Locks, unlocks, and secures classrooms, buildings and gates; sets and disarms security alarms as assigned and authorized; Dustmops or sweeps classrooms, offices, stairways, floors, restrooms, and other areas; Wetmops classrooms, stairways, hall floors, gym floors, offices, restrooms, kitchens, building entrances and other areas; Vacuums and shampoos carpeted surfaces using power equipment including extractor; Cleans and disinfects restrooms and locker rooms and their components such as showers, toilets, urinals, washbasins, dispensers, stall walls, and trash containers; Empties wastebaskets, gathers and dumps trash; Strips, waxes, buffs and polishes floor surfaces; Restocks restroom dispensers including toilet paper, paper towels, soaps and related items; collects change from dispensers; Dusts classrooms, offices, baseboards, walls, window frames, glass display cases, pictures and frames, tables, bookshelves and other furniture and equipment; Mixes disinfectants and other cleaning solutions, and maintains custodial supplies, washing mops and rags, changing vacuum belts and bags, etc. Assigns and oversees the work of student or court-ordered community service workers; Cleans windows and other glass; Cleans up spills and removes gum; Moves, arranges, stacks and stores furniture, mats and related; Wipes and cleans chalkboards and chalk trays; stocks chalk for instructors; Removes or paints over graffiti; Cleans entry and walkway areas adjacent to buildings; operates gas and electric blowers; hoses sidewalks and operates pressure washers; may perform limited groundskeeping at satellite locations; Drives trash to dumpsters using motorized carts or pick up trucks; transports/delivers materials and supplies as needed; Covers, uncovers and cleans swimming pools; Uses ladders to change light bulbs and access overhead cleaning tasks; may perform other light maintenance tasks; Notifies supervisor or others of maintenance and repair needs, safety hazards, supplies and equipment needed, and other matters; May supervise student helpers.