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U.S. Department of the Interior U.S. Geological Survey

A National Water Census. You Can’t Manage What You Don’t Measure…. U.S. Department of the Interior U.S. Geological Survey. Water is critical to sustain and support:. Life Ecosystems Economy. You Can’t Manage What You Don’t Measure…. How much water do we have in the U.S ?

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U.S. Department of the Interior U.S. Geological Survey

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  1. A National Water Census You Can’t Manage What You Don’t Measure… U.S. Department of the Interior U.S. Geological Survey

  2. Water is critical to sustain and support: • Life • Ecosystems • Economy You Can’t Manage What You Don’t Measure…

  3. How much water do we have in the U.S? Is the amount changing over time?

  4. What is a water census?

  5. Account for water with a “budget”

  6. A Nationwide System to deliver water availability information • Ecological Needs • Water Withdrawals • Return Flows • Consumptive Uses • Run-of-the-River Uses • Precipitation • Evapotranspiration • Storage in Reservoirs, Lakes, Snow and Ice • River Flow • Groundwater • Recharge rates • Water level in aquifers

  7. Envision a seamless coverage of information for each component

  8. USGS will provide this for all components Precipitation Runoff Baseflow Evapotranspiration Recharge Surface Storage

  9. Can our water sustain important habitats? A water census will allow managers to balance healthy habitats and human water use

  10. Can freshwater supplies meet long-term needs? A water census will identify how much water is available for renewable energy development.

  11. Enhancing the Nation’s Water Use Information

  12. Why Now? Competition is increasing, climate is changing, water in storage is declining

  13. What will a Census provide us? It will provide State, local and Regional water professionals the Information they need to plan for and allocate water resources.

  14. Are we making progress on the Water Census?

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