Surface impoundment

Surface impoundment: An indented area in the land's surface, such a pit, pond, or lagoon.

Surface Impoundment
Treatment, storage, or disposal of liquid hazardous wastes in ponds.
Surface Runoff ...

Disposal may be accomplished through use of approved secure landfills, surface impoundments, land farming, deep-well injection, ocean dumping or incineration.

wastes; surplus or banned pesticides or other chemicals; polluted soils; and drums containing hazardous materials from removal actions or accidental releases. Disposal may be accomplished through use of approved secure landfills, surface impoundments, ...

See also: Environment, Toxic, Liquid, Landfill, Release