LAMIA Wastewater Treatment Plant, Lamia, Greece

The Lamia wastewater treatment plant is located in the Roditsa community within the municipality of Lamia, in the Fthiotida regional unit of Central Greece. Serving an estimated population of 75,000, it is classified as a medium-to-large agglomeration under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant is situated near the coast of the Malian Gulf, an embayment of the Aegean Sea. Under the EU UWWTD, agglomerations with a population equivalent (PE) between 10,000 and 150,000 are generally required to provide secondary treatment (biological treatment) unless the receiving waters are designated as sensitive areas, which may necessitate tertiary treatment. The plant's designed capacity is 1. The facility is part of Greece's national wastewater infrastructure, regulated by the Hellenic Ministry of Environment and Energy. The plant's treated effluent discharges into the Malian Gulf, which is part of the Aegean Sea. This coastal environment supports diverse marine life and is important for local fisheries and tourism. The plant plays a key role in protecting the gulf's water quality and the broader marine ecosystem of the North Aegean Sea.

The Lamia plant discharges into the Malian Gulf, a coastal embayment of the Aegean Sea. This gulf receives freshwater inputs from the Spercheios River and other smaller streams, supporting a productive marine environment with seagrass meadows and fish nurseries. The plant's treatment performance is critical to preventing nutrient enrichment and maintaining the ecological health of the gulf, which is also a migratory corridor for marine species.