Deerfield Beach Water Hardness & Quality Report (2026)

The City of Deerfield Beach Water Department serves approximately 53,050 residents in Deerfield Beach, Florida, within Broward County. Water is sourced from groundwater in the Biscayne Aquifer and the Floridan Aquifer. Treatment occurs at three facilities: the Lime Softening Plant (7.5 MGD capacity) treats Biscayne aquifer water with quicklime to reduce hardness; a Nanofiltration Plant (3 MGD) processes Floridan water under high pressure; and the Reverse Osmosis Plant (3 MGD, completed 2012) uses semipermeable membranes on Floridan aquifer water, at 150 NE 2nd Avenue, Deerfield Beach, FL 33441.

The Biscayne Aquifer is a shallow South Florida formation of highly permeable limestone and sandstone, extending to approximately 240 feet depth, serving Miami-Dade, Broward, and Palm Beach counties. The deeper Floridan Aquifer extends to about 3,000 feet and contains much higher mineral content due to its geological composition. Florida's pervasive limestone geology dissolves substantial calcium and magnesium into the groundwater, resulting in a hard supply that requires lime softening, nanofiltration, and reverse osmosis to manage mineral levels before distribution.

At moderately hard levels, scale buildup can occur in appliances including water heaters, dishwashers, and coffee makers, reducing efficiency and lifespan. Pipes and fixtures may accumulate mineral deposits over time. Regular maintenance — descaling appliances, installing drain screens, flushing water heaters annually — mitigates these effects. A water softener is often recommended for households experiencing persistent hardness to prevent scale, extend appliance life, and improve soap efficiency. The 2024 Water Quality Report confirms compliance with federal and state standards; monitored concerns include Benzene, Naphthalene, Perchlorate, and Nitrates/Nitrites, all within regulated levels.