It's really a massive subterranean reservoir, and it acts as the balance for our entire Platte system.

The above mentioned river plains have rich subterranean reservoirs of water.

A subterranean reservoir, now known as the Nun's Well, was also built at Europa Point for the supply of water to the city.

The waste ran, so said Aufors, through a cloaca to a subterranean reservoir outside the city which was washed out by a diversion from the subsurface river.

The water percolated up from some subterranean reservoir, as though this were the vanishing sap of the tree.

The distillation water supply is stored in a subterranean reservoir.

The water's pouring into subterranean reservoirs.

Private subterranean reservoirs could supply houses and buildings for domestic use and garden irrigation as well.

As the subterranean reservoirs run dry, his 4,000-foot-deep wells bring up water that is increasingly mineral-laden.

The problem is particularly acute on Long Island, where water percolating through landfills winds up in subterranean reservoirs that provide drinking water.