Kippax Water Hardness & Quality Report (2026)

Yorkshire Water supplies Kippax, a former mining village east of Leeds in the Airedale and Wharfe Valley hinterland, from a blend of Pennine upland reservoir supply and Magnesian Limestone (Permian Zechstein) groundwater in Yorkshire Water's east Leeds distribution zone, treated at regional West Yorkshire works. At 146 mg/L (10.2°Clark), Kippax's water is moderately soft — a balance between the soft Pennine reservoir baseline and the harder limestone groundwater from the eastern belt that characterises this transitional supply zone east of Leeds.

The soft Pennine reservoir water from Millstone Grit Series moorland catchments — Eccup Reservoir and the Leeds supply chain — dilutes the harder Magnesian Limestone groundwater from the Permian Zechstein belt that runs north–south through east Leeds and Kippax. This eastern Leeds community sits in the transition zone between the soft-water coalfield catchment and the harder limestone belt, where the Yorkshire Water distribution network blends proportions from both source types. The resulting moderately soft 146 mg/L reflects approximately equal soft-to-hard blend proportions in this part of the Leeds and District supply zone.

At 146 mg/L, Kippax's water is moderately soft with manageable limescale demands. Descaling the kettle every six to eight weeks is typically adequate. The combi-boiler benefits from a fitted scale inhibitor as a precaution. Washing-up liquid lathers satisfactorily at everyday quantities. Taps and shower heads develop moderate limescale deposits over several weeks; a monthly wipe with white vinegar or a mild descaler keeps fixtures clean. The moderately soft supply in Kippax reflects the classic Yorkshire split between soft Pennine uplands and harder Magnesian Limestone lowlands.