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

Water-Quality Model

Water-quality models include both lumped and transport models. The lumped models assume all chemical constituents are lumped together, and often are used to identify equilibrium conditions. The transport models assume that water is transported through a medium, like an aquifer, and chemical changes occur along that flow path. Transport models can be used to test the reasonableness of a geologic framework or groundwater flow model.