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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
376–400 of 412Jefferson Co Rwd 2
KS2008719 · 642 served
Mcpherson Co Rwd 4
KS2011305 · 636 served
City of Ozawkie
KS2008718 · 636 served
Reno Co Rwd 4
KS2015517 · 635 served
City of Bennington
KS2014303 · 635 served
Neosho Co Rwd 7
KS2013303 · 625 served
Cowley Co Rwd 2
KS2003512 · 600 served
City of Nortonville
KS2008703 · 599 served
City of Hoyt
KS2008501 · 599 served
City of St Paul
KS2013316 · 597 served
City of Marquette
KS2011302 · 596 served
City of Lecompton
KS2004501 · 592 served
City of Cherokee
KS2003714 · 591 served
Wilson Co Rwd 7
KS2020516 · 585 served
City of Howard
KS2004901 · 583 served
City of White City
KS2012703 · 581 served
City of Waverly
KS2003108 · 574 served
City of Bentley
KS2017341 · 569 served
City of Weir
KS2002114 · 566 served
Jefferson Co Rwd 15
KS2008721 · 563 served
City of Goessel
KS2011504 · 558 served
City of Claflin
KS2000905 · 553 served
Republic Co Rwd 1
KS2015702 · 548 served
Labette Co Rwd 7
KS2009912 · 540 served
City of Fowler
KS2011901 · 532 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.
Kansas Water FAQs
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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