Reservoirs (Topical Term)

Wikipedia, Aug. 1, 2011 (A reservoir or an artificial lake 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.)

Narayana Reddy, D.V. Water management in Andhra, 2010: p. ix (to provide irrigation facilities to lands by excavating large tanks and canals) p. 193 (construction of tanks and dams) p. 194 (construction of sluices to the tank)

Web. 3 (tank 1a India: a pool of water: lake, reservoir)

The American Heritage dictionary of the English language, c2000 (tank 2. A usually artificial pool, pond, reservoir, or cistern, especially one used to hold water for drinking or for irrigation)

Webster, L. A dict. of environmental & civil engineering, c2000 (tank: Pool, pond, cistern, reservoir, etc., through which liquids pass or in which they are held for a period)