By Zinnah R. Larson

What is groundwater

Groundwater is when water slowly makes its way through rocks, soil or sand underneath the ground. It is caused when water is soaked through Earth's surface.

Example of groundwater

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It's called groundwater!

Porosity vs. Permeability

Porosity has t o do with the amount of space in between soil particles. Permeability is when liquid can pass through a certain thing.

Water Table Diagram

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There are two types of aquifers. There is an unconfined aquifer and confined aquifer. For an unconfined aquifer, water flows freely, while for a confined aquifer, water cannot flow.

Porosity and Permeabiltiy

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The Effect of Depleting our Groundwater Supply

A lot of pumping can lower the groundwater table, and cause wells to no longer be able to reach groundwater. When groundwater is overused, the lakes, streams, and rivers connected to groundwater can no longer have the amount of water it needs.

Excessive pumping in coastal areas can cause saltwater to move inland and upward. This can resulting in saltwater contamination of the water supply.

Land subsidence occurs when there is a loss of support below ground. This is most often caused by human activities, mainly from the overuse of groundwater, causing the soil to collapse, compact, and drop.

Over 50% of the United States population depends on groundwater. Because man-made materials-gasoline, oil, road salts and chemicals- get into the groundwater, it causes it to become unsafe and unfit for human use.

California is a good example of this. Some part is experiencing snow storms, flooding, and droughts. . One reason is because it's population is so large.

Goundwater Contamination

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Porosity and Permeability

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