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Kansas Water Quality
412
Utilities in database
2.8M
Residents served
38%
On private wells
3
Key contaminants tracked
Drinking Water in Kansas
Kansas has 412 community water systems serving approximately 2.8 million residents. Primary water sources include groundwater. The most commonly reported contaminants include disinfection byproducts, nitrates, lead. 38% of Kansas residents rely on private wells. KDHE holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in Kansas
1–25 of 412Water District 1 of Johnson Co
KS2009110 · 490,000 served
City of Wichita
KS2017308 · 395,699 served
Kansas City Board of Public Utilities
KS2020906 · 152,960 served
City of Olathe
KS2009115 · 143,014 served
City of Topeka
KS2017701 · 125,963 served
City of Lawrence
KS2004503 · 95,256 served
City of Manhattan
KS2016112 · 54,763 served
City of Salina
KS2016914 · 46,481 served
City of Hutchinson
KS2015509 · 39,712 served
Leavenworth Water Department
KS2010317 · 38,757 served
Frusi Water Treatment Plant
KS2006114 · 35,784 served
City of Garden City
KS2005511 · 35,126 served
University of Kansas
KS2004513 · 35,000 served
City of Dodge City
KS2005710 · 27,104 served
City of Derby
KS2017328 · 25,413 served
City of Emporia
KS2011105 · 24,009 served
City of Gardner
KS2009106 · 23,942 served
City of Hays
KS2005111 · 21,040 served
City of Pittsburg
KS2003705 · 20,738 served
City of Liberal
KS2017504 · 19,640 served
City of Junction City
KS2006108 · 19,167 served
City of Newton
KS2007905 · 18,433 served
City of Great Bend
KS2000911 · 14,580 served
City of Mcpherson
KS2011309 · 13,944 served
Fort Leavenworth American Water Ent Llc
KS2010311 · 12,934 served
Key Contaminant Concerns in Kansas
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing.
Nitrates
Nitrate (NO₃⁻) is a nitrogen-containing compound that forms naturally through the decomposition of organic matter. At elevated concentrations — almost always from human activity — nitrate interferes with the blood's ability to carry oxygen. The United States produces over 23 million tons of nitrogen fertilizer annually, making agricultural runoff the dominant source of nitrate contamination.
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
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Data source: Utility data from EPA SDWIS. 412 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-22