Remediation & Engineering Design

THG and Associates conducts engineering design for turnkey environmental assessment and remediation projects as well as specialty engineering applications. THG design teams are selected for each project based on the objective of overall design effectiveness and cost efficiency.

Remedial Design

Air, soil and groundwater remediation is routinely conducted to reduce contaminant concentrations at RCRA, CERCLA and UST spill and release sites. THG’s remedial design background covers the complete spectrum of treatment technologies both in-situ and ex-situ. These include the following:

  • Vacuum Extraction and Treatment
  • Interceptor Walls and Trenches
  • Soil Venting
  • Enhanced Bioremediation
  • Vapor containment / treatment
  • Geologic / membrane caps and liners

Facility Design

THG conducts a wide variety of industrial facility design and operating specifications. Whether the work is a response to regulatory compliance requirements or production enhancement, THG provides the most efficient design and operations specifications. Examples of this work include the following:

  • UST system upgrade and replacement
  • Sump design and certification
  • Filtration systems
  • Stormwater drainage systems
  • Waste containment and permitting