North Miami Beach Water Hardness & Quality Report (2026)
Water Hardness
17.3 grains per gallon
Source
groundwater
pH Level
8.5
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
960.7 mg/L
Est. Daily Cost
$0.79
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
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 North Miami Beach, your appliances are currently losing 39% efficiency due to mineral buildup.
| Appliance | In North Miami Beach | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 3 yrs | 12 yrs | -75% |
| Water Heater | 5 yrs | 15 yrs | -67% |
Regional Water Comparison
How North Miami Beach compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ North Miami Beach, Florida | 296 mg/L | 11.9 ppt | 🔴 Very Hard | groundwater |
| Ojus, Florida | 94 mg/L | 5.5 ppt | 🟡 Moderately Hard | groundwater |
| Ives Estates, Florida | 177.5 mg/L | 8.2 ppt | 🟠 Hard | groundwater |
| Aventura, Florida | 120.5 mg/L | 6.4 ppt | 🟠 Hard | groundwater |
| Sunny Isles Beach, Florida | 77.5 mg/L | 5 ppt | 🟡 Moderately Hard | groundwater |
National Benchmark
How North Miami Beach compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ North Miami Beach | 296 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes North Miami Beach's Water Unique?
Local geology and source profile
North Miami Beach, Florida, in Miami-Dade County on the northeast Miami coast — a diverse northeast Miami-Dade city with a large Haitian-American community (one of the largest Haitian communities in the United States), a significant Russian-Jewish émigré population, and a vibrant multicultural Florida urban community adjacent to Aventura and the Biscayne Bay coastal corridor — draws its municipal water supply from the Biscayne Aquifer via the Miami-Dade Water and Sewer Department (WASD). Water hardness in North Miami Beach measures 296 mg/L — classified as very hard.
North Miami Beach's very hard supply — among the hardest in Miami-Dade County — reflects the northeast Miami-Dade Biscayne Aquifer's highly calcareous raw water and the distribution zone's mineral accumulation. The Biscayne Aquifer in the North Miami Beach zone is hosted in: the Holocene Miami Limestone (highly calcareous oolitic limestone — the surface rock of this area, extremely porous and carbonate-rich); the Pleistocene Anastasia Formation (calcareous coquina limestone and marl — a major carbonate unit in northeast Miami-Dade); and shallow Pleistocene calcareous terrace deposits. The raw Biscayne Aquifer here has very high hardness that is only partially treated by WASD before distribution, resulting in the very hard 296 mg/L at North Miami Beach.
At 296 mg/L, North Miami Beach residents face severe hard water challenges. Scale deposits form very rapidly on all fixtures and appliances — weekly descaling and appliance protection measures are strongly recommended. Miami-Dade WASD consistently delivers water meeting all Florida DEP and EPA Safe Drinking Water Act requirements.
Geology & Source: Groundwater from the Biscayne Aquifer via the Miami-Dade Water and Sewer Department (WASD) — the Miami-Dade County northeast Biscayne Bay corridor (Holocene–Pleistocene Miami Limestone and Anastasia Formation — highly calcareous oolitic limestone and coquina); very hard supply at 296 mg/L — reflecting the northeast Miami-Dade Biscayne Aquifer's highly calcareous raw supply before softening.