The NAVRESFAC took over the Multi-Purpose building as headquarters and administrative offices as well as classrooms and conference rooms for visiting reserve units conducting weekend drills.
The NavRESFAC had a staff of a commanding officer and about 6 petty officers. They were responsible for administration, logistics, maintenance and security. There were no personnel assigned to support berthing and messing, so the staff contracted those functions to local motels and restaurants.
As the largest and only active unit, MIUW-604 took over the Auxiliary Building as its headquarters, command center and storage facilities for operational equipment, habitiability supplies and vehicles.
There were other reserve units that drilled at NAVRESFAC Lewes: Fleet Hospital Detachemt-500, Shore Intermediate Maintenance Detachment-104 and a Volunteer Training Unit.