Water quality control in SUE “Vodokanal of St.Petersburg” is carried out at several levels in accordance with the approved programs.

 The Working Program of Potable Water Quality Production Control in St.Petersburg was developed in accordance with SanPin 2.1.4.1074-01 “Potable water. Hygiene requirements to potable water supplied by centralized systems. Quality control”; in 2007, it was approved by TU Rospotrebnadzor (Russian Federal Consumer Rights Protection and Human Health Control Service) of St. Petersburg and adopted by the Chairman of the Committee for Energy and Engineering Support.

The program covers 176 points where 83 parameters of water quality are checked.

The water quality control includes checks of composite organoleptic and physical-chemical parameters, as well as microbiological, parasitological (lamblia cysts), virological (presence of hepatitis A virus antigen and rotavirus antigen), hydro-biological (phyto - and zooplankton) and radiation safety parameters.

The Production Program of water quality control covers 306 additional points and ensures more detailed assessment of the water supply system. The most important 12 parameters are shortlisted and checked.

The control points to be included into the Production Program were selected according to the following principle based on systematic approach: waterworks – water mains – city quarter network – customer.

Water quality control levels

• biomonitoring
• laboratory control: laboratory staff at the waterworks take water samples at the inlet, throughout the treatment process and at the outlet
• metering
• checks by an independent company
• the Water Quality Research Center (water samples are taken every day)
• control by Rospotrebnadzor

The monitoring results show that potable water in St. Petersburg is harmless in terms of its chemical composition and safe in terms of epidemiological and radiation conditions.