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
routine sampling
Sampling repeated on a regular basis.
discharge head
The pressure, in pounds per square inch or kilopascals, measured at the centerline of a pump discharge and very close to the discharge flange, converted into feet or meters. The pressure is measured from the centerline of the pump to the hydraulic grade line of the water in the discharge pipe.
discharge head[ft] = discharge pressure [psi] x (2.31 ft/psi)
or
discharge head[m] = discharge pressure[kPa] x (1 m/9.8 kPa)
net wastewater flow
The actual wastewater flow from a collection system that reaches a wastewater treatment plant. The net wastewater flow includes the net wastewater contribution, infiltration, and inflow and does not include losses through exfiltration.
split sample
A single grab sample that is separated into at least 2 parts such that each part is representative of the original sample. Often used to compare test results between field kits and laboratories or between 2 laboratories.
ppm
See parts per million.
