(KZN.RU, November 10, Alsu Safina). Ilsur Metshin, the Mayor of Kazan, held a working meeting on to the eco-rehabilitation of the Lebyazhie lakes system, on the shore of the Lake Bolshoe Lebyazhie. As the Lake Svetloe, it is now actively filled with water. Today, 350 thousand cubic meters of water have been filled to the Bolshoe Lebyazhie and the Svetloe Lebyazhie so that the depth of Lake Bolshoe is already about 3 meters. The filling of reservoirs is conducted in a planned mode.
“We need to pour about 170 thousand cubic meters of water to fill the lakes to the design mark”, said Igor Kulyazhev, the deputy head of the Executive Committee and the chairman of the Committee for External Improvement. According to him, the filling of the lakes Svetloe Lebyazhie and Bolshoe Lebyazhie with water will be completed by the end of November, if there is no severe frost.
For now, the water doesn’t enter only the Maloe Lebyazhie. The culvert from the Bolshoe Lake to it is currently closed by a latch. After a spring flood, the pump will work again as soon as the situation in the filled lakes stabilizes, the water will continue to flow into the lake system. The latch between the Bolshoe and the Maloe will be opened and the water level in Maloe Lebyazhie will also begin to rise. At the time of the work beginning, the Maloe Lake was the only one not dried up but now the water level in the Bolshoe is higher.
“It is planned to fill the bowls of lakes with about 1 million cubic meters of water together with the Maloe Lebyazhie”, said I. Kulyazhev. Ilgiz Latypov, the deputy general director of the “TAIF”, Sergey Mironov, the head of the Kirovsky and Moskovsky districts’ administration, Albert Zaripov, the deputy director of the “Tatmelioratsiya”, and others also took part in the meeting.
Now the specialists of the “Tatmelioratsiya” are controlling the process of the water filling. “Tatmelioratsiya” is a company that prepared a project for eco-rehabilitation of the lake system and carried out dredging and waterproofing works there.
Previously, these natural lakes existed at the expense of surface waters. The catchment was carried out from the entire adjoining territory. Subsequently, the water balance of the Lebyazhie Lakes was disrupted during the construction of roads and industrial structures and they began to dry up. During the eco-rehabilitation, the Svetloe and the Bolshoe Lebyazhie were significantly deepened: in total, about 400 thousand cubic meters of soil were removed from their bottom. After that, a waterproofing shield was laid on the bottom of these lakes. Due to this, the water from the bowl of lakes will not go to the sand. A layer of 50-70 cm of soil was laid on top of the shield. Only after the completion of these works, water was launched in the Svetloe Lake from the Izumrudnoe Lake with the help of a pumping station. The water passes through the connection into the Lake Bolshoe.