Fayetteville Water Quality Guide: Sources, PFAS, Wells & Filters

Where does Fayetteville's tap water come from?

All of the water PWC treats is surface water. PWC operates two treatment plants, according to its water treatment page and its 2025 Water Quality Report:

• P.O. Hoffer plant: draws from the Cape Fear River.
• Glenville Lake plant: draws from the Cape Fear River, Big Cross Creek and the Little Cross Creek watershed, which includes Bonnie Doone Lake, Kornbow Lake, Mintz Pond and Glenville Lake.

Both plants feed one distribution system, so customers receive a blend. The report notes that a 2020 state Source Water Assessment rated the Cape Fear River and Glenville Lake as having "Higher" susceptibility to contamination, and adds that this rating does not mean the water is of poor quality.

PWC serves customers inside and outside the city limits. Its water service page says PWC merged with the Town of Hope Mills in 1998, sells water wholesale to Spring Lake, Stedman and Hoke County, and has supplied Fort Liberty since 2010 under a 40-year contract with the Department of Defense, jointly with Harnett County Public Utilities.

How does PWC treat and disinfect the water?

PWC lists these steps at both plants: ferric sulfate to clump particles so they settle out, filtration through sand and anthracite, ammonia and chlorine for disinfection, lime or caustic soda with a corrosion inhibitor to reduce lead and copper leaching from household plumbing, fluoride for dental health, and powdered activated carbon to reduce taste and odor compounds.

Chloramine is the main disinfectant

Adding ammonia to chlorine forms chloramine. The 2025 report lists chloramine residuals of 1.91 to 3.42 ppm, with a running annual average of 2.91 ppm, below the 4.0 ppm limit. It says dialysis patients and fish owners need special precautions with chloraminated water. If that applies to you, our chloramine removal guide explains the general options, though it was written for Charlotte.

The report also lists disinfection byproducts below their limits: TTHM averaged 38 ppb (limit 80) and HAA5 averaged 24 ppb (limit 60). Fluoride averaged 0.60 ppm and pH averaged 7.8. The report does not include a hardness value, so check with PWC customer service if you are sizing a softener.

What about PFAS and GenX in Fayetteville's water?

PWC's PFAS Facts page attributes PFAS in the Cape Fear River to upstream manufacturing and product use, and says conventional treatment cannot remove them. The 2025 report says GenX discharges are reported well downstream of PWC's intake, but that PFAS have been found in PWC's own sampling.

Two numbers matter. The first is the new federal limit. EPA's PFAS drinking water rule set enforceable limits of 4.0 parts per trillion (ppt) for PFOA and PFOS, based on annual averages, with compliance starting in 2029. EPA has since proposed keeping those two limits while letting systems request two extra years, to 2031, and proposed rescinding the limits on several other PFAS. Those 2026 changes are proposals, not final rules.

The second is what PWC measured. The 2025 report lists 2023-2024 monitoring results in parts per billion. For PFOA the range was 0.0063 to 0.011 ppb (about 6 to 11 ppt). For PFOS it was 0.0112 to 0.0218 ppb (about 11 to 22 ppt). These were monitoring samples, not compliance determinations under the new rule, and the report does not list an MCL for any PFAS compound. The report links to PWC's monthly results for newer data.

What PWC says it is doing

• A powdered activated carbon upgrade was completed in spring 2026.
• A granular activated carbon (GAC) upgrade is expected to be operating in summer or fall 2029.
• PWC projects the GAC project at about $133 million, with funding still to be secured for part of it. It gives the full funding breakdown on its PFAS Facts page.

PWC also cites EPA's estimate that about 70% of consumer exposure to emerging contaminants comes from sources other than drinking water. For a plain-English overview of PFAS and home filters, see our PFAS guide for homeowners.

How do I read PWC's annual Water Quality Report?

1. Open PWC's Water Quality Report page. The current report is a PDF, and reports from 2018 to 2024 are archived there.
2. Confirm the system number. PWC's Fayetteville system is NC 03-26-010.
3. Find the detected-contaminants tables. Compare each "level found" against the MCL (the legal limit). "ND" means not detected.
4. Go to the PFAS table. Note the units: the report uses parts per billion, while EPA's new limits are stated in parts per trillion. Multiply ppb by 1,000 to get ppt.
5. Check the disinfection section for chloramine levels and the March ammonia pause.
6. Read the lead and copper section. The 2023 sampling showed a 90th percentile of not detected for lead.
7. You can also request a free local water report to go alongside it, and call PWC customer service at (910) 483-1382 with questions.

Why do some Fayetteville homeowners still filter?

Legal compliance and personal preference are different things. Reasons people in the area commonly give include:

• PFAS: limits take effect in 2029, and the GAC upgrade is expected the same year. Some households prefer a certified filter in the meantime.
• Taste and odor: chloramine, chlorine and seasonal surface-water compounds can affect taste.
• Chloramine-sensitive uses: aquariums, and home dialysis, where the utility advises precautions.
• Older plumbing inside the home, which a utility cannot control (see below).

If you are unsure whether a whole-house system makes sense, start with our guide on whether you need a whole-house water filter.

What about lead service lines and old plumbing?

PWC's 2025 report says material has been identified for more than 95,800 services under its Operation Clean and Clear inventory and that no lead service lines have been found so far. Its Operation Clean and Clear page explains that the inventory map only includes properties whose owners submit their results, and invites customers who cannot confirm their pipe material to send in photos or use the survey.

Service lines are only part of the picture. Older homes can have lead solder, brass fixtures or galvanized pipe inside. PWC adds a corrosion inhibitor to reduce leaching, but if you want certainty, have a state-certified lab test water drawn from your own tap.

Fayetteville-area situations: what should I do?

Hope Mills, Spring Lake and Fort Liberty

Hope Mills is part of the PWC system. Spring Lake is a different case: the Town's 2025 water quality report says it buys surface water from both Fayetteville PWC and Harnett Regional Water, and reports chlorine and chloramine disinfection. That report lists a monitoring violation for disinfection byproducts in November 2025, which the town says it has addressed. Harnett Regional Water's section of the same document lists PFAS monitoring results and a pilot project to reduce PFAS. Read the Spring Lake report rather than assuming PWC's numbers apply to you.

Some parcels around Spring Lake rely on private wells. A 2023 Military Times report described Fort Liberty seeking permission to test well water on 18 Spring Lake parcels for PFOA and PFOS, after groundwater on the installation was found above EPA's then-advisory level. If you are on a well near the installation, ask the base or your county health department what testing is available.

Private wells in the Sandhills and coastal plain

Private wells are the owner's responsibility. The NC Division of Public Health says "it is up to you to test your water" (private well program). Two issues come up often in the state's guidance:

• Iron: the state's iron fact sheet says acidic water dissolves iron more readily, that EPA and NC's aesthetic level is 0.3 mg/L (staining, rusty color, metallic taste), and that NC's health-based value is 2.5 mg/L. It lists oxidizing filters and cation exchange (softeners) as treatment options.
• Low pH: the state's pH fact sheet says the guideline range is 6.5 to 8.5, that low pH can corrode plumbing, and that a neutralizer can reduce acidity.

The state's maps show which areas have wells outside these ranges, so look up Cumberland County before assuming either problem applies to your well. Our well water filtration guide covers equipment in general terms, though it was written for Charlotte.

If X, then do Y

When should I test my water?

For private wells, the NC Division of Public Health's testing FAQs recommend the following schedule for existing wells:

• Every year: total and fecal coliform bacteria, and a wellhead inspection.
• Every two years: heavy metals, nitrates, nitrites, lead and copper.
• Every five years: pesticides and volatile organic compounds.

Test sooner after flooding, after well repairs, or if taste, color or odor changes. New wells should be tested within 30 days of completion. City-water customers should test only for a specific reason, such as lead in an older home or a new taste, because the utility already tests the water it delivers.

Which treatment option fits which concern?

To understand the trade-off between a softener and a filter, see whole-house filter vs. water softener. For budgeting, our whole-house filter cost guide gives typical ranges, though it is based on Charlotte-area projects.

What should I ask a water treatment installer?

• Which NSF/ANSI standard is this product certified to, and for which contaminants?
• Can you show the certification listing for this exact model?
• What test result is this recommendation based on?
• How often do media or cartridges need replacing, and what does that cost?
• What happens to water pressure and flow in my home?
• For a softener or iron filter, how much water does regeneration or backwashing use, and where does it drain?
• Will the system work with chloramine, if I am on PWC water?
• What does the warranty cover, and who services the system?

Browse water treatment companies in Fayetteville in our directory. Listings are informational, not endorsements, so compare more than one quote and check licensing yourself.