Hickory Water Hardness & Quality Report (2026)

Hickory, North Carolina, in Catawba County — a major western Piedmont North Carolina city, the 'Furniture Capital of the World' (the Hickory furniture manufacturing industry historically produced one-quarter of all American furniture, and the region remains a major furniture manufacturing center), home of the Hickory Motor Speedway (one of the oldest short-track racing venues in NASCAR country), and a major western Carolina manufacturing, healthcare (Frye Regional Medical Center), and higher education (Lenoir-Rhyne University) community — draws its municipal water supply from Lake Hickory on the Catawba River via the City of Hickory Water Division. Water hardness in Hickory measures 161.5 mg/L — classified as hard.

Hickory's moderate-to-hard supply reflects the Catawba River western North Carolina Piedmont watershed's calcareous geology. The Catawba River at Lake Hickory drains: the Blue Ridge (Precambrian calcareous-poor gneiss and schist of the North Carolina Blue Ridge); and the Western Piedmont Province (Precambrian–Paleozoic calcareous-moderate Piedmont crystalline terrain — the Chauga Belt and Inner Piedmont Belt of the Carolinas, which include calcareous amphibolite and calcareous metasedimentary units). The calcareous-moderate Piedmont terrain in the Catawba watershed produces the moderate-to-hard 161.5 mg/L at Hickory.

At 161.5 mg/L, Hickory residents face moderate-to-hard scale challenges. Monthly descaling with citric acid solution is standard maintenance. City of Hickory Water Division consistently delivers water meeting all North Carolina NCDEQ and EPA Safe Drinking Water Act requirements.