Bromsgrove Water Hardness & Quality Report (2026)

Bromsgrove, in north Worcestershire at the southern edge of the Birmingham conurbation in the Lickey Hills foothills, is supplied by Severn Trent Water from the Elan Valley Aqueduct and the River Severn blend. The Elan Valley Aqueduct delivers very soft upland Welsh water from the Elan Valley reservoirs — Caban Coch, Garreg-ddu, and Craig Goch — impounding rivers on the ancient Silurian and Ordovician slate and shale country of mid-Wales. The Severn, flowing from the Cambrian Mountains through the Welsh Marches, adds moderate dissolved calcium from Silurian limestone country. Severn Trent blends these through the north Worcestershire supply network, and Bromsgrove's position at the fringe of the Elan Valley supply arc receives a predominantly soft supply with moderate Severn dilution, producing moderately soft water.

Bromsgrove's hardness of 107 mg/L (7.5°Clark) reflects the predominantly soft Elan Valley Welsh upland supply blended with moderate River Severn catchment chemistry in Severn Trent's north Worcestershire supply zone. The Drinking Water Inspectorate (DWI) classifies this supply as moderately soft.

Limescale is a moderate concern in Bromsgrove. At 107 mg/L, limescale forms gradually — kettles need descaling every one to two months. Combi-boiler heat exchangers accumulate modest deposits; annual servicing is sensible. Showerheads and taps develop light deposits. Washing-up liquid lathers reasonably well. A monthly Calgon tablet in the washing machine and a regular kettle descale is adequate limescale management for most Bromsgrove households on the Severn Trent Elan Valley supply.