Job Duties Custom List 47-4031.00 — Fence Erectors
- Mix and pour concrete around bases of posts, or tamp soil into postholes to embed posts.
Occupations with related tasks Save Table: XLSX CSV
| Closely Related Tasks | All Related Tasks | Job Zone | Code | Occupation |
| 5 | 11 | 2 | 47-2053.00 | Terrazzo Workers and Finishers |
| 2 | 11 | 1 | 47-2051.00 | Cement Masons and Concrete Finishers |
| 2 | 7 | 2 | 47-2044.00 | Tile and Stone Setters 
|
| 2 | 5 | 2 | 47-2061.00 | Construction Laborers
|
| 2 | 4 | 1 | 47-3014.00 | Helpers--Painters, Paperhangers, Plasterers, and Stucco Masons |
| 2 | 3 | 2 | 47-4051.00 | Highway Maintenance Workers
|
| 2 | 2 | 1 | 47-5011.00 | Derrick Operators, Oil and Gas |
| 2 | 2 | 2 | 47-5012.00 | Rotary Drill Operators, Oil and Gas |
| 1 | 4 | 2 | 47-3011.00 | Helpers--Brickmasons, Blockmasons, Stonemasons, and Tile and Marble Setters |
| 1 | 4 | 2 | 47-2082.00 | Tapers |
| 1 | 4 | 2 | 47-2142.00 | Paperhangers |
| 1 | 4 | 2 | 47-2181.00 | Roofers |
| 1 | 3 | 1 | 47-2161.00 | Plasterers and Stucco Masons |
| 1 | 3 | 1 | 47-5071.00 | Roustabouts, Oil and Gas |
| 1 | 3 | 2 | 47-3016.00 | Helpers--Roofers |
| 1 | 3 | 2 | 47-2141.00 | Painters, Construction and Maintenance |
| 1 | 2 | 3 | 47-2022.00 | Stonemasons |
| 1 | 2 | 2 | 53-7061.00 | Cleaners of Vehicles and Equipment |
| 1 | 2 | 3 | 47-2152.04 | Solar Thermal Installers and Technicians |
| 1 | 2 | 2 | 49-9099.01 | Geothermal Technicians |
| 1 | 2 | 2 | 47-2031.00 | Carpenters |
| 1 | 1 | 2 | 47-2021.00 | Brickmasons and Blockmasons |
| 1 | 1 | 3 | 47-4041.00 | Hazardous Materials Removal Workers |
| 1 | 1 | 2 | 47-5023.00 | Earth Drillers, Except Oil and Gas |
| 1 | 1 | 2 | 47-5032.00 | Explosives Workers, Ordnance Handling Experts, and Blasters |
- Measure designated amounts of ingredients for terrazzo or grout, according to standard formulas and specifications, using graduated containers and scales, and load ingredients into portable mixer.
- Blend marble chip mixtures, place into panels, and push a roller over the surface to embed the chips.
- Mix cement, sand, and water to produce concrete, grout, or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine.
- Precast terrazzo blocks in wooden forms.
- Signal truck driver to position truck to facilitate pouring concrete and move chute to direct concrete on forms.
- Spread, level, or smooth concrete or terrazzo mixtures to form bases or finished surfaces, using rakes, shovels, hand or power trowels, hand or power screeds, or floats.
- Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth with a trowel.
- Mold expansion joints and edges, using edging tools, jointers, or straightedges.
- Wet concrete surface and rub with stone to smooth surface and obtain specified finish.
- Spread roofing paper on surface of foundation and spread concrete onto roofing paper with trowel to form terrazzo base.
- Produce rough concrete surface, using broom.
- Grind surfaces with a power grinder, or polish surfaces with polishing or surfacing machines.
- Cut metal division strips and press them into the terrazzo base for joints or changes of color to form designs or patterns or to help prevent cracks.
- Modify mixing, grouting, grinding, or cleaning procedures, according to type of installation or material used.
- Grind curved surfaces or areas inaccessible to surfacing machine, such as stairways or cabinet tops, with portable hand grinder.
- Wash polished terrazzo surface, using cleaner and water, and apply sealer and curing agent according to manufacturer's specifications, using brush or sprayer.
- Position and secure moisture membrane and wire mesh in preparation for pouring base materials for terrazzo installation.
- Fill slight grinding depressions with matching grout material and hand-trowel for a smooth, uniform surface.
- Clean installation site, mixing and storage areas, tools, machines, and equipment, and store materials and equipment.
- Sprinkle colored marble or stone chips, powdered steel, or coloring powder over surface to produce prescribed finish.
- Chip, scrape, or grind high spots, ridges, or rough projections to finish concrete, using pneumatic chisel, hand chisel, or other hand tools.
- Move terrazzo installation materials, tools, machines, or work devices to work areas, manually or using wheelbarrow.
- Clean chipped area, using wire brush, and feel and observe surface to determine if it is rough or uneven.
- Repair concrete by cutting out damaged areas, drilling holes for reinforcing rods, and positioning reinforcing rods, using power saw and drill.
- Build wooden molds, clamping molds around areas to be repaired, or setting up frames to the proper depth and alignment.
- Remove frames when the foundation is dry.
- Measure designated amounts of ingredients for terrazzo or grout, according to standard formulas and specifications, using graduated containers and scales, and load ingredients into portable mixer.
- Blend marble chip mixtures, place into panels, and push a roller over the surface to embed the chips.
- Mix cement, sand, and water to produce concrete, grout, or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine.
- Precast terrazzo blocks in wooden forms.
- Signal truck driver to position truck to facilitate pouring concrete and move chute to direct concrete on forms.
- Spread, level, or smooth concrete or terrazzo mixtures to form bases or finished surfaces, using rakes, shovels, hand or power trowels, hand or power screeds, or floats.
- Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth with a trowel.
- Mold expansion joints and edges, using edging tools, jointers, or straightedges.
- Wet concrete surface and rub with stone to smooth surface and obtain specified finish.
- Spread roofing paper on surface of foundation and spread concrete onto roofing paper with trowel to form terrazzo base.
- Produce rough concrete surface, using broom.
- Signal truck driver to position truck to facilitate pouring concrete, and move chute to direct concrete on forms.
- Mix cement, sand, and water to produce concrete, grout, or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine.
- Spread, level, and smooth concrete, using rake, shovel, hand or power trowel, hand or power screed, and float.
- Mold expansion joints and edges, using edging tools, jointers, and straightedge.
- Produce rough concrete surface, using broom.
- Apply hardening and sealing compounds to cure surface of concrete, and waterproof or restore surface.
- Operate power vibrator to compact concrete.
- Install anchor bolts, steel plates, door sills and other fixtures in freshly poured concrete or pattern or stamp the surface to provide a decorative finish.
- Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth, using trowel.
- Wet concrete surface, and rub with stone to smooth surface and obtain specified finish.
- Spread roofing paper on surface of foundation, and spread concrete onto roofing paper with trowel to form terrazzo base.
- Check the forms that hold the concrete to see that they are properly constructed.
- Set the forms that hold concrete to the desired pitch and depth, and align them.
- Monitor how the wind, heat, or cold affect the curing of the concrete throughout the entire process.
- Direct the casting of the concrete and supervise laborers who use shovels or special tools to spread it.
- Waterproof or restore concrete surfaces, using appropriate compounds.
- Chip, scrape, and grind high spots, ridges, and rough projections to finish concrete, using pneumatic chisels, power grinders, or hand tools.
- Cut out damaged areas, drill holes for reinforcing rods, and position reinforcing rods to repair concrete, using power saw and drill.
- Clean chipped area, using wire brush, and feel and observe surface to determine if it is rough or uneven.
- Build wooden molds, and clamp molds around area to be repaired, using hand tools.
- Sprinkle colored marble or stone chips, powdered steel, or coloring powder over surface to produce prescribed finish.
- Fabricate concrete beams, columns, and panels.
- Polish surface, using polishing or surfacing machine.
- Cut metal division strips, and press them into terrazzo base so that top edges form desired design or pattern.
- Push roller over surface to embed chips in surface.
- Apply muriatic acid to clean surface, and rinse with water.
- Signal truck driver to position truck to facilitate pouring concrete, and move chute to direct concrete on forms.
- Mix cement, sand, and water to produce concrete, grout, or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine.
- Spread, level, and smooth concrete, using rake, shovel, hand or power trowel, hand or power screed, and float.
- Mold expansion joints and edges, using edging tools, jointers, and straightedge.
- Produce rough concrete surface, using broom.
- Apply hardening and sealing compounds to cure surface of concrete, and waterproof or restore surface.
- Operate power vibrator to compact concrete.
- Install anchor bolts, steel plates, door sills and other fixtures in freshly poured concrete or pattern or stamp the surface to provide a decorative finish.
- Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth, using trowel.
- Wet concrete surface, and rub with stone to smooth surface and obtain specified finish.
- Spread roofing paper on surface of foundation, and spread concrete onto roofing paper with trowel to form terrazzo base.
- Mix, apply, and spread plaster, concrete, mortar, cement, mastic, glue or other adhesives to form a bed for the tiles, using brush, trowel and screed.
- Mix and apply mortar or cement to edges and ends of drain tiles to seal halves and joints.
- Apply mortar to tile back, position the tile, and press or tap with trowel handle to affix tile to base.
- Level concrete and allow to dry.
- Prepare surfaces for tiling by attaching lath or waterproof paper, or by applying a cement mortar coat to a metal screen.
- Spread mastic or other adhesive base on roof deck to form base for promenade tile, using serrated spreader.
- Brush glue onto manila paper on which design has been drawn and position tiles, finished side down, onto paper.
- Align and straighten tile using levels, squares, and straightedges.
- Finish and dress the joints and wipe excess grout from between tiles, using damp sponge.
- Cut and shape tile to fit around obstacles and into odd spaces and corners, using hand and power cutting tools.
- Determine and implement the best layout to achieve a desired pattern.
- Study blueprints and examine surface to be covered to determine amount of material needed.
- Measure and mark surfaces to be tiled, following blueprints.
- Lay and set mosaic tiles to create decorative wall, mural, and floor designs.
- Apply a sealer to make grout stain- and water-resistant.
- Measure and cut metal lath to size for walls and ceilings, using tin snips.
- Install and anchor fixtures in designated positions, using hand tools.
- Remove and replace cracked or damaged tile.
- Cut tile backing to required size, using shears.
- Remove any old tile, grout and adhesive using chisels and scrapers and clean the surface carefully.
- Cut, surface, polish, and install marble and granite or install pre-cast terrazzo, granite or marble units.
- Assist customers in selection of tile and grout.
- Prepare cost and labor estimates, based on calculations of time and materials needed for project.
- Select and order tile and other items to be installed, such as bathroom accessories, walls, panels, and cabinets, according to specifications.
- Build underbeds and install anchor bolts, wires, and brackets.
- Mix, apply, and spread plaster, concrete, mortar, cement, mastic, glue or other adhesives to form a bed for the tiles, using brush, trowel and screed.
- Mix and apply mortar or cement to edges and ends of drain tiles to seal halves and joints.
- Apply mortar to tile back, position the tile, and press or tap with trowel handle to affix tile to base.
- Level concrete and allow to dry.
- Prepare surfaces for tiling by attaching lath or waterproof paper, or by applying a cement mortar coat to a metal screen.
- Spread mastic or other adhesive base on roof deck to form base for promenade tile, using serrated spreader.
- Brush glue onto manila paper on which design has been drawn and position tiles, finished side down, onto paper.
- Mix ingredients to create compounds for covering or cleaning surfaces.
- Mix, pour, or spread concrete, using portable cement mixers.
- Dig ditches or trenches, backfill excavations, or compact and level earth to grade specifications, using picks, shovels, pneumatic tampers, or rakes.
- Smooth or finish freshly poured cement or concrete, using floats, trowels, screeds, or powered cement finishing tools.
- Provide assistance to craft workers, such as carpenters, plasterers, or masons.
- Tend pumps, compressors, or generators to provide power for tools, machinery, or equipment or to heat or move materials, such as asphalt.
- Lubricate, clean, or repair machinery, equipment, or tools.
- Signal equipment operators to facilitate alignment, movement, or adjustment of machinery, equipment, or materials.
- Read plans, instructions, or specifications to determine work activities.
- Measure, mark, or record openings or distances to layout areas where construction work will be performed.
- Clean or prepare construction sites to eliminate possible hazards.
- Load, unload, or identify building materials, machinery, or tools, distributing them to the appropriate locations, according to project plans or specifications.
- Position, join, align, or seal structural components, such as concrete wall sections or pipes.
- Perform site activities required of green certified construction practices, such as implementing waste management procedures, identifying materials for reuse, or installing erosion or sedimentation control mechanisms.
- Control traffic passing near, in, or around work zones.
- Install sewer, water, or storm drain pipes, using pipe-laying machinery or laser guidance equipment.
- Operate or maintain air monitoring or other sampling devices in confined or hazardous environments.
- Erect or dismantle scaffolding, shoring, braces, traffic barricades, ramps, or other temporary structures.
- Perform building weatherization tasks, such as repairing windows, adding insulation, or applying weather-stripping materials.
- Apply weather-stripping to reduce energy loss.
- Spray materials, such as water, sand, steam, vinyl, paint, or stucco, through hoses to clean, coat, or seal surfaces.
- Raze buildings or salvage useful materials.
- Mop, brush, or spread paints, cleaning solutions, or other compounds over surfaces to clean them or to provide protection.
- Position or dismantle forms for pouring concrete, using saws, hammers, nails, or bolts.
- Grind, scrape, sand, or polish surfaces, such as concrete, marble, terrazzo, or wood flooring, using abrasive tools or machines.
- Place, consolidate, or protect case-in-place concrete or masonry structures.
- Operate jackhammers or drills to break up concrete or pavement.
- Apply caulking compounds by hand or caulking guns to protect against entry of water or air.
- Tend machines that pump concrete, grout, cement, sand, plaster, or stucco through spray guns for application to ceilings or walls.
- Identify, pack, or transport hazardous or radioactive materials.
- Use computers or other input devices to control robotic pipe cutters or cleaners.
- Perform construction laborer duties at green building sites, such as renewable energy plants or wind turbine installations.
- Mix ingredients to create compounds for covering or cleaning surfaces.
- Mix, pour, or spread concrete, using portable cement mixers.
- Dig ditches or trenches, backfill excavations, or compact and level earth to grade specifications, using picks, shovels, pneumatic tampers, or rakes.
- Smooth or finish freshly poured cement or concrete, using floats, trowels, screeds, or powered cement finishing tools.
- Provide assistance to craft workers, such as carpenters, plasterers, or masons.
- Mix plaster, and carry plaster to plasterers.
- Pour specified amounts of chemical solutions into stripping tanks.
- Perform support duties to assist painters, paperhangers, plasterers, or masons.
- Supply or hold tools and materials.
- Clean work areas and equipment.
- Apply protective coverings, such as masking tape, to articles or areas that could be damaged or stained by work processes.
- Erect scaffolding.
- Fill cracks or breaks in surfaces of plaster articles or areas with putty or epoxy compounds.
- Smooth surfaces of articles to be painted, using sanding and buffing tools and equipment.
- Place articles to be stripped into stripping tanks.
- Remove articles such as cabinets, metal furniture, and paint containers from stripping tanks after prescribed periods of time.
- Mix plaster, and carry plaster to plasterers.
- Pour specified amounts of chemical solutions into stripping tanks.
- Perform support duties to assist painters, paperhangers, plasterers, or masons.
- Supply or hold tools and materials.
- Dump, spread, and tamp asphalt, using pneumatic tampers, to repair joints and patch broken pavement.
- Blend compounds to form adhesive mixtures used for marker installation.
- Haul and spread sand, gravel, and clay to fill washouts and repair road shoulders.
- Set out signs and cones around work areas to divert traffic.
- Flag motorists to warn them of obstacles or repair work ahead.
- Perform preventative maintenance on vehicles and heavy equipment.
- Drive trucks to transport crews and equipment to work sites.
- Erect, install, or repair guardrails, road shoulders, berms, highway markers, warning signals, and highway lighting, using hand tools and power tools.
- Clean and clear debris from culverts, catch basins, drop inlets, ditches, and other drain structures.
- Drive heavy equipment and vehicles with adjustable attachments to sweep debris from paved surfaces, mow grass and weeds, remove snow and ice, and spread salt and sand.
- Inspect, clean, and repair drainage systems, bridges, tunnels, and other structures.
- Remove litter and debris from roadways, including debris from rock and mud slides.
- Perform roadside landscaping work, such as clearing weeds and brush, and planting and trimming trees.
- Apply poisons along roadsides and in animal burrows to eliminate unwanted roadside vegetation and rodents.
- Measure and mark locations for installation of markers, using tape, string, or chalk.
- Paint traffic control lines and place pavement traffic messages, by hand or using machines.
- Apply oil to road surfaces, using sprayers.
- Inspect markers to verify accurate installation.
- Place and remove snow fences used to prevent the accumulation of drifting snow on highways.
- Dump, spread, and tamp asphalt, using pneumatic tampers, to repair joints and patch broken pavement.
- Blend compounds to form adhesive mixtures used for marker installation.
- Haul and spread sand, gravel, and clay to fill washouts and repair road shoulders.
- Control the viscosity and weight of the drilling fluid.
- Weigh clay, and mix with water and chemicals to make drilling mud, using portable mixers.
- Inspect derricks, or order their inspection, prior to being raised or lowered.
- Inspect derricks for flaws, and clean and oil derricks to maintain proper working conditions.
- Repair pumps, mud tanks, and related equipment.
- Set and bolt crown blocks to posts at tops of derricks.
- Listen to mud pumps and check regularly for vibration and other problems to ensure that rig pumps and drilling mud systems are working properly.
- Start pumps that circulate mud through drill pipes and boreholes to cool drill bits and flush out drill cuttings.
- Position and align derrick elements, using harnesses and platform climbing devices.
- Supervise crew members, and provide assistance in training them.
- Guide lengths of pipe into and out of elevators.
- Prepare mud reports, and instruct crews about the handling of any chemical additives.
- Clamp holding fixtures on ends of hoisting cables.
- String cables through pulleys and blocks.
- Steady pipes during connection to or disconnection from drill or casing strings.
- Control the viscosity and weight of the drilling fluid.
- Weigh clay, and mix with water and chemicals to make drilling mud, using portable mixers.
- Weigh clay, and mix with water and chemicals to make drilling mud.
- Dig holes, set forms, and mix and pour concrete, for foundations of steel or wooden derricks.
- Train crews, and introduce procedures to make drill work more safe and effective.
- Observe pressure gauge and move throttles and levers to control the speed of rotary tables, and to regulate pressure of tools at bottoms of boreholes.
- Count sections of drill rod to determine depths of boreholes.
- Push levers and brake pedals to control gasoline, diesel, electric, or steam draw works that lower and raise drill pipes and casings in and out of wells.
- Connect sections of drill pipe, using hand tools and powered wrenches and tongs.
- Maintain records of footage drilled, location and nature of strata penetrated, materials and tools used, services rendered, and time required.
- Maintain and adjust machinery to ensure proper performance.
- Start and examine operation of slush pumps to ensure circulation and consistency of drilling fluid or mud in well.
- Locate and recover lost or broken bits, casings, and drill pipes from wells, using special tools.
- Direct rig crews in drilling and other activities, such as setting up rigs and completing or servicing wells.
- Monitor progress of drilling operations, and select and change drill bits according to the nature of strata, using hand tools.
- Repair or replace defective parts of machinery, such as rotary drill rigs, water trucks, air compressors, and pumps, using hand tools.
- Clean and oil pulleys, blocks, and cables.
- Bolt together pump and engine parts, and connect tanks and flow lines.
- Remove core samples during drilling to determine the nature of the strata being drilled.
- Cap wells with packers, or turn valves, to regulate outflow of oil from wells.
- Line drilled holes with pipes, and install all necessary hardware, to prepare new wells.
- Position and prepare truck-mounted derricks at drilling areas specified on field maps.
- Plug observation wells, and restore sites.
- Lower and explode charges in boreholes to start flow of oil from wells.
- Weigh clay, and mix with water and chemicals to make drilling mud.
- Dig holes, set forms, and mix and pour concrete, for foundations of steel or wooden derricks.
- Mix mortar, plaster, and grout, manually or using machines, according to standard formulas.
- Provide assistance in the preparation, installation, repair, or rebuilding of tile, brick, or stone surfaces.
- Locate and supply materials to masons for installation, following drawings or numbered sequences.
- Remove damaged tile, brick, or mortar, and clean or prepare surfaces, using pliers, hammers, chisels, drills, wire brushes, or metal wire anchors.
- Erect scaffolding or other installation structures.
- Cut materials to specified sizes for installation, using power saws or tile cutters.
- Modify material moving, mixing, grouting, grinding, polishing, or cleaning procedures, according to installation or material requirements.
- Transport materials, tools, or machines to installation sites, manually or using conveyance equipment.
- Arrange or store materials, machines, tools, or equipment.
- Clean installation surfaces, equipment, tools, work sites, or storage areas, using water, chemical solutions, oxygen lances, or polishing machines.
- Move or position materials such as marble slabs, using cranes, hoists, or dollies.
- Remove excess grout or residue from tile or brick joints, using sponges or trowels.
- Apply grout between joints of bricks or tiles, using grouting trowels.
- Apply caulk, sealants, or other agents to installed surfaces.
- Correct surface imperfections or fill chipped, cracked, or broken bricks or tiles, using fillers, adhesives, or grouting materials.
- Mix mortar, plaster, and grout, manually or using machines, according to standard formulas.
- Provide assistance in the preparation, installation, repair, or rebuilding of tile, brick, or stone surfaces.
- Locate and supply materials to masons for installation, following drawings or numbered sequences.
- Remove damaged tile, brick, or mortar, and clean or prepare surfaces, using pliers, hammers, chisels, drills, wire brushes, or metal wire anchors.
- Mix sealing compounds by hand or with portable electric mixers.
- Spread and smooth cementing material over tape, using trowels or floating machines to blend joints with wall surfaces.
- Apply texturizing compounds or primers to walls or ceilings before final finishing, using trowels, brushes, rollers, or spray guns.
- Use mechanical applicators that spread compounds and embed tape in one operation.
- Spread sealing compound between boards or panels or over cracks, holes, nail heads, or screw heads, using trowels, broadknives, or spatulas.
- Press paper tape over joints to embed tape into sealing compound and to seal joints.
- Apply additional coats to fill in holes and make surfaces smooth.
- Seal joints between plasterboard or other wallboard to prepare wall surfaces for painting or papering.
- Sand or patch nicks or cracks in plasterboard or wallboard.
- Work on high ceilings, using scaffolding or other tools, such as stilts.
- Select the correct sealing compound or tape.
- Countersink nails or screws below surfaces of walls before applying sealing compounds, using hammers or screwdrivers.
- Remove extra compound after surfaces have been covered sufficiently.
- Install metal molding at wall corners to secure wallboard.
- Check adhesives to ensure that they will work and will remain durable.
- Sand rough spots of dried cement between applications of compounds.
- Mix sealing compounds by hand or with portable electric mixers.
- Spread and smooth cementing material over tape, using trowels or floating machines to blend joints with wall surfaces.
- Apply texturizing compounds or primers to walls or ceilings before final finishing, using trowels, brushes, rollers, or spray guns.
- Use mechanical applicators that spread compounds and embed tape in one operation.
- Mix paste, using paste powder and water, and brush paste onto surfaces.
- Apply adhesives to the backs of paper strips, using brushes, or dunk strips of prepasted wallcovering in water, wiping off any excess adhesive.
- Apply sizing to seal surfaces and maximize adhesion of coverings to surfaces.
- Apply thinned glue to waterproof porous surfaces, using brushes, rollers, or pasting machines.
- Smooth strips or sections of paper with brushes or rollers to remove wrinkles and bubbles and to smooth joints.
- Trim rough edges from strips, using straightedges and trimming knives.
- Trim excess material at ceilings or baseboards, using knives.
- Check finished wallcoverings for proper alignment, pattern matching, and neatness of seams.
- Mark vertical guidelines on walls to align strips, using plumb bobs and chalk lines.
- Cover interior walls and ceilings of rooms with decorative wallpaper or fabric, using hand tools.
- Measure and cut strips from rolls of wallpaper or fabric, using shears or razors.
- Place strips or sections of paper on surfaces, aligning section edges and patterns.
- Fill holes, cracks, and other surface imperfections preparatory to covering surfaces.
- Measure surfaces or review work orders to estimate the quantities of materials needed.
- Smooth rough spots on walls and ceilings, using sandpaper.
- Set up equipment, such as pasteboards and scaffolds.
- Remove old paper, using water, steam machines, or solvents and scrapers.
- Staple or tack advertising posters onto fences, walls, billboards, or poles.
- Remove paint, varnish, dirt, and grease from surfaces, using paint remover and water soda solutions.
- Apply acetic acid to damp plaster to prevent lime from bleeding through paper.
- Mix paste, using paste powder and water, and brush paste onto surfaces.
- Apply adhesives to the backs of paper strips, using brushes, or dunk strips of prepasted wallcovering in water, wiping off any excess adhesive.
- Apply sizing to seal surfaces and maximize adhesion of coverings to surfaces.
- Apply thinned glue to waterproof porous surfaces, using brushes, rollers, or pasting machines.
- Mop or pour hot asphalt or tar onto roof bases.
- Cement or nail flashing strips of metal or shingle over joints to make them watertight.
- Glaze top layers to make a smooth finish or embed gravel in the bitumen for rough surfaces.
- Apply gravel or pebbles over top layers of roofs, using rakes or stiff-bristled brooms.
- Inspect problem roofs to determine the best repair procedures.
- Remove snow, water, or debris from roofs prior to applying roofing materials.
- Set up scaffolding to provide safe access to roofs.
- Estimate materials and labor required to complete roofing jobs.
- Install partially overlapping layers of material over roof insulation surfaces, using chalk lines, gauges on shingling hatchets, or lines on shingles.
- Cut felt, shingles, or strips of flashing to fit angles formed by walls, vents, or intersecting roof surfaces.
- Apply plastic coatings, membranes, fiberglass, or felt over sloped roofs before applying shingles.
- Install, repair, or replace single-ply roofing systems, using waterproof sheet materials such as modified plastics, elastomeric, or other asphaltic compositions.
- Attach roofing paper to roofs in overlapping strips to form bases for other materials.
- Cover roofs or exterior walls of structures with slate, asphalt, aluminum, wood, gravel, gypsum, or related materials, using brushes, knives, punches, hammers, or other tools.
- Waterproof or damp-proof walls, floors, roofs, foundations, or basements by painting or spraying surfaces with waterproof coatings or by attaching waterproofing membranes to surfaces.
- Apply reflective roof coatings, such as special paints or single-ply roofing sheets, to existing roofs to reduce solar heat absorption.
- Apply alternate layers of hot asphalt or tar and roofing paper to roofs.
- Install vapor barriers or layers of insulation on flat roofs.
- Cover exposed nailheads with roofing cement or caulking to prevent water leakage or rust.
- Smooth rough spots to prepare surfaces for waterproofing, using hammers, chisels, or rubbing bricks.
- Install attic ventilation systems, such as turbine vents, gable or ridge vents, or conventional or solar-powered exhaust fans.
- Install skylights on roofs to increase natural light inside structures or to reduce energy costs.
- Install solar roofing systems that have energy-collecting photovoltaic panels built into roofing membranes, shingles, or tiles.
- Spray roofs, sidings, or walls to bind, seal, insulate, or soundproof sections of structures, using spray guns, air compressors, or heaters.
- Attach solar panels to existing roofs, according to specifications and without damaging roofing materials or the structural integrity of buildings.
- Punch holes in slate, tile, terra cotta, or wooden shingles, using punches and hammers.
- Apply modular soil- and plant-containing grids over existing roof membranes to create green roofs.
- Install layers of vegetation-based green roofs, including protective membranes, drainage, aeration, water retention and filter layers, soil substrates, irrigation materials, and plants.
- Mop or pour hot asphalt or tar onto roof bases.
- Cement or nail flashing strips of metal or shingle over joints to make them watertight.
- Glaze top layers to make a smooth finish or embed gravel in the bitumen for rough surfaces.
- Apply gravel or pebbles over top layers of roofs, using rakes or stiff-bristled brooms.
- Mix mortar and plaster to desired consistency or direct workers who perform mixing.
- Clean and prepare surfaces for applications of plaster, cement, stucco, or similar materials, such as by drywall taping.
- Rough the undercoat surface with a scratcher so the finish coat will adhere.
- Cover surfaces such as windows, doors, or sidewalks to protect from splashing.
- Clean job sites.
- Apply coats of plaster or stucco to walls, ceilings, or partitions of buildings, using trowels, brushes, or spray guns.
- Set up scaffolds.
- Determine materials needed to complete the job and place orders accordingly.
- Apply weatherproof, decorative coverings to exterior surfaces of buildings, such as by troweling or spraying on coats of stucco.
- Create decorative textures in finish coat, using brushes or trowels, sand, pebbles, or stones.
- Apply insulation to building exteriors by installing prefabricated insulation systems over existing walls or by covering the outer wall with insulation board, reinforcing mesh, and a base coat.
- Cure freshly plastered surfaces.
- Install guide wires on exterior surfaces of buildings to indicate thickness of plaster or stucco and nail wire mesh, lath, or similar materials to the outside surface to hold stucco in place.
- Spray acoustic materials or texture finish over walls or ceilings.
- Mold or install ornamental plaster pieces, panels, or trim.
- Mix mortar and plaster to desired consistency or direct workers who perform mixing.
- Clean and prepare surfaces for applications of plaster, cement, stucco, or similar materials, such as by drywall taping.
- Rough the undercoat surface with a scratcher so the finish coat will adhere.
- Dig holes, set forms, and mix and pour concrete into forms to make foundations for wood or steel derricks.
- Supply equipment to rig floors as requested and provide assistance to roughnecks.
- Dig drainage ditches around wells and storage tanks.
- Unscrew or tighten pipes, casing, tubing, and pump rods, using hand and power wrenches and tongs.
- Dismantle and repair oil field machinery, boilers, and steam engine parts, using hand tools and power tools.
- Guide cranes to move loads about decks.
- Walk flow lines to locate leaks, using electronic detectors and by making visual inspections, and repair the leaks.
- Lay gas and oil pipelines.
- Bolt together pump and engine parts.
- Move pipes to and from trucks, using truck winches and motorized lifts, or by hand.
- Clean trucks used in the fields.
- Bolt or nail together wood or steel framework to erect derricks.
- Clean up spilled oil by bailing it into barrels.
- Keep pipe deck and main deck areas clean and tidy.
- Cut down and remove trees and brush to clear drill sites, to reduce fire hazards, and to make way for roads to sites.
- Dig holes, set forms, and mix and pour concrete into forms to make foundations for wood or steel derricks.
- Supply equipment to rig floors as requested and provide assistance to roughnecks.
- Dig drainage ditches around wells and storage tanks.
- Chop tar into small pieces, and heat chopped tar in kettles.
- Provide assistance to skilled roofers installing and repairing roofs, flashings, and surfaces.
- Apply shingles, gravel, or asphalt over the top layer of tar to protect the roofing material.
- Check to ensure that completed roofs are watertight.
- Sweep and clean roofs to prepare them for the application of new roofing materials.
- Locate worn or torn areas in roofs.
- Clean work areas and equipment.
- Maintain tools and equipment.
- Cover roofs with layers of roofing felt or asphalt strips before installing tile, slate, or composition materials.
- Remove old roofing materials.
- Unload materials and tools from work trucks, and unroll roofing as directed.
- Set ladders, scaffolds, and hoists in place for taking supplies to roofs.
- Place tiles, nail them to roof boards, and cover nailheads with roofing cement.
- Attach roofing paper and composition shingles, using nails.
- Perform emergency leak repairs and general maintenance for a variety of roof types.
- Attach sheets of metal to roof boards or building frameworks when installing metal roofs.
- Hoist tar and roofing materials to roofs, using ropes and pulleys, or carry materials up ladders.
- Clear drains and downspouts and clean gutters.
- Chop tar into small pieces, and heat chopped tar in kettles.
- Provide assistance to skilled roofers installing and repairing roofs, flashings, and surfaces.
- Apply shingles, gravel, or asphalt over the top layer of tar to protect the roofing material.
- Mix and match colors of paint, stain, or varnish with oil or thinning and drying additives to obtain desired colors and consistencies.
- Apply primers or sealers to prepare new surfaces, such as bare wood or metal, for finish coats.
- Wash and treat surfaces with oil, turpentine, mildew remover, or other preparations, and sand rough spots to ensure that finishes will adhere properly.
- Fill cracks, holes, or joints with caulk, putty, plaster, or other fillers, using caulking guns or putty knives.
- Cover surfaces with dropcloths or masking tape and paper to protect surfaces during painting.
- Smooth surfaces, using sandpaper, scrapers, brushes, steel wool, or sanding machines.
- Read work orders or receive instructions from supervisors or homeowners to determine work requirements.
- Apply paint, stain, varnish, enamel, or other finishes to equipment, buildings, bridges, or other structures, using brushes, spray guns, or rollers.
- Erect scaffolding or swing gates, or set up ladders, to work above ground level.
- Calculate amounts of required materials and estimate costs, based on surface measurements or work orders.
- Polish final coats to specified finishes.
- Select and purchase tools or finishes for surfaces to be covered, considering durability, ease of handling, methods of application, and customers' wishes.
- Remove old finishes by stripping, sanding, wire brushing, burning, or using water or abrasive blasting.
- Remove fixtures such as pictures, door knobs, lamps, or electric switch covers prior to painting.
- Use special finishing techniques such as sponging, ragging, layering, or faux finishing.
- Cut stencils and brush or spray lettering or decorations on surfaces.
- Waterproof buildings, using waterproofers or caulking.
- Spray or brush hot plastics or pitch onto surfaces.
- Bake finishes on painted or enameled articles, using baking ovens.
- Mix and match colors of paint, stain, or varnish with oil or thinning and drying additives to obtain desired colors and consistencies.
- Apply primers or sealers to prepare new surfaces, such as bare wood or metal, for finish coats.
- Wash and treat surfaces with oil, turpentine, mildew remover, or other preparations, and sand rough spots to ensure that finishes will adhere properly.
- Mix mortar or grout and pour or spread mortar or grout on marble slabs, stone, or foundation.
- Dig trench for foundation of monument, using pick and shovel.
- Lay out wall patterns or foundations, using straight edge, rule, or staked lines.
- Shape, trim, face and cut marble or stone preparatory to setting, using power saws, cutting equipment, and hand tools.
- Set vertical and horizontal alignment of structures, using plumb bob, gauge line, and level.
- Remove wedges, fill joints between stones, finish joints between stones, using a trowel, and smooth the mortar to an attractive finish, using a tuck pointer.
- Set stone or marble in place, according to layout or pattern.
- Clean excess mortar or grout from surface of marble, stone, or monument, using sponge, brush, water, or acid.
- Lay brick to build shells of chimneys and smokestacks or to line or reline industrial furnaces, kilns, boilers and similar installations.
- Replace broken or missing masonry units in walls or floors.
- Smooth, polish, and bevel surfaces, using hand tools and power tools.
- Drill holes in marble or ornamental stone and anchor brackets in holes.
- Repair cracked or chipped areas of stone or marble, using blowtorch and mastic, and remove rough or defective spots from concrete, using power grinder or chisel and hammer.
- Remove sections of monument from truck bed, and guide stone onto foundation, using skids, hoist, or truck crane.
- Construct and install prefabricated masonry units.
- Position mold along guidelines of wall, press mold in place, and remove mold and paper from wall.
- Line interiors of molds with treated paper and fill molds with composition-stone mixture.
- Mix mortar or grout and pour or spread mortar or grout on marble slabs, stone, or foundation.
- Dig trench for foundation of monument, using pick and shovel.
- Mix cleaning solutions, abrasive compositions, or other compounds, according to formulas.
- Sweep, shovel, or vacuum loose debris or salvageable scrap into containers and remove containers from work areas.
- Rinse objects and place them on drying racks or use cloth, squeegees, or air compressors to dry surfaces.
- Apply paints, dyes, polishes, reconditioners, waxes, or masking materials to vehicles to preserve, protect, or restore color or condition.
- Clean and polish vehicle windows.
- Drive vehicles to or from workshops or customers' workplaces or homes.
- Scrub, scrape, or spray machine parts, equipment, or vehicles, using scrapers, brushes, clothes, cleaners, disinfectants, insecticides, acid, abrasives, vacuums, or hoses.
- Inspect parts, equipment, or vehicles for cleanliness, damage, and compliance with standards or regulations.
- Maintain inventories of supplies.
- Pre-soak or rinse machine parts, equipment, or vehicles by immersing objects in cleaning solutions or water, manually or using hoists.
- Turn valves or disconnect hoses to eliminate water, cleaning solutions, or vapors from machinery or tanks.
- Turn valves or handles on equipment to regulate pressure or flow of water, air, steam, or abrasives from sprayer nozzles.
- Monitor operation of cleaning machines and stop machines or notify supervisors when malfunctions occur.
- Press buttons to activate cleaning equipment or machines.
- Connect hoses or lines to pumps or other equipment.
- Collect and test samples of cleaning solutions or vapors.
- Clean the plastic work inside cars, using paintbrushes.
- Disassemble and reassemble machines or equipment or remove and reattach vehicle parts or trim, using hand tools.
- Lubricate machinery, vehicles, or equipment or perform minor repairs or adjustments, using hand tools.
- Transport materials, equipment, or supplies to or from work areas, using carts or hoists.
- Fit boot spoilers, side skirts, or mud flaps to cars.
- Mix cleaning solutions, abrasive compositions, or other compounds, according to formulas.
- Sweep, shovel, or vacuum loose debris or salvageable scrap into containers and remove containers from work areas.
- Fill water tanks and check tanks, pipes, and fittings for leaks.
- Cut, miter, and glue piping insulation to insulate plumbing pipes and fittings.
- Test operation or functionality of mechanical, plumbing, electrical, and control systems.
- Apply weather seal, such as pipe flashings and sealants, to roof penetrations and structural devices.
- Install solar collector mounting devices on tile, asphalt, shingle, or built-up gravel roofs, using appropriate materials and penetration methods.
- Install copper or plastic plumbing using pipes, fittings, pipe cutters, acetylene torches, solder, wire brushes, sand cloths, flux, plastic pipe cleaners, or plastic glue.
- Identify plumbing, electrical, environmental, or safety hazards associated with solar thermal installations.
- Demonstrate start-up, shut-down, maintenance, diagnostic, and safety procedures to thermal system owners.
- Install circulating pumps using pipe, fittings, soldering equipment, electrical supplies, and hand tools.
- Install flat-plat, evacuated glass, or concentrating solar collectors on mounting devices, using brackets or struts.
- Install solar thermal system controllers and sensors.
- Design active direct or indirect, passive direct or indirect, or pool solar systems.
- Determine locations for installing solar subsystem components, including piping, water heaters, valves, and ancillary equipment.
- Perform routine maintenance or repairs to restore solar thermal systems to baseline operating conditions.
- Install heat exchangers and heat exchanger fluids according to installation manuals and schematics.
- Apply operation or identification tags or labels to system components, as required.
- Connect water heaters and storage tanks to power and water sources.
- Install plumbing, such as dip tubes, port fittings, drain tank valves, pressure temperature relief valves, or tanks, according to manufacturer specifications and building codes.
- Install monitoring system components, such as flow meters, temperature gauges, and pressure gauges, according to system design and manufacturer specifications.
- Assess collector sites to ensure structural integrity of potential mounting surfaces or the best orientation and tilt for solar collectors.
- Apply ultraviolet radiation protection to prevent degradation of plumbing.
- Fill water tanks and check tanks, pipes, and fittings for leaks.
- Cut, miter, and glue piping insulation to insulate plumbing pipes and fittings.
- Backfill piping trenches to protect pipes from damage.
- Dig trenches for system piping to appropriate depths and lay piping in trenches.
- Monitor and adjust operations of geothermal power plant equipment or systems.
- Prepare and maintain logs, reports, or other documentation of work performed.
- Identify and correct malfunctions of geothermal plant equipment, electrical systems, instrumentation, or controls.
- Collect and record data associated with operating geothermal power plants or well fields.
- Determine whether emergency or auxiliary systems will be needed to keep properties heated or cooled in extreme weather conditions.
- Perform pre- and post-installation pressure, flow, and related tests of vertical and horizontal geothermal loop piping.
- Identify equipment options, such as compressors, and make appropriate selections.
- Adjust power production systems to meet load and distribution demands.
- Maintain electrical switchgear, process controls, transmitters, gauges, and control equipment in accordance with geothermal plant procedures.
- Calculate heat loss and heat gain factors for residential properties to determine heating and cooling required by installed geothermal systems.
- Maintain, calibrate, or repair plant instrumentation, control, and electronic devices in geothermal plants.
- Install and maintain geothermal plant electrical protection equipment.
- Design and lay out geothermal heat systems according to property characteristics, heating and cooling requirements, piping and equipment requirements, applicable regulations, or other factors.
- Install and maintain geothermal system instrumentation or controls.
- Prepare newly installed geothermal heat systems for operation by flushing, purging, or other actions.
- Weld piping, such as high density polyethylene (HDPE) piping, using techniques such as butt, socket, side-wall, and electro-fusion welding.
- Test water sources for factors, such as flow volume and contaminant presence.
- Install, maintain, or repair ground or water source-coupled heat pumps to heat and cool residential or commercial building air or water.
- Integrate hot water heater systems with geothermal heat exchange systems.
- Determine the type of geothermal loop system most suitable to a specific property and its heating and cooling needs.
- Apply coatings or operate systems to mitigate corrosion of geothermal plant equipment or structures.
- Operate equipment, such as excavators, backhoes, rock hammers, trench compactors, pavement saws, grout mixers or pumps, geothermal loop reels, and coil tubing units (CTU).
- Backfill piping trenches to protect pipes from damage.
- Dig trenches for system piping to appropriate depths and lay piping in trenches.
- Perform minor plumbing, welding, or concrete mixing work.
- Dig or direct digging of post holes and set poles to support structures.
- Follow established safety rules and regulations and maintain a safe and clean environment.
- Measure and mark cutting lines on materials, using a ruler, pencil, chalk, and marking gauge.
- Assemble and fasten materials to make frameworks or props, using hand tools and wood screws, nails, dowel pins, or glue.
- Study specifications in blueprints, sketches, or building plans to prepare project layout and determine dimensions and materials required.
- Shape or cut materials to specified measurements, using hand tools, machines, or power saws.
- Verify trueness of structure, using plumb bob and level.
- Inspect ceiling or floor tile, wall coverings, siding, glass, or woodwork to detect broken or damaged structures.
- Erect scaffolding or ladders for assembling structures above ground level.
- Install structures or fixtures, such as windows, frames, floorings, trim, or hardware, using carpenters' hand or power tools.
- Maintain records, document actions, and present written progress reports.
- Remove damaged or defective parts or sections of structures and repair or replace, using hand tools.
- Maintain job records and schedule work crew.
- Anchor and brace forms and other structures in place, using nails, bolts, anchor rods, steel cables, planks, wedges, and timbers.
- Bore boltholes in timber, masonry or concrete walls, using power drill.
- Install rough door and window frames, subflooring, fixtures, or temporary supports in structures undergoing construction or repair.
- Cover subfloors with building paper to keep out moisture and lay hardwood, parquet, or wood-strip-block floors by nailing floors to subfloor or cementing them to mastic or asphalt base.
- Construct forms or chutes for pouring concrete.
- Arrange for subcontractors to deal with special areas, such as heating or electrical wiring work.
- Build or repair cabinets, doors, frameworks, floors, or other wooden fixtures used in buildings, using woodworking machines, carpenter's hand tools, or power tools.
- Finish surfaces of woodwork or wallboard in houses or buildings, using paint, hand tools, or paneling.
- Select and order lumber or other required materials.
- Work with or remove hazardous material.
- Fill cracks or other defects in plaster or plasterboard and sand patch, using patching plaster, trowel, and sanding tool.
- Prepare cost estimates for clients or employers.
- Apply shock-absorbing, sound-deadening, or decorative paneling to ceilings or walls.
- Examine structural timbers and supports to detect decay, and replace timbers as required, using hand tools, nuts, and bolts.
- Build sleds from logs and timbers for use in hauling camp buildings and machinery through wooded areas.
- Perform minor plumbing, welding, or concrete mixing work.
- Dig or direct digging of post holes and set poles to support structures.
- Mix specified amounts of sand, clay, dirt, or mortar powder with water to form refractory mixtures.
- Measure distance from reference points and mark guidelines to lay out work, using plumb bobs and levels.
- Construct corners by fastening in plumb position a corner pole or building a corner pyramid of bricks, and filling in between the corners using a line from corner to corner to guide each course, or layer, of brick.
- Apply and smooth mortar or other mixture over work surface.
- Calculate angles and courses and determine vertical and horizontal alignment of courses.
- Break or cut bricks, tiles, or blocks to size, using trowel edge, hammer, or power saw.
- Interpret blueprints and drawings to determine specifications and to calculate the materials required.
- Remove excess mortar with trowels and hand tools, and finish mortar joints with jointing tools, for a sealed, uniform appearance.
- Fasten or fuse brick or other building material to structure with wire clamps, anchor holes, torch, or cement.
- Clean working surface to remove scale, dust, soot, or chips of brick and mortar, using broom, wire brush, or scraper.
- Examine brickwork or structure to determine need for repair.
- Remove burned or damaged brick or mortar, using sledgehammer, crowbar, chipping gun, or chisel.
- Lay and align bricks, blocks, or tiles to build or repair structures or high temperature equipment, such as cupola, kilns, ovens, or furnaces.
- Spray or spread refractory material over brickwork to protect against deterioration.
- Mix specified amounts of sand, clay, dirt, or mortar powder with water to form refractory mixtures.
- Mix or pour concrete into forms to encase waste material for disposal.
- Build containment areas prior to beginning abatement or decontamination work.
- Remove asbestos or lead from surfaces, using hand or power tools such as scrapers, vacuums, or high-pressure sprayers.
- Identify asbestos, lead, or other hazardous materials to be removed, using monitoring devices.
- Prepare hazardous material for removal or storage.
- Comply with prescribed safety procedures or federal laws regulating waste disposal methods.
- Load or unload materials into containers or onto trucks, using hoists or forklifts.
- Clean contaminated equipment or areas for reuse, using detergents or solvents, sandblasters, filter pumps, or steam cleaners.
- Remove or limit contamination following emergencies involving hazardous substances.
- Clean mold-contaminated sites by removing damaged porous materials or thoroughly cleaning all contaminated nonporous materials.
- Operate machines or equipment to remove, package, store, or transport loads of waste materials.
- Record numbers of containers stored at disposal sites, specifying amounts or types of equipment or waste disposed.
- Sort specialized hazardous waste at landfills or disposal centers, following proper disposal procedures.
- Operate cranes to move or load baskets, casks, or canisters.
- Drive trucks or other heavy equipment to convey contaminated waste to designated sea or ground locations.
- Identify or separate waste products or materials for recycling or reuse.
- Upload baskets of irradiated elements onto machines that insert fuel elements into canisters and secure lids.
- Process e-waste, such as computer components containing lead or mercury.
- Organize or track the locations of hazardous items in landfills.
- Apply bioremediation techniques to hazardous wastes to allow naturally occurring bacteria to break down toxic substances.
- Package, store, or move irradiated fuel elements in the underwater storage basins of nuclear reactor plants, using machines or equipment.
- Mix or pour concrete into forms to encase waste material for disposal.
- Pour water into wells, or pump water or slush into wells to cool drill bits and to remove drillings.
- Operate controls to stabilize machines and to position and align drills.
- Start, stop, and control drilling speed of machines and insertion of casings into holes.
- Regulate air pressure, rotary speed, and downward pressure, according to the type of rock or concrete being drilled.
- Select and attach drill bits and drill rods, adding more rods as hole depths increase, and changing drill bits as needed.
- Drive or guide truck-mounted equipment into position, level and stabilize rigs, and extend telescoping derricks.
- Operate machines to flush earth cuttings or to blow dust from holes.
- Verify depths and alignments of boring positions.
- Perform routine maintenance and upgrade work on machines and equipment, such as replacing parts, building up drill bits, and lubricating machinery.
- Select the appropriate drill for the job, using knowledge of rock or soil conditions.
- Document geological formations encountered during work.
- Drive trucks, tractors, or truck-mounted drills to and from work sites.
- Assemble and position machines, augers, casing pipes, and other equipment, using hand and power tools.
- Record drilling progress and geological data.
- Retrieve lost equipment from bore holes, using retrieval tools and equipment.
- Fabricate well casings.
- Create and lay out designs for drill and blast patterns.
- Place and install screens, casings, pumps, and other well fixtures to develop wells.
- Operate water-well drilling rigs and other equipment to drill, bore, and dig for water wells or for environmental assessment purposes.
- Review client requirements and proposed locations for drilling operations to determine feasibility, and to determine cost estimates.
- Drill or bore holes in rock for blasting, grouting, anchoring, or building foundations.
- Perform pumping tests to assess well performance.
- Disinfect, reconstruct, and redevelop contaminated wells and water pumping systems, and clean and disinfect new wells in preparation for use.
- Design well pumping systems.
- Signal crane operators to move equipment.
- Withdraw drill rods from holes, and extract core samples.
- Inspect core samples to determine nature of strata, or take samples to laboratories for analysis.
- Retract augers to force discharge dirt from holes.
- Observe electronic graph recorders and flow meters that monitor the water used to flush debris from holes.
- Monitor drilling operations, by checking gauges and listening to equipment to assess drilling conditions and to determine the need to adjust drilling or alter equipment.
- Pour water into wells, or pump water or slush into wells to cool drill bits and to remove drillings.
- Insert, pack, and pour explosives, such as dynamite, ammonium nitrate, black powder, or slurries into blast holes; then shovel drill cuttings, admit water into boreholes, and tamp material to compact charges.
- Examine blast areas to determine amounts and kinds of explosive charges needed and to ensure that safety laws are observed.
- Tie specified lengths of delaying fuses into patterns in order to time sequences of explosions.
- Place safety cones around blast areas to alert other workers of danger zones, and signal workers as necessary to ensure that they clear blast sites prior to explosions.
- Place explosive charges in holes or other spots; then detonate explosives to demolish structures or to loosen, remove, or displace earth, rock, or other materials.
- Mark patterns, locations, and depths of charge holes for drilling, and issue drilling instructions.
- Compile and keep gun and explosives records in compliance with local and federal laws.
- Measure depths of drilled blast holes, using weighted tape measures.
- Connect electrical wire to primers, and cover charges or fill blast holes with clay, drill chips, sand, or other material.
- Lay primacord between rows of charged blast holes, and tie cord into main lines to form blast patterns.
- Assemble and position equipment, explosives, and blasting caps in holes at specified depths, or load perforating guns or torpedoes with explosives.
- Verify detonation of charges by observing control panels, or by listening for the sounds of blasts.
- Move and store inventories of explosives, loaded perforating guns, and other materials, according to established safety procedures.
- Light fuses, drop detonating devices into wells or boreholes, or activate firing devices with plungers, dials, or buttons, in order to set off single or multiple blasts.
- Drive trucks to transport explosives and blasting equipment to blasting sites.
- Cut specified lengths of primacord and attach primers to cord ends.
- Maintain inventory levels, ordering new supplies as necessary.
- Repair and service blasting, shooting, and automotive equipment, and electrical wiring and instruments, using hand tools.
- Set up and operate short-wave radio or field telephone equipment to transmit and receive blast information.
- Insert waterproof sealers, bullets, and/or powder charges into guns, and screw gun ports back into place.
- Clean, gauge, and lubricate gun ports.
- Connect gun chambers to electric detonating devices, and operate controls at panelboards, in order to detonate charges in guns or to ignite chemical charges.
- Lower perforating guns into wells, using hoists; then use measuring devices and instrument panels to position guns in correct positions for taking samples.
- Insert powder charges into chambers of sidewall sample-taking cylinders, and assemble cylinders, using special wrenches.
- Obtain samples of earth from sidewalls of well boreholes, using electrically exploding devices.
- Create and lay out designs for drill and blast patterns.
- Document geological formations encountered during work.
- Operate machines to flush earth cuttings or to blow dust from holes.
- Set up and operate equipment such as hoists, jackhammers, and drills, in order to bore charge holes.
- Signal crane operators to move equipment.
- Insert, pack, and pour explosives, such as dynamite, ammonium nitrate, black powder, or slurries into blast holes; then shovel drill cuttings, admit water into boreholes, and tamp material to compact charges.
