Yorktown Water Quality Report
See where Yorktown-area public water comes from, how Newport News Waterworks treats it, what the latest 2025 testing shows, and how those system-wide results relate to water at your home.
What the Latest Yorktown Water Quality Report Covers
Yorktown is served by Newport News Waterworks, the regional water provider for York County, Newport News, Hampton, Poquoson and part of James City County. The 2025 Consumer Confidence Report summarizes testing performed by Waterworks in 2025 and includes both the Lower Peninsula surface-water system and the separate Lightfoot well system used by some York County customers.
Which section applies to you? Most Yorktown-area public-water customers are part of the Lower Peninsula surface-water system. Newport News Waterworks also operates a separate freshwater well system for customers in the Lightfoot area of York County. If you are unsure which system serves your address, confirm with Waterworks before comparing your home with a specific table in the report.
Where Yorktown Tap Water Comes From
For the Lower Peninsula system, Newport News Waterworks identifies the Diascund Creek Reservoir as the primary drinking-water source, supplemented by the Chickahominy River as conditions require. Raw water is transferred to Waterworks reservoirs, treated at its treatment plants, and distributed through the regional system that serves York County.
From Raw Water to Your Yorktown Tap
Newport News Waterworks uses a multi-step treatment process for its Lower Peninsula surface-water supply before finished water travels through the distribution system.
- CoagulationAluminum sulfate and polymer help small particles bind together so they can be removed more effectively.
- Clarification & OzoneParticles are settled out, then ozone is used for primary disinfection.
- Filtration & pH AdjustmentWater passes through filters, and lime is added to adjust pH.
- Corrosion Control & DistributionZinc orthophosphate is added for corrosion control, and chloramines provide a disinfectant residual as water travels through the pipe system.
Lightfoot is different: Waterworks says its Lightfoot system draws fresh groundwater from wells and uses chlorine for disinfection. The treatment and water-quality values for that system should not be mixed with the Lower Peninsula results below.
View the 2025 Yorktown-Area Water Quality Report
The embedded document is Newport News Waterworks' combined 2025 Annual Drinking Water Quality Report. It contains the Lower Peninsula report and expanded data, followed by the separate Lightfoot System report and expanded data for applicable York County customers.
Highlights From the Waterworks Data That Applies to Yorktown
The Waterworks report states that its drinking water meets or does better than applicable state and federal standards. The table below highlights selected Lower Peninsula results; use the complete report for every result, range, definition and footnote.
| Substance or Measure | 2025 Reported Result | Standard or Context | Report Status |
|---|---|---|---|
| Lead | 90th percentile <1.0 ppb | Action Level 15 ppb | No sample exceeded the Action Level |
| Copper | 90th percentile 0.097 ppm | Action Level 1.3 ppm | No sample exceeded the Action Level |
| Total Trihalomethanes (TTHM) | 21 ppb compliance value; 6–32 ppb individual range | MCL 80 ppb | Meets standard |
| Haloacetic Acids (HAA5) | 21 ppb compliance value; 5–32 ppb individual range | MCL 60 ppb | Meets standard |
| Total Chlorine (Chloramines) | 3.3 ppm system-wide annual running average; <0.02–5.4 ppm individual range | MRDL 4.0 ppm | Meets standard |
| Fluoride | Maximum 0.77 ppm; 0.73–0.77 ppm range | MCL 4.0 ppm | Meets standard |
| Hardness | Average 69 mg/L as CaCO₃ | 63–75 mg/L range | Waterworks describes this range as moderately hard |
| pH | Average 7.2 | 7.2–8.2 range | Secondary water-quality measure |
TTHM, HAA5 and chloramine compliance values use running averages explained in the Waterworks footnotes; individual ranges shown above are from 2025 samples. This summary is not a substitute for the official report.
PFAS Results in the 2025 Lower Peninsula Expanded Data
Waterworks' expanded 2025 data lists several PFAS compounds measured in finished water. These results apply to the Lower Peninsula system rather than the separate Lightfoot well system.
| PFAS Compound | Reporting Level | Maximum | 2025 Range |
|---|---|---|---|
| PFOA | 2.0 ppt | 3.3 ppt | 2.1–3.3 ppt |
| PFOS | 2.0 ppt | 4.9 ppt | 3.7–4.9 ppt |
| PFHxS | 2.0 ppt | 3.7 ppt | <2.0–3.7 ppt |
| PFBA | 2.0 ppt | 3.8 ppt | 2.6–3.8 ppt |
| PFHxA | 2.0 ppt | 3.5 ppt | <2.0–3.5 ppt |
| PFPeA | 2.0 ppt | 3.6 ppt | 2.5–3.6 ppt |
How to read these numbers: EPA's current federal PFAS rule establishes 4.0-ppt MCLs for PFOA and PFOS, but the rule's compliance schedule is separate from this 2025 monitoring table. Waterworks states that customers meet current federal and state standards. A system-wide PFAS result also does not determine the concentration at one home's faucet.
Three Yorktown Water Details Worth Understanding
Moderately Hard Water
The Lower Peninsula system averaged 69 mg/L hardness in 2025, with a 63–75 mg/L range. That is the range Waterworks describes as moderately hard, which can matter when homeowners are evaluating mineral spotting, scale or soap performance.
Chloramine Disinfection
Chloramines are added after treatment to maintain disinfection through the regional distribution system. Some households notice disinfectant taste or odor even when regulatory requirements are being met.
Plumbing Still Matters
Waterworks reports no individual lead or copper sample exceeded its Action Level in the 2025 sampling event, but lead and copper can be influenced by service-line and household plumbing materials. A regional report cannot tell you exactly what is present at one faucet.
What the Yorktown Water Quality Report Does—and Does Not—Tell You
A Consumer Confidence Report is an important system-wide resource, but it is not a complete water analysis for every individual Yorktown property.
What the Report Tells You
- Who supplies York County public water and which systems are covered.
- Where Lower Peninsula source water comes from and how it is treated.
- Which regulated substances were detected and how compliance was reported.
- Lower Peninsula hardness, pH, disinfectant and selected PFAS results.
- Separate information for customers served by the Lightfoot well system.
What It May Not Tell You About Your Home
- Whether your address is on the Lower Peninsula or Lightfoot system without confirming your service.
- Conditions created by an individual service line, plumbing system or fixtures.
- How water tastes, smells or behaves at one property.
- The exact PFAS concentration at one household faucet.
- Which treatment system best fits your household's specific goals.
Explore Local Water Treatment Options
Continue with the Yorktown page that best matches the water concern or treatment goal you want to explore.
Water Problems
Review local contaminant data, household concerns and treatment options.
Explore water problems →Reverse Osmosis
Learn about highly filtered drinking and cooking water at a dedicated faucet.
Explore reverse osmosis →Whole-Home Conditioners
Explore whole-home treatment for hardness, mineral scale, disinfectant taste and conditioning goals.
Explore water conditioners →PFAS Water Filters
Compare whole-home PFAS filtration and reverse-osmosis drinking-water treatment.
Explore PFAS filtration →Well Water Treatment
Explore treatment considerations for privately owned wells without mixing private-well conditions with municipal data.
Explore well-water treatment →Free Water Test
Schedule an in-home evaluation for hardness and common household water concerns.
Schedule a free water test →Yorktown Water Quality Report FAQs
Who supplies public drinking water to Yorktown, Virginia?
Newport News Waterworks serves as the regional public-water provider for York County, along with Newport News, Hampton, Poquoson and part of James City County.
Where does Yorktown drinking water come from?
For the Lower Peninsula system, the primary source is surface water from the Diascund Creek Reservoir, supplemented by the Chickahominy River as conditions require. Waterworks also operates a separate groundwater well system for customers in the Lightfoot area of York County.
How is Lower Peninsula water treated before it reaches Yorktown?
Waterworks uses screens, coagulation, clarification, ozone disinfection and filtration. Lime is added to adjust pH, zinc orthophosphate is used for corrosion control, and chloramines maintain a disinfectant residual in the distribution system. The utility also fluoridates the Lower Peninsula supply.
Is Yorktown water hard?
The 2025 Lower Peninsula data reports an average hardness of 69 mg/L as calcium carbonate, with a 63–75 mg/L range. Waterworks describes its treated water as moderately hard.
Does Yorktown public water use chlorine or chloramine?
The Lower Peninsula treatment process uses ozone for disinfection during treatment and chloramines as the secondary disinfectant carried through the distribution system. The separate Lightfoot well system uses chlorine, so the answer depends on which Waterworks system serves the property.
Were PFAS reported in the 2025 Lower Peninsula data?
Yes. The expanded 2025 tables list several PFAS compounds, including PFOA, PFOS and PFHxS. The reported maximum was 3.3 ppt for PFOA and 4.9 ppt for PFOS. These are system monitoring results and do not establish the PFAS level at an individual home's faucet.
Did the Waterworks report say the system met drinking-water standards?
Yes. Newport News Waterworks states that its drinking water meets or does better than applicable state and federal standards. The full report provides the regulatory values, monitoring results and footnotes used for those conclusions.
Does the water quality report test the water inside my house?
The report summarizes public-system monitoring and includes certain compliance sampling at customer locations, such as lead and copper sampling. It does not provide a complete water analysis for every home or diagnose conditions created by one property's plumbing or fixtures.
Have Questions About Water at Your Yorktown Home?
Schedule a free in-home water evaluation to discuss hardness, taste, odor and the treatment goals that matter at your property. Specialized laboratory testing may be needed for contaminants that cannot be measured through an in-home screening.
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