Miami Beach, FL water hardness

Tap water hardness
35mg/L
2.1gpg
Soft

Reported by Miami Beach, City of · August 2025

FL typical
120 mg/L
EPA health violations since 2016
0
Data
Utility report

Miami Beach water measures 35 mg/L (2.1 gpg) of hardness, soft by USGS standards. The number comes from Miami Beach, City of, dated August 2025.

Miami Beach on the hardness scale, with nearby cities
060120180240300360+FL typical 120Miramar: 20 mg/LMiramar 20Country Club: 28 mg/LCountry Club 28Palm Springs North: 28 mg/LPalm Springs North 28Hollywood: 51 mg/LHollywood 51North Miami: 89 mg/LNorth Miami 89Surfside: 92 mg/LSurfside 92North Miami Beach: 212 mg/LNorth Miami Beach 212Hialeah: 212 mg/LHialeah 212Miami Gardens: 212 mg/LMiami Gardens 212Miami: 248 mg/LMiami 248Miami Beach 35mg/L as calcium carbonate060120180240300360+FL 120North Miami: 89 mg/LNorth Miami 89Surfside: 92 mg/LSurfside 92North Miami Beach: 212 mg/LNorth Miam. 212Hialeah: 212 mg/LHialeah 212Miami Gardens: 212 mg/LMiami Gard. 212Miami: 248 mg/LMiami 24835 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Miami Beach sits 85 mg/L below the typical Florida figure of 120. Of the 10 nearest cities we track, 3 have softer water and 7 have harder. The range nearby runs from 20 mg/L in Miramar to 248 in Miami.

What 35 mg/L means at home

Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.

Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.

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

Nothing, as far as hardness goes. At 35 mg/L a softener would have almost nothing to remove.

Carbon filter

If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.

EPA record for Miami Beach's water system

Miami Beach, City of · PWSID FL4130901

No health-based violations since 2016

Serves about 100,000 people from groundwater.

Health-based
0
Monitoring or reporting
16
Open now
1

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 Miami Beach water hard?

No. It measures about 35 mg/L (2.1 grains per gallon), which the USGS classes as soft.

What is the water hardness in Miami Beach in grains per gallon?

About 2.1 gpg. One grain per gallon equals 17.1 mg/L, so 35 mg/L divided by 17.1 gives 2.1.

Has the Miami Beach water system had EPA violations?

EPA records show no health-based violations for Miami Beach, City of since 2016. There were also 16 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, August 18, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.