Ely Water Hardness & Quality Report (2026)

Anglian Water Services Limited is the main water company supplying Ely, in East Cambridgeshire, East of England. Their supply originates from a mix of sources, including the River Great Ouse and the Cam and Ely Ouse catchment rivers. This surface water is supplemented by groundwater drawn from the Chalk aquifer. A significant portion of the supply is also managed through the Ely Ouse to Essex Water Transfer Scheme, which began in 1971 and moves River Great Ouse water to reservoirs like Abberton and Hanningfield in Essex. Water undergoes treatment at regional facilities before reaching homes and businesses across Cambridgeshire and neighboring counties.

The geology beneath Ely is dominated by the Cretaceous Chalk Group, a substantial aquifer known for its permeability. This bedrock is covered by more recent glacial deposits, sands, gravels, and peat, particularly in the low-lying fenlands. The chalk itself is a porous limestone, and its interaction with water leaches significant amounts of calcium and magnesium. This process, common in chalk regions, generally results in a hard water supply that is prone to mineral buildup.

Living with hard water in Ely can lead to limescale accumulation in appliances like kettles and boilers, potentially reducing their efficiency and lifespan. You'll notice it most in hot water systems, showerheads, and taps. To manage this, homeowners often resort to regular descaling, using products like vinegar, or installing scale filters. For many households, particularly those experiencing the very hard conditions typical of chalk areas, a water softener is a worthwhile investment. It helps prevent appliance damage and allows soap and detergents to lather more effectively. much more effectively, improving cleaning power and reducing the amount needed.