With the potential for human health concerns, our clients cannot wait. Our techniques and forensic tools provide clients with rigorous, defensible data as quickly as possible:

• Building pressurization control (BPC)
• Real-time field tests (e.g., portable GC/MS, mobile labs)
• Mass flux testing
• Passive indoor air and soil vapor sampling, with tools like the Waterloo Membrane Sampler™

Temporal and Spatial Variability?

Changes in vapor concentrations over time and location add uncertainty to the understanding of the vapor intrusion pathway and potential risk.  We have developed the industry’s deepest toolbox to manage uncertainty and provide accurate and defensible results:

• High-volume soil gas sampling (HVS)
• Influence of seasonal variability
• Influence of preferential pathways
• VI modeling and conceptual site model development

Public relations and stakeholder confidence

Investors and occupants have reason to worry when a building is shut down for an investigation—they want to know the plan. When the plan involves Geosyntec, clients have a world-class expert with an unparalleled track record for credibility, site closure, community outreach, and regulatory advocacy.

We invent tools for faster, cost-effective assessment

Our practitioners are at the forefront of applied research and development of 3-D model capabilities to simulate the VI pathway with mitigation features added using Computational Fluid Dynamics (CFD). This kind of sophisticated modeling has never been done for mitigation before.

We can help clients investigate VI threats for any scenario:

• Phase II Environmental Site Assessments (ESAs) for real estate transactions
• Voluntary cleanup site investigations at Brownfield sites
• Superfund and RCRA facility investigations
• Response to five-year remedy reviews
• Third-party claims
• Spill responses