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Kentucky Water Quality
345
Utilities in database
5.0M
Residents served
32%
On private wells
2
Key contaminants tracked
Drinking Water in Kentucky
Kentucky has 345 community water systems serving approximately 5.0 million residents. Primary water sources include surface water. The most commonly reported contaminants include disinfection byproducts, nitrates. 32% of Kentucky residents rely on private wells. DWR holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in Kentucky
301–325 of 345Pendleton Co Water District #1 / North
KY0960348 · 1,485 served
Mortons Gap Water Department
KY0540269 · 1,485 served
Beech Grove Water System
KY0750529 · 1,461 served
Woodson Bend Property Owners Assoc
KY1000973 · 1,455 served
Green Hills Water District
KY0480341 · 1,443 served
Brownsville Municipal Water System
KY0310706 · 1,441 served
Burgin Water Department
KY0840048 · 1,426 served
Muldraugh Water Department
KY0820481 · 1,411 served
Black Mtn Utility/kenvir
KY0480603 · 1,396 served
Kentucky American Water- Millersburg
KY0090287 · 1,366 served
New Haven Municipal Water Works
KY0900312 · 1,357 served
Mckee Water Works
KY0550784 · 1,331 served
Graves Co Water Dist - Fancy Farm
KY0420027 · 1,301 served
Lacenter Municipal Water Co
KY0040228 · 1,291 served
Clay Water Works
KY1170073 · 1,287 served
Wickliffe Municipal Water System
KY0040469 · 1,264 served
Dixon Water Department
KY1170104 · 1,253 served
Salem Municipal Water System
KY0700380 · 1,241 served
Bardwell City Utilities
KY0200018 · 1,227 served
Kentucky State Penitentiary
KY0720552 · 1,200 served
Martin Water Department
KY0360272 · 1,167 served
South 641 Water District
KY0180185 · 1,160 served
Kuttawa Water Department
KY0720227 · 1,143 served
Lynch Water Works
KY0480262 · 1,078 served
Fredonia Water Department
KY0170146 · 1,040 served
Key Contaminant Concerns in Kentucky
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.
Kentucky Water FAQs
Quick Links
Data source: Utility data from EPA SDWIS. 345 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-22