Plant Technician Wastewater

Position Details

• Job Category: Engineering & Technical
• Division & Section: Toronto Water, Wastewater Treatment
• Work Location: Ashbridges Bay Treatment Plant, 9 Leslie Street (8 positions), Humber Treatment Plant (2 positions), 130 The Queensway (5 positions)
• Job Type & Duration: Full-time, Temporary (Transition to Full-time Permanent after obtaining Class 4 WWT Certification)
• Hours & Shift Information: Monday to Sunday, 40 hours per week. Regularly scheduled rotating shifts and/or other shift schedules consisting of 12 and/or 8 hour shifts.
• Affiliation: L416 Outside
• Number of Positions Open: 15
• Posting Period: 29-Sept-2026 to 14-Oct-2026

Major Responsibilities

• Adjusts, inspects and evaluates processes and equipment that control the operation and effectiveness of a wastewater treatment facility in order to optimize performance, maintain regulatory compliance, and minimize local and/or plant wide adverse impacts while considering cost, equipment capabilities, environmental impacts and OH&S.
• Operates and monitors the performance of plant process equipment and related appurtenances including valves, gates, pumps, compressors, engines, electric motors/generators, boilers, incinerators, HVAC systems, chemical dosing equipment, etc.
• Makes process adjustments, operational decisions and addresses/responds to alarm conditions and emergency situations to ensure efficient, compliant and safe operation within established performance, regulatory and quality limits.
• Upon fulfilling licensing requirements, assumes the duties and responsibilities of an Operator In Charge (OIC) as defined by O.Reg 129/04.
• Maintains records and documentation of all process/work area activities using manual or computerized systems including plant logbooks, computerized databases, work order documentation.
• Accountable for efficient operation and compliance of all processes within assigned work area in a Wastewater Treatment Plant and promoting optimal team performance.
• Collects samples, performs routine tests and analysis, and records results.
• Identifies changes in operational conditions and interprets information to implement corrective actions and/or troubleshoot process issues.
• Utilizes various tools including Process Control System (PCS), other SCADA systems, Laboratory Information Management System (LIMS), Work Management System (WMS), Eramosa Reporting and Information System (e.RIS), Electronic Operator System (EOPs) to maintain, manage and validate operational data.
• Ensures safe work practices, may require use of self-contained breathing apparatus/respirator, perform confined space entry, equipment lockout/tagging, etc.
• Isolates, locks out and prepares systems and equipment to support maintenance activities.
• Performs preventative maintenance diagnostics, monitoring equipment for excessive vibration or high temperatures.
• Performs minor electrical and instrumentation duties such as calibration of instruments and minor service and repairs to mechanical equipment including replacing V-belts, disconnecting/reconnecting pipes, minor plumbing repairs.
• Maintains cleanliness and safety of facilities and work areas.
• Utilizes the Work Management System to identify/report maintenance needs and document work activities.
• Initiates material purchase orders, issues materials documents, receives materials, maintains inventories and records, follows up on maintenance quality.
• Initiates call in of plant staff on evenings and weekends for shift coverage, operational issues and emergencies.
• Provides work direction and training to other staff.
• Responds and interacts with staff, public, and regulators related to plant operations.
• Performs all work assignments safely in accordance with the Occupational Health and Safety Act and other applicable regulations and legislation.
• Works shifts as per assigned Work Area, shift assignment and schedule.
• Performs related work as assigned.

Key Qualifications

Your application must describe your qualifications as they relate to:

• Must have a Grade 12 diploma or equivalent recognized by the Ontario Ministry of Environment (MOE) and possess/maintain a valid Class IV Wastewater Treatment Operator's Certificate issued under Ontario Regulation 129/04.
• Alternatively, a minimum 2 year diploma/degree/certificate from a recognized Canadian college or university in environmental science, biology, chemistry, or equivalent, and be able to obtain Class IV Wastewater Treatment Operator's Certificate issued under Ontario Regulation 129/04.
• If employed without certification, must write and pass Class 1 certification exam within 90 days from start date and progress through levels by writing/passing respective exams as scheduled.