The employee is frequently required to stand, walk, climb stairs or ladders, sit, use hands to finger, handle or feel, reach with hands and arms, climb or balance, stoop, kneel, crouch, or crawl and taste or smell. Veolia in North America is the top-ranked environmental company in the United States for three consecutive years, and the country's largest private water operator and technology provider as well as hazardous waste and pollution treatment leader.