Glossary of Water and Wastewater Terms

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5 random terms from our glossary

SDWA

See Safe Drinking Water Act.

inverted siphon

A pressure pipeline used to carry wastewater flowing in a gravity collection system under a depression, such as a valley or roadway, or under a structure, such as a building. Also called a depressed sewer.

base metal

A metal (such as iron) that reacts with dilute hydrochloric acid to form hydrogen. Also see noble metal.

remote terminal unit (RTU)

A computer-based control device containing programmable software; used to control process variables and equipment.

well log

A record of the thickness and characteristics of the soil, rock, and water-bearing formations encountered during the drilling (sinking) of a well.