PU Keguma stars Wastewater Treatment Plant, Tomes pagasts, Latvia

PU Keguma stars is a wastewater treatment plant located in Tomes pagasts, Ogres novads, Latvia. The plant serves a population of 489 and operates with secondary treatment, meeting the standard requirements for small agglomerations under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant's designed capacity is 3,500 m³/day, with an average discharge volume of 249.43 m³/day. As a secondary treatment facility, PU Keguma stars provides biological treatment to reduce organic matter and suspended solids. For small agglomerations in Latvia, secondary treatment is the baseline requirement, and the plant's capacity utilization suggests it is operating well within its design limits. The regulatory framework under the EU UWWTD ensures that discharges meet quality standards to protect receiving waters. The plant discharges into local watercourses that eventually drain into the Daugava River basin, which flows into the Gulf of Riga in the Baltic Sea. The Daugava River is a major waterway in Latvia, supporting diverse aquatic life and providing important ecological services. The plant's treatment helps maintain water quality in this downstream environment.

The plant discharges into the Daugava River basin, which flows through central Latvia and empties into the Gulf of Riga, a part of the Baltic Sea. The Daugava River supports a variety of fish species and is an important migratory corridor for salmonids. The Baltic Sea is a sensitive brackish water body with limited water exchange, making nutrient and pollutant control critical for preventing eutrophication. The plant's secondary treatment contributes to reducing organic and nutrient loads in this ecologically significant watershed.