How does Fruit Cove's water compare to the national average?

The USA national average is 151 mg/L. Fruit Cove (≈ 180+ mg/L) is 189 mg/L harder than average.

Fruit Cove Water Hardness & Quality Report (2026)

Water Hardness

very hard

180+ mg/L

Very Hard

estimated · not lab-verified

Source

groundwater

pH Level

7.4

neutral = 7.0

Lead

0.001 mg/L

✓ Below action level

TDS

175.9 mg/L

Est. Daily Cost

$0.91

energy & soap waste

Source: See methodology section below · Updated 2026

very hard180+ mg/LVery Hard · 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 Fruit Cove, your appliances are currently losing 45% efficiency due to mineral buildup.

Appliance	In Fruit Cove	Soft Water City	Efficiency Loss
Kettle	4.7 yrs	8.5 yrs	-45%
Washing Machine	6.6 yrs	12 yrs	-45%
Water Heater	8.3 yrs	15 yrs	-45%

Regional Water Comparison

How Fruit Cove compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Fruit Cove, Florida	≈ 180+ mg/L	5 ppt	🔴 Very Hard	groundwater
Fleming Island, Florida	≈ 120–179 mg/L	10.9 ppt	🟠 Hard	groundwater
St. Johns, Florida	≈ 180+ mg/L	6.8 ppt	🔴 Very Hard	groundwater
Bellair-Meadowbrook Terrace, Florida	≈ 120–179 mg/L	11.7 ppt	🟠 Hard	groundwater
Lakeside, Florida	≈ 120–179 mg/L	4.9 ppt	🟠 Hard	groundwater

National Benchmark

How Fruit Cove compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Fruit Cove	≈ 180+ mg/L	🔴 High
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Fruit Cove's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 175.9 mg/LpH: 7.4

St. Johns County Utilities operates the Fruit Cove Oaks system, serving the Fruit Cove community in St. Johns County, Florida. The primary water source is groundwater drawn from the Floridan aquifer. Specific treatment facilities include the Fruit Cove Oaks water treatment plant, which processes water for distribution to residential and commercial customers in the area. The utility provides annual Consumer Confidence Reports detailing compliance and quality metrics.

The supply relies exclusively on the Floridan aquifer, a vast karst limestone aquifer system underlying the region's karst topography without a defined surface watershed. Key formations include the Ocala Limestone (Eocene) and the Avon Park Formation, with overlying Hawthorn Group sediments (Miocene) influencing recharge and mineral dissolution. The carbonate-rich limestone naturally imparts a very hard character to the groundwater due to the high solubility of calcium and magnesium-bearing minerals, shaping the water's mineralized profile typical of central and northern Florida aquifers.

Very hard water promotes significant scale buildup in pipes, water heaters, dishwashers, and coffee makers, reducing efficiency and lifespan. Faucets and fixtures develop stubborn deposits, leading to spots on glassware and film on surfaces. Regular maintenance with vinegar soaks or descaling agents helps; a water softener is strongly recommended for households to prevent damage and improve appliance performance. St. Johns County Utilities' 2024 Fruit Cove Oaks CCR confirms compliance with EPA standards for primary contaminants, with pH typically neutral to slightly alkaline. No specific lead or copper exceedances are noted; PFAS monitoring is ongoing per state requirements with no violations reported.

Geology & Source: Floridan aquifer — Eocene-Oligocene karst limestone (Ocala Limestone, Avon Park Formation) overlain by Miocene Hawthorn Group; high carbonate dissolution yields very hard water in northeast Florida

Other Florida Water Reports

Fleming Island

≈ 120–179 mg/L

🟠 Hard

St. Johns

≈ 180+ mg/L

🔴 Very Hard

Bellair-Meadowbrook Terrace

≈ 120–179 mg/L

🟠 Hard

Lakeside

≈ 120–179 mg/L

🟠 Hard

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All reports are reviewed by our team. Thank you for supporting data quality!

Frequently Asked Questions

Is Fruit Cove's water safe to drink?

Yes. Fruit Cove's water meets all federal safety standards. The hardness is ≈ 180+ mg/L (Very Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Fruit Cove?

At ≈ 180+ mg/L (Very Hard), Fruit Cove'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 45%.

How does Fruit Cove compare to the USA average?

The USA national average is 151 mg/L. Fruit Cove (≈ 180+ mg/L) is 189 mg/L above the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Fruit Cove 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

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.