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

Liquid removed from settled sludge. Supernatant commonly refers to the liquid between the sludge on the bottom and the water surface of a basin or container.

Water diffused as a gas in the atmosphere.

The maximum load of pollutants each discharger of waste is allowed to release into a particular waterway. Discharge limits are usually required for each specific water quality criterion being, or expe [..]

A measure of the soil's susceptibility to raindrop impact, runoff and other erosional processes.

A tough, environmentally indestructible plastic that releases hydrochloric acid when burned.

Natural or constructed watercourse or outlet that is shaped or graded and established in suitable vegetation for the disposal of runoff water without erosion.

Irrigation method in which water travels through the field by means of small channels between each row or groups of rows.

The area around a discharging well where the hydraulic head (potentiometric surface) in the aquifer has been lowered by pumping. In an unconfined aquifer, the cone of depression is a cone-shaped depre [..]

Water discharged from restrooms, showers, food preparation facilities, or other nonindustrial operations; also known as "gray water."