Remediation and Earthmoving Services

Soil & Groundwater Remediation and Field Services

Drilling, Excavation & Field Services for Environmental Remediation Projects

Terra Firma Environmental Services Ltd. provides specialized drilling, excavation, earth-moving, and field services to support soil and groundwater remediation projects throughout Ontario.

As a drilling and field-services contractor, Terra Firma works alongside environmental consultants, engineers, remediation contractors, developers, and other project professionals. Our role is to provide the equipment, experienced crews, and field services required to carry out the physical work identified by the project team.

The environmental consultant or engineer determines the investigation requirements, remediation approach, sampling program, and technical objectives. Terra Firma provides the drilling, excavation, tank removal, soil handling, and other field services required to implement the project.

Drilling & Remediation Support Services

Contaminant Investigation & Delineation

Environmental consultants may require additional boreholes to determine the location, depth, and extent of impacted soil or groundwater. Terra Firma can advance boreholes and collect soil samples according to the consultant's specifications.

Monitoring Well Installation

Monitoring wells are commonly required to assess groundwater conditions and monitor contamination over time. Terra Firma installs monitoring wells at locations and depths specified by the environmental consultant or engineer.

Soil Sampling

Our drilling crews can obtain soil samples during borehole advancement for laboratory analysis. Sampling requirements, depths, and analytical parameters are established by the project consultant or engineer.

Groundwater Investigation

Terra Firma provides the drilling and monitoring well installation required for groundwater investigations. Subsequent groundwater sampling and interpretation are typically performed by the environmental consultant or other qualified project professional.

Underground Storage Tank Removal

Underground fuel and storage tanks can be a potential source of soil and groundwater contamination, particularly where tanks have leaked or have reached the end of their service life.

Terra Firma can provide underground tank removal and associated excavation services as part of an environmental investigation or remediation project.

Our crews can assist with:

Where contamination is encountered, the environmental consultant or engineer can direct the required sampling, assessment, and remediation measures.

Excavation & Earth-Moving Services

Terra Firma has excavators and earth-moving equipment that can be used to support environmental remediation and site cleanup projects.

Having excavation equipment and drilling capabilities allows Terra Firma to provide a broader range of field services through a single contractor. Depending on the project requirements, our equipment can support:

Remediation Support

During remediation, additional drilling or excavation may be required to investigate areas of concern, remove impacted soil, install monitoring wells, or provide access for further investigation.

Terra Firma can combine drilling, excavation, earth-moving, and other field services to support the project as requirements change in the field.

This can be particularly useful on sites where contaminated soil must be excavated, transported within the site, stockpiled, sampled, or removed as part of the remediation program.

Confirmation & Post-Remediation Drilling

Once remediation work has been completed, additional boreholes may be required for confirmation sampling or to investigate remaining areas of concern. Terra Firma can provide the drilling and sampling support specified by the project consultant.

Monitoring Well Decommissioning

When monitoring wells are no longer required, Terra Firma can provide monitoring well decommissioning services in accordance with the requirements provided by the project consultant and applicable Ontario requirements.

One Contractor for Drilling & Site Field Services

Environmental remediation projects can involve several different types of field work. Terra Firma’s combination of drilling capabilities, excavators, earth-moving equipment, and experienced field crews allows us to support multiple aspects of a project.

Instead of coordinating separate contractors for drilling and certain excavation activities, project teams can engage Terra Firma for a broader range of field services where appropriate.

Our crews work from the investigation plans, specifications, borehole locations, excavation limits, sampling requirements, and instructions provided by the environmental consultant or engineer.

Working With Environmental Consultants & Engineers

Terra Firma’s role is to provide the drilling, excavation, and field services required by the project team.

Our experienced crews communicate unexpected subsurface conditions or field issues to the consultant’s team so that the appropriate technical decisions can be made.

Experienced Drilling & Field Contractor

With more than 20 years of drilling experience, Terra Firma Environmental Services Ltd. has worked on environmental and geotechnical projects involving a wide range of soil, groundwater, and site conditions.

Our drilling equipment, excavators, earth-moving equipment, and experienced field crews allow us to support projects ranging from individual property investigations to larger commercial, industrial, municipal, and redevelopment sites.

Planning an environmental investigation or remediation project? Contact Terra Firma Environmental Services Ltd. to discuss your drilling, excavation, tank removal, and field-service requirements.

Environmental Remediation vs Traditional Site Management

Implementing environmental remediation differs significantly from conventional site management approaches.

Risk Reduction

  • Directly removes or neutralizes hazardous substances, reducing long-term health and environmental risks.
  • Prevents further contamination of soil and groundwater.

Regulatory Compliance

  • Ensures adherence to the Ontario Environmental Protection Act (EPA) and municipal guidelines.
  • Supports property redevelopment approvals and commercial permits.

Cost and Efficiency

  • While initial remediation costs can be significant, proper planning reduces the likelihood of future liabilities.
  • Long-term site monitoring ensures contamination does not recur.

Terra Firma Environmental Services Ltd aims to provide structured and efficient environmental remediation projects in Toronto that comply with all regulatory requirements while protecting public health and the environment.