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- 2. What has happened to groundwater levels in the area investigated as time has progressed? What were
- 3. What sources other than agriculture could be contributing to the decline in groundwater? How do these
- 4. Groundwater Depletion Regions where groundwater is pumped faster than it can be recharged begin to see
- 5. Agriculture Using the maps below, which regions of the United States would be best for growing
- 6. Groundwater Depletion Agriculture is the main consumer of groundwater in the US. Most agricultural land is
- 7. Groundwater Depletion Some aquifers are overused because water is pumped out faster than it is recharged.
- 8. Hydrologic Cycle Water table: The “surface” of the material that is saturated with groundwater in a
- 9. Ogallala Aquifer The Ogallala Aquifer supplies about one-third of the irrigation water in the United States.
- 10. Groundwater Depletion Where is the Ogallala Aquifer on these maps? Describe the trends around this aquifer.
- 11. What factors can you attribute to the declining groundwater from north to south? What factors can
- 12. What negative impacts might these groups be concerned about? The Keystone Pipeline currently sends 590,000 barrels
- 13. Solutions for Groundwater Depletion What are some ways to reduce groundwater depletion? Conserving water in urban
- 14. Water Conservation Activity
- 15. Predict the change in US agricultural groundwater withdrawal from 2005-2010. Irrigated land area increased, groundwater withdrawal
- 16. Divide into pairs. Student “A” reads the original Ogallala Aquifer Initiative document. Student “B” reads the
- 17. Analyzing Data US groundwater withdrawals for irrigation = 49.5 billion gallons per day Groundwater withdrawal from
- 18. Again, predict the change in agricultural groundwater withdrawal from 2005-2010. Irrigated land area increased, groundwater withdrawal
- 19. On the basis of your readings: What is responsible for the decrease in groundwater withdrawal, even
- 20. What percentage of daily water withdrawn from the Ogallala Aquifer (16.96 billion gallons/day) would be needed
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