DEARHAM STW - Secondary Wastewater Treatment Plant in Dearham, England

DEARHAM STW is a municipal wastewater treatment plant located in Dearham, Cumberland, England. The facility serves a population of approximately 2,916 and operates under the regulatory framework of the United Kingdom, which implements the EU Urban Waste Water Treatment Directive (91/271/EEC) for secondary treatment standards. As a secondary treatment plant, it meets the minimum requirements for inland and coastal discharges under UK law. The plant has a designed capacity of 2,916 population equivalent and treats an average daily flow of 649.20 m³. The treatment process is secondary biological treatment, which typically involves activated sludge or trickling filters to reduce organic matter and suspended solids. The plant's capacity utilization is consistent with its design, indicating efficient operation for the community it serves. The treated effluent is discharged into the local water environment, ultimately reaching the Solway Firth via nearby rivers. The Solway Firth is a large estuary on the west coast of Britain, supporting diverse marine and bird life. The plant's proximity to the coast (within 10 km) means its discharge must comply with stringent environmental standards to protect sensitive coastal ecosystems.

DEARHAM STW discharges treated wastewater into local watercourses that drain into the Solway Firth, a major estuary on the Irish Sea. The Solway Firth is an ecologically important area, supporting migratory birds, fish, and marine habitats. The plant's secondary treatment level helps reduce nutrient and organic loads, protecting the estuary's water quality and biodiversity. The region's coastal environment is sensitive to pollution, making effective treatment essential for maintaining ecological balance.