Douglas Water Hardness & Quality Report (2026)

Douglas, Georgia, in Coffee County — a Coffee County city adjacent to Nicholls and Broxton on the Satilla River in south Georgia — receives its water from the City of Douglas Water Department, drawing from the Satilla River through the south Georgia distribution.

The hard 146 mg/L hardness and TDS of 363.5 mg/L reflect the Coffee County Satilla supply's hard Coastal Plain character — the Cretaceous Tuscaloosa Formation is predominantly insoluble, while the Tertiary Barnwell Formation calcareous marine sediments and Eocene Ocala Limestone influence contribute dissolved minerals to the south Georgia surface water supply (compare Nicholls GA: 143/356 in Coffee County comparable; Pearson GA: 148/370 in Atkinson County comparable; Douglas consistent hard from the same Coffee County Satilla River Cretaceous-Tertiary supply). The Satilla watershed at Coffee County — Cretaceous Tuscaloosa Formation (insoluble — dilutant), Tertiary Barnwell Formation (slightly calcareous — primary hardness contributor), and Holocene Coastal Plain alluvium (calcareous — TDS contributor).

At 146 mg/L with TDS 364, Douglas' water is hard — scale builds in appliances and fixtures over months. Quarterly descaling is appropriate. The PFAS level of 8.5 ppt is elevated — a certified drinking water filter is recommended — the Coffee County south Georgia agricultural and military (RAFB-Douglas legacy) sources contribute to Douglas' elevated PFAS readings. Review the City of Douglas' annual water quality report.