Water & Wastewater Technician

Ontario Clean Water Agency; Mississauga; Hybrid; CAD 47,000 - 51,000; Full time

Benefits offered by this job

Defined benefit pension plan

Comprehensive health plan

Maternity and parental leave top-up

Job summary

Ontario Clean Water Agency (OCWA) seeks a Water & Wastewater Technician to operate a large 1200 ML/day facility and manage complex treatment processes in Mississauga. The role requires on‑call availability and rotating shifts to ensure continuous compliance and service quality.

You will work with Ultrafiltration, UV disinfection, carbon contactors, conventional treatment, and chemical systems, adapting to dynamic operational conditions while protecting public health and the environment.

Qualifications

• Class 1 certification in Water Treatment is mandatory; may consider OIT underfill as per O.Reg.128/04.
• Valid Class G driver's license.
• Must be available to be on-call after regular working hours.
• Must be willing to work shifts.

Responsibilities

• Operate a technologically complex Class 4 Water Treatment facility to meet regulatory and contractual obligations.
• Ensure safe and efficient operation of all systems; monitor readings and take corrective actions.
• Maintain equipment, perform scheduled readings, and document data in CMMS/SCADA systems.

Skills

Analytical skills

Oral communication

Problem solving

Written communication

Teamwork

Blueprint reading

Technical docs

Continuous learning

Dexterity

Education

Class 1 Water Treatment certification

Operator-in-Training (OIT)

Tools

SCADA

CMMS

Job description

Application Deadline: 2026-09-01 Position Title: Water & Wastewater Technician Division: APK Operations (Darcy McDonald) Location: 920 East Avenue Mississauga, ON L5E 1W6 Canada Location Hierarchy: Central Worker Type: Fixed Term (Fixed Term) Number of Positions: 1 Job Duration: Up to 12 Months Job Term: Full time Job Code: Job Code: 40402P Salary: $34.08 - $37.21CADHourly Posting Status: Post Internally Only OPS Job ID: 248193

Water is our business and our passion. It can be yours too. The water professionals at OCWA know the value of water better than anyone. Our work benefits communities across Ontario every day. Our job (and possibly yours) is also to return treated and safe water back to our lakes and rivers. At OCWA, we have a deep respect for the environment and our responsibility for the health of the communities we serve drives us. A job at OCWA is an opportunity to make a positive impact on millions—a big responsibility. Are you ready? We think you are. So come on in. The water is perfect. In this role, you will be responsible for the optimal operation of a technologically complex and advanced Class 4 Water Treatment facility with a rated capacity of 1200 mega liters per day, which supplies drinking water to several municipalities. This requires knowledge of various treatment processes including Ultrafiltration Membranes, Ultraviolet Light Disinfection, Biologically Active Carbon Contactors, Conventional Treatment, and various chemical systems. Working on a rotating shift schedule, as part of your operational duties this position ensures the safe and efficient operation of all systems required to operate water facilities to meet regulatory compliance, contractual obligations, and protect the health of residents and environment. Equipped with personal protective equipment you will need to be able to work in all weather conditions, in confined spaces, dirty and/or noisy environments and have physical dexterity. In water / wastewater facilities, physical dexterity includes but is not limited to: walking, standing, sitting, lifting floor to waist, lifting waist to shoulder, kneeling, crouching, bending, twisting, stair climbing, ladder climbing, pushing, pulling, carrying, handling, fingering, reaching forward, reaching overhead.

Mandatory

• Class 1 certification in Water Treatment o May consider lesser qualified candidates as underfill - minimum Operator-in-Training (OIT), as specified in O.Reg. 128/04 of the Safe Drinking Water Act.
• Valid Class G driver's license.
• Must be available to be on-call after regular working hours.
• Must be willing to work shifts.

Knowledge

• Applied knowledge of the operation and maintenance of advanced water treatment plants, with conventional treatment, ozone oxidation, use of liquid oxygen, oxygen, Ultraviolet disinfection, ultrafiltration membranes, advanced oxidation, Granular Active Carbon and Biological Active Carbon Contractors.
• General knowledge of industrial processes and maintenance and repair of a variety of equipment and structures such as hydraulic, electric and mechanical plant equipment such as gauges, pumps, valves, fittings, piping, tanks, heating boilers, incinerators, hydraulic ram pumps, centrifuges, air blowers, screens and conveyors and sufficient to operate, inspect, clean, and maintain them by conducting scheduled readings and recordings; monitoring local process conditions and equipment operations (flow rates, temperatures and pressures).
• Familiarity with the requirements of the Occupational Health and Safety Act and its regulations for the safe performance of his/her duties. Knowledge of occupational hazards and standard safety precautions including storage of chemicals, confined space entry, equipment lockout/tagging and personal protective equipment.
• Knowledge of basic mathematics in order to make calculations regarding chemicals and operating processes.
• Familiarity/competency with computerized monitoring systems such as SCADA, Computerized Maintenance Management Systems (CMMS) and overall computer literacy to record data from inspections and monitoring activities to complete work orders, project forms to initiate repairs for maintenance.
• Working knowledge of basic chemistry, biology, thermodynamics and hydrology and be able to apply these principles to operational activities and process adjustments.

Skills and Ability

• Analytical and evaluative skills to identify and correct operating discrepancies; to trace abnormal conditions or noise; to report major deviations or conditions that don't respond to normal corrective actions; and to determine from several choices the method to restore normal operating conditions.
• Good oral communication and interpersonal skills to liaise with clients and mentor/train new staff.
• Good problem solving skills to report equipment problems or malfunctions in order to ensure urgency of the problem is conveyed and understood, and to receive direction for corrective response.
• Good written communication skills to write reports and maintain neat and accurate records.
• Ability to work well in a team, and to take initiative when required.
• Ability to read and interpret blueprints engineering drawings and follow process drawings to aid in troubleshooting equipment problems.
• Ability to use and understand operating and maintenance manuals, and other technical specifications.
• A demonstrated interest in continuous learning.
• Equipped with personal protective equipment ability to work in all weather conditions, in confined spaces, dirty and/or noisy environments and have physical dexterity. In water / wastewater facilities, physical dexterity includes but is not limited to: walking, standing, sitting, lifting floor to waist, lifting waist to shoulder, kneeling, crouching, bending, twisting, stair climbing, ladder climbing, pushing, pulling, carrying, handling, fingering, reaching forward, reaching overhead.

What's in it for you?

Flexible learning and development opportunities Opportunities for career advancement and specialization with the largest provider of water and wastewater services in Ontario. A wide-ranging compensation structure focused on pay for certification, on-call pay, call-back pay, over-time and Overall Responsible Operator (ORO) pay. Work with the partner of choice for more communities than any other water and wastewater service organization in Ontario for over 30 years. Work with an organization committed to innovation and advanced technology.

A defined benefit pension plan; comprehensive health plan; life and disability insurance. Maternity and parental leave top-up benefits including for adoptive parents.

OCWA's Operator Career Path Program: The Operator Career Path Program provides learning, continuing education, career development and certification advancement opportunities. As you develop and obtain higher level licenses, you will progress through the Operator Career Path with increased operational responsibilities as well as training and mentoring opportunities. When you successfully obtain a higher certification/license, you will be eligible for additional base or premium pay in accordance with the schedule below. OCWA offers internal career progression for Operators through the Operator Career Path to encourage them to pursue higher‑level licences.

The salary ranges below will be applied based on the certification you hold at the time of hire and will be progressed internally upon obtaining higher‑level certification/license:

$24.88 to $26.41 per hour (OIT)

$27.92 to $31.06 per hour (Level 1 Operator)

$29.49 to $32.83 per hour (Level 2 Operator)

$30.67 to $38.04 per hour (Level 3 or 4 Operator)

OPS/OCWA's commitment to diversity, inclusion, accessibility, and anti-racism:

We are committed to build a workforce that reflects the communities we serve and to promote a diverse, anti-racist, inclusive, accessible, merit-based, respectful and equitable workplace. We invite all interested individuals to apply and encourage applications from people with disabilities, Indigenous, Black, and racialized individuals, as well as people from a diversity of ethnic and cultural origins, sexual orientations, gender identities and expressions.

Visit the OPS Anti-Racism Policy and the OPS Diversity and Inclusion Blueprint pages to learn more about the OPS commitment to advance racial equity, accessibility, diversity, and inclusion in the public service. We offer employment accommodation across the recruitment process and all aspects of employment consistent with the requirements of Ontario's Human Rights Code.

The Ontario Clean Water Agency is an inclusive employer and we offer employment accommodation across the recruitment process and all aspects of employment consistent with the requirements of Ontario’s Human Rights Code.

The Ontario Clean Water Agency is an agency of the Province of Ontario, reporting to the Ministry of the Environment, Conservation and Parks. As the largest provider of water and wastewater services in Canada, we manage over 800 facilities from small well systems and lagoons to large water and wastewater treatment plants.

Consider this opportunity if you are a motivated, team oriented individual seeking a career in the water and wastewater industry.

We thank you for your interest, and we will only contact you if we choose you for further screening or an interview.

Career decisions can be murky and hard to navigate. OCWA makes it easy. If you’re looking for career potential through purposeful work, meaningful recognition and a lifetime opportunity for individual growth, OCWA is where you can thrive. Join an inclusive team environment and unlock your potential in a supportive, recognition‑based culture. With water, your career path is clear.

OCWA is an agency of the Government of Ontario, reporting to the Ministry of the Environment, Conservation and Parks. For more than 30 years, municipalities, First Nations communities, institutions and industry have put their trust in OCWA to provide water, wastewater and stormwater services. Our extraordinary work demands a community of remarkable people. A career at OCWA is an opportunity to achieve your potential through meaningful, important work.