Stourport-on-Severn Water Hardness & Quality Report (2026)

Severn Trent Water is the primary utility serving Stourport-on-Severn in the West Midlands, UK. The water supply is mixed, drawing from the River Severn, its tributaries like the Stour, and groundwater extracted from Permo-Triassic aquifers. Water treatment takes place at facilities such as the Kidderminster or Stourport plants before distribution across Worcestershire and nearby regions. The Severn River Basin provides the source, with water coming into contact with Triassic sandstones and Carboniferous limestones. The Sherwood Sandstone aquifer is significant for groundwater extraction, while surface water from the Severn picks up minerals from Magnesian Limestone.

The region's geology is characterized by Permo-Triassic sandstones, notably the Sherwood Sandstone aquifer, and Carboniferous coal measures and limestones. These sedimentary rock layers are rich in minerals containing calcium and magnesium. As rainwater percolates through these strata or as river water flows over them, these minerals dissolve into the water. This geological makeup, particularly the presence of limestone and sandstone, results in water that is moderately hard, unlike the softer supplies found in areas dominated by granite.

Limescale buildup is a common consequence of this moderately hard water, noticeably affecting appliances like kettles, boilers, showerheads, and dishwashers. You might see white deposits and a decrease in efficiency. To combat this, homeowners can regularly descale appliances using vinegar solutions, install scale filters on taps, and adjust dishwasher settings to accommodate moderate hardness. For preventing long-term damage to heating systems and other appliances, installing a water softener is often recommended. Severn Trent consistently meets UK drinking water regulations, with treated water typically maintaining a pH between 7 and 8. Corrosion control measures ensure lead and copper levels remain below Drinking Water Inspectorate standards. Recent reports up to March 2026 show no specific concerns regarding PFAS, pesticides, or other regulated parameters.