1 / 16

GROUND WATER

GROUND WATER. GROUND WATER. Q. What is ground water? A. The water which is found underneath the Earth’s surface. Most people get their fresh water from a ground water source. AQUIFER. Earth materials which allow the free movement of ground water through it. High Plains Aquifer.

zamir
Download Presentation

GROUND WATER

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. GROUND WATER

  2. GROUND WATER Q. What is ground water? A. The water which is found underneath the Earth’s surface.

  3. Most people get their fresh water from a ground water source

  4. AQUIFER Earth materials which allow the free movement of ground water through it

  5. High Plains Aquifer • The High Plains aquifer, also known as the Ogallala aquifer, is the Nation’s most heavily used groundwater resource.  • The majority is used for irrigation, but nearly two million people also depend on the aquifer as a source of drinking water. • The eight states that use water from the High Plains aquifer include Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming.

  6. AQUITARD • Confining material • Earth materials which do not allow the free movement of ground water through it

  7. EARTH MATERIALS • Gravel • Sand • Sandstone • Soil • Clay • Solid rock Aquifer Materials Aquitard materials

  8. FACTORS THAT AFFECT GROUND WATER MOVEMENT • Compaction of Earth materials • Grain size of Earth material • The diameter of the pores

  9. POROSITY AND PERMEABILITY POROSITY: The amount of open pore (air) space in a solid material % POROSITY= VOLUME OF AIR SPACE X 100 VOLUME OF MATERIAL PERMEABLE: The ability of a liquid to move through a solid material.

  10. EXAMPLE The volume of a given material is 250ml. The amount of water poured into the beaker is 100ml. What is the % porosity?

  11. EXAMPLE Volume of air space = 100ml Volume of material = 250ml Vol of air X 100 -> 100ml X 100 = 40% Vol of mat. 250ml

  12. Zone of Aeration ZONE OF AERATION Aquifer materials that contains mostly air.

  13. Zone of Saturation ZONE OF SATURATION Aquifer material that is filled with water

  14. Water Table WATER TABLE The border between the zone of saturation and aeration

  15. Recharge Site RECHARGE SITE An area where water is entering the aquifer

  16. Discharge Site DISCHARGE SITE A location where ground water is leaving the aquifer (e.g. river, lake, spring, or well)

More Related