A Phase II subsurface investigation should only be undertaken upon the successful completion and review of a comprehensive Phase I audit or when contamination is known to exist and requires definition. The objective is to gather quantitative data to determine the extent of contamination or potential liability and project clean-up or remedial costs for the property. Phase II subsurface investigations are typically required for dry cleaners, gas stations, plating shops, or other properties which routinely use hazardous materials and have a suspicion of leakage or spills that may be significant.

Centec Engineering personnel may undertake the following tasks to complete a Phase II subsurface investigation:

  • Soil or groundwater sampling and laboratory analysis for Petroleum hydrocarbons, metals, solvents, pesticides, PCBs, etc.
  • Sampling of groundwater with temporary probes or installation of monitoring wells
  • Remediation cost estimates
  • Suspected asbestos and lead-based paint surveys
  • Soil vapor surveys
  • Hydrogeological and geophysical survey
  • Sampling of indoor air

The successful completion of an effectively-designed Phase II subsurface investigation will provide the necessary data to quantify the full vertical and lateral extent of any contamination present, as well as provide the essential tools to properly apply a risk assessment forecast and identify the true value of a property.