LADWP uses the numerous gauging stations on creeks and rivers in the Owens Valley watershed to measure the amount of runoff from the Sierra Nevada as part of its operation of the Los Angeles Aqueduct system.  Each year using information from rain gauges, snow measurements and creek flow measurements, LADWP forecasts the amount of runoff to assist its annual planning.

Owens Valley Runoff – 2023 Forecast

A comparison of the forecast and measured runoff is included in the Inyo County Annual Report.

Historical Owens Valley Runoff and Pumping

Table of Pumping, Runoff Uses 1970-2023

Graph of Runoff and Pumping 1970-2023

General North/South Boundaries of LADWP Wellfields