Limavady Water Hardness & Quality Report (2026)

Northern Ireland Water supplies the Limavady area, drawing from Altnaheglish Reservoir. The water is treated at Altnaheglish Water Treatment Works. Specific supply zones include ZN0601 - Ballinrees Limavady, ZN0603 - Carmoney Eglinton, and ZN0604 - Caugh Hill. While detailed treatment specifics for these zones weren't found, NI Water manages the entire water and sewerage network across Northern Ireland, including infrastructure like the Limavady Waste Water Treatment Works. Recent updates confirm restored supply following repairs in areas such as Trunk Durham Street and Wellwood Street.

The water originates from the Binevenagh basalt plateau in County Londonderry. While Northern Ireland's broader geology features a mix of Carboniferous limestone, basalt, and schists, the specific rock formations and aquifer details for the Limavady supply zones were not available in the retrieved data. The Binevenagh basalt, however, is known to contribute to very soft water characteristics, with readings around 2.9°Clark.

Because the water is very soft, you likely won't see much limescale buildup on appliances like kettles or taps. This softness means soaps and detergents will lather more easily, potentially requiring less product. If you're accustomed to harder water, you might notice a slight difference in how cleaning products perform. For personalized advice on your specific water quality, including hardness levels and dishwasher settings, NI Water offers a postcode-based lookup tool on its website. In rare instances following network repairs, temporary discolouration might occur due to air in the system.