Soil & Groundwater Characterization

Metra Consultation provides soil and groundwater characterization services to support building, infrastructure, excavation, drainage, pavement, foundation, and land-development projects throughout Québec.

Understanding soil stratigraphy and groundwater conditions is essential for evaluating bearing capacity, settlement, excavation stability, drainage, infiltration, frost susceptibility, and construction feasibility.

Soil Characterization

Our soil-characterization services may include:

  • Review of geological and historical information

  • Borehole drilling and test pits

  • Soil sampling and field classification

  • Identification of fill and native soils

  • Evaluation of soil density or consistency

  • Assessment of organic, loose, compressible, or sensitive materials

  • Grain-size and plasticity testing

  • Compaction and moisture-density testing

  • Shear-strength and consolidation testing

  • Permeability and infiltration-related testing

  • Frost-susceptibility assessment

  • Evaluation of suitability for reuse as engineered fill

Testing is selected according to the project objectives and materials encountered.

Groundwater Characterization

Groundwater can affect foundations, basements, excavations, slopes, underground services, infiltration systems, and construction operations.

Our groundwater services may include:

  • Groundwater observations during drilling or excavation

  • Installation of monitoring wells or piezometers

  • Measurement of groundwater elevations

  • Evaluation of seasonal fluctuations

  • Identification of seepage zones

  • Assessment of potential excavation inflow

  • Review of uplift and hydrostatic-pressure considerations

  • Support for temporary dewatering planning

  • Coordination with foundation drainage and waterproofing

  • Evaluation of groundwater limitations on stormwater infiltration

Because groundwater levels can vary seasonally and after heavy rainfall or snowmelt, monitoring requirements are established according to project sensitivity.

Engineering Applications

Soil and groundwater characterization may support:

  • Shallow and deep foundation design

  • Bearing-capacity and settlement analysis

  • Basement and slab design

  • Excavation and shoring

  • Dewatering and groundwater control

  • Retaining walls and slope stability

  • Pavement and road design

  • Earthwork and engineered fill

  • Underground utility installation

  • Stormwater infiltration systems

  • Assessment of existing structural distress

Environmental Considerations

Visual observations, odours, staining, unusual fill, or historical site use may indicate potential environmental concerns. Geotechnical characterization does not automatically constitute an environmental site assessment or contaminated-soil investigation.

When environmental characterization is required, the scope, sampling methods, laboratory analyses, and regulatory requirements must be specifically established and coordinated with qualified environmental professionals.

Deliverables

Depending on the mandate, our report may include:

  • Soil stratigraphy and classification

  • Groundwater measurements

  • Field and laboratory test results

  • Interpretation of engineering properties

  • Identification of unsuitable or sensitive soils

  • Geotechnical design parameters

  • Groundwater and construction considerations

  • Recommendations for foundations, earthworks, drainage, or infiltration

  • Requirements for additional investigation or monitoring

Integrated Engineering Support

Metra Consultation coordinates geotechnical findings with structural foundation design, civil grading and drainage, underground infrastructure, excavation planning, and BIM coordination.

Contact Us

Contact Metra Consultation to determine the soil and groundwater information required for your project and develop an investigation program suited to the site conditions.