Stuart Water Hardness & Quality Report (2026)

The City of Stuart Utility Department provides drinking water to residents in Stuart, Florida, within Martin County. The supply is drawn entirely from groundwater sources: the surficial aquifer via 23 production wells and the Floridan Aquifer via one well. No surface water or treatment plant names are detailed in available reports. The service area covers the city and surrounding areas in Martin County. Following Florida Senate Bill 700 signed May 15, 2025, the utility has permanently ceased adding fluoride to the water supply.

The groundwater originates from the surficial and Floridan aquifers in the St. Lucie River watershed region. The surficial aquifer features Quaternary sands and clays overlying the deeper Floridan Aquifer's Eocene-Oligocene limestones and dolomites. This limestone geology dissolves over time, releasing calcium and magnesium ions that create a moderately mineralised, hard supply prone to scaling and soap inefficiency. The mineral content reflects the carbonate-rich formations typical of Florida's coastal plain aquifers.

When it comes to your appliances, Stuart's water can cause moderate scaling in pipes, water heaters, and dishwashers, reducing efficiency and lifespan. You'll need to use more detergent for laundry, and your skin may feel drier. To mitigate these effects, try regular vinegar descaling, low-flow fixtures, and scale-inhibiting filters. A water softener is recommended for full protection against buildup. The Martin County DOH issued a health advisory March 30, 2026, for poor recreational water quality at Roosevelt Bridge and Stuart Sandbar, but this does not affect drinking water. The municipal supply meets legal standards per utility reports, though third-party health guidelines rate it poorly overall.