Standing water on soils in closed depressions Unless the soils are artificially drained, the water can be removed only by percolation or evapotranspiration
This involves establishing a steep enough pitch, properly spaced bows or rafters, as well as maintaining a taut fabrics, so draining water or melting snow cannot cause the fabric to sage and collect water on the surface
The puddling of water on a site or its improvements due to improper water sheet flow
water backed up in a channel or ditch as the result of a culvert of inadequate capacity
In flat areas, runoff collects, or ponds in depression and cannot drain out Flood waters must infiltrate slowly into the soil, evaporate, or be pumped out
The collection of water on driveways, walkways, or lawns Ponding for excessive periods of time is indicative of grading problems
Standing water in a depression that is removed only by percolation, evaporation, and/or transpiration For delineation of hydric soils the ponding event must last greater than seven days (added 6/1/2000)
The variation of daily water flows above and below the weekly average flow (for instance, average weekday flow higher than average weekend flow), primarily due to hydroelectric generating operations (variation hebdomadaire)