Overview
TODMORDEN STW serves the Calderdale area of West Yorkshire, England, treating wastewater for approximately 14,334 people. The plant discharges into the local river system within the River Calder catchment.
TODMORDEN STW is a wastewater treatment plant located in Calderdale, West Yorkshire, England, serving a population of around 14,334. Situated in the Upper Calder Valley, the plant is part of the region's municipal wastewater infrastructure managed under UK environmental regulations. As a medium-sized agglomeration, the plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive (UWWTD), which requires secondary treatment for populations between 10,000 and 150,000. The plant's treatment process meets these standards to protect the receiving water environment. The treated effluent is discharged into the River Calder, a major tributary of the River Aire, which flows into the Humber Estuary and ultimately the North Sea. The plant plays a key role in maintaining water quality in the Calder catchment, supporting aquatic life and downstream ecosystems.
Environmental context
The plant discharges into the River Calder, which flows through West Yorkshire before joining the River Aire near Castleford. The Aire then feeds into the Humber Estuary, a large tidal system that supports diverse bird populations and fish species. The Calder catchment is ecologically sensitive, with habitats for otters and salmonids, making effective wastewater treatment essential for preserving biodiversity.
Frequently asked questions
TODMORDEN STW is located on Halifax Road in Mytholm, Calderdale, West Yorkshire, England, with coordinates 53.7340° N, 2.0450° W.
The plant serves approximately 14,334 people in the Calderdale area.
Treated wastewater from TODMORDEN STW is discharged into the River Calder, which flows through West Yorkshire and eventually reaches the North Sea via the Humber Estuary.
The plant protects the River Calder and its downstream water bodies, including the River Aire and the Humber Estuary, by treating wastewater to regulatory standards.
As a plant serving over 10,000 people, TODMORDEN STW operates under the UK's Urban Waste Water Treatment Regulations, which transpose the EU UWWTD. This requires secondary treatment to protect sensitive river ecosystems like the Calder.
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