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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
201–225 of 345Sharpsburg Water District
KY0060392 · 4,332 served
Western Fleming Water District
KY0910675 · 4,262 served
Parksville Water District
KY0110345 · 4,261 served
So Woodford Co Water District
KY1200411 · 4,218 served
Walton Waterworks Department
KY0080442 · 4,173 served
Trimble Co Water District #1
KY1120431 · 4,146 served
Nicholas Co Water District
KY0910314 · 4,089 served
Graves Co Water Dist - Hickory
KY0420194 · 4,069 served
Grand Rivers Water System
KY0700162 · 3,980 served
Beaver Dam Municipal Water & Sewer
KY0920025 · 3,901 served
Falmouth Water Department
KY0960126 · 3,861 served
Milton Water & Sewer Department
KY1120289 · 3,861 served
Whitesburg Water Works
KY0670466 · 3,861 served
Eddyville Water Department
KY0720113 · 3,843 served
North Hopkins Water District
KY0540138 · 3,725 served
Pendleton Co Water District #1/south
KY0960499 · 3,713 served
Whitesville Water Works
KY0300467 · 3,672 served
Sandy Hook Water District
KY0320383 · 3,528 served
Sturgis Water Works
KY1130422 · 3,490 served
Peaks Mill Water District
KY0370346 · 3,268 served
Caveland Environmental Authority, Inc.
KY0050344 · 3,264 served
Lewisport Municipal Water Works
KY0460248 · 3,249 served
Hawesville Water Works
KY0460182 · 3,225 served
Fleming-neon Water Company
KY0670279 · 3,212 served
Raceland Water System
KY0450365 · 3,201 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