Jacksonville NC Water Quality Report
See where Jacksonville drinking water comes from, how the city's two groundwater sources are treated, and what the latest annual report shows for chlorine, disinfection byproducts, lead, copper and other reported water-quality measures.
What the Latest Jacksonville Water Quality Report Covers
Jacksonville's 2025 Annual Drinking Water Quality Report was issued in May 2026 and primarily summarizes testing from January 1 through December 31, 2025. Because some contaminants are monitored less often, the report also includes representative results from earlier sampling periods.
What homeowners should know: Jacksonville's report shows a groundwater-based municipal system with different treatment paths depending on the aquifer. The report also notes that some water-quality data may be more than one year old when regulations allow less-frequent monitoring.
Where Jacksonville Tap Water Comes From
The latest City report describes two groundwater sources. Fifteen Cretaceous wells draw from the Upper and Middle Black Creek Aquifer, generally along US 258 and Gum Branch Road near Richlands. Twenty additional wells draw from the shallower Castle Hayne Aquifer and send that water to Jacksonville's nanofiltration plant.
View the 2025 Jacksonville Drinking Water Quality Report
The document below is the City of Jacksonville's 2025 Annual Drinking Water Quality Report, issued May 2026. It includes source-water information, regulatory definitions, detected-contaminant tables and contact information for the City's Utilities Maintenance Division.
Highlights From Jacksonville's Official Water-Quality Data
The table below pulls out selected values from Jacksonville's latest annual report. The report uses different sampling years for different contaminant groups, so each row keeps the sampling period shown by the City.
| Substance or Measure | Jacksonville Reported Result | Standard or Context | Report Status |
|---|---|---|---|
| Chlorine | 2025 RAA 0.82 ppm; range 0.20–1.93 ppm | MRDL 4.0 ppm | No MRDL violation reported |
| Total Trihalomethanes (TTHM) | September 2025: 44 ppb; range 37–44 ppb | MCL 80 ppb | No MCL violation reported |
| Haloacetic Acids (HAA5) | September 2025: 7 ppb; range 6–7 ppb | MCL 60 ppb | No MCL violation reported |
| Lead | July 2023 90th percentile <3 ppb | Action level 15 ppb | 0 of 30 sites above action level |
| Copper | July 2023 90th percentile <0.05 ppm | Action level 1.3 ppm | 0 of 30 sites above action level |
| Fluoride | April 2023 highest 1.2 ppm; range 0.2–1.2 ppm | MCL 4 ppm | No MCL violation reported |
| Sodium | April 2023 average 147 ppm; range 33–207 ppm | No SMCL listed in the report | Reported miscellaneous water characteristic |
| pH | April 2023 range 8.0–8.6 | SMCL 6.5–8.5 | Secondary aesthetic guideline context |
This summary is not a substitute for the official report. Read the complete PDF for measured ranges, definitions, sampling dates, footnotes and regulatory context.
Jacksonville's Latest Report Lists Lithium Under UCMR Monitoring
Jacksonville's report includes an Unregulated Contaminant Monitoring Regulation entry for lithium from June and November 2023. The City explains that unregulated-contaminant monitoring helps EPA understand how often these substances occur and whether future regulation may be warranted.
| Unregulated Contaminant | Sampling Period | Jacksonville Average | Measured Range |
|---|---|---|---|
| Lithium | June / November 2023 | 7.02 ppm | 5.99–9.04 ppm |
Important: The latest Jacksonville annual report's UCMR table lists lithium. It does not provide a PFAS results table in this section, so the absence of PFAS values here should not be interpreted as a statement that PFAS are present or absent at an individual home.
What Else Stands Out in Jacksonville's Latest Report?
Several 2025 Results Were Below Detection
The report says microbiological contaminants, nitrate nitrogen and nitrite nitrogen were sampled during 2025 and were all below detection limits.
Lead Can Be Influenced by Home Plumbing
Jacksonville explains that lead in drinking water is primarily associated with service lines and plumbing materials. The report's latest lead sampling summary shows zero of 30 sampled sites above the action level.
Two Treatment Paths Feed One System
Black Creek water requires chlorination for disinfection, while Castle Hayne water is treated by nanofiltration before the two supplies are blended in Jacksonville's distribution system.
Source-water susceptibility is not the same as finished-water quality
The report includes a North Carolina Source Water Assessment Program summary that rates individual wells for susceptibility to potential contaminant sources. Jacksonville specifically notes that a higher susceptibility rating does not mean the water itself has poor quality; it describes the source's potential to become contaminated.
What the Jacksonville Water Quality Report Does—and Does Not—Tell You
Jacksonville's annual report explains the municipal supply, treatment process and regulatory monitoring for the public water system. It is not a complete water analysis for every individual home.
What the Report Tells You
- Where Jacksonville's municipal drinking water comes from.
- How Black Creek and Castle Hayne groundwater are treated.
- Which regulated and selected unregulated substances were reported.
- How selected results compare with MCLs, action levels or other regulatory benchmarks.
- City-wide information about chlorine, disinfection byproducts, lead, copper and other reported measures.
What It May Not Tell You About Your Home
- Conditions caused by an individual service line, plumbing system or fixtures.
- How water tastes, smells or feels at one specific property.
- The exact concentration of a substance at your faucet unless your home was part of that specific sampling.
- Conditions in a private well, which is separate from Jacksonville's municipal water system.
- Which treatment approach best matches a specific household concern.
Explore Local Water Treatment Options
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Water Problems
Review local contaminant data, household concerns and treatment options.
Explore water problems →Reverse Osmosis
Learn about highly filtered drinking and cooking water from a dedicated faucet.
Explore reverse osmosis →Whole-Home Conditioners
Explore whole-home conditioning options for household water-quality goals.
Explore whole-home conditioning →PFAS Water Filters
Learn about whole-home PFAS filtration and reverse-osmosis drinking-water treatment.
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 common household water concerns.
Schedule a free water test →Jacksonville NC Water Quality Report FAQs
What year does Jacksonville's latest drinking water report cover?
The City's latest report is titled the 2025 Annual Drinking Water Quality Report and was issued in May 2026. Most of the monitoring summarized in the report is from 2025, while some contaminants were sampled in earlier years because regulations allow less-frequent monitoring when concentrations are not expected to vary significantly.
Where does Jacksonville NC drinking water come from?
The latest City report describes two groundwater sources: the Upper and Middle Black Creek Aquifer and the Castle Hayne Aquifer. Fifteen Cretaceous wells draw from the Black Creek source, while 20 Castle Hayne wells supply the City's nanofiltration plant.
How is Jacksonville city water treated?
According to the report, Black Creek water requires chlorination for disinfection. Castle Hayne water is treated to remove organics and improve taste and smell at the City's nanofiltration plant, then enters the distribution system and blends with Black Creek water.
What did Jacksonville report for TTHM and HAA5?
For September 2025, Jacksonville reported TTHM at 44 ppb with a range of 37–44 ppb against an MCL of 80 ppb, and HAA5 at 7 ppb with a range of 6–7 ppb against an MCL of 60 ppb. The report lists no MCL violation for either result.
What did Jacksonville's latest lead and copper sampling show?
The report's most recent lead and copper summary is from July 2023 and includes 30 samples. Lead was reported at a 90th percentile below 3 ppb and copper below 0.05 ppm, with zero sampled sites above either action level.
Does the city water report tell me exactly what is at my faucet?
No. The annual report summarizes monitoring for Jacksonville's public water system and selected compliance sampling. Conditions in a particular service line, plumbing system or fixture can affect water at an individual home.
How can I learn more about water at my Jacksonville home?
East Coast Water Quality offers an in-home evaluation for common household water concerns. Specialized laboratory testing may be needed when you want to measure contaminants that are not part of a basic in-home evaluation.
Have Questions About Water at Your Jacksonville Home?
Schedule a free in-home water evaluation to discuss common household water concerns and determine whether additional treatment fits your goals.
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