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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
276–300 of 345Hindman Mun Water Works
KY0600198 · 1,883 served
White Plains Water System
KY0540465 · 1,871 served
Graves Co Water Dist - South Graves
KY0420405 · 1,844 served
Wurtland Water Department
KY0450479 · 1,815 served
Symsonia Water District
KY0420423 · 1,810 served
Kevil Water Department
KY0040223 · 1,782 served
Sebree Water Department
KY1170388 · 1,743 served
Kentucky American Water - Eastern Rockca
KY1020288 · 1,732 served
Elkhorn City Water Dept
KY0980120 · 1,723 served
Earlington Water & Sewer
KY0540108 · 1,708 served
Augusta Regional Wtp
KY0120013 · 1,690 served
Worthington Municipal Water Works
KY0450478 · 1,673 served
North Logan Water District
KY0710318 · 1,649 served
Water Service Corp of Kentucky
KY0530077 · 1,633 served
Irvington Water System
KY0140206 · 1,627 served
Brodhead Water Works
KY1020889 · 1,613 served
Hardin Water Department
KY0790173 · 1,606 served
Elkhorn Water District
KY0370137 · 1,590 served
Cloverport Water & Sewer System
KY0140079 · 1,560 served
Island Water Department
KY0750207 · 1,512 served
Uniontown Water & Sewer Dept
KY1130434 · 1,496 served
Crab Orchard Water District
KY0690089 · 1,488 served
Centertown Water System
KY0920070 · 1,485 served
Black Mtn Utility/wallins
KY0480572 · 1,485 served
Fountain Run Water District #1
KY0860141 · 1,485 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