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Cocoa Water Hardness & Quality Report (2026)

Water Hardness

115mg/L
Moderately Hard

6.7 grains per gallon

Source

reservoir

pH Level

7.3

neutral = 7.0

Lead

0.002 mg/L

βœ“ Below action level

TDS

249.6 mg/L

Est. Daily Cost

$0.31

energy & soap waste

Source: See methodology section below Β· Updated 2026

115mg/L as CaCO₃Moderately Hard

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 Cocoa, your appliances are currently losing 15% efficiency due to mineral buildup.

ApplianceIn CocoaSoft Water CityEfficiency Loss
Kettle
5.8 yrs
8.5 yrs-32%
Washing Machine
9.3 yrs
12 yrs-22%
Water Heater
11 yrs
15 yrs-27%

Regional Water Comparison

How Cocoa compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
β–Ά Cocoa, Florida115 mg/L0 ppt🟑 Moderately Hardreservoir
Rockledge, Floridaβ‰ˆ 120–179 mg/L8.6 ppt🟠 Hardgroundwater
Merritt Island, Floridaβ‰ˆ 120–179 mg/L5.1 ppt🟠 Hardgroundwater
Port Saint John, Floridaβ‰ˆ 180+ mg/L4.8 pptπŸ”΄ Very Hardgroundwater
Viera East, Floridaβ‰ˆ 180+ mg/L0 pptπŸ”΄ Very Hardgroundwater

National Benchmark

How Cocoa compares to the USA average

BenchmarkHardnessAppliance Risk
β–Ά Cocoa115 mg/L🟑 Low
USA National Avg151 mg/L🟠 Moderate
Scarsdale Top Rated0.02 mg/L🟒 None

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What Makes Cocoa's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 249.6 mg/LpH: 7.3

The City of Cocoa Utilities Department serves over 19,000 residents in central Brevard County, Florida, along the Space Coast. The primary sources are groundwater wells from the Intermediate and Floridan Aquifers, supplemented by aquifer storage and recovery wells and surface water from Taylor Creek Reservoir. Water is treated at municipal facilities using softening processes and chloramine disinfection to meet EPA standards. The system processes around 9.3 million gallons daily, distributed across Cocoa and surrounding areas; the utility is based at 351 Shearer Blvd., Cocoa, FL 32922 (contact: 321-433-8700).

The Taylor Creek Reservoir watershed drains local Brevard County terrain, feeding the blended supply with groundwater from the Intermediate and Floridan Aquifers, located hundreds of feet underground. These aquifers, part of the Southeastern Coastal Plain physiographic province, feature karst structures where acidic rainwater percolates through Oligocene-Miocene limestone, selectively dissolving minerals that impart a moderately mineralised character. Surface inputs from the reservoir introduce organic variability, but the dominant aquifer geology ensures consistent mineral content at the 115 mg/L moderate hardness level.

At moderately hard levels, scale buildup occurs gradually on fixtures, reducing efficiency in water heaters, dishwashers, and washing machines over 2–5 years; faucet aerators and showerheads may clog within a year, increasing energy bills by 15–20%. Maintenance involves monthly vinegar descaling, annual filter changes, and installing scale-inhibiting showerheads. A water softener is recommended for households with hard water concerns. Testing shows EPA compliance, though health advocacy groups note exceedances for arsenic, chromium-6, nitrate, radium, and total trihalomethanes. Treatment includes softening, chloramine disinfection, and filtration.

Geology & Source: Intermediate and Floridan Aquifers β€” Oligocene-Miocene karst limestone and dolomite; calcium and magnesium dissolve into groundwater producing moderate hardness; blended with surface water from Taylor Creek Reservoir

Other Florida Water Reports

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Frequently Asked Questions

Is Cocoa's water safe to drink?
Yes. Cocoa's water meets all federal safety standards. The hardness is 115 mg/L (Moderately Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Cocoa?
Cocoa's water is moderately hard at 115 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.
How does Cocoa compare to the USA average?
The USA national average is 151 mg/L. Cocoa (115 mg/L) is 36 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 Cocoa 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 β€” 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 β€” values may differ from utility-reported figures.

Estimated

TDS β€” 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 β€” Perfluoroalkyl and Polyfluoroalkyl Substances

EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) β€” 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 β€” 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.