Kendall Water Hardness & Quality Report (2026)
Water Hardness
15.2 grains per gallon
Source
groundwater
pH Level
8.5
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
800.2 mg/L
Est. Daily Cost
$0.69
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 Kendall, your appliances are currently losing 35% efficiency due to mineral buildup.
| Appliance | In Kendall | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 4 yrs | 12 yrs | -67% |
| Water Heater | 5.2 yrs | 15 yrs | -65% |
Regional Water Comparison
How Kendall compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Kendall, Florida | 260 mg/L | 10.7 ppt | 🔴 Very Hard | groundwater |
| Pinecrest, Florida | 273.5 mg/L | 11.2 ppt | 🔴 Very Hard | groundwater |
| Glenvar Heights, Florida | 131.5 mg/L | 6.7 ppt | 🟠 Hard | groundwater |
| Sunset, Florida | 81.5 mg/L | 5.1 ppt | 🟡 Moderately Hard | groundwater |
| Palmetto Bay, Florida | 177.5 mg/L | 8.1 ppt | 🟠 Hard | groundwater |
National Benchmark
How Kendall compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Kendall | 260 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
Bring Badger-quality water to your Kendall home
Shop water softeners on Amazon.com →
What Makes Kendall's Water Unique?
Local geology and source profile
Kendall, Florida — a large unincorporated suburban community in west-central Miami-Dade County (one of the most populous unincorporated areas in the US) — draws its municipal water supply from the Biscayne Aquifer via the Miami-Dade Water and Sewer Department (MDWASD), pumping from the Miami-Dade County wellfield network accessing the Pleistocene Miami Limestone and Fort Thompson Formation of the Biscayne Aquifer. Kendall is the archetypal sprawling South Florida suburban landscape. Water hardness in Kendall measures 260 mg/L — classified as very hard.
Kendall's very hard supply reflects the Biscayne Aquifer's character in the west-central Miami-Dade area. The Miami Limestone (Pleistocene oolitic limestone — formed from oolite shoals in shallow marine conditions approximately 100,000 years ago) is extremely porous and reactive, dissolving rapidly to release calcium bicarbonate into the aquifer. The Fort Thompson Formation beneath the Miami Limestone provides additional carbonate dissolution zones. The Biscayne Aquifer in the Kendall area is one of the most productive aquifers in the world by permeability — but this same porosity enables rapid dissolution and very high dissolved calcium content. Miami-Dade's water treatment plants soften the raw aquifer supply somewhat, but finished hardness in the Kendall distribution zone remains very high.
At 260 mg/L, Kendall residents face significant hard water challenges. Scale deposits form rapidly on faucet aerators, showerheads, shower glass, and tile — monthly descaling with citric acid solution is essential maintenance. Dishwashers require rinse-aid plus periodic cleaning. MDWASD 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 (MDWASD) — the Pleistocene Miami Limestone and Fort Thompson Formation of the Miami-Dade County Biscayne Aquifer; very hard supply at 260 mg/L — typical of the west-central Miami-Dade Biscayne Aquifer zone.