Frequently Asked Questions (FAQ)

Do you still have a map site where all the rain gages are located and that tell you the percipitation by the hour and minute?

You may access our rain gages map site at

If you need more information, you may contact our Water Resources Division's Public Counter at (626) 458-6120.

rain WRD SWE hydrology sedimentation hydraulic hydrological wells groundwater rainfall conservation depth precipitation alert gauges stormwater engineering