Aldridge Water Hardness & Quality Report (2026)

Aldridge, the north Walsall town on the Staffordshire border at the northern edge of the Black Country, is supplied by Severn Trent Water from a supply that is predominantly dominated by soft upland water imported via the Elan Valley Aqueduct from the Cambrian Mountains of mid-Wales. The Elan Valley supply is treated at Frankley Water Treatment Works west of Birmingham and distributed north through the Walsall distribution network. In the north Black Country zone encompassing Aldridge and the Walsall southern fringes, the Elan Valley soft-water proportion is high, with a relatively limited contribution from Permo-Triassic sandstone groundwater in the north Staffordshire basin. The modest TDS of 288.4 mg/L confirms the dominance of soft surface water in the Aldridge supply blend, with only limited mineralisation from the distribution network or local aquifer contributions.

The Elan Valley Reservoirs — Caban Coch, Garreg Ddu, Pen-y-Garreg and Craig Goch — impound rainfall from the soft Cambrian greywacke and mudstone catchments of mid-Wales, producing inherently low-calcium surface water. This soft supply traverses the 73-mile aqueduct to Frankley, where it is treated before distribution. In Aldridge's north Walsall supply zone, the blend includes more soft Elan Valley water and less hard groundwater than zones further east or north in Staffordshire, resulting in a moderately soft 123.5 mg/L — somewhat harder than the softest west Black Country zones (108.5 mg/L at Brierley Hill) but considerably softer than the hard Staffordshire groundwater-dominated towns to the north.

At 123.5 mg/L Aldridge's water is moderately soft and limescale management is straightforward. Kettles accumulate light scale and need descaling every six to eight weeks with a standard citric acid kettle descaler. Shower screens develop only minor spotting and respond well to occasional cleaning with diluted white vinegar. Washing-up liquid lathers freely. Combi-boilers and white goods face low to moderate scaling risk. Aldridge's commuter-belt character on the Walsall–Staffordshire edge means its residents enjoy one of the softer domestic water supplies in the wider West Midlands, courtesy of the Welsh upland aqueduct.