Lake Băneasa is a reservoir

Reservoir

A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...

 on the Colentina River

Colentina River

The Colentina River is a tributary of the Dâmboviţa River in Romania.The following lakes are built on the river:* Lake Moarta* Lake Ciocăneşti I* Lake Ciocăneşti I* Lake Crevedia VI* Lake Buftea* Lake Mogoşoaia* Lake Chitila...

 at Băneasa

Baneasa

Băneasa is a borough in the north side of Bucharest, near the Băneasa Lake . Like all north-side districts of Bucharest, it is relatively sparsely populated, with large areas of parkland...

 in Sector 1

Sector 1 (Bucharest)

Sector 1 is a sector in Bucharest. It includes the northern part of the city centre as well as the northwestern districts of Băneasa and Pipera. It is the wealthiest sector in Bucharest.-Quarters:*Aviatorilor*Aviaţiei*Băneasa*Bucureştii Noi*Dămăroaia...

 of Bucharest

Bucharest

Bucharest is the capital municipality, cultural, industrial, and financial centre of Romania. It is the largest city in Romania, located in the southeast of the country, at , and lies on the banks of the Dâmbovița River....

, Romania

Romania

Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

. The lake

Lake

A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...

has a length of 3 kilometers (1.9 mi), a width between 50 meters (160 ft) and 400 meters (1,300 ft), a surface area of 40 hectares (0.40 km2), a depth between 1 meter (3.3 ft) and 3 meters (9.8 ft), a volume of 630,000 cubic meters (22,000,000 cu ft) and a debit of 2.5 m/s.