ODELL STW Wastewater Treatment Plant, Felmersham, England

ODELL STW is a wastewater treatment plant located in Felmersham, Bedford, England, serving a population of around 3,689. The plant provides secondary treatment, which is the standard biological treatment stage required under the EU Urban Waste Water Treatment Directive for agglomerations of this size. With a designed capacity of 4,950 cubic meters per day and an average daily discharge of 821.30 cubic meters, the facility operates well below its capacity, indicating room for future growth or seasonal variations. The plant's secondary treatment process typically involves biological oxidation and sedimentation, ensuring that organic pollutants are significantly reduced before discharge. As a facility serving fewer than 10,000 people, it falls under the category of small agglomerations under UK regulations, which mandate secondary treatment as a minimum. The plant is likely regulated by the Environment Agency under the Water Resources Act 1991 and the Environmental Permitting Regulations. The treated effluent is discharged into local watercourses that eventually drain into the River Great Ouse, which flows through Bedfordshire and into The Wash, an estuary on the North Sea. This river system supports diverse aquatic life and is important for regional biodiversity. The plant's inland location and secondary treatment level help protect the downstream environment from nutrient pollution.

ODELL STW discharges treated wastewater into local tributaries of the River Great Ouse, which flows through Bedfordshire and into The Wash, a large estuary on the North Sea. The River Great Ouse supports a variety of fish species, including pike, perch, and roach, and provides habitat for waterfowl and other wildlife. The plant's secondary treatment reduces organic load and helps maintain water quality in this ecologically sensitive river system.