Greenville NC Water Quality Report
Explore where Greenville drinking water comes from, how Greenville Utilities treats it, selected 2025 testing results, PFAS monitoring, lead and copper data, and the official 2026 Water Quality Report.
What the Latest Greenville Water Quality Report Covers
Greenville Utilities Commission's 2026 Water Quality Report summarizes drinking-water monitoring and system information for 2025. GUC reports that it met or surpassed federal and state drinking-water standards, while also reporting one Tier 3 monitoring violation after 99 of 100 required bacteriological distribution samples were collected in May 2025.
- Water systemGreenville Utilities Commission, system 04-74-010
- Primary sourceTar River surface water, supplemented by three deep wells
- Plant capacity32.0 million gallons per day
- 2025 average treated15.03 million gallons per day
- Secondary disinfectantChloramines formed from chlorine and ammonia
- Monitoring noticeOne Tier 3 Total Coliform Rule monitoring violation in May 2025
Where Greenville Tap Water Comes From
Greenville Utilities draws primarily from the Tar River. Water first enters a 63-million-gallon pre-settling reservoir, then moves through clarification before ozone, filtration and final chemical treatment. Three deep wells can supplement the surface-water supply.
GUC also adds fluoride, uses sodium hydroxide to raise pH, and adds phosphate for corrosion control before finished water enters storage and the distribution system.
View the 2026 Greenville Water Quality Report
The embedded document below is Greenville Utilities Commission's 2026 Water Quality Report covering 2025 system operations and water-quality monitoring.
Highlights From Greenville's Official Water-Quality Data
The 2026 report lists substances detected in GUC's treated water during 2025 unless otherwise noted. The table below highlights selected results; use the full report for complete ranges, definitions and footnotes.
| Substance or Measure | Reported Result | Standard or Context | Report Status |
|---|---|---|---|
| Chloramines | 2.75 ppm system average | MRDL 4.0 ppm | Within reported limit |
| Chlorine | 2.42 ppm system average | MRDL 4.0 ppm | Within reported limit |
| Fluoride | 0.68 ppm | MCL 4.0 ppm | Within reported limit |
| Haloacetic Acids | 30 ppb highest locational running annual average | MCL 60 ppb | Within reported limit |
| Total Trihalomethanes | 30 ppb highest locational running annual average | MCL 80 ppb | Within reported limit |
| Turbidity | 0.28 NTU; 100% of samples below 0.3 NTU | 1.0 NTU and 95% below 0.3 NTU treatment technique | Met treatment technique |
| Lead (2024 sampling) | 0.0 ppb at the 90th percentile | 15 ppb action level | 0 sites exceeded action level |
| Copper (2024 sampling) | 0.2 ppm at the 90th percentile | 1.3 ppm action level | 0 sites exceeded action level |
The report does not publish a household hardness value or a numeric finished-water pH in this summary. It does state that sodium hydroxide is added to increase pH.
PFAS Results Included in Greenville's Report
Greenville Utilities includes PFAS results from Unregulated Contaminant Monitoring Rule sampling. The published table reports detections for several PFAS compounds and non-detects below the reporting level for others.
| PFAS Compound | Highest Level Detected | Reported Range |
|---|---|---|
| PFOA | 7.6 ppt | <4 to 7.6 ppt |
| PFOS | 6.3 ppt | <4 to 6.3 ppt |
| PFNA | <4 ppt | <4 ppt |
| PFHxS | <4 ppt | <4 ppt |
| PFBS | 6.1 ppt | <4 to 6.1 ppt |
| HFPO-DA (GenX) | <4 ppt | <4 ppt |
| PFBA | 6.9 ppt | <4 to 6.9 ppt |
| PFPeA | 5.1 ppt | <4 to 5.1 ppt |
| PFHxA | 5.1 ppt | <4 to 5.1 ppt |
What Else Stands Out in Greenville's Latest Report?
Standards Met
GUC reports that it met or surpassed federal and state drinking-water standards in 2025.
Lead Service Lines
GUC reports that its service-line inventory found zero lead service lines on either the utility or customer side of surveyed meters.
PFAS Monitoring
The report includes UCMR PFAS results and describes GUC's ongoing monitoring of river and treated water.
One Monitoring Violation
GUC received a Tier 3 Total Coliform Rule monitoring violation after collecting 99 instead of 100 required bacteriological distribution samples in May 2025.
A monitoring violation is not the same as a contaminant-limit exceedance.
The report identifies this as a failure-to-monitor violation caused by a sample-count tallying error. GUC states that it met or surpassed federal and state drinking-water standards during 2025.
What the Greenville Water Quality Report Does—and Does Not—Tell You
The report explains Greenville's municipal water source, treatment process, system monitoring and regulatory results. It does not diagnose the water at one individual faucet.
What the Report Tells You
- Where Greenville municipal drinking water comes from.
- How Greenville Utilities treats and disinfects the public water supply.
- Which regulated substances were detected and reported.
- How selected results compare with regulatory limits or action levels.
- System-wide information about lead, copper and PFAS monitoring.
What It May Not Tell You About Your Home
- Conditions caused by plumbing, fixtures or a particular service line.
- How water tastes, smells or feels at a specific property.
- A property-specific hardness or pH reading.
- Conditions in a private well, which is a separate water source.
Explore Local Water Treatment Options
Water Problems
Review Greenville contaminant, disinfectant and PFAS information in more detail.
Explore water problems →Reverse Osmosis
Learn about highly filtered drinking and cooking water at a dedicated faucet.
Explore reverse osmosis →Water Conditioners
Compare whole-home conditioning for hardness, scale and other household water goals.
Explore water conditioners →PFAS Water Filters
Compare targeted whole-home and drinking-water filtration for PFAS concerns.
Explore PFAS filtration →Well Water Treatment
Explore treatment for iron, sulfur odor, acidity and other private-well conditions.
Explore well-water treatment →Free Water Test
Schedule an in-home evaluation for hardness and common aesthetic water concerns.
Schedule a free water test →Greenville NC Water Quality Report FAQs
What year does the 2026 Greenville Water Quality Report cover?
The 2026 report summarizes Greenville Utilities system information and drinking-water monitoring for 2025, with some results such as lead and copper identified as 2024 sampling.
Where does Greenville NC drinking water come from?
Greenville Utilities receives its primary source water from the Tar River. Three deep wells supplement the surface-water supply.
How is Greenville drinking water treated?
GUC uses settling and clarification, ozone for primary disinfection, filtration, and additional chemical treatment. Chlorine and ammonia form chloramines for secondary disinfection in the distribution system.
Did Greenville Utilities have a drinking-water violation in 2025?
GUC reports one Tier 3 monitoring violation after 99 of 100 required bacteriological distribution samples were collected in May 2025. The report describes it as a failure-to-monitor violation caused by a tallying error and states that GUC met or surpassed federal and state drinking-water standards.
Were PFAS detected in Greenville water?
Yes. GUC's published UCMR table reports measurable levels of PFOA, PFOS, PFBS, PFBA, PFPeA and PFHxA, while PFNA, PFHxS and GenX were reported below 4 ppt in that sampling table.
Does the city report give Greenville water hardness or pH?
The latest report does not publish a household hardness value or a numeric finished-water pH in its main results. It does state that sodium hydroxide is added during treatment to increase pH.
Does the municipal report test the water inside my house?
No. The report summarizes public-system monitoring. Conditions at a particular faucet can also be influenced by service-line materials, household plumbing and fixtures.
How can I test water at my Greenville home?
East Coast Water Quality offers a free in-home evaluation for hardness and common aesthetic concerns. Specialized laboratory testing may be required for contaminants that cannot be measured through an in-home screening.
Have Questions About Water at Your Greenville Home?
Schedule a free in-home water evaluation to explore hardness, taste, odor and the treatment goals that matter at your property.
Virginia:
Virginia Beach, Norfolk, Chesapeake, Newport News, Hampton, Portsmouth, Suffolk, Williamsburg, Smithfield, Gloucester, Yorktown, Poquoson, Isle of Wight, Carrollton, Seaford, Grafton, Franklin, Emporia, Cape Charles, Courtland, Wakefield, Windsor, Naval Air Station Oceana, Naval Station Norfolk, Langley Air Force Base, Fort Eustis, Fort Monroe
North Carolina:
Raleigh, Durham, Fayetteville, Wilmington, Apex, Burlington, Wake Forest, Garner, Greenville, Jacksonville, Goldsboro, New Bern, Clayton, Kinston, Elizabeth City, Havelock, Hope Mills, Southern Pines, Pinehurst, Laurinburg, Lumberton, Henderson, Tarboro, Morehead City, Washington, Oak Island, Kill Devil Hills, Carolina Beach, Moyock, Shallotte, Williamston, Hampstead, Beaufort, Surf City, Whiteville, Newport, Ahoskie, Edenton, Swansboro, Plymouth, Emerald Isle, Kitty Hawk, Nags Head, Windsor, Sneads Ferry, Hubert, Hertford, Rocky Point, Manteo, Atlantic Beach, Camden, Castle Hayne, Bayboro, Maysville, Riegelwood, Creswell, Vanceboro, Oriental, Roper, Aulander, Rich Square, Currituck, Winton, Corolla, Camp Lejeune
Hampton Roads VA / Northeast NC
3400 Airline Boulevard, Portsmouth VA 23701
757-966-7600
Jacksonville NC / Morehead City NC
2582 NC-24, Newport NC 28570
252-777-5151
Wilmington NC / Leland NC
1026 Appleton Way NE #130, Leland, NC 28541
910-807-2300
Raleigh-Durham NC / Garner NC
313F Highway 70 East, Garner, NC 27529
919-238-9900
Get Water Solutions
East Coast Water Quality are a PROUD SPONSOR of:
