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By the Numbers
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Working with El Porvenir in Nicaragua, several ‘biosand water filters’ were built and installed in the homes of families who do not have any access to well or city water. The filter systems are built using layered sand, gravel and charcoal in order to filter out impurities from stream or rain water. Essentially, this is a simplified version of what our planet does naturally to recharge deep aquifers and well water! The team members of El Porvenir work with the families to provide education on the use and maintenance of the system in order to ensure they will continue to have clean water in their homes. This project was made possible by the sixth grade science classes of the School at Columbia University (2014-15).