Answer: reservoir

AnswerCrossword Clue
RESERVOIRSource of a vital supply
RESERVOIRCroton, for instance.
RESERVOIRAshokan or Croton.
RESERVOIRLake Mead is the world's largest.
RESERVOIRWater supply.
RESERVOIRArtificial lake.
RESERVOIRLarge supply.
RESERVOIRT.V.A. facility
RESERVOIRDam result, often
RESERVOIRWater storage site
RESERVOIRWater tower
reservoirto keep as in a reservoir, a store
reservoirsupply
reservoirplace where water is stored for use