Daphne Water Hardness & Quality Report (2026)

Daphne, Alabama, in Baldwin County on the Eastern Shore of Mobile Bay, receives its municipal water from Eastern Shore Utilities and the Daphne Utilities system, which draws from surface water impoundments and local wells in the Coastal Plain terrain of eastern Baldwin County. The eastern shore of Mobile Bay lies within the East Gulf Coastal Plain, a region of low, sandy terrain underlain by thick Tertiary and Quaternary coastal plain sediments. Water supply in this area draws from both shallow surface reservoirs and the Coastal Lowlands Aquifer System, tapping the soft, low-mineral water characteristic of Gulf Coast sandy formations.

The very soft 36.5 mg/L hardness reflects the Baldwin County coastal plain's distinctive sandy geology. The Citronelle Formation and underlying Miocene-age Hattiesburg Formation — the primary aquifer host rocks in eastern Baldwin County — are composed of siliceous sands, gravels, and clays deposited in deltaic and coastal environments during the Tertiary. These formations contain essentially no carbonate rock, yielding water with very low mineral content. Unlike northern Alabama communities in the Tennessee Valley carbonate terrain, the Baldwin County coastal plain geology produces naturally soft, mineral-poor water in both surface and groundwater sources.

At 36.5 mg/L, Daphne has very soft water — a pleasant and appliance-friendly supply for a rapidly growing Gulf Coast community. Residents enjoy excellent soap lathering, zero scale formation on appliances or fixtures, and spotless glassware from the dishwasher. Water heaters in Daphne homes can operate for years without carbonate-related efficiency losses. The main note for soft water chemistry is the possibility of trace metal leaching from older plumbing — residents in pre-1986 homes should run the tap before drinking first-draw water. The PFAS level of 3.2 ppt is relatively modest, reinforcing Daphne's favorable overall water quality profile.