We believe environmental responsibility and human progress are interconnected, interwoven and international. Our scientists, engineers, field teams, consultants and professionals collaborate across disciplines and geographies, guiding industries and governments, ensuring that communities and environments thrive. As an Intermediate Geoscientist within our Groundwater, Mining & Infrastructure Team, based out of our Guelph or Oakville, Ontario office, you will support groundwater resource, mine water management, environmental permitting, infrastructure dewatering, and hydrogeological characterization projects for clients across Canada.

You will contribute technical expertise to groundwater investigations, aquifer testing, dewatering assessments, mine closure planning, water management planning, and regulatory approvals throughout the project lifecycle, from planning and environmental assessment through construction, operations, and closure. Design and execute hydrogeological investigations including drilling programs, monitoring well installation, groundwater sampling, slug testing, and pumping tests. Conduct groundwater resource evaluations, groundwater impact assessments, hydrogeological conceptual model development, and water balance assessments.

Support water supply investigations and water taking (PTTW) applications. Contribute to water balance modeling and water management plans for active and closed mine sites Support environmental assessment and permitting work under the federal Impact Assessment Act, provincial Environmental Assessment Act processes, and Environmental Compliance Approvals (ECAs) Assist with Fisheries Act and Metal and Diamond Mining Effluent Regulations (MDMER) compliance monitoring and reporting Support field programs including groundwater and surface water monitoring,



soil and rock sampling, and geotechnical/hydrogeological drilling oversight Prepare technical reports, permit applications, and regulatory submissions for mining, infrastructure, municipal, and industrial clients. Liaise with clients, regulators, contractors, and Indigenous communities on environmental and water management matters.

These requirements reflect the knowledge, skills and abilities that help you do your best work here. Undergraduate or Graduate Degree in Geology, Geological Engineering, Environmental Engineering, Hydrogeology, or a related earth science field.

Qualified

Geoscientist (P.A minimum of 4+ years of experience in hydrogeological consulting, groundwater resources, mining environmental services, infrastructure dewatering, or related environmental consulting. Practical experience with ARD/ML characterization methods, including static and kinetic geochemical testing programs.

Experience designing and implementing groundwater monitoring programs, aquifer testing programs, and groundwater sampling investigations.

Experience with hydrogeological characterization, groundwater flow interpretation, and conceptual site model development. Working knowledge of the Ontario Water Resources Act, Permit to Take Water requirements, O.

Experience with mine site hydrogeological characterization, water balance modeling, and water management plan development.

Experience supporting infrastructure dewatering,



groundwater control, or construction water management projects is considered an asset.

Experience with hydrogeological software such as MODFLOW, FEFLOW, AQTESOLV, Leapfrog Works, GIS platforms, Surfer, or equivalent tools. Strong client liaison, field program management, and technical writing skills. Willingness to travel to remote and northern project sites.

The physical and environmental requirements below reflect what’s typically needed to perform the essential functions of this role safely and effectively. Works in an office environment when not conducting mine site field investigations or attending client meetings Often works outdoors and may be exposed to hot and cold environments and extreme weather conditions, including sunlit, rainy and windy conditions Onterris provides support in its recruitment processes to applicants with disabilities; Please note, we are not accepting third party agency applicants at this time. We acknowledge that these experiences and perspectives help to enrich our teams and contribute to our ongoing success.

Andre

Richardson, Consulting “There are not many places where a toxicologist can be boots-on-the-ground at an environmental emergency one day and deep in a human health risk assessment or litigation the next, but this company is one of them, and honestly, that breadth is what makes me love the work. We are a team of scientists with a broad range of talents and experiences who genuinely take the mission to heart, because protecting people and communities from chemical hazards is not abstract here; Every day is a new, exciting challenge to solve, and I get to go home knowing that the work I am doing is having a positive impact on the world.” #

📌 Consulting Geologist (Guelph)
🏢 LE044 Onterris Canada
📍 Guelph