State Hub
Tennessee Water Quality
403
Utilities in database
7.8M
Residents served
22%
On private wells
2
Key contaminants tracked
Drinking Water in Tennessee
Tennessee has 403 community water systems serving approximately 7.8 million residents. Primary water sources include surface water. The most commonly reported contaminants include disinfection byproducts, nitrates. 22% of Tennessee residents rely on private wells. TDEC holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in Tennessee
126–150 of 403Plateau Utility District
TN0000729 · 12,074 served
Woodlawn Utility District
TN0000758 · 12,069 served
Martin Water Dept
TN0000435 · 11,918 served
Oneida W&s Comm
TN0000532 · 11,600 served
Woodbury Water System
TN0000756 · 11,434 served
Rockwood Water, Sewer & Gas
TN0000590 · 11,412 served
Kingston Water System
TN0000360 · 11,392 served
Hillsville Utility District
TN0000430 · 11,325 served
Caryville-jacksboro Utilities Commission
TN0000322 · 11,079 served
Centerville Water System
TN0000103 · 11,011 served
Cumberland Utility District
TN0000531 · 10,957 served
Milan Water Dept
TN0000458 · 10,932 served
Sparta Water System
TN0000652 · 10,899 served
Pulaski Water System
TN0000562 · 10,767 served
Hartsville-trousdale W&s U.d.
TN0000291 · 10,562 served
Luttrell-blaine-corryton U.d.
TN0000415 · 10,529 served
Munford Water Dept
TN0000490 · 10,434 served
Bean Station Utility District
TN0000041 · 10,378 served
Algood Water System
TN0000009 · 10,042 served
Arthur-shawanee Utility District
TN0000022 · 10,037 served
O'connor Utility District
TN0000526 · 10,025 served
Camden Water Dept
TN0000090 · 10,013 served
Adamsville Water System
TN0000002 · 9,985 served
Dandridge Water Mgmt Facility
TN0000170 · 9,931 served
Humboldt Utilities-water Dept
TN0000314 · 9,908 served
Key Contaminant Concerns in Tennessee
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.
Tennessee Water FAQs
Quick Links
Data source: Utility data from EPA SDWIS. 403 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-19