Nuneaton Water Hardness & Quality Report (2026)

Severn Trent Water plc supplies Nuneaton, Warwickshire, West Midlands, UK. Its water comes from a mixed supply, predominantly the Triassic Sandstone aquifer, with groundwater sources managed by Severn Trent and similar operations by South Staffs Water. Rivers like the River Anker and River Tame also contribute, feeding into treatment facilities such as Minworth and Stoke Bardolph. These plants process both groundwater and surface water, serving Warwickshire and neighbouring counties within the Trent catchment.

The geology beneath Nuneaton is dominated by the Permo-Triassic Sherwood Sandstone Group, a significant aquifer formation from the Triassic period. This porous sandstone allows rainwater to infiltrate and dissolve minerals like calcium and magnesium from underlying limestone-influenced layers and evaporitic deposits. This geological interaction results in water that is moderately mineralised to hard, a common characteristic in central England's groundwater supplies, unlike the softer water found in upland or western regions.

Homeowners in areas with moderately hard to hard water often notice limescale buildup on appliances like kettles and showerheads. This buildup can reduce the efficiency and lifespan of heating systems and other appliances, potentially increasing energy bills. You might also see deposits on taps and pipework over time. To manage this, regularly descale appliances with vinegar, consider installing limescale filters, and wipe fixtures dry after use. For persistent issues, a water softener is a good investment to protect your plumbing and improve how soap lathers form with soap and detergent.