Occupation
Wastewater treatment operator
Wastewater treatment operators run the screening, settling, biological, and disinfection stages that clean sewage and industrial effluent before it is discharged or reused. Much of the skill lies in reading how the biological process is behaving and adjusting aeration, return sludge, and chemical dosing before consent limits are threatened. Conditions can be wet, odorous, and physically demanding.
Also known as: Sewage treatment operator · Wastewater plant operator · Water pollution control operator
Occupation content
Part of Utilities, energy, mining and resources
What the work involves
- Monitor aeration, settling, and digester performance and adjust air, dosing, or sludge return rates.
- Collect influent and effluent samples and run tests for solids, organic loading, and residuals.
- Clear screens, grit channels, and pumps, and clean tanks and channels as scheduled.
- Operate dewatering and sludge handling equipment and arrange biosolids removal.
- Log process data and complete discharge compliance reports for the environmental regulator.
- Troubleshoot process upsets such as bulking sludge, foaming, or loss of nitrification.
How people commonly enter
- A college certificate or diploma in environmental technology, wastewater treatment, or process operations.
- An operator-in-training role with a municipality or private utility, progressing through certificate classes.
- Transferring from a mechanical, electrical, or laboratory role and adding wastewater operator certification.
- A short entry-level operator course paired with supervised plant experience.
Typical training: Certificate or college diploma
Licensing: Regulated in most jurisdictions — confirm the current requirement with the regulator in your province, state, or country.
Typical work context
Shift work · Physically active · Team based · High responsibility · Outdoors
Related interests
Realistic (hands-on) · Investigative (analytical) · Conventional (organizing)
Related aptitude preparation
These are preparation links only. They do not measure eligibility for this occupation and no score here qualifies or disqualifies anyone.
Skills to practise
Practice suites
Related learning
Family-level learning links for Utilities, energy, mining and resources.
Official sources
Labour-market facts such as pay and employment projections are not reproduced here. Open an official source below for figures, with its own geography and reference period.
- US BLS Occupational Outlook Handbook — Water and Wastewater Treatment Plant and System Operators · United States
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- O*NET OnLine — occupation search: wastewater treatment plant operator · United States
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- UK National Careers Service — Explore careers · United Kingdom
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Labour-market context (not part of exploration match)
This is broad family-level context for Utilities, energy, mining and resources in Canada, not a figure for Wastewater treatment operator. It does not affect matching scores and is not an eligibility determination.
This is a broad Utilities, energy, mining and resources family. Explore the official profile for the chosen occupation; entry education and training can differ within the family.
Canada Job Bank Career Planning · Canada · Current official profile; consult source for its release period
Utilities, energy, mining and resources: education pathways
Some roles in Utilities, energy, mining and resources may be regulated. Confirm whether the specific role requires registration, certification, or a jurisdiction-specific licence.
Canada Job Bank Career Planning · Canada · Current official profile; consult source for its release period
Utilities, energy, mining and resources: licensing
Find jobs
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- Search Canada Job Bank · Canada
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