California Water Science Center (CAWSC) - San Bernardino Valley Optimal Basin Management (OBM)

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San Bernardino Optimal Basin Management

Welcome to the U.S. Geological Survey (USGS) San Bernardino Optimal Basin Management website. This site provides hydrologic data collected or compiled by the USGS in the San Bernardino area; some additional data may be available from the USGS database National Water Information System (NWIS).

Project Chief: Wes Danskin
Phone: 619-225-6132


Model is a broad term encompassing many different aspects of investigating science. In general conceptual models are used to define the general characteristics and components of a physical system and how they interrelate. A mathematical or numerical model takes those concepts, adds the governing equations, and creates a rigorous mathematical framework where the physics of the system must be honored, and hopefully the characteristics of the conceptual model are retained.