Vodokanal St. Petersburg supplies potable water to the population of 5,2 million people and to tens of thousands of city companies and organizations.

The owner of Vodokanal St. Petersburg assets is the City of St. Petersburg represented by authorized state bodies.

Vodokanal also operates the city fountains and public toilets; since 2012, a new activity area has appeared in Vodokanal – construction and operation of permanent snow-melting stations.

The water supply system includes:

• 7200,2 km of water networks
• 193 booster pumping stations
• 9 water treatment plants (the largest ones – Southern  Water Treatment Plant, Northern Water Treatment Plant, Main Water Treatment Plant)
• 2 sodium hypochlorite plants

The sewerage system includes:

• 8737,9 km of sewerage networks
• 270,7 km of tunnel collectors
• 188 wastewater pumping stations
• 17 wastewater treatment plants (including 14 municipal wastewater treatment plants and 3 surface runoff treatment plants. The largest plants are Central Wastewater Treatment Plant, Northern Wastewater Treatment Plant, South-West Wastewater Treatment Plant)
• 3 wastewater sludge incineration plants
• 11 permanent snow-melting stations
• 6 permanent technically equipped snow collection points

Vodokanal's major achievements in water treatment:

• all potable water is UV treated before supply to the city to ensure its epidemiological safety;
• no liquid chlorine is used for water disinfection, it is replaced with hazard-free, non-toxic sodium hypochlorite;
• hazard-free and non-toxic ammonia sulfate is used for water ammonization instead of ammonia solutions;
• a bio-monitoring system is used to check the Neva water quality where the crayfish are chief "inspectors";
• PAC (powdered activated carbon) dosing system is implemented to remove odor and oil.

Vodokanal's major achievements in wastewater treatment:

• As much as 98.5 % of all wastewater are treated in St. Petersburg now. On 10 October 2013, the Northern Tunnel Collector was put into operation to allow the closure of 76 untreated wastewater discharges equivalent to nearly 122 Mio. m³ /year. In December 2014, Vodokanal St. Petersburg closed nine direct discharges from Petrovskiy Stadium which had brought about 1000 m³/day of untreated sewage into the Neva. Moreover, direct discharges were eliminated along the Petrogradskaya embankment in late 2014, and along the Admiralteyskaya and Fontanka embankments – in 2015;
• St. Petersburg has found a solution to the sewage sludge disposal problem: there are three sludge incineration plants in operation in the city;
• St. Petersburg wastewater treatment plants have implemented the enhanced nutrient (nitrogen and phosphorus) removal process to meet the HELCOM (the Baltic Marine Environment Protection Commission) requirements. It led to the reduction of biological burden on the Neva, the Gulf of Finland and the Baltic Sea.
• Vodokanal has implemented a biomonitoring system to check the quality of treated effluent (the check is done by Australian red-claw crayfish) and the composition of flue gases from the sludge incineration plant – using giant African snails.

Daily average supply of potable water in St. Petersburg

• 2004  – 2,578,800 m³
• 2005  – 2,514,700 m³
• 2006  – 2,466,900 m³
• 2007  – 2,311,200 m³
• 2008  – 2,168,900 m³
• 2009  – 2,028,200 m³
• 2010  – 1,994,700 m³
• 2011  – 1,922,900 m³
• 2012  – 1,853,300 m³
• 2013 –  1,808,800 m³
• 2014  – 1,712,700 m³
• 2015  – 1,635,600 m³
• 2016 – 1,603,900 m³

In 2016, transportation leakage was 12.7%.

Vodokanal has an efficient customer feedback system: the company hot line (+7 812 305-09-09) works round the clock. 

Vodokanal pays a great attention to the awareness raising work. The Company has the Information and Training Centre that includes the Universe of Water Museum Complex and the Youth Environmental Centre.

The International Advanced Water Technologies Centre also operates at premises of Vodokanal. 

Another Vodokanal’s social awareness raising project is the Internet web-site da-voda.com that disseminates the ideas of solicitous attitude to water resources.