UMSL Custodial Services provides only the following routine services in laboratory areas:
Custodial workers may not enter or work in a radioactive laboratory without a trained user present.
Custodial Services may also perform routine removal and replacement of the sealer on tile floors at approximately annual intervals. When this function is scheduled, the responsible Principal Investigator must assure that all physical, chemical, radioactive, and biological hazards are removed from the floor and from adjacent benchtops and similar locations where they might endanger the workers.
UMSL custodial workers are not to clean bench tops, sinks, or laboratory equipment of any type. UMSL custodial workers must never be involved in the cleanup of radioactive spills or other incidents.
Laboratory personnel must be aware that they must take every reasonable precaution to avoid inappropriate actions by any UMSL employees, including but not limited to the following precautions: