It was established in 1955 due to the sharp increase in the demand for drinking and technical water in the cities of Baku and Sumgait. The water capacity of the reservoir is 186 million m³, the useful volume is 150 million. is m³. The length of the reservoir is 8.74 km, the maximum width is 2.15 km, the length of the coastline is 23.3 km, and the maximum depth is 28.5 meters. In this facility of special importance, Safe Life company performed the following services: perimeter security system, video surveillance system, public address system, uninterrupted power supply system, access control systems, addressable fire alarm, automatic gas extinguishing, RLS and post construction.