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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
201–225 of 412City of Belle Plaine
KS2019115 · 1,468 served
City of Colwich
KS2017344 · 1,463 served
Crawford Co Rwd 2
KS2003717 · 1,460 served
Sedgwick Co Rwd 2
KS2017315 · 1,460 served
Doniphan Co Rwd 5
KS2004307 · 1,457 served
Pottawatomie Co Rwd 3
KS2014904 · 1,455 served
Butler Co Rwd 7
KS2001531 · 1,455 served
City of Towanda
KS2001524 · 1,445 served
Osage Co Rwd 7
KS2013906 · 1,430 served
City of Leoti
KS2020301 · 1,430 served
Sumner Co Rwd 5
KS2019101 · 1,429 served
City of Kinsley
KS2004703 · 1,417 served
City of Hill City
KS2006503 · 1,410 served
City of Arma
KS2003713 · 1,406 served
Douglas Co Rwd 1
KS2004506 · 1,400 served
Wabaunsee Co Rwd 2
KS2019711 · 1,400 served
Marion Co Rwd 4
KS2011511 · 1,398 served
City of Stockton
KS2016304 · 1,380 served
City of Chapman
KS2004108 · 1,377 served
City of Sublette
KS2008103 · 1,376 served
City of Carbondale
KS2013914 · 1,344 served
City of Johnson City
KS2018702 · 1,343 served
City of Silver Lake
KS2017714 · 1,337 served
City of Yates Center
KS2020702 · 1,335 served
City of Osborne
KS2014105 · 1,324 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