At what water height does a Parshall Flume measure a flow of 72,607 MGD?

A Parshall Flume is a type of flow measurement device used to measure the flow rate of liquid in an open channel. The flow rate can be determined based on the height of the water above the flume's inlet. The relationship between flow rate and water height can be defined using specific equations and tables that are unique to the dimensions and characteristics of the particular flume in use.

In this scenario, the question asks for the water height corresponding to a flow of 72,607 million gallons per day (MGD). To solve this, one typically refers to established calibration tables or equations that relate flow rates to head measurements for the specific size of the Parshall Flume.

The answer being 1.2 feet indicates that, based on the established calibration for that particular flume size, a water height of 1.2 feet allows for a flow measurement of 72,607 MGD. This value is derived from empirical data that correlates specific heights to flow rates, confirming that the water height directly affects the resulting flow measurement in a predictable manner.

Understanding the principle of flow measurement in a Parshall Flume is crucial, as it allows operators to accurately gauge the amount of water flowing through a channel, ensuring effective water management and usage