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Because it evaporates or seeps into the ground and is no longer in a useful form any more. That's why it's a "waste"ful use. > become irreversibly contaminated
by teh_klev 7y ago
Because it evaporates or seeps into the ground and is no longer in a useful form any more. That's why it's a "waste"ful use.
> become irreversibly contaminated
Well if you're spraying pesticides and fertilisers the water is likely being contaminated.
- pfdietz 7y agoAlso, minerals in the soil can contaminate drainwater. https://en.wikipedia.org/wiki/Selenium_pollution https://en.wikipedia.org/wiki/Selenium_pollution