PA San tex Wastewater Treatment Plant, Kubulu pagasts, Latvia

PA San tex is a wastewater treatment plant located in Grīvgols, Kubulu pagasts, Balvu novads, Latvia. It serves a population of approximately 2,385 people, classifying it as a small agglomeration under EU standards. The plant is situated inland, away from coastal areas, and its operations are subject to the EU Urban Waste Water Treatment Directive (91/271/EEC). As a small agglomeration, the plant is required to provide appropriate treatment to meet EU standards for secondary treatment or equivalent. The plant's scale suggests it likely employs biological treatment methods suitable for its population size. The regulatory framework ensures that effluent quality meets environmental standards before discharge. The treated wastewater from PA San tex is discharged into local water bodies that eventually drain into the Daugava River basin, which flows into the Baltic Sea. The plant plays a role in protecting the local watershed and downstream ecosystems, including the Gulf of Riga, by reducing nutrient and pollutant loads.

The plant discharges into local streams that are part of the Daugava River basin, which ultimately flows into the Baltic Sea via the Gulf of Riga. The Baltic Sea is a semi-enclosed sea sensitive to eutrophication from nutrient inputs. The plant's treatment helps mitigate nutrient pollution, supporting the ecological health of downstream aquatic habitats and coastal waters.