Darfield STW - Barnsley, South Yorkshire Wastewater Treatment Plant

Darfield STW (Sewage Treatment Works) is a municipal wastewater facility located near Barnsley in South Yorkshire, England. The plant serves a population of around 8,207 people in the Darfield and Broomhill areas, operating as part of the region's wastewater infrastructure managed under UK environmental regulations. As a plant serving a medium-sized agglomeration, Darfield STW is subject to the UK's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for inland discharges. The facility's treatment processes are designed to meet the standards set by the Environment Agency, the regulatory body for water quality in England. The treated effluent from Darfield STW is discharged into the local water environment, contributing to the River Don catchment. This river flows through South Yorkshire and eventually joins the River Ouse, which drains into the Humber Estuary and the North Sea. The plant plays a key role in protecting water quality in this urban and industrial region.

Darfield STW discharges into the River Don catchment, a major watercourse in South Yorkshire that flows eastward to join the River Ouse and ultimately the Humber Estuary. The Humber Estuary is a large coastal ecosystem supporting diverse birdlife and fish species, including migratory salmonids. The plant's operations help maintain water quality in this ecologically sensitive area, which is important for both wildlife and downstream water users.