Orlando Water Hardness & Quality Report (2026)

Orange County Utilities provides water to Orlando and surrounding areas in Orange County, Florida, serving over 500,000 residents including Winter Park, Maitland, and much of unincorporated Orange County. The supply is sourced entirely from the Floridan Aquifer via a network of deep wells. Key facilities include the Wekiva Wellfield, Palm Lake Wellfield, and Wells 51 and 52, with water treated at plants such as the Lawrence W. Hager Water Treatment Plant and the Mark C. Crowley Water Reclamation Facility for advanced processing.

There is no traditional surface watershed; the supply relies on groundwater recharge from rainfall across the Central Florida highlands. The Floridan Aquifer, formed in Eocene limestone formations including the Ocala Limestone, dominates the regional geology. These carbonate rocks dissolve calcium and magnesium into the water over extended underground flow paths, creating a hard supply rich in dissolved solids. The karst nature of the aquifer — with solution channels and caverns — facilitates this mineralization from ancient marine deposits, producing consistently high mineral content typical of the region.

Hard water in Orlando causes significant scale buildup in pipes, water heaters, dishwashers, and washing machines. Water heaters suffer most, with sediment accumulation raising energy use by up to 20–30% and requiring more frequent flushing or replacement. Soap lathers poorly, leaving films on skin and dishes; laundry requires extra detergent. Vinegar descaling, drain screens, and annual heater inspections help maintain appliances. A whole-home water softener is highly recommended. Orlando's water meets EPA standards tested for over 150 contaminants; treatment involves aeration, filtration, chloramination, and corrosion control, though some trihalomethanes and haloacetic acids exceed health guidelines per third-party analysis while remaining below legal limits.