• Subsurface Exploration Programs
  • Foundation Recommendations
  • Geotechnical Analysis and Design
  • Evaluation of Existing Foundation Conditions
  • Foundation Drainage Design
  • Geotechnical Instrumentation Installation and Monitoring
  • Construction Quality Assurance/Quality Control (QA/QC) Observation
  • In-place (Compaction) Density Testing
  • Construction Vibration Monitoring
  • Hydrogeologic Groundwater Flow/Mounding Analysis
  • Slope Stability Analysis
  • Soil Laboratory Testing
  • Soil Permeability Testing
  • Peer Reviews and Expert Witness Testimony


Geotechnical Engineering
Geoenvironmental Engineering
Geothermal Energy
Contractor Support
Foundation Waterproofing


40+ Years Of Experience

Since 1976 McPhail Associates has been providing geotechnical engineering services to architects, owners, contractors, institutions and developers. Over the years our services have expanded to include geoenvironmental, geothermal energy and below-grade waterproofing consultation.

In addition, we offer a wide variety of contractor support services. We remain true to the vision of our founder, Robert E. McPhail, and continue to be creative, practical, respected problem solvers, always keeping our clients’ best interest and vision in mind.