Last week on CBS Sunday Morning with Charles Osgood, correspondent Lee Cowan and producer Sari Aviv had a cover story about the efforts to get water to some parts of the Navajo Nation, where people live without running water. George McGraw, executive director of DigDeep, a non-profit trying to build a well there, was featured in the piece.

Building a well for the Navajo would cost upwards of $500,000. According to McGraw, since the piece aired Sunday, Aug. 16 he’s raised $550,000, with more coming in.

According to McGraw, the money raised from CBS Sunday Morning viewers will pay for a new well with additional donations used to buy fuel to a water delivery truck and build basic plumbing in some homes.

“The generosity of CBS Sunday Morning viewers will allow us to expand our work to other communities in need, until there’s no American family left there without water,” McGraw said, adding there’s still work to be done. “Smith Lake is just one community among many facing similar conditions. Almost 90,000 people on the Navajo Reservation don’t have safe, running water at home.” Here’s the story: