KRYA VRYSSI Wastewater Treatment Plant, Krya Vryssi, Central Macedonia, Greece

KRYA VRYSSI is a wastewater treatment plant located in Krya Vryssi, a town in the Pella regional unit of Central Macedonia, Greece. The plant serves a population of approximately 5,160 people, placing it in the small agglomeration category under the EU Urban Waste Water Treatment Directive (UWWTD). As a Greek facility, the plant operates under the national implementation of the EU UWWTD, which requires secondary treatment for inland discharges from agglomerations of this size. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Thermaic Gulf via the Axios River system. This coastal gulf supports diverse marine life and is an important ecological area in the northern Aegean Sea. The plant's location more than 50 km from the coast reduces direct marine impact.

The treated effluent from KRYA VRYSSI likely enters the local drainage network that flows into the Axios River, one of the major rivers in northern Greece. The Axios River discharges into the Thermaic Gulf, a semi-enclosed basin of the Aegean Sea that supports fisheries and migratory bird populations. The watershed is influenced by agricultural runoff from the surrounding plains, making nutrient management important for downstream water quality.