Fernandina Beach Water Hardness & Quality Report (2026)
Water Hardness
12 grains per gallon
Source
groundwater
pH Level
8.2
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
579 mg/L
Est. Daily Cost
$0.55
energy & soap waste
Source: USGS Water Quality Portal · 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 27% efficiency due to mineral buildup.
| Appliance | In Fernandina Beach | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 2.8 yrs | 8.5 yrs | -67% |
| Washing Machine | 6 yrs | 12 yrs | -50% |
| Water Heater | 7.4 yrs | 15 yrs | -51% |
Regional Water Comparison
How Fernandina Beach compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Fernandina Beach, Florida | 205 mg/L | 9 ppt | 🔴 Very Hard | groundwater |
| St. Marys, Georgia | 159 mg/L | 9.2 ppt | 🟠 Hard | reservoir |
| Kingsland, Georgia | 123.5 mg/L | 6.6 ppt | 🟠 Hard | reservoir |
| Atlantic Beach, Florida | 113 mg/L | 6.1 ppt | 🟡 Moderately Hard | groundwater |
| Jacksonville Beach, Florida | 190.5 mg/L | 8.6 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Fernandina Beach compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Fernandina Beach | 205 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Fernandina Beach's Water Unique?
Local geology and source profile
Fernandina Beach, Florida, in Nassau County — the Nassau County seat adjacent to Jacksonville and Yulee on Amelia Island in northeast Florida — receives its water from the City of Fernandina Beach Water, drawing from the Floridan Aquifer (Nassau County) through the northeast Florida distribution.
The hard 205 mg/L hardness and TDS of 579 mg/L reflect the northeast Florida Nassau County Floridan Aquifer supply's hard calcareous character — the Eocene Avon Park Formation and Oligocene Suwannee Limestone produce hard calcareous water throughout the northeast Florida Floridan communities (compare South Daytona FL: 241.5/723 harder on the Volusia County Floridan draw; Fernandina Beach moderately hard at the northeast Florida end of the Floridan supply). The Floridan Aquifer at Nassau County — Eocene Avon Park Formation (calcareous — primary hardness contributor), Oligocene Suwannee Limestone (highly calcareous — secondary contributor), and Quaternary coastal sand (insoluble — minor dilutant).
At 205 mg/L with TDS 579, Fernandina Beach's water is hard. A water softener is recommended to prevent scale buildup. A reverse osmosis system is advisable for drinking water. The PFAS level of 9.0 ppt warrants a certified drinking water filter — the Nassau County northeast Florida industrial and paper mill corridor contribute to Fernandina Beach's elevated readings.
Geology & Source: Fernandina Beach in Nassau County draws from the City of Fernandina Beach Water on the Floridan Aquifer (Nassau County, northeast Florida) — the Floridan Aquifer at Nassau County is developed in Eocene Avon Park Formation (calcareous) and Oligocene Suwannee Limestone (highly calcareous) — Florida Nassau County Floridan Aquifer Eocene-Oligocene calcareous supply produces hard water at 205 mg/L with TDS 579 mg/L.