Standing water on soils in closed depressions. Unless the soils are artificially drained, the water can be removed only by percolation or evapotranspiration.
A type of drainage management which allows natural depressions to serve as temporary water-holding areas until the pumping system can pump the water away. If these ponding areas are improved, they should be called storage areas or reservoirs.
The pooling of rainwater in a roof depression; also called bird baths.