Earl Shilton Water Hardness & Quality Report (2026)

Severn Trent Water supplies Earl Shilton, a market town in the Hinckley and Bosworth district of Leicestershire. The town's water is drawn from a blend of groundwater from the Permo-Triassic Sherwood Sandstone aquifer and upland reservoir supply from the Elan Valley aqueduct, distributed through the Leicestershire network from regional works. At 137.5 mg/L (9.6°Clark), Earl Shilton's water is moderately soft — reflecting the significant diluting influence of the soft Elan Valley supply on locally derived groundwater.

The Sherwood Sandstone (Triassic) underlies much of the East Midlands lowlands and contributes calcium-bearing groundwater from interstitial carbonate cements and minor carbonate interbeds. However, the Elan Valley aqueduct supply — originating from the near-distilled upland reservoirs of the Cambrian Mountains of mid-Wales — significantly moderates the overall hardness in the distribution network. The balance between these two source types determines the supply hardness across different zones, and Earl Shilton receives a blend that falls in the moderately soft category.

At 137.5 mg/L, limescale accumulates at a relatively gentle pace in Earl Shilton homes. Descaling the kettle every six to eight weeks is generally adequate to keep it performing well and free of calcium deposits. The combi-boiler benefits from a fitted scale inhibitor as standard good practice. Washing-up liquid lathers well at normal quantities, and taps and shower heads develop only light limescale deposits over several weeks. A monthly wipe with white vinegar or a mild descaling product is typically all that is needed to keep fittings clean. Domestic appliances will generally enjoy reasonable working lives in this moderately soft water supply zone.