North Carolina's PFAS story is one of the most-documented regional drinking water contamination cases in the United States. It began publicly in June 2017 when the Wilmington Star-News reported that Chemours' Fayetteville Works facility had been discharging GenX — a PFAS compound used as a replacement for PFOA — into the Cape Fear River. Nearly nine years later, the Cape Fear Public Utility Authority (CFPUA) operates a $43 million granular activated carbon (GAC) treatment upgrade, EPA has set and then revised national PFAS drinking water standards, and North Carolina homeowners are still figuring out what it all means for their tap water.
The 2019 Consent Order
On February 25, 2019, Chemours, Cape Fear River Watch, and North Carolina DEQ signed a Consent Order addressing decades of PFAS contamination from the Fayetteville Works facility. Key provisions: $12 million penalty paid by Chemours, requirements to reduce air and water emissions of GenX and other PFAS compounds, provision of alternate water supplies for affected residents, and an August 2020 Addendum that expanded obligations. The Cape Fear River supplies drinking water to approximately 500,000 people through CFPUA alone, with the full Cape Fear basin serving approximately 1.5 million.
CFPUA's GAC Upgrade
CFPUA responded with the largest GAC installation in North Carolina at the Sweeney Water Treatment Plant. Total cost approximately $43 million including a $35.9 million construction contract to Adams-Robinson. Media volume approximately 3 million pounds of granular activated carbon. Construction began November 2019; came online October 2022. Annual O&M cost approximately $3.7 million (FY23), projected $5 million+ ongoing. GAC removes GenX, PFOA, PFOS, and other PFAS through physical adsorption.
EPA's PFAS Regulation — Current Status April 2026
The original April 10, 2024 rule set PFOA and PFOS MCLs at 4 ppt; PFHxS, PFNA, and HFPO-DA MCLs at 10 ppt; Hazard Index of 1.0; compliance by 2029. On May 14, 2025, EPA issued a significant revision: kept the 4 ppt MCLs for PFOA and PFOS, extended compliance to 2031, and rescinded PFHxS, PFNA, HFPO-DA, and Hazard Index standards pending re-evaluation. Initial monitoring still scheduled for 2027. The enforceable federal limits as of 2026 are PFOA 4 ppt and PFOS 4 ppt.
What Home Filtration Actually Works
Reverse Osmosis: Up to 99% removal across all PFAS chain lengths. NSF/ANSI 58 certification. Point-of-use residential application.
Granular Activated Carbon: 88–99% long-chain PFAS; 60–85% short-chain. NSF/ANSI 53 for residential units. Whole-house application.
Anion Exchange: 94–99% of PFAS6 with specialty resins. Better on short-chain than GAC.
What doesn't work: pitcher filters not specifically certified for PFAS, boiling (does not remove and may concentrate), standard sediment filters.
What NC Homeowners Should Do
CFPUA customers: Your utility treats PFAS at Sweeney Plant via GAC. Current tap water PFAS levels are below federal MCLs per published monitoring. Under-sink RO adds a final drinking-water barrier.
Triangle (Raleigh, Durham, OWASA): Water source different (Falls Lake, Cane Creek/University Lake). PFAS exposure generally lower but not zero. Check current utility CCRs.
Charlotte: Catawba River basin water. Lower documented PFAS than Cape Fear.
Private well owners: Standard well testing does NOT include PFAS. Order a specific test using EPA Method 533 or 537.1 if you live near military facilities, airports, industrial sites, or biosolid application areas.
Aquafeel Solutions Carolina provides free in-home water testing across North Carolina and South Carolina. We test chloramine, hardness, TDS, and discuss utility-specific PFAS data. NSF 42/44/58/61/372 certified. BBB A+. 732+ reviews at 4.9★.
