While performing the duties of this job, the employee is frequently required to balance, stoop, kneel, bend, crouch, crawl, sit, stand, walk, talk, and hear, use hands and fingers to handle, feel, or operate objects, tools, or controls and reach with hands and arms. Ability to perform heavy manual tasks for extended periods of time; Ability to work safely; Ability to communicate effectively verbally and in writing; Ability to establish and maintain effective working relationships with employees, volunteers, other departments and the public.