£21,320 Average salary at age 20
£32,760 Average Salary
45 Average hours per week


Water and sewerage plant operatives operate valves to control water supplies in mains and pipelines, attend screening, filtering, water purifying and sedimentation plant, clear any blockages and patrol and maintain sewerage systems.

Main Tasks

  • Attends water filtration and purification plant, monitors chemical treatment and regulates treatment of water supply within strict guidelines;
  • Opens and closes valves to regulate quantity and pressure of water and reports defective valves or abnormal water pressure;
  • Stops water supply in an emergency and informs consumers likely to be affected;
  • Regulates flow of raw sewage into screening plant, releases screened sewage and regulates its flow into detritus pits, sedimentation tanks and filtration beds;
  • Cleans out screen compartments, sedimentation tanks and filtration beds manually or using mechanical scraper;
  • Patrols sections of sewer, examines for any blockages or gas releases and clears blockages by flushing or by using boring rods;
  • Digs trench and assists pipe layers to lay, renew or repair sewerage pipes.


There are no formal academic entry requirements. Training is provided off- and on-the-job. NVQs/ SVQs in Operating Process Plant are available at Level 2.

UK Prospects

21400 Workforce Size
5.79% Predicted decline 2024 - 2027
611 Predicted Replacement 2024 - 2027

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