ELLERKER STW - South Cave, East Riding of Yorkshire Wastewater Treatment Plant

ELLERKER STW is a wastewater treatment plant located near South Cave in the East Riding of Yorkshire, England. It serves a population of approximately 10,304 people, classifying it as a medium-sized agglomeration under UK wastewater regulations. The plant is situated inland, about 50 km from the coast, and its treated effluent is discharged into local water bodies that eventually reach the Humber Estuary. As a UK wastewater facility, ELLERKER STW operates under the Water Industry Act 1991 and is subject to environmental permitting by the Environment Agency. For a population of this scale, secondary treatment is typically required, with tertiary treatment expected if the receiving waters are sensitive. The treated wastewater from ELLERKER STW ultimately drains into the Humber Estuary, a major tidal estuary that supports diverse aquatic life and important bird populations. The estuary flows into the North Sea, making the plant's discharge quality critical for both local and downstream ecosystems. The region's agricultural landscape also relies on clean water from the same catchment.

ELLERKER STW discharges into local streams that feed into the Humber Estuary, a large tidal estuary on England's east coast. The estuary is ecologically sensitive, supporting migratory birds, fish, and invertebrates. The plant's location inland but within 50 km of the coast means its effluent can influence coastal water quality. The Humber Estuary ultimately drains into the North Sea, a key marine environment for fisheries and biodiversity.