• Property Due Diligence; Environmental Site Assessments
  • Geoenvironmental Analysis (Soil, Groundwater, Soil Gas, and Indoor Air)
  • Design and Contracting of Environmental Remediation
  • State and Federal Regulatory Compliance Including Licensed Site Professional (LSP) Services
  • Remediation Quality Assurance (QA)/Quality Control (QC) Observation
  • Dewatering Permit Applications and Regulatory Compliance
  • Air and Dust Monitoring
  • Radon Testing and Radon Mitigation Design
  • Soil Disposal Pre-Characterization
  • Aboveground Storage Tank (AST)/Underground Storage Tank (UST) Environmental Assessment and Closure
  • Soil Disposal Facility Profile Preparation


45+ 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, and geothermal energy.

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.