Water for a big city
SUE “Vodokanal of St. Petersburg” provides drinking water to 5 million citizens and tens of thousands of companies and enterprises. One more task of Vodokanal is to collect and treat wastewater.
SUE “Vodokanal of St. Petersburg” provides drinking water to 5 million citizens and tens of thousands of companies and enterprises. One more task of Vodokanal is to collect and treat wastewater.
Since 2013, endangered pinnipeds - grey seals and (Baltic and Ladoga) ringed seals- have been rehabilitated at the premises of Repino wastewater treatment plant in the Kurortny District of St. Petersburg.
10 October 2013, the biggest environmental project – the Northern Tunnel Collector construction – was completed
Since June 28, 2011 Saint-Petersburg has been fully implementing the Helsinki Commission's recommendations for preservation of the Baltic Sea
At present, 99% of wastewater is treated in St. Petersburg. All the wastewater treatment plants provide wastewater treatment in full compliance with the recommendations of the Baltic Marine Environment Protection Commission. One of the biggest environmental projects focused on closing untreated wastewater discharges into the water bodies was the construction of the Northern Tunnel Collector completed in October 2013. Thanks to the Northern Tunnel Collector, 76 untreated domestic wastewater discharges totaling 334,000 m3/day were diverted to the sewerage system.
At the end of 2013, the City Government adopted the St. Petersburg Water and Wastewater Master Plan for the period up to 2025. In 2015, the Master Plan was revised. In accordance with the Master Plan, untreated domestic wastewater discharges into the water bodies will be fully closed by 2020.
Wastewater treatment quality in 2018
No. |
Substance |
Concentration in the total effluent volume, mg/l |
Regulatory requirements*, mg/l |
1 |
Total Nitrogen |
8.6 |
max. 10 |
2 |
Total Phosphorus |
0.21 |
max 0,5 |
3 |
Suspended solids |
5 |
max 10 |
4 |
TBOD total |
4 |
max 6 |
* Regulatory requirements include the Russian requirements and the recommendations of Helsinki Commission.
Wastewater treatment quality in 2018