Leek Water Hardness & Quality Report (2026)

Severn Trent Water provides water to Leek, a town in Staffordshire, from a combination of sources. Groundwater is drawn from the Triassic sandstone formations, notably the Sherwood Sandstone Group, which serves as the primary aquifer. Surface water comes from reservoirs in the Churnet Valley and Rudyard Lake area, as well as rivers within the Upper Trent watershed. Water treatment is carried out at facilities like the Leek Water Treatment Works, ensuring a safe supply for residents across the Staffordshire Moorlands and the fringes of the Peak District.

The geology beneath Leek plays a significant role in its water quality. The town's supply is influenced by Permo-Triassic sandstones and Carboniferous limestones. As water flows through or percolates within these rock types, it naturally dissolves minerals, particularly calcium and magnesium. This interaction with the limestone and sandstone bedrock is the reason for the characteristically hard water found in this region of central England.

Homeowners in Leek may notice the effects of this hard water, such as limescale buildup in appliances like kettles and showerheads. This can reduce the efficiency and lifespan of heating systems and other water-using devices, including washing machines and dishwashers, potentially increasing energy costs. Regular descaling with household solutions can help manage these deposits, and for persistent issues, installing a water softener is often recommended to protect plumbing and improve the lathering of soaps and detergents.