Glen Parva Water Hardness & Quality Report (2026)

Severn Trent Water supplies Glen Parva, a suburban village in south-west Leicestershire on the outskirts of Leicester. Supply is drawn from Rutland Water — the major East Midlands reservoir fed by the Jurassic limestone Rivers Welland and Gwash — and Lincolnshire Limestone groundwater, treated at regional Leicester area works. At 216 mg/L (15.2°Clark), Glen Parva's water is hard — considerably harder than the south-east Leicester average — suggesting the south-west Leicester distribution zone receives a higher proportion of the hard Rutland Water and Lincolnshire Limestone groundwater component.

Rutland Water feeds on the Jurassic limestone catchments of Rutland and Northamptonshire, delivering water with high calcium bicarbonate content from the Great Oolite and Lincolnshire Limestone formations. The Lincolnshire Limestone (Jurassic Inferior Oolite) aquifer to the east also contributes harder groundwater. The south-west Leicester distribution zone, which includes Glen Parva, appears to draw more heavily on these harder limestone sources within Severn Trent's blended network, explaining why Glen Parva at 216 mg/L is significantly harder than Evington (152.5 mg/L) in a neighbouring Leicester suburb.

At 216 mg/L, limescale is a consistent household challenge in Glen Parva. Kettles benefit from descaling every four to six weeks to prevent element damage and calcium deposits in drinks. The combi-boiler should be fitted with a scale inhibitor and serviced annually. Washing-up liquid requires slightly more product than in softer areas to achieve satisfactory lather. 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 hard-water staining from becoming a persistent feature of bathroom and kitchen surfaces.