He is a quarry worker foreman found at the road next to the Sloan mining camp. He has been to New Vegas once and he does not like it. He mentions having problems with Tyrone due to the fact that Tyrone owes him money, even going so far to threaten him in a note. His daughter Melissa Lewis is a member of the Great Khans and although he disapproves, he says that if it makes her happy, then he is happy.
ps3 Sometimes the player may find that Chomps has vanished from Sloan, despite the time of day or if the player fast travels to the town. If this is not due to a death (either by the player or a deathclaw), the player can find him again by doing the following... Standing in front of the mining office front door, turn so that your compass is between northwest and north. Walk forward (you are going past the pile of tires and to the left side of the Machine shop.) Chomps should be right in front of you/just behind the machine shop walking against a cliff wall. Due to the geography of this area, Chomps blends into the background and his radar icon seems to place him as the worker inside the machine shop meaning many players mistake his icon for the other non-player character. [verified]
ps3 Chomps Lewis may leave Sloan and head to Hidden Valley if bark scorpions appear in Sloan. He will remain there in the same spot, even after the player or himself kills the bark scorpions. [verified]