CALVERTON STW Wastewater Treatment Plant, Gedling, Nottinghamshire

CALVERTON STW is a wastewater treatment plant located on Bonner Lane in Calverton, within the Gedling borough of Nottinghamshire, England. It serves a population of around 9,000 residents, making it a small to medium-sized facility in the East Midlands region. The plant is part of the United Kingdom's wastewater infrastructure, which is regulated under the Urban Waste Water Treatment Regulations (transposing the EU Urban Waste Water Treatment Directive). As a plant serving a population equivalent of approximately 9,000, it falls under the category requiring secondary treatment under UK regulations. Plants of this scale typically employ biological treatment stages to meet consent conditions set by the Environment Agency. It operates within a regulatory framework that mandates compliance with environmental quality standards. The treated effluent from CALVERTON STW is discharged into local watercourses that ultimately drain into the River Trent, one of the major rivers in the East Midlands. The River Trent flows through Nottinghamshire and into the Humber Estuary, which is a significant ecological and economic resource. The plant plays a key role in protecting the water quality of the Trent catchment, supporting aquatic life and downstream uses such as agriculture and recreation.

CALVERTON STW discharges into the River Trent catchment, which flows eastward to the Humber Estuary and the North Sea. The Trent is a major river supporting diverse fish populations, including salmon and coarse fish, and its floodplain provides important habitats for birds and invertebrates. The plant's treatment helps maintain water quality in this ecologically sensitive river system, which is used for drinking water abstraction and recreation downstream.