Action Activity - bending, climbing, crawling, kneeling, reaching, squatting, stooping; Motion Activity - simple and firm grasping; Hearing Activity - in noisy areas, on radio, behind themselves, and equipment alarms; Speaking Activity - in person, on a radio, on the phone, and on a cell; Vision - may be required to operate a motor vehicle, operate machinery, distinguish colors, have depth perception and peripheral vision. Four (4) years of experience in commercial, institutional, or industrial custodial work, including one year of direct supervision of unskilled or semi-skilled workers or laborers engaged in grounds or facilities maintenance or custodial activities, or an equivalent combination of training and experience as determined by the department head at the time of recruitment.