Barrow in Furness Water Hardness & Quality Report (2026)

United Utilities Water plc supplies Barrow-in-Furness and the surrounding Cumbria area in North West England. The main water sources are upland surface reservoirs, including those in the Duddon Valley, Wastwater catchment, and Thirlmere. Key treatment facilities are the Borrowdale and Chapel Stile plants. Water is drawn from these high moorland reservoirs, undergoing coagulation, filtration, and disinfection before it reaches the roughly 7 million customers across the North West region, including the Furness peninsula.

The water originates from watersheds within the Lake District National Park, featuring granite and volcanic rock formations from the Ordovician Borrowdale Volcanic series and Silurian sedimentary rocks. This geology is impermeable and acidic, which limits the dissolution of minerals. Consequently, the water is very soft, containing low levels of naturally occurring calcium and magnesium. The peaty moorland soils also add organic content but contribute very few hardness ions, resulting in a supply with characteristically low mineralisation when contrasted with lowland areas rich in limestone.

While very soft water means minimal scale buildup, it can be more corrosive to metal pipes and fittings. This may lead to increased maintenance requirements for boilers, kettles, and heating systems. You'll find soap lathers easily here, creating no scum, which is beneficial for laundry and bathing. Annual checks on appliances are a good idea. Although water softeners aren't necessary and aren't recommended for drinking supplies due to potential sodium concerns, scale inhibitors might help in areas where water is blended. Medical advice generally favors unsoftened water for consumption.