Zainsk Reservoir

Zainsk Reservoir
Zay Reservoir
Zainsk Reservoir
Location	Tatarstan
Coordinates	55°16′44″N 52°02′23″E
Type	reservoir
Basin countries	Russia
Max. length	12 km (7.5 mi)
Max. width	1.7 km (1.1 mi)
Surface area	20.5 km2 (7.9 sq mi)
Average depth	3.1 m (10 ft)
Water volume	52.3×10^6 m3 (42,400 acre⋅ft)
Settlements	Zainsk

Zainsk Reservoir or Zay Reservoir (Russian: Заинское водохранилище, Tatar: Зәй сусаклагычы) is a reservoir of the Zay River near Zainsk, Tatarstan, Russian Federation. It was filled in 1963 to be a cooling pond for Zainsk TTP. It has surface area 20.5 km², a length 12 km, mean width 1.7 km, mean depth 3.1 m and a volume 63 million cubic meters.