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Water Demand Study


In supporting its mission to provide a reliable water supply to Santa Clara County, Valley Water engages long range water supply planning to identify management and investment strategies to meet county-wide demand. An important element of water supply planning is an accurate projection of future water demands. Currently, Valley Water is updating its demand projection approach and developing a new demand model to forecast the county-wide water demand.

The model development effort includes reviewing the demand modeling approaches at Valley Water’s peer agencies; identifying potential demand models and approaches to meet valley water requirements; and developing a demand model to analyze baseline and future water demand. Using the demand model developed through this effort, Valley Water will project demands out to support several planning efforts, including:

  • 2021 Urban Water Management Plan (UWMP);
  • Monitoring of and updates to the Water Supply Master Plan;
  • Inputs to Valley Water’s water supply planning model; and
  • Evaluating conservation programs and capital projects.

The new demand model will be used as a planning tool to support periodic updates of Valley Water’s demand projections as new data and information become available and the planning horizon is extended.

The forecasted rates, water supply and demand and other information contained herein are prepared for Valley Water’s internal discussion and/or planning purposes.   Such forecasts are based on certain assumptions that are subject to change at any time, and are subject to a variety of uncertainties that could cause actual results to be materially different.  The information herein is not intended to be used by investors or potential investors in considering the purchase or sale of Valley Water’s bonds, notes or other obligations and investors and potential investors should rely only on information filed by the District on the Municipal Securities Rulemaking Board’s Electronic Municipal Market Access System for municipal securities disclosures and Valley Water’s Investor Relations website, maintained on the World Wide Web at and, respectively.