Water quality
North Carolina water quality
According to the NC Department of Environmental Quality (DEQ), NC DHHS, and the Southern Environmental Law Center, North Carolina's most prominent drinking-water issue is PFAS contamination of the Cape Fear River basin linked to the Chemours (formerly DuPont) Fayetteville Works facility. The Cape Fear basin supplies drinking water for more than 1.5 million North Carolinians, and a 2019 Consent Order required Chemours to sharply reduce discharges. Most systems meet federal standards, but PFAS, including GenX, remains a documented regional concern.
Documented considerations
PFAS
According to NC DEQ and the Southern Environmental Law Center, PFAS including GenX from the Chemours Fayetteville Works site have contaminated the Cape Fear River, with tests indicating impacts to drinking water serving more than 500,000 North Carolina residents.
GenX
According to NC DHHS, GenX (HFPO-DA) and related PFAS were discharged into the Cape Fear River basin, which supplies drinking water for over 1.5 million North Carolinians, prompting a 2019 Consent Order with Chemours.
Disinfection byproducts
According to water-quality databases, trihalomethanes and other chlorination byproducts are commonly detected in North Carolina systems using surface water, a typical concern statewide.
EPA compliance snapshot
From the EPA ECHO Safe Drinking Water Act database, North Carolina community water systems carrying one or more violations on record:
Most common violation categories
- Revised Total Coliform Rule (196)
- Lead and Copper Rule (86)
- Total Haloacetic Acids (HAA5) (54)
- Public Notice (52)
- TTHM (41)
- Nitrate (40)
Counts are public EPA ECHO figures. 'Health-based' means a system carries at least one health-based violation flag in ECHO. A violation on record is not a statement that current tap water is unsafe; most systems return to compliance. Always check your utility's Consumer Confidence Report for current status. Source: EPA ECHO, retrieved 2026-06-01.
Certified filters for North Carolina's main concerns
- 7.5Culligan US-EZ-4 Under-Sink
An under-sink filter genuinely IAPMO certified to NSF/ANSI 42, 53 and 401 for lead, cysts, VOCs, mercury and PFOA/PFOS.
- 7.2Aquasana AQ-5200 Under-Sink
Certified for lead and PFAS, cheap per gallon, marketing matches the certified scope.
- 7.2AquaTru Classic Countertop RO
A no-plumbing countertop 4-stage RO purifier certified to NSF standards for lead, PFAS, fluoride and arsenic with an efficient drain ratio.
- 4.9ZeroWater 5-Stage Pitcher (7-Cup)
A five-stage ion-exchange pitcher certified for lead, chromium-6 and PFOA/PFOS - but a short 15-gallon filter makes it costly to run.
FAQ
- What is GenX and why does it matter in North Carolina?
- According to NC DHHS and DEQ, GenX (HFPO-DA) is a PFAS compound discharged into the Cape Fear River from the Chemours Fayetteville Works site. The river basin supplies drinking water for more than 1.5 million people, which is why it became a focus of state regulation and a 2019 Consent Order.
- Is Cape Fear region drinking water safe?
- According to NC DEQ, utilities such as the Cape Fear Public Utility Authority have added advanced treatment to reduce PFAS, and Chemours was ordered to cut discharges. Residents concerned about PFAS can review utility testing data and consider a PFAS-certified filter.
- Do I need a water filter in North Carolina?
- Most North Carolina public systems meet federal standards. According to DEQ and SELC, the most documented concern is PFAS in the Cape Fear basin, so residents in affected areas may want a filter certified for PFAS reduction.
Sources
- NC DEQ - GenX Investigation
- NCDHHS - GenX and PFAS in the Cape Fear River Basin
- Southern Environmental Law Center - PFAS in Cape Fear drinking water
Not sure how to read your local report? See our guide on reading a water quality report.