Birstall Water Hardness & Quality Report (2026)

Severn Trent Water supplies Birstall, a north Leicester suburb adjacent to Watermead Country Park in the Soar Valley — a residential community in the City of Leicester authority north of the city centre, close to the River Soar and the Great Central Railway heritage line at Rothley — from Derwent Valley Reservoirs in the Peak District blended with Permo-Triassic Sandstone (Sherwood Sandstone) groundwater in the north Leicester distribution zone, treated at Loughborough Water Treatment Works. At 182.5 mg/L (12.8°Clark), Birstall's water is hard — reflecting a moderate Triassic Sandstone groundwater component in the Severn Trent north Leicestershire supply blend.

Birstall sits in the Soar Valley where the Permo-Triassic Sandstone (Sherwood Sandstone Group) of the east Midlands provides a productive but moderately mineralised aquifer supplement to the soft Derwent Valley reservoir baseline. Severn Trent Water blends soft Derwent Valley Peak District upland reservoir supply with Triassic groundwater in the north Leicestershire distribution zone, yielding 182.5 mg/L with TDS 462.7 mg/L — hard water characteristic of the north Leicester and Charnwood corridor supply zones from Birstall through Mountsorrel to Loughborough.

At 182.5 mg/L, limescale is a consistent household concern in Birstall. Kettles benefit from descaling every three to four weeks. The combi-boiler should be fitted with a scale inhibitor and serviced annually. Washing-up liquid requires more product per wash than in softer areas. Taps and shower heads develop visible white limescale deposits within one to two weeks; a fortnightly wipe with white vinegar or a proprietary descaling product keeps fittings clean and prevents chalk staining from building up permanently in this hard north Leicestershire Triassic blend supply zone.