The decrease in the amount of water which is available for use is termed aswater depletion. The excess use of water for agriculture, domestic purpose and wastage of water results in decrease in amount of water thus lead to water depletion.
Causes of water depletion:
Pollution of water sources
Improper water resources management
Shortcomings in the design and implementation of legislation and regulations, which address these problems.
Drought and changes in routine weather patterns