|The following is based on information from Van Buren design documents and is not canon.|
Get them a Geiger Counter was going to be a quest in Van Buren, the canceled Fallout 3 by Black Isle Studios. It is located at Denver.
Get Jimmy T or Porter a Geiger counter. This would solve the problem of the radioactive lizards, and would help them steer clear of high-rad areas in town.
Character type completion breakdown
Science Boy - Might be able to make a Geiger counter.