SIA Olaines udens un siltums Wastewater Treatment Plant, Olaines pagasts, Latvia

SIA Olaines udens un siltums is a wastewater treatment plant located in Olaines pagasts, Olaines novads, Latvia. The facility serves a population equivalent of approximately 19,696, classifying it as a medium-sized agglomeration under EU regulations. The plant is situated in the Pārolaine area, near the Svīķu iela address, and plays a key role in managing municipal wastewater for this part of Latvia. As a plant operating under the EU Urban Waste Water Treatment Directive (91/271/EEC), SIA Olaines udens un siltums is expected to provide at least secondary treatment, which is standard for agglomerations of this size. The regulatory framework ensures that the plant meets environmental standards for effluent quality before discharge. The treated wastewater from this facility is discharged into the local hydrological system, which ultimately drains into the Baltic Sea via the Lielupe River basin. The Baltic Sea is a sensitive marine environment, and the plant's operations contribute to protecting its ecological health by reducing nutrient loads and pollutants. This is particularly important given the sea's vulnerability to eutrophication.

The plant discharges into the Lielupe River basin, which flows into the Gulf of Riga and then the Baltic Sea. The Baltic Sea is a brackish water body with limited water exchange, making it highly sensitive to nutrient pollution. The plant's treatment processes help mitigate eutrophication risks by reducing nitrogen and phosphorus loads, supporting the ecological balance of downstream aquatic habitats.