Water is essential for all life and covers 70% of the Earth's surface, mostly in oceans. 1.6% is underground in aquifers and a tiny amount is found in plants, animals, and manufactured goods. Water recycling decreases extraction from dwindling sources and pollution of sensitive ecosystems. It can also be used to create or improve wetlands while reducing pollution by leaving it at treatment plants. Recycled water has been safely used for many non-potable purposes and its uses are growing as treatment technology advances make indirect potable reuse possible.

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Water is a common substance that is essential to all
known forms of life. Water covers 70 percent of the
planet’s surface. On the planet Earth water is mostly
found in oceans and large bodies of
water. 1.6percent of the earth’s water is found
underground in aquifers. A tiny percentage of the
world’s water is found in the bodies of plants and
animals and in manufactured goods.

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Water recycling decreases the extraction of water form sources that may
be dwindling and may stop being viable as habitats for valuable and
endangered wildlife.
Recycling wastewater can decrease the discharge of effluents that may
damage and pollute the ecosystems of the sensitive bodies of water.
Recycled water can be used to create new wetlands or to enhance and
improve the quality of existing ones.
Water recycling can reduce and prevent pollution by leaving damaging
pollutants at the treatment plant.

5. Recycling water has been established as an effective and safe
way to provide non-potable water for a wide range of
industrial, home, and agricultural use. The non-potable
utilization of recycled water can only continue to grow.
Technological advances in
wastewater treatment and health
studies in the use of indirect
potable water have indicated the
possible planned indirect potable
reuse might soon become feasible.