Ability and agility sufficient to operate valves and similar equipment, climb high ladders on water tanks, enter vaults and confined spaces, walk long distances over uneven terrain, lift up to 50 pounds from the ground to shoulder height, operate pavement breaking and pipeline repair equipment and tools, and generally perform heavy labor. Installs, maintains, and repairs machinery and equipment such as pumps, motors, generators, valves, chlorinators, engines, gates, process piping, etc., as may be required or related to the distribution, collection, handling, or treatment of potable or non-potable water and sewage.