The document discusses a project to provide bio sand water filters to 300 communities with over 1 million people in Lurigancho Chosica district in Peru. The water from the Rimac River that communities rely on is contaminated. The project will supply, install, and provide training on bio sand water filters, which can provide clean water for 10-15 people per day with no electricity or maintenance needed. The filters have been successful in reducing child diarrhea cases and removing bacteria in initial pilot communities.