Site Investigations

Soil samples

Site investigation includes the use of intrusive techniques such as the formation of test pits and trenches, boreholes fitted with instrumentation for monitoring of the ground and groundwater and in-situ testing.

The purpose of a Geotechnical or Phase II site investigation is to ascertain the geotechnical and geo-environmental parameters of the site in question to enable an accurate and value engineered foundation design, remediation/stabilization strategy and solution to be formulated.

By completing a site investigation that is adequate and appropriate to the end use of your site you will be able to manage and control the risks associated with your project.

We offer the following site investigation services:

  • Test pitting and trenching
  • Instrumentation installation and management
  • Long term groundwater monitoring
  • Geotechnical logging by qualified personnel
  • Sub-grade inspection


Landslide at highway construsction site

Geotechnical engineering is the application of the sciences of soil and rock mechanics, engineering geology and other related disciplines to civil engineering design and construction, and to the preservation and enhancement of the environment. Geotechnical engineering plays a key role in all civil engineering projects, since all construction is built on or in the ground.

CSL’s engineering team have extensive experience of site operations and technical knowledge to deliver the geotechnical services required to ensure the successful start of any project. These skills can be brought to your project, we understand that every project requires and individual approach. We can either scope your investigation and design work for you or advise your team of our recommendations.

We work with our Clients, and their teams, to understand the type and level of data that is required for the design team and project: whether it is soil profiles, environmental data, parameters for detailed design or geotechnical design expertise. We become part of the design team and use our skills and knowledge to add value and help mitigate the risk ground conditions can pose for a site.

CSL provides following Geotechnical Services:

  • Shallow and Deep Foundation Design
  • Slope Stability Assessment
  • Culvert Design
  • Embankment Design
  • Earth Retaining Structures
  • Dewatering Analysis
  • Pavement Design


Aerial shooting at the construction site.Landfill.

Specialists in contaminated land assessments and developing remediation plans, we can assess and advise on geo-environmental risks for all forms of property transaction and site redevelopment.

CSL provides intrusive environmental investigation services including in-situ sampling and testing, installation of instrumentation for long term in-situ groundwater sampling and monitoring.

All works are carried out in accordance with current environmental guidelines, procedures, legislation and best practice.

CSL offers advice on environmental sampling and testing regimes, waste disposal, soil treatment, site remediation, and many other environmental aspects relating to the redevelopment of sites.

CSL provides following Environmental Services:

  • Phase I/II/III Environmental Site Assessments
  • Hydrogeological Investigations
  • Hydrological Studies
  • Baseline Environmental for Mining Sector
  • Permitting and Approvals
  • Aggregate Pits
  • Permit to Take Water
  • Stream Crossing
  • Land Use Permits
  • Provincial and Federal EA’s
  • Emergency Spill Response
  • Clean-up Assessment
  • TSSA Compliant Tank Pull Reports,
  • Landfill Assessments (environmental and life span)


GPS antenna

CSL owns and operates a modern Topcon Real Time Kinematic (RTK) GPS survey unit capable of providing:

  • Topographical Surveys
  • Construction Layouts
  • Volumetric Calculations
  • Establishing Horizontal and Vertical Control
  • Drainage Plans

The surveys are intended for both Architectural, Construction and Engineering use and are provided in CAD format to appropriate scale.

Professional Affiliations

CSL maintains Certificates of Authorization in good standing with the Professional Engineers of Ontario (PEO) and Professional Geoscientist of Ontario (PGO).

Professional Geoscientist of Ontario

Professional Engineers of Ontario