Tap Water Results

North Carolina tap water quality

1,982 community water systems serving 9.7 million people.

Data: U.S. EPA · How we read the data · How we check it

66
systems with PFAS above a federal limit
2.5 million
people served by them
285
systems EPA tested for PFAS
5
systems above the lead action level

PFAS: EPA's 2023–2025 testing. Lead: results from the last five years. 12 more systems have no recent lead results in EPA's database.

Water systems with PFAS above the federal limit

Based on EPA's UCMR 5 results (2023–2025) compared to the April 2024 limits, the way EPA compares them. Systems have until 2029 to comply. Largest first.

And 20 more in the full list of North Carolina utilities below.

North Carolina PFAS report: chart, rankings and data to download →

Largest water systems in North Carolina

North Carolina cities and towns

Most health-based violations since 2016

All North Carolina utilities on this site

Every North Carolina system serving 50,000+ people or with PFAS above a federal limit, A to Z. Download all 1,982 systems as CSV.

Questions

Does North Carolina tap water have PFAS?

EPA tested 285 community water systems in North Carolina for 29 PFAS between 2023 and 2025. 120 had at least one regulated PFAS detected, and 66 had an entry-point average above a 2024 federal limit. Those 66 systems serve about 2.5 million people (26% of people on community water in North Carolina). Systems have until 2029 to meet the limits.

How many North Carolina water systems have violations?

484 systems in North Carolina had at least one health-based violation since 2016 (1,148 violations in total). 85 violations are currently listed as unaddressed.

Which North Carolina water systems are over the lead action level?

5 systems had a lead 90th percentile above the 15 ppb action level in their most recent results from the last five years. Another 12 systems have no lead results in EPA's database from the last five years, including 2 whose last result was above the action level. Lead depends on each home's pipes, so a test of your own tap is the only way to know your level.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.