Fernandina Beach Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
groundwater
pH Level
8.2
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
579 mg/L
Est. Daily Cost
$0.40
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 Fernandina Beach, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Fernandina Beach | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Fernandina Beach compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Fernandina Beach, Florida | ≈ 120–179 mg/L | 0 ppt | 🟠 Hard | groundwater |
| St. Marys, Georgia | ≈ 180+ mg/L | 0 ppt | 🔴 Very Hard | groundwater |
| Yulee, Florida | ≈ 180+ mg/L | 11.2 ppt | 🔴 Very Hard | groundwater |
| Kingsland, Georgia | ≈ 120–179 mg/L | 0 ppt | 🟠 Hard | groundwater |
| Atlantic Beach, Florida | ≈ 180+ mg/L | 0 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Fernandina Beach compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Fernandina Beach | ≈ 120–179 mg/L | 🟠 Moderate |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Fernandina Beach's Water Unique?
Local geology and source profile
Fernandina Beach draws its water from the Floridan Aquifer System, a vast underground source providing supply for the city's approximately 16,300 residents in Nassau County. All of the municipal water comes from local groundwater reserves, processed at the Fernandina Beach WTP. This facility, located at 1180 South 5th Street, handles the treatment for the entire supply, which bypasses the need for any surface water or watershed management. For inquiries, residents can contact the utility directly or reach out to Utilities Chief Water Plant Operator Joshua Glisson. The city's 2024 Consumer Confidence Report details the water quality.
The water originates entirely from the Floridan Aquifer System, an extensive geological formation rich in Eocene-age limestone and dolomite. Formations like the Ocala Limestone are significant contributors to the water's composition. These carbonate rocks are susceptible to dissolution, a process that naturally introduces calcium and magnesium into the groundwater. This geological characteristic, common in the humid subtropical climate of northeast Florida, results in a supply that is notably hard, carrying elevated levels of dissolved minerals.
Such a hard water supply can leave noticeable spots on dishes and glassware after washing. You'll likely see scale buildup in various household fixtures and appliances, including water heaters, coffee pots, and dishwashers. Soap efficiency may also be reduced, requiring more detergent for laundry. Homeowners often notice deposits on faucets and showerheads, sometimes accompanied by corrosion. To combat scale, try soaking fixtures in white distilled vinegar overnight or using vinegar as a rinse agent in your dishwasher. Running vinegar through coffee makers, followed by thorough rinsing, can also help. Installing a water softener is a good option for reducing these aesthetic issues and extending the lifespan of appliances.
Geology & Source: Floridan Aquifer System; limestone and dolomite formations like Ocala Limestone yield hard water
Other Florida Water Reports
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Frequently Asked Questions
Is Fernandina Beach's water safe to drink?
Do I need a water softener in Fernandina Beach?
How does Fernandina Beach compare to the USA average?
Data Sources & Methodology
Water quality data for Fernandina Beach 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.