wichita
- Frusi Water Treatment Plant
- Kansas City Board of Public Utilities
- Water District 1 of Johnson County
Questions
Does Kansas tap water have PFAS?
EPA tested 102 community water systems in Kansas for 29 PFAS between 2023 and 2025. 11 had at least one regulated PFAS detected, and 3 had an entry-point average above a 2024 federal limit. Those 3 systems serve about 77,468 people (3% of people on community water in Kansas). Systems have until 2029 to meet the limits.
How many Kansas water systems have violations?
291 systems in Kansas had at least one health-based violation since 2016 (1,815 violations in total). 717 violations are currently listed as unaddressed.
Which Kansas water systems are over the lead action level?
3 systems had a lead 90th percentile above the 15 ppb action level in their most recent results from the last five years. Another 2 systems have no lead results in EPA's database from the last five years. Lead depends on each home's pipes, so a test of your own tap is the only way to know your level.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.