When.com Web Search

  1. Ad

    related to: is well water considered potable part of nature and one of the time series

Search results

  1. Results From The WOW.Com Content Network
  2. History of water supply and sanitation - Wikipedia

    en.wikipedia.org/wiki/History_of_water_supply...

    In Nepal the construction of water conduits like drinking fountains and wells is considered a pious act. [40] [41] A drinking water supply system was developed starting at least as early as 550 AD. [42] This dhunge dhara or hiti system consists of carved stone fountains through which water flows uninterrupted from underground sources. These are ...

  3. Commodification of water - Wikipedia

    en.wikipedia.org/wiki/Commodification_of_water

    Water is a basic need of life and presently, an estimated one billion persons do not have access to safe drinking water, and even more have inadequate sanitation. [5] Global institutions, including the United Nations, warn of the impact of a growing global population and the effects of climate change on the ability of people to access freshwater. [3]

  4. Improved water source - Wikipedia

    en.wikipedia.org/wiki/Improved_water_source

    An improved water source (or improved drinking-water source or improved water supply) is a term used to categorize certain types or levels of water supply for monitoring purposes. It is defined as a type of water source that, by nature of its construction or through active intervention, is likely to be protected from outside contamination, in ...

  5. Well - Wikipedia

    en.wikipedia.org/wiki/Well

    The quality of the well water can be significantly increased by lining the well, sealing the well head, fitting a self-priming hand pump, constructing an apron, ensuring the area is kept clean and free from stagnant water and animals, moving sources of contamination (pit latrines, garbage pits, on-site sewer systems) and carrying out hygiene ...

  6. Water resources - Wikipedia

    en.wikipedia.org/wiki/Water_resources

    Water resources are natural resources of water that are potentially useful for humans, for example as a source of drinking water supply or irrigation water. These resources can be either freshwater from natural sources, or water produced artificially from other sources, such as from reclaimed water or desalinated water (). 97% of the water on Earth is salt water and only three percent is fresh ...

  7. Drinking water - Wikipedia

    en.wikipedia.org/wiki/Drinking_water

    One litre of potable water is sold (into the customer's own bottle) for 1 baht. Diagram of water well types Simplified diagram of a water supply network. Potable water is available in almost all populated areas of the world, although it may be expensive, and the supply may not always be sustainable.

  8. Fresh water - Wikipedia

    en.wikipedia.org/wiki/Fresh_water

    Fresh water is not always potable water, that is, water safe to drink by humans. Much of the earth's fresh water (on the surface and groundwater) is to a substantial degree unsuitable for human consumption without treatment. Fresh water can easily become polluted by human activities or due to naturally occurring processes, such as erosion.

  9. Ecosystem service - Wikipedia

    en.wikipedia.org/wiki/Ecosystem_service

    An example for water purification as an ecosystem service is as follows: In New York City, where the quality of drinking water had fallen below standards required by the U.S. Environmental Protection Agency (EPA), authorities opted to restore the polluted Catskill Watershed that had previously provided the city with the ecosystem service of ...