PFAS in Cumberland County: Understanding Fayetteville’s Water Record and Treatment Options

The EPA’s public water system record for CLIFFDALE WEST serving Fayetteville, Cumberland County, North Carolina, shows multiple detections of PFAS compounds, including PFOA, PFOS, and PFHxS, at concentrations measured in nanograms per litre (ng/L) or parts per trillion (ppt). These findings come from a federal monitoring survey conducted from February to September 2025 and represent system-wide data rather than conditions in any individual household’s water.

Why Granular Carbon Beds and Ion-Exchange Resins Differ in Documented PFAS Treatment

When addressing PFAS, including PFOA and PFOS, water treatment technologies rely primarily on either granular activated carbon (GAC) beds or ion-exchange resins. Granular carbon beds typically adsorb a broad range of organic contaminants, including longer-chain PFAS, by binding them to the carbon surface. Ion-exchange resins, meanwhile, use charged polymer beads designed to attract and trap specific PFAS molecules, often offering improved removal of some compounds like PFHxS.

While both approaches are effective in reducing certain PFAS levels, their documented performance and lifespan can differ depending on the compound types and water chemistry. Understanding these distinctions is important for households whose existing equipment may be struggling to keep up with PFAS concentrations measured in the local water supply.

Firefighting Foam, Textile Finishing, and Landfill Sources: Which Align with Regional PFAS Findings?

The Fayetteville water system’s PFAS profile, with notable detections of PFOA, PFOS, and PFHxS, often points to contamination sources related to historic or ongoing use of aqueous film-forming foam (AFFF) in firefighting training or response activities. Textile finishing processes and landfill leachate can also contribute fluorinated compounds to groundwater drawn by the CLIFFDALE WEST system.

Determining which sources predominate helps contextualize the spectrum of PFAS detected and informs targeted treatment strategies. For example, AFFF-related PFAS may include longer-chain compounds like PFOS and PFHxS, which respond differently to treatment than shorter-chain variants.

Why PFOA and PFOS Are Measured in Nanograms per Litre with Four Decimal Places

PFAS compounds such as PFOA and PFOS are measured in extremely low concentrations, often in the range of parts per trillion (ng/L). Reporting to four decimal places highlights the precision needed to detect these 'forever chemicals' at trace levels relevant to federal regulatory standards. For example, the CLIFFDALE WEST system’s highest PFOA detection was 0.0163 µg/L, or 16.3 ng/L, which is several times above the 2024 federal maximum contaminant level (MCL) of 4 ng/L.

This precision allows for detailed monitoring of compliance and treatment performance but does not by itself indicate violation or unsafe water; rather, it is a measurement to inform decisions and upgrades.

How Public Water System Records Differ from Private Well Testing in Their Meaning

The EPA’s public water system data reflect aggregate testing at system points and provide insight into source water quality and treatment effectiveness across many connections in Fayetteville. This contrasts with private well tests, which show PFAS levels in a single household’s water supply and can vary significantly depending on local geology, contamination points, and plumbing.

Households using public water can refer to the system record as a baseline but should pursue individual well testing if relying on private groundwater. The documented PFAS concentrations from the public system indicate the challenge faced but do not equate to a specific home’s water quality.

How to Compare Fayetteville’s PFAS Record With a Neighboring County Without Overreading

Comparing Fayetteville’s water system results with neighboring counties requires caution. Variations in source water, industrial activities, and monitoring frequency influence PFAS profiles. For instance, the number of detections above reporting levels and the specific PFAS measured can differ, reflecting regional differences rather than overall safety or risk.

A direct comparison should focus on the types of PFAS detected and their measured ranges rather than assuming one county’s results predict another’s household water quality. Such comparisons help households understand their broader regional context but should be supplemented with local testing.

For Fayetteville residents whose current water treatment struggles to keep pace with the documented PFAS concentrations, the C-Series PFAS Forever Chemicals Filter offers a proven approach. It ships ready to configure and utilizes proven technology designed to target the specific per- and polyfluoroalkyl substances found in the CLIFFDALE WEST system, helping households manage "forever chemicals" more effectively based on measured demand.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2025-09-02. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR5 monitoring (2023-2025) for CLIFFDALE WEST (NC0326332), NC: 540 results across 10 listed contaminants, 179 detections above the reporting level; 55 results above a 2024 federal MCL