Glossary of Water and Wastewater Terms
A B C D E F G H I J K L M N O P Q R S T U V W Y Z5 random terms from our glossary
zooplankton (ZOE-uh-PLANK-ton)
Small, usually microscopic animals (such as protozoans), found in lakes and reservoirs.
pump pit
A dry well, chamber, or room below ground level in which a pump is located.
lamp hole
A small, vertical pipe or shaft extending from the surface of the ground to a sewer. A light (or lamp) may be lowered down the pipe for the purpose of inspecting the sewer. Rarely constructed today.
radial to impeller
Perpendicular to the impeller shaft. Material being pumped flows at a right angle to the impeller.
MRDL (maximum residual disinfectant level)
The highest level of a disinfectant allowed in drinking water without causing an unacceptable possibility of adverse health effects.
