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South Florida and Miami

Free Water Testing in South Florida

South Florida drinks from a shallow limestone aquifer, and limestone is exactly what makes water hard.

Book My Free Water Test (954) 801-8176

Licensed & insured Written report you keep No purchase required

The Miami skyline behind palm trees
Free in-home testWritten report included.

By the USA Water Company team

Miami-Dade Water and Sewer Department draws from the Biscayne Aquifer, a shallow freshwater layer sitting on porous limestone just below the surface. Water moving through limestone dissolves calcium out of it, so hardness is built into the supply before treatment begins. WASD softens with lime at its Alexander Orr Jr. plant and runs more than 150,000 tests a year, but what arrives at your tap still depends on which plant serves you and on your own pipes.

  • Free in-home test, no obligation to purchase
  • Tested on site at your own tap, not a mail-in kit
  • Written report of your results to keep
  • Trained local technicians, not a call centre

South Florida and Miami Water Quality Summary

Water sourceThe Biscayne Aquifer, a shallow limestone aquifer under Miami-Dade
Primary concernsHardness and scale, disinfection byproducts, chlorine taste
Water hardnessNot published per address. Our free in-home test measures it at your tap.
UtilityMiami-Dade Water and Sewer Department

Your water in South Florida and Miami

Water utilityMiami-Dade Water and Sewer Department (WASD), plus separate city systems across Broward, Palm Beach and the Gulf Coast
SourceThe Biscayne Aquifer, a shallow freshwater lens sitting above denser saltwater
TreatmentWater from the Alexander Orr Jr. plant is lime softened to reduce hardness, then fluoridated, disinfected and filtered
HardnessNot published for individual addresses. Our free in-home test measures it at your tap.
Latest reportWASD Annual Water Quality Report
  • More than one utility covers this market. Miami-Dade is the largest, but Broward, Palm Beach, Lee and Collier counties run their own systems with their own sources. Your zip decides which set of numbers applies to you.
  • Lime softening is not the same as a softener. Treating hardness at the plant reduces it for everyone on the system. It does not take it to zero, and it cannot account for what your own plumbing adds on the way to the tap.
  • Wells behave differently. Homes on private wells across South Florida often see iron and sulfur that a city system would have removed. Those show up as orange staining and a rotten egg smell.

Checked against the utility’s own published reports, October 2026.

Where we test

FLORIDA Atlantic Ocean Gulf of Mexico ORLANDO SOUTH FLORIDA West Palm Beach Fort Myers Naples Fort Lauderdale Miami

Also serving Orlando.

Dots are towns our South Florida technicians cover. Map is approximate.

Our South Florida and Miami technicians cover Miami, Miami Beach, Hialeah, Coral Gables, Kendall, Homestead, Fort Lauderdale, Hollywood, Pembroke Pines, Miramar, Boca Raton, West Palm Beach, Fort Myers, Cape Coral and Naples.

Not sure if you are in range? Enter your zip when you book and it routes you to the team that covers your address.

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Your local South Florida and Miami team will confirm your free in-home water test.