Plumber Task Matrix and Weightings

MWA A – Performs common occupational skills 12%

1. Task A-1 Performs safety-related functions. 20%

• A-1.01 Maintains safe work environment.
• A-1.02 Uses personal protective equipment (PPE) and safety equipment.
• A-1.03 Performs lock-out and tag-out procedures.

2. Task A-2 Uses and maintains tools and equipment. 27%

• A-2.01 Uses common tools and equipment.
• A-2.02 Uses access equipment.
• A-2.03 Uses rigging, hoisting, lifting and positioning equipment.
• A-2.04 Rigs loads for cranes.
• A-2.05 Uses welding equipment.
• A-2.06 Uses soldering and brazing equipment.
• A-2.07 Uses oxy-fuel equipment.

3. Task A-3 Organizes work. 18%

• A-3.01 Organizes project tasks and procedures.
• A-3.02 Organizes materials and supplies.

4. Task A-4 Performs routine trade activities. 26%

• A-4.01 Performs piping system layout.
• A-4.02 Calculates pipe, tube and tubing lengths.
• A-4.03 Calculates piping offsets.
• A-4.04 Installs piping supports.
• A-4.05 Installs sleeves.
• A-4.06 Commissions systems.
• A-4.07 Protects piping systems, equipment and structure from damage.
• A-4.08 Coordinates excavation and backfilling of trenches.
• A-4.09 Installs fire stopping devices and materials.

5. Task A-5 Uses communication and mentoring techniques. 9%

• A-5.01 Uses communication techniques.
• A-5.02 Uses mentoring techniques.

MWA B – Prepares and assembles pipe 13%

6. Task B-6 Prepares pipe. 41%

• B-6.01 Inspects tube, tubing, pipe and fittings before installation.
• B-6.02 Cuts tube, tubing and pipe.
• B-6.03 Bends tube, tubing and pipe.
• B-6.04 Prepares tube, tubing and pipe connections.

7. Task B-7 Joins tube, tubing and pipe. 59%

• B-7.01 Joins copper tube, tubing and pipe.
• B-7.02 Joins plastic pipe and tubing.
• B-7.03 Joins steel pipe.
• B-7.04 Joins cast iron pipe.
• B-7.05 Joins specialized pipe.

MWA C – Installs, tests and services sewers, sewage treatment systems and drainage, waste and vent (DWV) systems 24%

8. Task C-8 Installs, tests and services sewers. 19%

• C-8.01 Sizes pipe for sewers.
• C-8.02 Installs manholes and catch basins.
• C-8.03 Installs piping for sewers.
• C-8.04 Tests manholes, catch basins and piping for sewers.
• C-8.05 Services manholes, catch basins and piping for sewers.

9. Task C-9 Installs, tests and services sewage treatment systems. 14%

• C-9.01 Plans installation of sewage treatment systems.
• C-9.02 Installs sewage treatment system components.
• C-9.03 Tests sewage treatment systems and components.
• C-9.04 Services sewage treatment systems and components.

10. Task C-10 Installs, tests and services interior drainage, waste and vent (DWV) systems. 67%

• C-10.01 Sizes pipe for interior drainage, waste and vent (DWV) systems.
• C-10.02 Installs underground piping and components for interior drainage, waste and vent (DWV) systems.
• C-10.03 Installs piping and components for interior drainage, waste and vent (DWV) systems above-ground.
• C-10.04 Tests interior drainage, waste and vent (DWV) systems.
• C-10.05 Services piping and components for interior drainage, waste and vent (DWV) systems.

MWA D – Installs, tests and services water service and distribution 17%

11. Task D-11 Installs, tests and services water services. 24%

• D-11.01 Sizes pipe for water services.
• D-11.02 Installs piping for water services.
• D-11.03 Installs water service equipment.
• D-11.04 Tests water service piping and components.
• D-11.05 Services water services.

12. Task D-12 Installs, tests and services potable water distribution systems. 52%

• D-12.01 Sizes piping and equipment for potable water distribution systems.
• D-12.02 Installs piping for potable water distribution systems.
• D-12.03 Installs potable water distribution equipment.
• D-12.04 Installs and uses cross-connection control devices and methods.
• D-12.05 Tests potable water distribution systems.
• D-12.06 Services potable water distribution systems.

13. Task D-13 Installs, tests and services pressure systems. 24%

• D-13.01 Sizes pressure systems.
• D-13.02 Installs piping for pressure systems.
• D-13.03 Installs equipment and components for pressure systems.
• D-13.04 Tests pressure systems.
• D-13.05 Services pressure systems.

MWA E – Installs, tests and services fixtures, appliances, and water treatment systems 14%

14. Task E-14 Installs, tests and services plumbing fixtures and appliances. 72%

• E-14.01 Installs fixture supports.
• E-14.02 Installs plumbing fixtures and appliances.
• E-14.03 Tests plumbing fixtures and appliances.
• E-14.04 Services plumbing fixtures and appliances.

15. Task E-15 Installs, tests and services water treatment equipment. 28%

• E-15.01 Sizes water treatment equipment.
• E-15.02 Installs water treatment equipment.
• E-15.03 Tests water treatment equipment.
• E-15.04 Services water treatment equipment.

MWA F – Installs, tests and services low pressure steam and hydronic heating and cooling systems 14%

16. Task F-16 Installs, tests and services low pressure steam systems. 12%

• F-16.01 Sizes piping and components for low pressure steam systems.
• F-16.02 Installs piping and components for low pressure steam systems.
• F-16.03 Tests piping and components for low pressure steam systems.
• F-16.04 Services piping and components for low pressure steam systems.

17. Task F-17 Installs, tests and services hydronic heating and cooling piping systems. 33%

• F-17.01 Sizes piping and components for hydronic systems.
• F-17.02 Installs piping and components for hydronic systems.
• F-17.03 Tests piping and components for hydronic systems.
• F-17.04 Services piping and components for hydronic systems.

18. Task F-18 Installs, tests and services hydronic heating and cooling generating systems. 28%

• F-18.01 Installs hydronic heating generating systems.
• F-18.02 Installs hydronic cooling generating systems.
• F-18.03 Tests hydronic heating and cooling generating systems.
• F-18.04 Services hydronic heating and cooling generating systems.

19. Task F-19 Installs, tests and services hydronic system controls and transfer units. 27%

• F-19.01 Installs hydronic system controls.
• F-19.02 Installs hydronic transfer units.
• F-19.03 Tests hydronic system controls and transfer units.
• F-19.04 Services hydronic system controls and transfer units.

MWA G – Installs, tests and services fire protection systems NCC

20. Task G-20 Installs, tests and services flow-through fire protection systems. (Not Common Core)

• G-20.01 Installs flow-through fire protection systems. (Not Common Core)
• G-20.02 Tests flow-through fire protection systems. (Not Common Core)
• G-20.03 Services flow-through fire protection systems. (Not Common Core)

21. Task G-21 Installs, tests and services standpipe systems. (Not Common Core)

• G-21.01 Installs piping and equipment for standpipe systems. (Not Common Core)
• G-21.02. Tests standpipe systems. (Not Common Core)
• G-21.03. Services standpipe systems. (Not Common Core)

MWA H – Installs, tests and services specialized systems 6%

22. Task H-22 Installs, tests and services specialized systems. 60%

• H-22.01 Installs piping for specialized systems.
• H-22.02 Installs equipment and components for specialized systems.
• H-22.03 Tests specialized systems.
• H-22.04 Services specialized systems.

23. Task H-23 Installs, tests and services process piping systems. 40%

• H-23.01 Installs piping for process piping systems.
• H-23.02 Installs equipment and components for process piping systems.
• H-23.03 Tests process piping systems.
• H-23.04 Services process piping systems.