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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
251–275 of 345Reid Village Water District
KY0870367 · 2,545 served
Levee Rd Water Association Inc
KY0870246 · 2,471 served
Sacramento Water Works
KY0750907 · 2,435 served
Guthrie Water Works
KY1100171 · 2,421 served
Tompkinsville Water Works
KY0860426 · 2,404 served
Dry Ridge Water Works Commission
KY0410107 · 2,400 served
Greensburg Water Works
KY0440168 · 2,396 served
West Liberty Water Company
KY0880452 · 2,367 served
Owingsville Water Works
KY0060338 · 2,307 served
Liberty Water Works
KY0230987 · 2,302 served
Burnside Water Company
KY1000050 · 2,284 served
Dexter Almo Heights Water District
KY0180102 · 2,275 served
Doe Valley Utilities Inc
KY0820641 · 2,260 served
Midway Municipal Water Works
KY1200283 · 2,174 served
Hanson Water System
KY0540656 · 2,157 served
Clay City Water System
KY0990074 · 2,153 served
Livermore Water Works
KY0750252 · 2,138 served
Munfordville Water Dept
KY0500305 · 2,109 served
New Castle Water Works
KY0520520 · 2,100 served
Montgomery Co Water District #1
KY0870290 · 2,082 served
Carlisle Water Department
KY0910065 · 2,059 served
Warsaw Water Works
KY0390444 · 1,988 served
Black Mtn Utility/dayhoit
KY0480277 · 1,954 served
Auburn Mun Water Works
KY0710012 · 1,931 served
Black Mtn Utility/rosspoint
KY0480650 · 1,889 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