Apply By: Thursday, July 2, 2026 11:59 pm EDT

Aquatic Toxicology Technologist

Job ID:
245724
Organization:
Ministry of the Environment, Conservation and Parks
Division:
Environmental Sciences and Standards Division, Laboratory Services Branch
City:
Etobicoke
Position(s) language:
English
Job term:
1 Permanent
Job code:
16053 - Technologist 2, Chemical Lab
Salary:
$1,286.92 - $1,518.87 Per week*
*Indicates the salary listed as per the OPSEU Collective Agreement.

Clean, safe source waters is essential in protecting the health of people, the natural environment and communities in Ontario. By joining the Ministry of the Environment, Conservation and Parks, in our Laboratory Services Branch, you will contribute to the protection of our lakes, rivers and streams by supporting the analytical testing of environmental samples for toxicity.

If you are interested in providing specialized analytical laboratory support in support of environmental monitoring programs, special studies, emergency responses, litigation and method development, then please consider this exciting opportunity.

About the job

In this role, you will:

• provide general laboratory testing culturing and related activities in the Aquatic Toxicology Unit
• provide data management, interpretation and reporting as well as quality management support to the unit
• possibility of field work to collect samples

NOTE: Job requires working weekends and holidays on a rotating basis (up to 26 weekends/year). Schedule to be determined.

What you bring to the team


Mandatory requirements

• The position requires the successful candidate to have a valid class G driver's licence or equivalent. The offer of employment is conditional upon the successful candidate providing proof that they have a valid driver's licence upon being hired.

Environmental Testing Knowledge and Experience:

• You have knowledge of the science, theories, principles and practices of aquatic biology (e.g. toxicity testing and aquaculture) as it applies to environmental testing
• You have knowledge of systems for maintaining appropriate environmental conditions for maintaining healthy organisms in cultures and for testing
• You have the knowledge of the techniques and practices of humane test culture maintenance to ensure healthy test specimens
• You have knowledge of the techniques for the collection and preparation of water and sediment samples for biological testing to provide advice to clients or to take samples
• You have practical experience in an environmental lab culturing and performing aquatic toxicity testing and bioaccumulation studies using aquatic organisms such as Rainbow trout, Fathead minnows, Lumbriculus variegatus, Hexagenia spp., Hyalella azteca, Chironomus dilutus and Daphnia magna.

Environmental Legislation and Guidelines:

• You know relevant occupational health and safety legislation (e.g. Workplace Hazardous Materials Information System (WHMIS) and Safety Data Sheets (SDS))
• You have knowledge of effluent toxicity limits and water quality objectives under provincial and federal regulations and guidelines
• You have knowledge of Ontario and Canadian water discharge regulations and associated toxicity testing requirements to perform tests correctly
• You have knowledge of laboratory quality assurance practices and ISO 17025 standards

Project Management, Analytical and Research Skills:

• You have experience managing multiple, technical projects and scientific studies
• Job requires analytical and investigative skills to summarize test findings and provide conclusions and recommendations or best professional judgment, (e.g. recommending follow-up actions to management on standard method requirements)
• You have diagnostic and problem solving skills to detect and react to a problem
• Job requires knowledge and experience with the operation and maintenance of basic analytical instrumentation to measure chlorine (amperometric titration) and ammonia content (specific ion meter) as well as pH (pH meter) and conductivity (conductivity meter) of water samples to ensure quality results and basic laboratory equipment such as balances, microscopes and pipettes.

Computer and Communication Skills:

• You can communicate in a clear and concise manner
• You can draft a variety of written materials and have experience preparing scientific reports and papers for publication
• You contribute to a team environment and share duties in a collaborative manner
• You have knowledge of databases such as Laboratory Information Management System, mathematical and statistical tools, word processing, data management and assessment to evaluate and summarize test results.

Don't meet every qualification?

If you are excited about this position and meet most, but not all, of the listed qualifications, please still consider applying. We recognize that no one person might have every qualification in this job ad, and you just might be the right candidate!

How we support diversity, inclusion and accessibility

We are building an inclusive workforce that reflects the communities we serve. We encourage everyone interested in working with us to apply, including people with disabilities, Indigenous, Black and racialized individuals, as well as people from all ethnicities, cultures, sexual orientations, gender identities and gender expressions.

Our hiring process is accessible, consistent with Ontario's Human Rights Code and the Accessibility for Ontarians with Disabilities Act, 2005. We are working to prevent and remove barriers in our hiring processes and can offer  accommodation to address specific needs related to Code-protected grounds such as disability, family status and religion. For more information about accommodation during the hiring process please  contact us.

Learn more about the work the OPS is doing to create an inclusive, anti-racist, accessible and diverse workplace:

Additional information:

Apply by:
Thursday, July 2, 2026 11:59 pm EDT
Position details:
  • 1 English Permanent, 125 Resources Rd, Etobicoke, Toronto Region
Compensation group:
Ontario Public Service Employees Union
Work hours:
Category:
Science
Posted on:
Wednesday, June 17, 2026

How to apply:

  1. You must apply online.
  2. Your cover letter and resume combined should not exceed five (5) pages. For tips and tools on how to write a concise cover letter and resume, review the Writing a Cover Letter and Resume: Tips, Tools and Resources.
  3. Customize your cover letter and resume to the qualifications listed on the job ad. Using concrete examples, you must show how you demonstrated the requirements for this job. We rely on the information you provide to us.
  4. Read the job description to make sure you understand this job.
  5. OPS employees are required to quote their WIN EMPLOYEE ID number when applying.
  6. If you require a disability related accommodation in order to participate in the recruitment process, please Contact Us to provide your contact information. Recruitment services team will contact you within 48 hours.

Language requirements and assessment:
All external Ontario Public Service (OPS) job ads are posted in English and French. Check the "position(s) language" section at the top of each job ad for the language requirements. For all roles, candidates are assessed in English, the business language of the OPS. If the position is bilingual (English/French), you'll also need to pass a French-language proficiency test.

Exigences en matière de langue et évaluation:
Toutes les offres d'emploi externes de la fonction publique de l'Ontario (FPO) sont affichées en français et en anglais. Consultez la section « Langue du ou des postes » en haut de chaque offre d'emploi pour connaître les exigences linguistiques. Pour tous les postes, les candidats sont évalués en anglais, la langue d'affaires de la FPO. Si le poste est bilingue (anglais/français), vous devrez également passer un test de compétences linguistiques en français.


Strengthening Ontario, together