Under the supervision, incumbents perform custodial services in keeping an office, building, or area office, clean and orderly; sweep, scrub, mop and wax floors; vacuum rugs and carpets; clean, dust, and polish cabinets, furniture, and woodwork; empty and clean waste receptacles; clean stairways, elevators, hallways, restrooms, offices, and lobbies; clean ceilings, walls, windows, window shades, and light fixtures; assist in moving and arranging furniture and equipment as required; polish metal work; turn out lights and lock doors and windows; refill lavatory and housekeeping supplies; replace light globes and tubes; operate scrubbers, buffers, waxers, and other equipment and machinery. California Relay Service: 1-800-735-2929 (TTY), 1-800-735-2922 (Voice) TTY is a Telecommunications Device for the Deaf, and is reachable only from phones equipped with a TTY Device.