11.  At times of low demand, electricity can be used to pump water from a low reservoir to a high reservoir.

12.  Also, pumping so much water into porous rock confined between impermeable layers could, in theory, crack the ceiling or floor, some geologists have said.

13.  As an energy reserve, the city utility also agreed to pump enough water into its Castaic Pumping Station -- at a cost borne by the state.

14.  As upstream diversions increase, environmentalists contend, wells near Yuma that now pump water to Mexico will not provide enough water.

15.  At night a team of repairmen would pump water from behind the metal jacket that covered the inner concrete coating of the ring.

16.  At the mouth of the Salinas River last week, artichoke growers in the town of Castroville struggled to pump flood water from their soggy fields.

17.  At night, when the rates drop, water is pumped back into the lake.

18.  Before lunch, students went to the basement where Miss Learn pumped water and watched each child wash and dry his or her hands.

19.  A century-old legal principle allows landowners to pump underground water virtually without limit.

20.  Across the street at Hunter Plaza, Water Department workers pumped water out of the apartment building.