Lauderhill Water Hardness & Quality Report (2026)

Lauderhill, Florida, in central Broward County northwest of Fort Lauderdale, draws its municipal water supply from the Biscayne Aquifer (Broward County Surficial Aquifer) via the City of Lauderhill Utilities Division, which operates a reverse osmosis (RO) water treatment facility — one of the growing number of Broward County municipalities treating Biscayne Aquifer water through membrane filtration to reduce hardness and emerging contaminants. Water hardness in Lauderhill measures 92 mg/L — classified as moderately soft, dramatically below neighboring Deerfield Beach (270 mg/L) and Coral Springs (148 mg/L) on the same untreated Biscayne Aquifer.

Lauderhill's very soft supply for Broward County reflects its RO membrane treatment investment. The raw Biscayne Aquifer groundwater beneath central Broward County is naturally very hard (250–350 mg/L range from the Pleistocene Miami Limestone dissolution). The RO treatment process removes the majority of dissolved calcium and magnesium from the membrane-processed fraction — a typical municipal RO plant removes 85–95% of total dissolved solids from the membrane stream. When the RO permeate is blended with a remaining fraction of conventionally treated (but softer-treated) supply, the finished hardness in Lauderhill drops to the 92 mg/L range — consistent with other Broward RO utilities (Boynton Beach: 87 mg/L).

With hardness at 92 mg/L, Lauderhill residents enjoy notably soft water for South Florida — minimal scale challenges compared to most Broward County cities. City of Lauderhill Utilities consistently delivers water meeting all Florida DEP and EPA Safe Drinking Water Act requirements.