Reservoir Operation Agencies
DWR State Water Project, U.S. Bureau of Reclamation, US Army Corps of Engineerings (USACE), and local agencies operate reservoirs and need to know how much water can safely be stored.
State Agencies
Office of Emergency Services and the State Water Resources Control Board and other State Agencies in responding to drought or flood emergencies.
Utility Companies
Public and private utilities the generate electricity with hydropower. Good water years enable the utilities to generate more electricity using hydro power than from carbon-based sources. Dry water years have the opposite effect.