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Water Resources

  Other Realtime Data FEMA Flood Insurance
  Online Data San Timoteo LOMR
  Data Requests Rate Map

The name "Water Resources" may be a bit misleading in regards to some services such as water quality reports, water meter and water usage information, and other domestic water issues.  These areas are covered by local water companies and other agencies.

Special Projects Section

The Special Projects section analyzes work of consultants both for the District and private developers. This section looks into new technologies that deal with prediction of channel and floodplain flows to see how they fit with historical events. Methodology of floodplain analysis is endorsed and in fact, originated by, the Army Corps of Engineers.

Master Planning Section

The Master Planning section provides the means for floodplain management as the name implies. While their work parallels that of special projects it covers much larger areas and hence, requires less precision than that which would be required for a special project from which facility design will depend.

Hydrology Section

The Hydrology Section collects a variety of climatological data from around the County.  Precipitation, stream flow, and temperature comprise most of the available data, though not all of it online.  This data is stored in a specialized database and is used in flood control storm warning, structure and channel design, runoff calculations, environmental studies, and as supporting evidence in lawsuits. Well data is no longer being collected in the section, and all our previous ground water data has been turned over to the Water Resources Institute

Most of our summarized data is available for downloading.  There are more specialized products that can be requested.  There is also quite a bit of data that is in our database but is not online that can also be requested.  As of Feb 2001 all our databases were converted over to HYDSTRA.  This is a product that is specifically designed for environmental data and is capable of producing many different products in a variety of formats.

Hydrology Manual (pdf)
Addendum to Hydrology Manual (pdf)
Addendum FAQ's (pdf)
AMC Map (pdf)


While all attempts are made to maintain field equipment and properly collect and process climatological data, the county cannot be held liable for errors in the data collection and archiving processes. The advent of automatic recorders has greatly improved the quality of current data. We attempt to operate the data collection and archiving processes in a manner as accurate as possible and reserve the right to update and correct the databases as needed to accomplish this.

For Information Please Contact:

Chief - Ken Eke
(909) 387- 8213
Business Hours:
Monday - Friday
8 AM - 5 PM

Copyright 2007. All rights reserved. Department of Public Works, County of San Bernardino, California