The Waters of Life

 is a Fallout 3 quest. It is also an Xbox 360 achievement.

The quest is about reactivating the abandoned Project Purity, a water filtering facility set up 19 years before at Jefferson Memorial.

James quotes the following Bible passage in the tutorial: "I am Alpha and Omega, the beginning and the end. I will give unto him that is athirst of the fountain of the water of life freely."