Why is stormwater treated?

Answer 1

Pathogens or disease-causing organisms are

present in sewage. These need to be got rid of

before the sewage can be released back into the

environment. The goal is to reduce or remove

organic matter, solids, nutrients, disease-causing

organisms and other pollutants from the

wastewater.

Answer 2

Though 80% of the earth's surface is covered with water, only 1% of it is fresh water. It's only 1% that we can use for drinking, irrigating, washing etc. So, it's very important that we conserve water. In fact fresh water levels in many parts of the world have dropped alarmingly. For instance if you go to http://www.bewaterwise.com/ you will see a water gauge indicating how much the water level has dropped since July 2006 in Southern California. We need to make a conscious effort to stop the water level dropping any further. Given below is a link to some simple water conservation tips. Check them out and also spread the word around.

Without water conservation, we will eventually run out of water. And we all need water to survvive. Humans, plants and animals alike all need water to live.

Answer 3

Stormwater is treated to remove pollutants such as oil, sediment, heavy metals, and other contaminants that can harm the environment, aquatic life, and public health. Treatment helps to improve water quality and reduce the negative impacts of stormwater runoff on streams, rivers, lakes, and oceans.

Answer 4

- Avoiding the pollution of the environmement

- Recovery of useful substances

- Recycling of water for successive uses

Answer 5

Because as it flows over the ground, it'll become mixed with any contaminants on the ground.. oils, chemicals, etc.