Unit Group

7442 Waterworks and gas maintenance workers

Waterworks maintenance workers maintain and repair waterworks equipment and facilities. They are employed in water filtration and distribution plants and waste treatment plants. Gas maintenance workers check and perform routine maintenance and minor repairs to exterior and underground gas mains and distribution lines. They are employed by gas distribution companies.

Example Titles

gas leak locator
gas maintenance worker
gas utility operator
pipeline maintenance worker
pipeline patrolman/woman
utility plant maintenance worker
waterworks maintenance worker

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Main duties


Waterworks maintenance workers perform some or all of the following duties:
  • Check, clean and lubricate waterworks equipment, such as pumping equipment, chlorination equipment and compressors
  • Adjust and repair waterworks equipment under the direction of qualified tradesperson
  • Search and locate reported water leaks and repair water-mains, valves or outlets
  • Install water meters using hand and power tools.

  • Gas maintenance workers perform some or all of the following duties:
  • Check and lubricate gas pipeline valves
  • Conduct routine survey of gas mains and distribution lines to detect and locate escaping gas using gas detecting devices
  • Investigate reports of gas leaks to determine the exact location and extent of leaks
  • Dig ground to expose gas lines and repair damaged pipes
  • Keep record of work performed and location and condition of pipelines
  • Provide information on underground gas distribution lines and observe excavation work to ensure that underground gas facilities are protected.

Employment requirements

  • Completion of secondary school may be required.
  • Several years of experience as a labourer in the same company may be required.
  • On-the-job training is provided.

Additional information

  • Mobility between jobs in this unit group normally occurs within the same area of work, such as within waste water treatment plants, within water filtration and distribution plants or within gas distribution plants.
  • Progression to supervisory positions is possible with experience.

Classified elsewhere

  • Gas fitters (7253)
  • Supervisors of water and gas maintenance workers (in 9212 Supervisors, petroleum, gas and chemical processing and utilities )
  • Water and waste treatment plant operators (9243)

Classification Structure - 7