We're excited to announce that OWP and the Sac State campus is reopening! OWP’s office will be open to the public during working hours starting September 7, 2021. We will continue to follow all applicable health and safety protocols. To keep the campus community safe, please wear face coverings in all indoor campus spaces and refrain from visiting the campus if you are ill. For more information, visit www.csus.edu/return-to-campus.

Water and Wastewater Terms Beginning W

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

weir (WEER)

A wall or plate placed in an open channel and used to measure the flow of water or to control flow (from settling tanks and clarifiers) to ensure a uniform flow rate and avoid short-circuiting. The depth of the flow over the weir can be used to calculate the flow rate, or a chart or conversion table may be used to convert depth to flow. Also see proportional weir.