STP Operator (Unionized)

Aecon Group Inc.; Bowmanville; On-site; CAD 70,863 - 74,927; Full time

Job summary

Aecon Group Inc. is seeking an STP Operator in Bowmanville, Ontario, responsible for operating and monitoring the Separation & Treatment Plant to ensure safe operation and environmental compliance. Responsibilities include controlling equipment operation, managing waste, and ensuring water quality. The role requires adherence to health and safety standards. The pay range starts at $51.44/hr effective May 1, 2025, increasing to $54.39/hr in 2026.

Qualifications

• Experience in operating separation and treatment plants.
• Familiarity with monitoring water quality parameters.
• Knowledge of waste management practices.

Responsibilities

• Operate and monitor separation and treatment units.
• Control pumps, valves, and conveyors for plant throughput.
• Manage sludge and coordinate waste disposal.

Skills

Operation of separation units

Monitoring water quality

Waste management

Health and safety compliance

Job description

What is the Opportunity?

As part of an alliance agreement, Aecon has been awarded a contract in an Aecon-led partnership with Kiewit Nuclear Canada by Ontario Power Generation (OPG) for the execution phase on the Darlington New Nuclear Project (DNNP) in Clarington, Ontario. In 2025, Aecon began construction of the Unit 1 Small Modular Reactor at the Darlington site.

Job Summary

The STP Operator is responsible for operating and monitoring the Separation & Treatment Plant to efficiently separate solids, oil, and contaminants from wastewater generated during construction and tunnelling activities. The role ensures safe operation, environmental compliance, and continuous plant availability to support site operations.

Key Responsibilities – Plant Operation

• Operate and monitor separation and treatment units including settling tanks, separators, hydrocyclones, clarifiers, oil‑water separators, and chemical dosing systems.
• Control pumps, valves, mixers, and conveyors to maintain steady plant throughput.
• Adjust flow rates, pressures, and dosing to optimize separation efficiency.

Monitoring & Quality Control

• Monitor inlet and outlet water quality (pH, turbidity, suspended solids, oil content).
• Take routine samples and maintain operational logs.
• Ensure treated water meets discharge or reuse requirements.

Solids & Waste Handling

• Manage sludge, separated solids, and oil waste.
• Operate dewatering units and monitor cake quality.
• Coordinate waste disposal as per environmental regulations.

Health, Safety & Environment (HSE)

• Follow all site safety and environmental procedures.
• Handle chemicals safely using proper PPE.
• Prevent spills, overflows, and environmental incidents.

Reporting & Coordination

• Report daily operations, downtime, and issues to the Supervisor.
• Coordinate with TBM, slurry, dewatering, and site teams.
• Support inspections by the client or authorities.

Pay Range

Effective May 1, 2025: $51.44/hr

Effective May 1, 2026: $52.80/hr

Effective May 1, 2026: $54.39/hr

Equal Opportunity Employer

We welcome all to apply including women, visible minorities, Indigenous peoples, persons with disabilities, and persons of any sexual orientation or gender identity. We are committed to adhering to the objectives and requirements outlined in the Accessible Canada Act (ACA), and to meeting the accessibility needs of persons with disabilities in a timely manner. Appropriate accommodations will be provided upon request throughout the interview and hiring process.