Water in North Carolina.
The Cape Fear River basin downstream of Chemours' Fayetteville Works is one of the most contaminated PFAS watersheds in the country, with the discovery of GenX driving 2017 federal attention. Coal-ash contamination from Duke Energy sites adds heavy-metal exposure in multiple regions.
GenX was discovered in the Cape Fear River in 2017 and helped reshape U.S. PFAS policy.
How North Carolina regulates drinking water.
Federal SDWA primacy. Active Chemours consent order requires GenX remediation. No state MCLs stricter than federal but aggressive enforcement in Cape Fear.
North Carolina Department of Environmental Quality — Division of Water Resources
North Carolina's water history, in order.
The contamination events, regulatory shifts, and major settlements that define how this state thinks about drinking water today.
- 2017
GenX (HFPO-DA) discovered in the Cape Fear River — first major news of next-generation PFAS.
- 2019
Chemours signs consent order requiring source reduction and household filter provision.
- 2023
Multi-state Chemours / DuPont PFAS settlement reaches $1B.
The actual water you drink.
The physical rivers, aquifers, lakes, and reservoirs that feed North Carolina's public water systems. Source quality is the foundation of tap quality — and where the long-term protection fights happen.
- riverCape Fear River
Lower Cape Fear including Wilmington — downstream of Chemours.
- riverCatawba River
Charlotte metro.
- riverNeuse + Tar-Pamlico Rivers
Raleigh metro + coastal NC.
- riverYadkin-Pee Dee
Greensboro / Winston-Salem.
Source-water mix
~70% surface water, ~30% groundwater
Major cities served
Charlotte · Raleigh · Greensboro · Durham · Winston-Salem · Fayetteville
Who actually serves the water.
The largest public water systems in North Carolina by population served. Click your ZIP after to see the full live EWG report for your specific utility.
- Charlotte WaterCharlotte metro1,200Kserved
- Raleigh WaterRaleigh metro600Kserved
- Cape Fear Public Utility AuthorityWilmington· Primary affected utility downstream of Chemours.Primary affected utility downstream of Chemours.200Kserved
- Greensboro Water ResourcesGreensboro300Kserved
Where the contamination comes from.
Every state has a different industrial fingerprint. The industries below are the dominant historical and active contamination sources in North Carolina's drinking water systems.
Chemours Fayetteville Works is the largest documented PFAS / GenX source in the U.S. Coal-ash impoundments at Duke Energy sites (Dan River 2014 spill, Goldsboro) raise heavy-metal concerns. Hog CAFOs in eastern NC drive nutrient and bacterial loading.
What state data flags most consistently.
Drawn from EPA SDWIS sampling records, EWG state summaries, and regional regulatory action over the past five years. Read the full deep dive on each.
PFAS (Forever Chemicals)
A class of ~15,000 synthetic chemicals that don't break down. Now regulated for the first time.
Chromium-6 (Hexavalent Chromium)
The Erin Brockovich chemical. A known carcinogen with no federal-specific limit yet.
Trihalomethanes (TTHMs)
Byproducts of chlorinating water. Linked to bladder cancer at chronic exposure.
Lead
A neurotoxic metal that leaches from old pipes and solder. No safe level for children.
Risk isn't evenly distributed.
Lower Cape Fear residents in Wilmington / Brunswick / New Hanover face the most-documented GenX and PFAS exposure. Coal-ash-affected communities face heavy-metal risk.
~25% on private wells — one of the highest in the U.S. — concentrated in rural agricultural areas.
What's coming for North Carolina's water.
Hurricane intensity (Florence 2018, Matthew 2016) overwhelms eastern NC treatment plants and CAFO lagoons. Coastal sea-level rise threatens Outer Banks freshwater. Cape Fear basin drought-flood swings stress treatment.
Voluntary statewide
NC Department of Health and Human Services provides voluntary technical assistance. Several districts have published voluntary results.
Five questions for your next Consumer Confidence Report.
Your utility is required to send you a Consumer Confidence Report annually. Most are dense and procedural. These are the questions worth following up on for North Carolina specifically.
- 1
If I'm in the lower Cape Fear, has my well been tested for GenX (HFPO-DA)?
- 2
Has my system been impacted by any Duke Energy coal-ash basin?
- 3
What is my utility's PFAS Phase 1 sampling status under EPA's 2024 rule?
Most state regulators allow public records requests for the underlying lab reports behind your CCR — your utility should be able to provide them on request.
What's changed in North Carolina water law.
Drinking water regulation moves at the state level as much as the federal level. Below are notable recent bills and regulatory actions specific to North Carolina.
- 2023
PFAS NC Notification Act — utility customer notification requirements.
For PFAS / GenX: NSF/ANSI P473 or reverse osmosis. Chemours-provided POE systems available to affected households.
We don't recommend brands — the NSF/ANSI certification number matters more than the name on the box.
This is the state. Your address is the answer.
State-level patterns don't tell you about your specific tap. Run your ZIP for the live EWG contaminant report on your utility — or build a personalized Water File for your household.
Source-water mix, utility counts, lead-service-line estimates, and private-well shares are approximate, drawn from EPA SDWIS public data and state primacy-agency summaries. Contaminant rankings reflect EWG state-level monitoring data and regional regulatory action — they are not exhaustive. Timeline events are publicly documented. See methodology for the full sourcing. Search EPA SDWIS for North Carolina