Lake Magdalene Water Hardness & Quality Report (2026)

Lake Magdalene, Florida, in Hillsborough County — a major north Tampa suburban community (Lake Magdalene is a significant Hillsborough County unincorporated community — a north Tampa suburb in the rapidly growing north Hillsborough County residential corridor adjacent to Carrollwood and Lutz; Lake Magdalene is one of the primary affluent residential areas in north Tampa, known for its numerous natural lakes (Lake Magdalene itself and several surrounding lakes are significant residential and recreational features of the area), with upscale residential developments and proximity to the University of South Florida and the New Tampa corridor), a diverse Hillsborough County community with a primarily professional, medical, and middle-class suburban population, adjacent to Carrollwood Village and Greater Northdale in the north Hillsborough County corridor, home of several significant Hillsborough County residential master-planned communities, and one of the most desirable north Tampa suburban areas — draws its municipal water supply via the Hillsborough County Water Division. Water hardness in Lake Magdalene measures 320.5 mg/L — classified as very hard.

Lake Magdalene's very hard supply reflects the north Tampa Hillsborough County Floridan Aquifer's highly calcareous limestone karst character. The Floridan Aquifer at Lake Magdalene–north Hillsborough County draws from the Eocene Avon Park Formation (highly calcareous marine carbonate). Very limited softening produces the very hard 320.5 mg/L.

At 320.5 mg/L, Lake Magdalene residents face severe hard water challenges. Water softeners and regular appliance descaling are essential. Hillsborough County Water Division consistently delivers water meeting all Florida DEP and EPA Safe Drinking Water Act requirements.