Overview
Sisland STW is a wastewater treatment plant in South Norfolk, England, serving approximately 7,300 people. It operates under the UK's regulatory framework for wastewater treatment.
Sisland STW is a wastewater treatment plant located on Low Lane in Sisland, South Norfolk, Norfolk, England. The facility serves a population of approximately 7,331 people, classifying it as a small to medium agglomeration under UK and EU standards. The plant is situated inland, more than 50 km from the coast, and its operations are regulated under the UK's implementation of the Urban Waste Water Treatment Directive (UWWTD). As a plant serving fewer than 10,000 people, Sisland STW is subject to the requirements of the UWWTD, which mandates appropriate treatment based on the sensitivity of the receiving environment. Plants of this scale typically employ secondary treatment or equivalent to meet discharge standards. The designed capacity is reported as 1.00, though the unit is unspecified, indicating the plant is sized to handle the local population's wastewater. The treated effluent from Sisland STW is discharged into local watercourses that ultimately drain into the North Sea via the Yare River system. The plant plays a key role in protecting the water quality of the Norfolk Broads, a network of rivers and lakes that support diverse aquatic life and are important for recreation and conservation. By treating wastewater before discharge, the facility helps maintain the ecological health of this sensitive freshwater ecosystem.
Environmental context
Sisland STW discharges treated wastewater into local tributaries that feed into the River Yare, which flows through the Norfolk Broads and eventually into the North Sea at Great Yarmouth. The Norfolk Broads are a network of shallow lakes and rivers that support a rich diversity of aquatic plants, fish, and bird species. The plant's operations are critical to preventing nutrient enrichment and maintaining water quality in this ecologically sensitive area, which is a popular destination for boating and wildlife watching.
Frequently asked questions
Sisland STW is located on Low Lane in Sisland, South Norfolk, Norfolk, England, with the postcode NR14 6EF.
Sisland STW serves approximately 7,331 people, classifying it as a small to medium agglomeration under UK wastewater regulations.
Sisland STW discharges treated effluent into local watercourses that drain into the River Yare, part of the Norfolk Broads system, which ultimately flows into the North Sea.
Sisland STW operates under the UK's implementation of the EU Urban Waste Water Treatment Directive (UWWTD), which sets treatment standards based on population size and receiving water sensitivity.
For plants serving 7,000 people, secondary treatment is typically required under the UWWTD, unless the receiving waters are designated as sensitive, in which case more advanced treatment may be needed.
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