* Due to the complex nature of calculating the amount diverted for each water right, which involves multiple devices and data that need verification later in the year, a Measurement Method is used to quantify the amount of water diverted under all separate priorities of rights being exercised pursuant to California Code of Regulations, Title 23, Division 3, Chapter 2.8, Section 934. The amount diverted during the year will be reported in the annual Report of Licensee for each separate water right.

The conversion method to determine volume of water passing through a measurement device varies based on the type of device used. A stream gauge measures stage (in feet), converted to discharge (cubic feet per second) using a rating table, which is then converted to volume based on the use of conversion factors and duration of flow. A reservoir gauge measures water level elevation in the reservoir, which is then converted to volume using a depth-capacity rating table. Many meters record analog readings that are converted to discharge (cubic feet per second), which is then converted to volume based on the use of conversion factors and duration of flow.