1. Class 27: Water in El Paso

2. Class updates:  Reading: Section 11.6 Today’s topics:  Hydrology  Ground water  Drinking water Class 27: Water in El Paso

3. Why use the floodplain? The river

4. Something to think about:  will the river often overflow its levees?  besides the river, where else could floodwater come from? Flooding

5. Flooding II

6. Flooding III

7. Features in the area

9. Groundwater & water table

10. Porosity

11. Groundwater

12. Saturation

13. Storing water

14. Aquifers near El Paso

15. Usage: –El Paso--155 acre-feet per person per year Best in the US –Ciudad Juárez--75 acre-feet per person per year 3 sources for water: –Rio Grande River (less than 20%) –Hueco Bolson + Mesilla Bolson (rest) MX currently draws more than US: –Will run out ~2025 Desalination plant w/ Fort Bliss Water use in El Paso

16. Groundwater flow

17. Recharge & discharge

18. Springs

19. Water wells

20. Problems with wells

21. Landscape by dissolution

22. Sinkholes

23. Caves

24. Acidic groundwater

25. Environmental problems

26. Environmental problems II

27. Other uses: geothermal energy