Clayton Water Hardness & Quality Report (2026)
Water Hardness
~0–59 mg/L
Softestimated · not lab-verified
Source
reservoir
pH Level
7.4
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
117.1 mg/L
Est. Daily Cost
$0.08
energy & soap waste
Source: See methodology section below · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Clayton, your appliances are currently losing 4% efficiency due to mineral buildup.
| Appliance | In Clayton | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.2 yrs | 8.5 yrs | -4% |
| Washing Machine | 11.5 yrs | 12 yrs | -4% |
| Water Heater | 14.4 yrs | 15 yrs | -4% |
Regional Water Comparison
How Clayton compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Clayton, North Carolina | ≈ 0–59 mg/L | 51.7 ppt | 🟢 Soft | reservoir |
| Knightdale, North Carolina | 102.5 mg/L | 5.4 ppt | 🟡 Moderately Hard | groundwater |
| Garner, North Carolina | 140 mg/L | 7.3 ppt | 🟠 Hard | groundwater |
| Smithfield, North Carolina | ≈ 0–60 mg/L | 371.1 ppt | 🟢 Soft | reservoir |
| Raleigh, North Carolina | 25 mg/L | 10 ppt | 🟢 Soft | reservoir |
National Benchmark
How Clayton compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Clayton | ≈ 0–59 mg/L | 🟢 None |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Clayton's Water Unique?
Local geology and source profile
The Town of Clayton Utilities Department provides drinking water to residents of Clayton and surrounding areas of Johnston County, North Carolina, serving approximately 25,000 residents in the service area. The supply is sourced from local groundwater wells tapping coastal plain aquifers within the Neuse River Basin. Treatment occurs at the town's water treatment facilities, including disinfection with chlorine, filtration, and monitoring, ensuring compliance with EPA standards. Customers may contact the utility at 919-553-5002 for the latest Consumer Confidence Report.
Groundwater is recharged via precipitation over the Neuse River Basin, percolating through the unconsolidated sands and clays of the Cretaceous Black Creek and Peedee Aquifers. These formations contain minimal limestone or dolomite outcrops, significantly limiting dissolution of hardness minerals such as calcium and magnesium carbonates. The absence of significant carbonate rock layers produces a characteristically soft water supply with low dissolved solids and minimal geological scaling potential, distinct from karst-heavy or limestone-dominated regions.
With a soft water profile, scaling on fixtures and appliances is negligible, reducing maintenance needs for water heaters, dishwashers, and laundry machines. Soap and detergent efficiency is high. No water softener is required; focus instead on routine filter changes if aesthetic concerns arise. Water quality reports confirm compliance with EPA standards, including lead and copper rule adherence. General testing shows low levels of disinfection byproducts such as TTHMs and haloacetic acids, though advocacy groups flag some exceedances of non-regulatory health guidelines despite legal compliance.
Geology & Source: North Carolina coastal plain — Cretaceous Black Creek and Peedee Formations of unconsolidated sands, clays, and gravels; minimal carbonate rock limits calcium and magnesium dissolution — soft supply
Other North Carolina Water Reports
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Frequently Asked Questions
Is Clayton's water safe to drink?
Do I need a water softener in Clayton?
How does Clayton compare to the USA average?
Data Sources & Methodology
Water quality data for Clayton is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
Water Hardness
Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.
pH
Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.
TDS — Total Dissolved Solids
Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.
PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances
EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.
Lead
Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.
Appliance Lifespan
Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.