Ironton Water Hardness & Quality Report (2026)

Ironton, Ohio, in Lawrence County — the Lawrence County seat adjacent to Ashland and Huntington on the Ohio River at the Ohio-Kentucky-West Virginia tri-state border — receives its water from the City of Ironton Water Department, drawing from the Ohio River through the south Ohio distribution.

The moderately hard 121 mg/L hardness and TDS of 200.7 mg/L reflect the Lawrence County Ohio River supply's moderate calcareous character — the Mississippian Maxville Limestone and Devonian Columbus Limestone are calcareous formations in the south Ohio Appalachian Plateau, and the Ohio River acquires dissolved mineral content from its diverse limestone and shale drainage across the Appalachian coal region (compare Ashland KY: 118/193 in Boyd County comparable; Huntington WV: 123/207 in Cabell County comparable; Ironton consistent moderate from the same Lawrence County Ohio River Mississippian calcareous supply). The Ohio River at Lawrence County — Mississippian Maxville Limestone (calcareous — primary hardness contributor), Devonian Columbus Limestone (calcareous — secondary contributor), and Quaternary Ohio River alluvium (slightly calcareous — minor TDS).

At 121 mg/L with TDS 201, Ironton's water is moderately hard — mild scale buildup. Semi-annual descaling is appropriate. The PFAS level of 4.6 ppt is moderate — a certified drinking water filter provides added protection. Review the City of Ironton's annual water quality report.