Question 1

Is the water in Columbia County safe to drink?

Accepted Answer

Columbia County, SC water systems must meet federal EPA drinking water limits. Columbia County water systems are tracked through EPA UCMR5, SDWIS, and LCR data. Check the systems table on this page for utility-by-utility detail.

Question 2

How many water systems in Columbia County have PFAS?

Accepted Answer

EPA UCMR5 PFAS testing is being compiled for the public water systems serving Columbia County, SC. See the systems table for current results.

Question 3

What contaminants are tracked in Columbia County water?

Accepted Answer

Columbia County water systems are tested for 29 PFAS compounds (UCMR5), lead and copper (LCR), and 42+ regulated contaminants including arsenic, nitrate, and disinfection byproducts under SDWIS reporting.

Question 4

Which water filter should I use in Columbia County?

Accepted Answer

Reverse osmosis systems remove 90%+ of PFAS, lead, and arsenic – the most common contaminants flagged across South Carolina water systems. For lead specifically, NSF Standard 53 certified pitcher or faucet filters work well.

Question 5

Where does Columbia County, SC water come from?

Accepted Answer

Most Columbia County residents are served by surface water (reservoirs, rivers) or groundwater (wells, aquifers) depending on the utility. Each water system on this page lists its primary source and test history.

Question 6

How can I check my specific ZIP code in Columbia County?

Accepted Answer

Enter your ZIP code on the KnowYourExposure homepage to see the exact public water utility serving your address, plus its latest PFAS, lead, and EPA contaminant test results.

Columbia County, SC Water Quality (2026): PFAS & Lead

Water Quality in Columbia County, SC