The reservoirs were inspected and samples of water were taken. Today, on the first day of the 2018 World Cup in order to control the quality of natural water, specialists of the laboratory of the Ministry of Ecology and Natural Resources of the Republic of Tatarstan conducted a regular monitoring of water objects. One brigade of ecologists surveyed the Kazanka River with the help of a mobile laboratory on the boat KS-701¸ the second - the Volga on a patrol vessel Flamingo.