Place and detonate explosives to demolish structures or to loosen, remove, or displace earth, rock, or other materials. They perform specialized handling, storage, and accounting procedures. Includes seismograph shooters.

Operate a variety of drills such as rotary, churn, and pneumatic to tap sub surface water and salt deposits, to remove core samples during mineral exploration or soil testing, and to facilitate the use of explosives in mining or construction. They use explosives. Includes horizontal and earth boring machine operators

Operate equipment to increase oil flow from producing wells or to remove stuck pipe, casing, tools, or other obstructions from drilling wells. They also perform similar services in mining exploration operations. Includes fishing tool technicians.

Set up or operate a variety of drills to remove underground oil and gas, or remove core samples for testing during oil and gas exploration.

Rig drilling equipment and operate pumps to circulate mud through drill hole.

Perform a variety of activities to weatherize homes and make them more energy efficient. Their duties include repairing windows, insulating ducts, and performing heating, ventilating, and air conditioning (hvac) work. They perform energy audits and advise clients on energy conservation measures.

Install or repair solar energy systems designed to collect, store, and circulate solar heated water for residential, commercial or industrial use.

Lay out, cut, and place segmental paving units. Includes installers of bedding and restraining materials for the paving units.

Clean and repair septic tanks, sewer lines, or drains. They patch walls and partitions of tank, replace damaged drain tile, or repair breaks in underground piping.

Lay, repair, and maintain track for standard or narrow gauge railroad equipment used in regular railroad service or in plant yards, quarries, sand and gravel pits, and mines. Includes ballast cleaning machine operators and railroad bed tamping machine operators.