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Fort Walton Beach Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

groundwater

pH Level

8.5

neutral = 7.0

Lead

0.008 mg/L

✓ Below action level

TDS

1023.3 mg/L

Est. Daily Cost

$0.40

energy & soap waste

Source: See methodology section below · Updated 2026

hard~120–179 mg/LHard · est.

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 Fort Walton Beach, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn Fort Walton BeachSoft Water CityEfficiency 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 Fort Walton Beach compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Fort Walton Beach, Florida≈ 120–179 mg/L0 ppt🟠 Hardgroundwater
Wright, Florida≈ 180+ mg/L10.7 ppt🔴 Very Hardgroundwater
Destin, Florida≈ 180+ mg/L0 ppt🔴 Very Hardgroundwater
Niceville, Florida≈ 120–179 mg/L0 ppt🟠 Hardgroundwater
Navarre, Florida≈ 180+ mg/L0 ppt🔴 Very Hardgroundwater

National Benchmark

How Fort Walton Beach compares to the USA average

BenchmarkHardnessAppliance Risk
Fort Walton Beach≈ 120–179 mg/L🟠 Moderate
USA National Avg151 mg/L🟠 Moderate
Scarsdale Top Rated0.02 mg/L🟢 None

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What Makes Fort Walton Beach's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 1023.3 mg/LpH: 8.5

The City of Fort Walton Beach operates the municipal utility for about 24,611 residents in Okaloosa County. Supply comes from eight deep wells in the Floridan Aquifer. Treatment is managed through city operations with aeration and chlorination, with offices at 107 Miracle Strip Parkway SW and 7 Hollywood Blvd. NW. The system processed about 967 million gallons in 2024, and residents can contact the Water Operations Supervisor at 850-833-9613 for questions, including lead testing results. This is a groundwater-focused system with stable year-round source conditions.

Geologically, the source is the regional Floridan Aquifer, which extends across much of Florida and into southern Georgia and Alabama. The aquifer is composed largely of Paleogene and Neogene carbonate bedrock, including Ocala Limestone and Avon Park Formation, deposited in ancient marine settings. As recharge water percolates through these soluble limestones, it dissolves calcium and magnesium minerals into solution. That carbonate dissolution process is the reason finished water is described as moderately mineralized and hard, with consistent chemistry tied to limestone aquifer flow paths.

In daily use, moderately hard water can cause scale buildup in heaters, dishwashers, coffee makers, and faucets, along with spotting on glassware and stiffer-feeling laundry. Practical care includes routine vinegar descaling and periodic appliance maintenance; a whole-house water softener or ion-exchange treatment is recommended for homes prioritizing appliance protection. Reported quality scoring cited 80/100 (B), with no EPA violations, while health-advocacy thresholds were noted for arsenic, chromium-6, radium, and trihalomethanes. Treatment remains based on aeration and chlorine disinfection, with no specific PFAS detail noted in the provided summaries.

Geology & Source: Floridan Aquifer karst limestone (Paleogene-Neogene), including Ocala Limestone and Avon Park Formation; carbonate dissolution during recharge adds calcium and magnesium, creating moderately mineralized hard groundwater

Other Florida Water Reports

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Frequently Asked Questions

Is Fort Walton Beach's water safe to drink?
Yes. Fort Walton Beach's water meets all federal safety standards. The hardness is ≈ 120–179 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Fort Walton Beach?
At ≈ 120–179 mg/L (Hard), Fort Walton Beach's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 20%.
How does Fort Walton Beach compare to the USA average?
The USA national average is 151 mg/L. Fort Walton Beach (≈ 120–179 mg/L) is 1 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Fort Walton Beach is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

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.

Estimated

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.

Estimated

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.

Measured

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.

Modelled

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.

Calculated

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.