South Carolina Tap Water Quality: Is It Safe to Drink?
2026 EPA water quality data for 563 community water systems serving a combined 4,688,299 people in South Carolina. Find your water system to see violations, PFAS results, lead testing, and a safety grade — free.
South Carolina draws drinking water from Piedmont reservoirs, the Santee-Cooper lake system, and Coastal Plain aquifers. Disinfection byproduct violations are the most common compliance issue, particularly among smaller systems. Radium and other naturally occurring radionuclides appear in some Coastal Plain groundwater.
Find Your Water System in South Carolina
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 563 community water systems in South Carolina, by population served. Use the ZIP search above or the city links to find a smaller system.
South Carolina Drinking Water: Frequently Asked Questions
Is South Carolina tap water safe to drink?
South Carolina has 563 community water systems regulated by the EPA serving a combined 4,688,299 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 South Carolina?
There are 563 EPA-regulated community water systems in South Carolina serving a combined 4,688,299 people. Each system is required to test for over 90 contaminants and publicly report any violations.
Does South Carolina have PFAS in its drinking water?
PFAS (forever chemicals) have been detected in water systems across the country, including South Carolina. 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