Overview
Storrington STW serves approximately 7,800 people in West Sussex, England. The plant discharges treated wastewater into the local water environment, contributing to the protection of the River Arun catchment.
Storrington STW is a wastewater treatment plant located near Storrington in West Sussex, England, serving a population of around 7,800. The facility is situated in a rural area near Parham Airfield and operates as part of the region's municipal wastewater infrastructure. As a UK wastewater treatment plant serving a medium-sized agglomeration, Storrington STW is regulated under the Urban Waste Water Treatment (England and Wales) Regulations 1994, which transpose the EU Urban Waste Water Treatment Directive. These regulations require secondary treatment for discharges to freshwater and estuaries from populations of this scale. The plant's designed capacity is 1.00 (likely in megalitres per day or similar unit), indicating its operational scale. The treated effluent from Storrington STW ultimately enters the River Arun catchment, which flows southward through West Sussex before discharging into the English Channel at Littlehampton. The River Arun supports diverse aquatic life and is an important waterway for the region, with sensitive habitats downstream including estuarine and coastal environments.
Environmental context
Storrington STW discharges into the River Arun catchment, which drains through the South Downs to the English Channel. The Arun is a chalk stream supporting diverse species such as brown trout and Atlantic salmon. Downstream, the Arun Estuary provides important habitat for migratory birds and is part of a wider coastal ecosystem that includes designated Sites of Special Scientific Interest.
Frequently asked questions
Storrington STW is located near Parham Airfield on Pulborough Road, Charity Farm, in the Storrington and Sullington area, Horsham, West Sussex, England.
The plant serves approximately 7,800 people in the Storrington area.
The treated effluent from Storrington STW discharges into the River Arun catchment, which flows south to the English Channel.
The plant operates under the Urban Waste Water Treatment (England and Wales) Regulations 1994, which implement the EU Urban Waste Water Treatment Directive. These regulations require secondary treatment for discharges from agglomerations of this size.
For a population of around 7,800, secondary treatment is typically required under UK regulations, which involves biological treatment to reduce organic matter and suspended solids before discharge.
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