Essential Function Statements - Essential duties may include, but are not limited to, the following:Cleans assigned school facilities (e.g., classrooms, offices, restrooms, multipurpose rooms, grounds, cafeteria, storage areas, etc.) for the purpose of maintaining a sanitary, safe and attractive environment. Physical Conditions: Essential and marginal functions may require maintaining physical condition necessary for moderate to extremely heavy carrying, lifting, and pushing; reaching, climbing in high, precarious places, crawling, sitting, kneeling, standing and walking for extended periods of time; operation of motor vehicles; and subject to random drug testing.