The WATERIGHT web site was developed by the Center for Irrigation Technology at Fresno State with significant support from the US Bureau of Reclamation. WATERIGHT is a multi-function, educational resource for irrigation water management. The site is designed for three audiences: agriculture, commercial turf growers, and homeowners. There is no charge to use WATERIGHT.


An important resource of the site is the Irrigation scheduling programming that helps users develop site-specific, seasonal irrigation schedules. WATERIGHT is connected to the California Irrigation Management Information System (CIMIS). These weather stations provide the scheduling routines with reference evapotranspiration data for specific areas.

WATERIGHT contains a series of Advisories and Tutorials covering various topics including:

  • Developing a water management plan
  • Energy use for pumping
  • Planning furrow, sprinkler, or micro irrigations
  • Distribution uniformity and irrigation efficiency
  • Non-point source pollution
  • Water budget and graphical/sensor-based irrigation scheduling