Ashland Water Hardness & Quality Report (2026)

Ashland, Kentucky, in Boyd County — the Boyd County seat on the Ohio River at the Kentucky-West Virginia-Ohio tristate junction, a historic steel and chemical manufacturing city with AK Steel (Armco Steel), Ashland Inc. (petroleum and chemical company origins), and Armco Steel industrial heritage — receives its municipal water from the Ashland Water Treatment Plant, which draws from the Ohio River at the Ashland intake on the Big Sandy River-Ohio River confluence. The Ohio River at Ashland receives the Big Sandy River, which drains the heart of the Appalachian coal fields.

The moderately soft 61 mg/L hardness and low TDS of 93.7 mg/L are remarkably soft for an Ohio River supply — reflecting the upstream Appalachian Plateau character of the Big Sandy River drainage at the Ashland reach. The Ohio River at Ashland is strongly influenced by the Big Sandy River inflow from the Virginia-West Virginia-Kentucky Appalachian coalfields — terrain dominated by Pennsylvanian Pocahontas, New River, and Kanawha Group sandstone and shale sequences (the Breathitt Formation in Kentucky). These thick Pennsylvanian clastic sequences (coal-bearing sandstone, shale, and mudstone) have essentially no carbonate content, producing some of the softest river water in the eastern US. The Ohio River above Ashland, upstream from the calcareous Ohio-Indiana limestone tributaries, still reflects this Appalachian soft-water dominance.

At 61 mg/L, Ashland's water is moderately soft — excellent for household use. Scale forms slowly over many months, soap lathers well, and appliances operate efficiently. Semi-annual descaling is adequate. The PFAS level of 2.9 ppt is very good — a surprisingly low reading given Ashland's heavy industrial history, suggesting the Big Sandy-Ohio River flow at Ashland provides significant dilution of regional PFAS inputs despite the upstream WV chemical corridor (the Charleston, WV chemical valley).