Tennessee Tap Water Quality: Is It Safe to Drink?
2026 EPA water quality data for 446 community water systems serving a combined 7,854,510 people in Tennessee. Find your water system to see violations, PFAS results, lead testing, and a safety grade — free.
Tennessee draws drinking water primarily from surface rivers and reservoirs across the Cumberland and Tennessee River valleys. Disinfection byproducts are the most common violation type, especially in small systems treating warm surface water. PFAS contamination has been identified near military installations and industrial sites.
Find Your Water System in Tennessee
Enter your ZIP code to see EPA violations, lead test results, PFAS data, and a safety grade for your water.
Showing the 250 largest of 446 community water systems in Tennessee, by population served. Use the ZIP search above or the city links to find a smaller system.
Tennessee Drinking Water: Frequently Asked Questions
Is Tennessee tap water safe to drink?
Tennessee has 446 community water systems regulated by the EPA serving a combined 7,854,510 people. Water quality varies by system — search above to find your specific utility and see its violation history, lead test results, and safety grade.
How many water systems are in Tennessee?
There are 446 EPA-regulated community water systems in Tennessee serving a combined 7,854,510 people. Each system is required to test for over 90 contaminants and publicly report any violations.
Does Tennessee have PFAS in its drinking water?
PFAS (forever chemicals) have been detected in water systems across the country, including Tennessee. The EPA finalized enforceable PFAS limits in 2024. Search for your specific water system above to see if PFAS were detected and whether levels exceed the new federal limits.
EPA data last updated: 2026-07-12