FROGHALL STW - Secondary Wastewater Treatment in Staffordshire Moorlands, England

FROGHALL STW is a secondary wastewater treatment facility located in the village of Froghall, within the Staffordshire Moorlands district of Staffordshire, England. The plant serves a population of approximately 3,011 residents and has a designed capacity of 3,500 cubic meters per day, with an average daily discharge volume of 670.35 cubic meters. As a secondary treatment plant, FROGHALL STW provides biological treatment to remove organic matter and suspended solids, meeting the standards required under the UK's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (under 10,000 population equivalent), secondary treatment is the standard requirement, ensuring the treated effluent is suitable for discharge into inland waters. The treated wastewater from FROGHALL STW is discharged into a local watercourse within the River Trent catchment, which ultimately drains into the North Sea via the Humber Estuary. The plant plays a key role in protecting the water quality of local streams and rivers in the Churnet Valley, an area known for its natural beauty and ecological significance.

The treated effluent from FROGHALL STW enters a tributary of the River Churnet, which flows into the River Dove and then the River Trent. The Trent catchment supports diverse aquatic life and is an important migratory corridor for fish species such as salmon and eels. The plant's secondary treatment helps reduce nutrient loading and organic pollution, safeguarding the ecological health of downstream waters that eventually reach the Humber Estuary and North Sea.