All contributions that support the cause ‘Clean Drinking Water’ are donated to the Evidence Action organization. They are a 501(c)3 registered non-profit based in Washington DC. Here are their details:

We calculated Evidence Action’s impact based on impact calculations made by Charity Navigator, we have found that $4,285,899 total costs provide 9,144,994 person-years of clean water, leading to $0.47 providing drinking water to a person to a year.

We have also found that: