Glossary of Water and Wastewater Terms

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5 random terms from our glossary

elevation

The height to which something is elevated, such as the height above sea level.

sensitivity

(1) The smallest change in a process variable that an instrument can sense. (2) In particle counters, the smallest particle a particle counter will measure and count.

salinity

(1) The relative concentration of dissolved salts, usually sodium chloride, in a given water. (2) A measure of the concentration of dissolved mineral substances in water.

SNARL (suggested no adverse response level)

The concentration of a chemical in water that is expected not to cause an adverse health effect.

GIS

See geographic information system.