The interruption of the local controller’s workflow due to the necessitated management of a go-around of a third airplane that was approaching a different runway. Contributing to the incident was: 1) the controller’s decision to continue the landing of ASH5826, likely without a re-assessment of its distance from the departing SKW5326, after the interruption, and 2) the lack of surface detection equipment at the Bob Hope Airport to aid the controller with traffic management.