Glossary of Water and Wastewater Terms

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5 random terms from our glossary

stripped gases

Gases that are released from a liquid by bubbling air through the liquid or by allowing the liquid to be sprayed or tumbled over media.

PEL

See permissible exposure limit.

drawdown

(1) The drop in the water table or level of water in the ground when water is being pumped from a well or the drop in the water level of a tank or reservoir. (2) The amount of water used from a tank or reservoir.

launders

Sedimentation tank and filter discharge channels consisting of overflow weir plates (in sedimentation tanks) and conveying troughs.

prescriptive rights (pre-SKRIP-tive)

Water rights that are acquired by diverting water and putting it to use in accordance with specified procedures. These procedures include filing a request (with a state agency) to use unused water in a stream, river, or lake.