Contaminant Hydrogeologist

Job Description

Posted Monday, April 27, 2026 at 8:00 AM

Are you the kind of environmental professional who doesn't just characterize contaminated sites, but quietly shapes how they get managed, remediated, and closed out?

If you're at your best when you're deep in the data, leading Phase I and Phase II ESAs, mentoring the next wave of scientists and engineers, and bringing technical rigor to every report that leaves your desk, this role is your next career step!

This isn't a back-office technical reviewer position. You'll sit at the intersection of science, regulation, and client service, leading complex site investigations across Alberta while helping the next generation of environmental professionals grow on our team.

You'll be trusted to take ownership of complex sites, challenge interpretations where needed, and help clients and operational leaders navigate Alberta's regulatory landscape without losing sight of the technical detail that drives defensible outcomes.

ISL is comprised of just over 600 employees including award-winning engineers, technologists, planners, landscape architects, scientists, and much more that work together to deliver infrastructure projects that minimize environmental impacts and maximize benefits to the community.

• We have extensive expertise – We have a variety of expertise and are comprised of five sectors specializing in Transportation, Municipal and Community, Bridges, Building and Structures and Land and Environment. Learn more about our areas of practice.
• We are award winning and recognized in industry – Visit our #ISLLife blog and learn more.

We are seeking a motivated and experienced Environmental Site Professional to join our growing team in Alberta. This role is ideal for an intermediate to senior-level professional with a strong background in contaminated sites, hydrogeology, or environmental engineering/science, and a passion for technical excellence and mentorship.

You will play a key role in delivering high-quality environmental assessments and remediation projects while supporting team development and contributing to a collaborative work environment.

Key responsibilities include:

• Lead and manage Phase I and Phase II Environmental Site Assessments (ESAs) or contaminated sites.
• Interpret hydrogeological and environmental data to support site characterization and risk assessment.
• Provide senior technical review of reports, ensuring accuracy, completeness, and regulatory compliance.
• Support and mentor junior and intermediate staff.
• Coordinate and collaborate with multidisciplinary project teams.
• Communicate effectively with clients, regulators, and internal stakeholders.
• Contribute to project planning, execution, and reporting.

• Bachelor’s or graduate degree in Environmental Engineering, Hydrogeology, Environmental Science, or a related discipline.
• Minimum 5+ years of relevant experience in environmental consulting.
• Professional designation: P.Eng., P.Geo., or P.Ag., or eligibility for immediate registration.
• Strong working knowledge of Alberta regulatory frameworks, including Tier I and Tier II guidelines.
• Interest or experience in business development with established client relationships in industry.
• Strong leadership capabilities with ability and desire to mentor junior professionals.
• Proven senior review capability with a high level of attention to detail.

• Experience with MODFLOW and/or contaminant fate and transport modelling.
• Background in remediation and complex site management
  .
• Experience with physical hydrogeology (e.g., aquifer testing).
• Interest or experience in business development and client relationship management
  .

You’ll do well here if you:

• Bring strong technical expertise in contaminated sites and hydrogeology
  .
• Navigate Alberta's regulatory framework (Tier I/II) with confidence.
• Deliver senior-level review with a high degree of attention to detail.
• Approach the work with a mentorship mindset and team-oriented attitude.
• Communicate clearly and effectively
  , both in writing and verbally.
• Manage multiple priorities delivering high quality work.