Can someone explain water restrictions to me?

My city is experiencing Stage 2 water restrictions.
Could you please explain the following?

1. What the Aquifer level has to be for each stage to take affect.
2. What each stage-limit entails.
3. Do restrictions differ from state-to-state?
4. Is it a necessity to water your yard, other than it looking nice? Does it mess with foundation(or whatever)?
5. How many stages are there?
6. Can the aquifer run completely out of water? What would you do then?

Answers:
In times of little rain, local governments often restrict the use of water from the public water departments. It would have helped if you had mentioned the name of the city. Restrictions take several forms (often called Stages or Levels). These also vary widely.

The rules differ from water department to water department and even within the same department over time. The system is flexible to ensure that there is enough water for health reasons, but little for recreation or keeping plants in the yard alive.

Properly built homes have no need to "water the yard."

Seldom does a good aquifier run completely out of water, but often the levels get low enough to force people to move. This is what happened during the great "dust bowl."

You might find the sites below interesting:

Other answers:
You need to contact your local water plant for the info. Yes, it differs state to state, probably county to county as well.
You need to contact your local water plant for the info. Yes, it differs state to state, probably county to county as well.
1.ask your local water dept/company
2.no clue
3..they differ from local.
4. it sure helps it look nice, have the water drain away from your foundation....or could cause trouble.
5..no clue
6.yes, you would do without!
7. live in country, have a deep well.
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