Water Beggars

 refers to an unmarked and repeatable quest in Fallout 3.

A lot of Wastelanders need Purified Water. Giving them this gives you positive Karma (+50). Denying them water causes them to die at the next map change, even if they were given Purified Water before. They do not die if you do not explicitly tell them to find their own water, however, and their death incurs no Karma loss for you.

NPCs and Locations

 * Micky, outside Megaton
 * Carlos, outside Rivet City
 * Willy, outside Tenpenny Tower
 * Ben Canning, Capital Wasteland

Reward

 * good Karma (50)