How hard is the water in Boca Raton, FL?

Tap water hardness
68mg/L
4.0gpg
Moderately hard

Reported by Boca Raton WTP · April 2025

FL typical
120 mg/L
EPA health violations since 2016
1
Softener for 3 people
24k grain
Data
Utility report

Boca Raton water measures 68 mg/L (4.0 gpg) of hardness, moderately hard by USGS standards. The number comes from Boca Raton WTP, dated April 2025.

Boca Raton on the hardness scale, with nearby cities
060120180240300360+FL typical 120Lighthouse Point: 40 mg/LLighthouse Point 40Lauderdale-by-the-Sea: 40 mg/LLauderdale-by-the-Sea 40Pompano Beach: 44 mg/LPompano Beach 44Coconut Creek: 47 mg/LCoconut Creek 47Deerfield Beach: 51 mg/LDeerfield Beach 51Coral Springs: 51 mg/LCoral Springs 51Parkland: 54 mg/LParkland 54Margate: 57 mg/LMargate 57Delray Beach: 62 mg/LDelray Beach 62Boynton Beach: 63 mg/LBoynton Beach 63Boca Raton 68mg/L as calcium carbonate060120180240300360+FL 120Lighthouse Point: 40 mg/LLighthouse. 40Pompano Beach: 44 mg/LPompano Be. 44Coconut Creek: 47 mg/LCoconut Cr. 47Deerfield Beach: 51 mg/LDeerfield. 51Parkland: 54 mg/LParkland 54Delray Beach: 62 mg/LDelray Bea. 6268 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Boca Raton sits 52 mg/L below the typical Florida figure of 120. None of the 10 nearest cities we track has harder water. The range nearby runs from 40 mg/L in Lighthouse Point to 63 in Boynton Beach.

What 68 mg/L means at home

You may see faint white spots on glasses and shower doors after the water dries.

Scale builds up slowly. A kettle or coffee maker needs descaling now and then, maybe every few months.

Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.

What to do about it

Optional. Plenty of households at this level live with it and descale the kettle now and then.

Water softener

Worth a look if spots on glass bother you, or if your tankless water heater manual asks for softer water.

Carbon filter

Improves taste and removes chlorine. It leaves calcium and magnesium in place.

Softener size for Boca Raton

3 people × 75 gallons a day × 4.0 gpg = 898 grains a day. A 24,000-grain unit regenerates about every 26 days.

Size it for your household

EPA record for Boca Raton's water system

Boca Raton WTP · PWSID FL4500130

1 health-based violation since 2016

Serves about 130,000 people from groundwater.

Health-based
1
Monitoring or reporting
9
Open now
0
20162017201820192020202120222023202420252026Total Coliform Rule'16'18'20'22'24'26Total Coliform Rule
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Total Coliform Rulebacteria12019Resolved

Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.

Questions

Is Boca Raton water hard?

Somewhat. It measures about 68 mg/L (4.0 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Boca Raton in grains per gallon?

About 4.0 gpg. One grain per gallon equals 17.1 mg/L, so 68 mg/L divided by 17.1 gives 4.0.

What size water softener do I need in Boca Raton?

For 3 people using 75 gallons each per day, 4.0 gpg works out to about 898 grains a day. A 24,000-grain softener covers that with a regeneration about every 26 days.

Has the Boca Raton water system had EPA violations?

EPA records show 1 health-based violation for Boca Raton WTP since 2016, involving Total Coliform Rule. There were also 9 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 214 cities in Florida

Hardness data: TapWaterData US Water Hardness (utility report, April 7, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.