South Carolina Tap Water Quality
Check a South Carolina ZIP Code
Overview
South Carolina's major systems (Charleston Water, Columbia, Greenville Water's protected mountain reservoirs) meet all federal standards, with Greenville's supply regarded as one of the Southeast's best.
The cautionary tale is Denmark, the small town whose decade-long use of an unapproved well additive (HaloSan) and discolored water became a national environmental-justice story. More broadly the state faces PFAS in the rivers that supply the Midlands and Pee Dee, radium in some coastal-plain aquifers, and struggling small systems that the state has pushed to consolidate.
Common Contaminants in South Carolina
River detections above new federal limits affect several Midlands and Pee Dee systems now planning treatment; textile-industry legacy contributes
Naturally occurring exceedances in a band of coastal-plain groundwater systems
The routine small-system exceedance, especially in warm months
Violations & Compliance
Metro systems comply consistently. Denmark's saga drove reforms in state oversight of small systems; radium and DBP violations in small systems remain the routine enforcement load.
City Reports for South Carolina
We haven't published individual city water reports for South Carolina yet. Use the ZIP lookup for a statewide assessment, and check your utility's annual Consumer Confidence Report for local detail.
Frequently Asked Questions
Sources & References
The safety rating and guidance on this page draw on the following sources. See our full methodology.
- •US EPA Safe Drinking Water Act regulations
- •EWG Tap Water Database
- •The utility's most recent Consumer Confidence Report (CCR)
- •WHO Guidelines for Drinking-water Quality