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Hydrologic Reports

Environmental Data Management Section publishes a Hydrologic Data Report containing data dating back as far as the late 1800s. New data is added each year from reporting (via radio telemetry) rain gages, recording non-reporting rain gages, and non-recording cooperative observer (maintained by volunteers) rain gages, and reporting water level stations.

These hydrologic data, coupled with satellite and radar tracking of storms, are used for flood detection, allowing maintenance crews to be assigned to potential problem areas. The result is a better allocation of resources and enhanced public safety. The data are also used for a variety of other municipal purposes by the private sector.

The Hydrocycle image

If there are any questions regarding the details of a document, or to obtain a hard copy or other alternative formats of the original document, or to have a document read to you, please contact the OC Public Works offices, Monday through Friday, 7:00 am to 5:00 pm PST, at 2301 N. Glassell St., Orange, CA, 92865 by email at OC Watersheds, or by phone at (714) 955-0600.