该小组履行以下部分或全部职责：

自来水厂维修工

• 检查、清洁和润滑水厂设备，例如抽水设备、加氯设备和压缩机
• 在合格技工的指导下调整和维修水务设备
• 搜索和定位报告的漏水并修理水管、阀门或出口
• 使用手动和电动工具安装水表。

燃气维修工

• 检查和润滑燃气管道阀门
• 对煤气总管和配气管线进行例行勘察，使用气体检测设备检测和定位逸出的气体
• 调查气体泄漏报告以确定泄漏的确切位置和范围
• 挖地露出煤气管道并修复损坏的管道
• 记录所执行的工作以及管道的位置和状况
• 提供地下输气管线信息，观察挖掘工作，确保地下燃气设施得到保护。

其他公用事业工人

• 操作设备和仪器来定位和标记地下公用事业线路和管道
• 提供有关地下公用设施线路的信息
• 操作设备和手动工具检查和测试电线杆是否腐烂和退化。

• 可能需要完成中学学业。
• 可能需要在同一家公司担任劳动者多年的经验。
• 提供在职培训。
• 魁北克省和安大略省要求自来水厂维护人员获得饮用水认证。

• 本单元组的工作之间的流动通常发生在同一工作区域内，例如在废水处理厂内、水过滤和分配厂内或气体分配厂内。
• 随着经验的积累，可能晋升到主管职位。

• 水和废物处理厂运营商（92101）
• 主管，石油、天然气和化学加工和公用事业（92011）
• 煤气安装工 ( 72302)

This group performs some or all of the following duties:

Waterworks maintenance workers

• 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

• 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.

Other utility workers

• Operate equipment and instruments to locate and mark underground utility lines and pipes
• Provide information on underground utility lines
• Operate equipment and hand tools to inspect and test utility poles for decay and deterioration.

• 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.
• Drinking water certification is required in Quebec and Ontario for waterworks maintenance workers.

• 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.

• Water and waste treatment plant operators (92101)
• Supervisors, petroleum, gas and chemical processing and utilities (92011)
• Gas fitters (72302)