Wastewater Treatment Operator

40359 Bush Line, 40359 Bush Line, St. Thomas, Ontario, Canada

Posted Thursday, February 26, 2026 at 5:00 a.m. | Expires Tuesday, March 17, 2026 at 3:59 a.m.

The Corporation of the City of St. Thomas - Environmental Services Department has an existing vacancy for the following position:

Permanent, Full-Time

Job Posting #

Reports to:

Manager of Pollution Control

Location:

Wastewater Treatment Plant (40359 Bush Line, St. Thomas)

Hours:

40 hours/week;
Monday to Friday, Overtime and On-Call as required

Union Affiliation: CUPE Local 35

Under the general supervision of the Manager of Pollution Control and technical guidance and direction of the Chief Wastewater Treatment Operator, operates, inspects, cleans, maintains, and repairs the system of treatment works, regulatory devices, equipment and appurtenances comprising the Pollution Control Plant and Pumping Stations. The principal function of this position is to provide proper treatment of sanitary wastewater through the proper operation and maintenance of the wastewater treatment plant and pumping stations in compliance with Ministry of Environment regulations and Environmental Compliance Approval requirements.

• Monitors facility and associated pump stations through visual inspections, by using the computerized Supervisory Control and Data Acquisition (SCADA) System, or by taking readings from process control equipment in order to make any adjustments to the equipment and processes that ensure regulatory compliance and the efficient operation of the facilities.
• Operates vehicles and equipment within established operating procedures in order to ensure that all applicable guidelines, procedures, regulations are complied with. This includes, but is not limited to pumps, compressors, overhead hoists, portable and stationery generators, pneumatic, hydraulic, and electric tools and related tools and equipment.
• Collects samples from various processes at the Treatment Plant and performs analysis by conducting standard tests, in order to make process adjustments.
• Records performance monitoring data such as flows, chemicals used, levels, analytical data to assist in creating an operating history of the facility, and to be used in planning and costing of operations.
• Ensures safe reception of all bulk chemicals (ie. chlorine, alum), septic/industrial waste and leachate.
• Inspects, cleans, maintains, adjusts, and repairs all plant equipment as required in accordance with prescribed standards.
• Monitors sludge haulage and septic waste dumping.
• Performs preventative maintenance checks and servicing on all plant and station equipment and ensures timely and accurate completion of preventative maintenance activities.
• Maintains the facility, tools, and equipment in a clean and orderly state.
• Maintains grounds in an orderly state by clearing snow, trimming grass and shrubbery, operating and maintaining all grounds keeping equipment, such as tractors, trucks, mowers, snowblowers, etc.
• Administers database entry, completes, and maintains departmental paperwork including inspection and activity logs, work orders, record keeping, Ministry forms and completes reports as necessary.
• Assists with the ordering and delivery of materials and services within approved policies, to ensure the efficient and timely completion of work projects.
• May be assigned the duties of Overall Responsible Operator (ORO) as required.
• Participates in the Master Rotation Schedule including the after-hours and weekend on call system.
• Performs other such related duties, responsibilities, and functions as may be assigned.

Ontario Secondary School Graduation Diploma or equivalent.

MECP Class I Certification for Wastewater Treatment and Class I Certification for Wastewater Collection.

A minimum accredited 2-year College Diploma in Environmental Science or Technology, or equivalent is considered an asset.

3- years operational experience in Wastewater Treatment and Wastewater Collection systems.

Plumbing, electrical and/or construction experience is considered an asset.

Experience in Wastewater Operations, computerized maintenance management systems (CMMS) or Supervisory Control and Data Acquisition (SCADA) is considered an asset.

• Must have extensive knowledge of legislation applicable to wastewater treatment processes in order to operate the facilities within regulatory requirements.
• Applied knowledge of mechanical, electrical and instrumentation techniques, practices, and maintenance.
• Strong knowledge of safety equipment and practices.
• Knowledge of sampling and chemical techniques (lab testing).
• Ability to work unsupervised in a variety of maintenance and emergency situations.
• Must be familiar with all Wastewater and Biosolids Regulations to ensure compliance is maintained.
• Ability to work from and interpret work orders, specifications, standards, and instructions and to interpret…