Crestview Water Hardness & Quality Report (2026)

Crestview, Florida, in Okaloosa County in the Florida Panhandle inland from Fort Walton Beach — a fast-growing Panhandle city adjacent to Eglin Air Force Base (the largest Air Force installation in the world by area) — receives its municipal water from the City of Crestview Utilities Division, drawing from the Upper Floridan Aquifer through production wells in the Okaloosa County Panhandle. Like virtually all Florida Panhandle communities, Crestview depends entirely on the Floridan Aquifer system for its municipal water supply.

The hard 193.5 mg/L hardness and elevated TDS of 536.2 mg/L reflect the Upper Floridan Aquifer's carbonate character in the northwest Florida Panhandle. The Floridan in Okaloosa County accesses the Oligocene Suwannee Limestone — a more recently formed carbonate layer compared to the Eocene Avon Park dolomite that dominates central Florida — along with the deeper Eocene Avon Park Formation and Ocala Group carbonates. The western Panhandle Floridan is noted for higher salinity and mineral concentrations than the central Florida zones, reflecting the aquifer's proximity to Gulf of Mexico brackish influence and the relatively shallow aquifer geometry of the Panhandle region.

At 193.5 mg/L, Crestview households deal with hard water as a consistent daily reality in this Panhandle community. Scale builds in kettles and coffee machines within weeks, dishwashers require rinse aid treatment, and shower fixtures develop calcium deposits. Descaling appliances every six to eight weeks is the practical schedule. The PFAS level of 8.6 ppt is a significant concern — Crestview's adjacency to Eglin AFB, one of the most PFAS-contaminated military installations in the United States, directly impacts the Okaloosa County groundwater supply. The Eglin aquifer contamination plume from decades of firefighting foam use represents one of Florida's most documented PFAS groundwater challenges. A certified reverse osmosis filter for drinking water is essential.